113results about How to "Ease the crisis" patented technology

The invention discloses a plastic wood board and a preparation method thereof. The plastic wood board is characterized by comprising the following raw materials in portion by weight: 60 to 85 portions of crop fiber, 20 to 40 portions of waste regenerated plastics, 1 to 2 portions of lubricant, 1 to 5 portions of compatilizer, and 1 to 5 portions of stabilizing agent, wherein the lubricant is paraffin, the compatilizer is one of MAPP and MAPE, and the stabilizing agent is general plastic stabilizing agent; and the raw materials are mixed, extruded, granulated, and then added with glass fiber to be pressed into the plastic wood board, and the thickness of the board is 0.5 to 40 millimeters. The plastic wood board combines the plant fiber with the waste plastics together, needs no adhesive, has no discharged pollution, can be fully recycled, has the advantages of wide application, good property, qualified single evaluation of each index, simultaneously lower requirement on equipment and no limited specification, and can be made into various specifications according to requirements of users.

The invention discloses an itaconic acid-based epoxy resin composition which comprises the components in parts by weight: 100 parts of itaconic acid-based epoxy resin, 5-150 parts of curing agent, 0-6 parts of curing accelerator, 0.1-10 parts of radical initiator and 0.1-100 parts of double-bond-containing component, wherein the double-bond-containing component is more flexible in performance adjustment; the itaconic acid-based epoxy resin not only has two epoxy groups so as to be cured under the action of the epoxy resin curing agent, but also has double bonds so as to be capable of carrying out free radical polymerization under the action of the radical initiator; and furthermore the double-bond-containing component is more flexible in performance adjustment. The invention also discloses a method for preparing an itaconic acid-based epoxy resin cured substance from the itaconic acid-based epoxy resin composition; and the curing method is simple, easy to implement, good in controllability and high in operability.

The invention relates to a method for production of a diesel oil fraction and an aviation fuel fraction by use of animal and plant oils and fats, and the method comprises the following steps: a) performing refining processing on the animal and plant oils and fats; b) performing catalytic hydrogenation and deoxidation to obtain saturated linear alkanes and propane; c) performing hydroisomerization and hydrocracking processing to obtain an alkane material flow with higher branched chain degree; d) separating to obtain liquid hydrocarbons and gaseous hydrocarbons with the boiling point within the boiling point range of diesel oil, aviation fuels and naphtha; e) directly collecting the diesel oil fraction as a product, or cycling in whole or in part to continue isomerization and cracking reaction to increase production of the aviation fuel fraction; and f) mixing propane gaseous hydrocarbon and naphtha for steam reforming hydrogen production reaction, separating and purifying the obtained hydrogen to enter into a circulating hydrogen system; the method is used in the production of the renewable diesel oil and aviation fuels with excellent combustion performance and cold flow performance, and meanwhile efficient utilization of by-products and in-system supplement of hydrogen consumption can be realized.

The invention discloses an epoxy resin composition containing a vanillic aldehyde-based phosphorus containing flame retardant. The epoxy resin composition comprises epoxy resin, a curing agent, a curing accelerant, a primary flame retardant and a flame retardant additive and etc. The flame retardant additive is the vanillic aldehyde-based phosphorus containing flame retardant The invention also discloses an application of the epoxy resin composition, for example, an application of the epoxy resin composition or a cured product thereof as a flame retardant material. When the epoxy resin composition disclosed by the invention is cured and used as a flame retardant material, compared with an existing intumescent fire retardant epoxy system, the epoxy resin composition not only is more excellent in flame retardant property and mechanical property, but also has double functions of saving resources and protecting the environment as the flame retardant additive uses sustainable vanillic aldehyde as a raw material.

The invention discloses a method for preparing magnetic cellulose aerogel by utilizing waste paper. An ultra-light multi-porous gas magnetic hydrophobic aerogel adsorbing material is prepared by using waste paper fibres in life as a raw material; waste paper regenerated cellulose gel is prepared by utilizing an microwave auxiliary ionic liquid dissolution method; black red waste paper cellulose aerogel is obtained through magnetic modification and hydrophobic and oleophobic modification. The magnetic cellulose aerogel disclosed by the invention can effectively remove a variety of organic pollutants and oily materials leaked in water; the absorption multiplying power is high; oil is absorbed thoroughly; an adsorbing material is non-toxic and harmless; the adopted magnetic collecting method is simple and easy to use; secondary pollution is low; the preparation method is simple in process and mild in conditions; waste can be changed into treasure by conventional industrial equipment and low-cost raw materials; the emission of waste water, waste gas and waste residues is avoided in a production process; the method has a wide popularization application value and social significance.

The invention discloses a harmless treatment method of waste biomass in the technical field of biological crude oil and fuel gas preparation. The method comprises the following steps: adjusting water content in the waste biomass and adding into a reaction kettle and stirring; heating for a thermal hydrolysis reaction; after the reaction, collecting the gas and then residual mixer in the reaction kettle; filtering to obtain biological crude oil and a water phase; further treating the water phase by the anaerobic fermentation technology or supercritical water gasification technology to obtain a fuel gas; and meanwhile, adjusting the water content of the waste biomass by using the anaerobic fermentation effluent or supercritical water gasification effluent for recycling. According to the treatment method of waste biomass, by coupling the thermal hydrolysis technology, the anaerobic fermentation technology and supercritical water gasification technology, no waste is discharged in the whole process, full utilization of carbon resources is realized, the energy crisis can be relieved, the atmospheric pollution is reduced, and the environment is protected.

This invention relates to a kind of soybean protein / aluminium hydroxide nano-composites, its preparation method and application. This kind of materials basically comprises 1~30wt% aluminium hydroxide and 70~99wt% soybean protein and a certain amount of glycerol is also permitted. The preparation method is that, soybean protein (SPI) is dispersed in aqueous aluminium chloride solution by fierce stirring and ammonia is slowly dropped in. the gel-like complex is centrifugated and dried so as to obtain SPI / aluminium hydroxide nano-composites. This kind of materials is mixed with glycerol and thermo compressed to obtain SPI / aluminium hydroxide plastic plates. It has the advantages of simple production, environmental friendliness and good mechanical properties. Therefore, it can be potentially used as a kind of biodegradable green materials.

A soy protein / montmorillonite nanometer composite material, its production and use are disclosed. The material consists of montmorillonite 1~24wt% and soy protein 76~99wt%. The process is carried out by dispersing montmorillonite and soy protein in water proportionally, agitating the two soliquoids while blending, drying to obtain soy protein / montmorillonite nanometer composite, adding into glycerine, mixing by extruder and hot pressing to obtain plastic sheet material. It is simple, has excellent mechanical, thermal, ultraviolet absorbing performances and no environmental pollution. It can be used for optical selectivity and biological degradable material.

The invention provides an injection molding grade natural straw plastic and its preparation method and application. The injection molding grade natural straw plastic is prepared from, by weight, 25-65parts of nature straw, 0-12 parts of filling agent, 25-63 parts of macromolecular resin, and 4-5 parts of macromolecular assistant. The preparation method includes steps of mixing nature straw with granularity of 250-350 meshes with diatomite, macromolecular resin and macromolecular assistant to form a raw material; extruding and pelleting by a dual-screw mixing extruder to obtain the injection molding grade natural straw plastic. The injection molding grade natural straw plastic can replace the application of a traditional thermal plastic resin on daily goods; the injection molding grade natural straw plastic passes through the national food hygienic index and can directly contact food. The injection molding grade natural straw plastic has straw smell, and its smell is durable, fragrantand nature; the product is easy to shape and has straw texture; the injection molding grade natural straw plastic can be applied to food packaging, and is wide in application and not easy to wet and go mouldy.

The invention discloses a preparation method of a novel decanoic acid-palmitic acid / expanded graphite composite phase change energy storage material. The method aims to solve the technical problems that existing phase change materials are higher in phase change temperature, poor in heat conductivity and easy to leak and cannot meet actual engineering requirements. The method comprises the specificsteps as follows: decanoic acid and palmitic acid are heated to be molten and mixed, and a decanoic acid-palmitic acid binary fatty acid eutectic mixture is obtained; expansible graphite is taken, dried and then subjected to microwave treatment, and expanded graphite is obtained; the expanded graphite and the decanoic acid-palmitic acid binary fatty acid eutectic mixture are heated and stirred regularly, so that the decanoic acid-palmitic acid binary fatty acid eutectic mixture is uniformly adsorbed in pores of expanded graphite, and the decanoic acid-palmitic acid / expanded graphite composite phase change material is obtained. The decanoic acid-palmitic acid / expanded graphite composite phase change energy storage material obtained with the method is significant in phase change energy storage capacity and heat conducting property, good in thermal stability, not easy to leak and applicable to the energy saving field of buildings.

The invention belongs to the technical field of boilers and boiler burning and in particular discloses a firewood straw direct-combustion boiler and a combustion process thereof, wherein the boiler comprises a boiler body, a dust collecting chamber, and a thermolysis combustion chamber with a water jacket, a water cooling grate is arranged at the lower end of the thermolysis combustion chamber, a reinforcing combustion chamber is arranged below the water cooling grate and communicated with a boiler gas distributing chamber which is communicated with a boiler heat exchange chamber, the top end of the boiler heat exchange chamber is connected with a chimney communicated with the atmosphere, and the water jacket and the water cooling grate are respectively communicated with a water tank of the boiler heat exchange chamber at one side of the thermolysis combustion chamber. In such technical proposal, the combustion process of the boiler is combined with the structure thereof, thereby realizing the direct combustion of firewood straws, solving the problems of low heat value of the firewood straws and low heat intensity, providing a practical and feasible approach capable of leading to the full use of the firewood straw energy for the firewood straw treatment during the agricultural production and also reducing the environment pollution caused by burning the firewood straws.

The invention belongs to the technical field of biology, and discloses a method for producing butyric acid through fermentation. The method comprises the following steps that 1, Clostrdium tyrobutyricum is activated, and a seed solution is prepared; 2, a mannitol and glucose mixture is adopted as a carbon source, a liquid culture medium is prepared, and sterilization is performed; 3, the seed solution in step 1 is inoculated in the liquid culture medium in step 2, and cell fermentation is performed on the conditions that the temperature is 35-39 DEG C, pH is 5-7 and the rotating speed is 100-300 rpm to obtain butyric acid. The accumulation of by-product butyric acid can be lowered, the conversion rate and the selectivity of the target product butyric acid are improved, and therefore the follow-up separation and purification cost can be lowered. In addition, the mixed substrate can be replaced with brown alga hydrolysate or brown alga processing waste, and therefore efficient biologicalconversion from cheap marine biomass to high-selectivity butyric acid is achieved.

The invention discloses a long-distance displacement system for an electrified towed motor vehicle, which comprises rails and a trailer which are laid on each lane of an expressway, wherein the trailer comprises a vehicle body, a machine case, wheels, a transmission shaft, a connector, a control system and so on. The long-distance displacement system for the electrified towed motor vehicle is characterized in that high voltage is electrified on two rails; two electric leads of a motor electrically contact the high voltage on the two rails through the wheels respectively; the connector consists of an upper bolt, a lower bolt, a connecting rod and an electromagnet; and a spherical lock which is clamped and enclasped by the connector is fixed on the front middle of a bumper of the motor vehicle. A motor on the trailer rotates at a high speed after being supplied with power, then the trailer drags the motor vehicle which is hung on the rear of the trailer and in the state of power cutoff to advance at a high speed along the rails to the destination; and an engine of the motor vehicle is not required to be started. The long-distance displacement system for the electrified towed motor vehicle has the advantages that the long-distance displacement system can reduce the fuel consumption and greatly save the oil, thereby saving the energy, reducing the air pollution and relieving the oil crisis.

The invention discloses a cellulose based beer stabilizer, and belongs to the field of food. The cellulose based beer stabilizer is prepared from the following components in parts by weight: 3-18 parts of microcrystalline cellulose, 4-12 parts of sodium carboxymethyl cellulose, 3-5 parts of an effervescing agent A component, 4-7.2 parts of an effervescing agent B component and 0.5-2 parts of a plasticizer. The preparation steps are as follows: (1) performing alkali treatment on microcrystalline cellulose; (2) preparing sodium carboxymethyl cellulose / effervescing agent A component / effervescing agent B component granules; (3) premixing the treated microcrystalline cellulose with the sodium carboxymethyl cellulose / effervescing agent A component / effervescing agent B component granules, and adding the plasticizer to press tablets. According to the invention, the adsorption and flocculation properties of the microcrystalline cellulose and the sodium carboxymethyl cellulose are comprehensively utilized, the prepared cellulose based beer stabilizer is a tablet and is capable of being quickly dispersed in water, the adding manner is simple, the energy consumption in the dissolution process is reduced, and the problems of time consumption, agglomeration, settlement and other problems in the dissolution or dispersion process of a common stabilizer are avoided as well.

The invention discloses a general airplane tandem hybrid power system. The system comprises a generator, a rotor engine connected with the generator and used for driving the generator to generate power, a driving motor used for providing driving force for propellers and a power battery used for providing electricity for the driving motor. By means of the system, each item of performance indicatorof a general airplane is effectively met, energy consumption is saved, the environmental pollution is reduced, and energy crisis is relieved.

The invention provides a composite gasoline fuel based on nano-coal and methane. The composite gasoline fuel comprises methane and an anti-knock additive and is characterized by further comprising nano-scale, and a material formula of the composite gasoline fuel comprises the following components in percentage by mass: 20-48 percent of nano-scale, 50-75 percent of methane gas or liquefied natural gas and 0.1-2 percent of anti-shock additive. The invention further provides a production process of the composite gasoline fuel based on the nano-coal and the methane. The composite gasoline fuel is prepared from the nano-scale and the methane through processing; the composite gasoline fuel is reasonable in production process and low in cost and can well substitute for fuels, such as gasoline for motor vehicles, and the substitutive advantage is remarkable; and meanwhile the environment pollution is reduced and the energy crisis can be mitigated.

The invention relates to a preparation method and application of magnetic cellulose microspheres with a core-shell structure. According to the preparation method,a Fe3O4 magnetic core is prepared by using a chemical coprecipitation method; magnetic cellulose modified by a silane coupling agent is preparedby using an in-situ compounding method; and the magnetic cellulose modified by a silane coupling agent is enabled to react with diethylenetriamine pentaacetic acid, so as to obtain carboxy-modified magnetic cellulose microspheres. An amino group is grafted ontothe surface of cellulose by usingthe silane coupling agent, chemical modification of carboxylation is implemented through an amidation reaction, the prepared core-shell structure with Fe3O4 as a magnetic core can not only achieve rapid separation and reuse under the action of an external magnetic field, but also increase the specific surface area of an adsorbent. The prepared microspheres are adopted to remove heavy metal ions in water, research shows that the adsorbent has a very good adsorption effect on Hg<2+> and Cr<6+> particularly, and the adsorption capacities are up to 5.98mmol / g and 6.97mmol / g, respectively. The preparation method is simple and is applicable to large-scale industrial production.

The invention discloses preparation of a (C5H5) Ru / TiO2 organic-inorganic hybrid photocatalyst, and an application of preparing methane solar fuel by performing photocatalytic reduction on carbon dioxide. According to the invention, a surface organometallic chemistry method is adopted, and dicyclopentadiene-based ruthenium is grafted to the surface of the titanium dioxide by adopting a surface grafting method to obtain a composite material having a similar semi-sandwich structure, wherein the mass percentage of ruthenium is 0.3-5.0%. Compared with dicyclopentadiene-based ruthenium-unmodified titanium dioxide, the (C5H5) Ru / TiO2 composite material prepared by adopting the method not only has relatively wide photoresponse range, but also photon-generated carriers can fast migrate and transmit as surface Ru-O-Ti keys are generated, and therefore, the photocatalytic efficiency of titanium dioxide in a carbon dioxide methanation process can be effectively improved. The method is simple and easy to operate, and has promotion significance on energy crisis mitigation and ecological environment improvement.

The invention belongs to the field of solar photovoltaic power generation technology application, and aims to provide a Cassegrain structure-based high-power solar concentrator array system. Due to a bionic structure of apertures of concentrators, the concentrators are seamlessly distributed in an array manner. The system comprises a cubic base and a plurality of Cassegrain structure-based solar concentrators of which the apertures are regularly hexagonal, wherein each Cassegrain structure-based solar concentrator comprises a regularly hexagonal parabolic concave surface reflector, an annular heat radiation sheet, a silica gel gasket, a fixed substrate, a solar battery, a light unifying column, a dual curved convex surface reflector and a planar glass cover board; and a plurality of the honeycomb-type Cassegrain structure-based solar concentrators can be spliced seamlessly. According to the system, green energy can be used fully, and fossil energy danger and ecological environment deterioration can be effectively relieved.

The invention discloses lightweight wood-plastic mixed granules containing straws and a production method thereof, and relates to the technical field of plastic raw material granules. After natural straws, cork powder, polypropylene and plastic aid are mixed, the mixture is extruded and granulated through double screws; the density of the formed granules can be 900kg / m<3>, and the raw materials or the wastes can be separated together with the polypropylene in a centrifugal separation system; and the mixed granules have low machining temperature, good mechanical strength and excellent machinability, and can be repeatedly machined and formed without changing the density. By the production method, the consumption of non-degradable petroleum-based plastic can be reduced, oil crisis is retarded, and an innocent treatment and a good purpose are provided for agricultural wastes; and the production method is favorable for saving resources and protecting the environment.

The invention belongs to the burning fuel technical field, particularly relating to a method for making biological diesel oil by seeds of Chinese soapberry. The making steps of the invention are as follows: the seeds of Chinese soapberry are separated, dried and crushed and put in a reaction kettle provided with a cutting and blending device and added with bridle chain alcohols and fatty acid methyl esters, and the mixture undergoes high speed cutting and stirring at the room temperature for 1 to 4 hours to form uniform suspension liquid, and the suspension liquid is added with alkalescent materials and undergoes the high speed stirring for 1 t0 4 hours; KOH or NaOH is dissolved in methyl alcohols to prepare the KOH or NaOH methanol solution with mass percentage concentration between 8 and 10 percent, which is used as catalyst; the suspension liquid is added with the catalyst and undergoes back flow reaction for 0.5 to 4 hours; after the reaction, reactants are cooled down to the temperature of 40 DEG C and then undergo pressure filtration to obtain separated filtrate, and filter cakes are used for other purposes; the separated filtrate undergoes standing separation to remove side products such as glycerin, etc. on the lower layer, and coarse products of the biological diesel oil are obtained; the coarse products of biological diesel oil undergo normal pressure distillation to recover excessive bridle chain alcohols and undergo molecular distillation to obtain the qualified biological diesel oil. The biological diesel oil made by the method has the advantages of high cetane number and low solidifying point, and is suitably used in the low temperature condition. The method of the invention has the advantages of simple production process, low cost and good economical efficiency of process, and has a good prospect for large-scale popularization and application.

The invention relates to an aerobic composting waste heat power generation system and a working method thereof, and belongs to the field of organic solid waste resource utilization. The system comprises a waste collection device, a main composting reaction chamber, a waste heat power generation device and a tail gas collection device, wherein a heat conduction cover is arranged at the top of the main composting reaction chamber, the upper space of the main composting reaction chamber is a waste reactor body, the lower space of the main composting reaction chamber is a leachate collection device, a filter screen is arranged between the upper space and the lower space, and the main composting reaction chamber is further connected with an aeration device; the bottom of the heat conduction cover is connected with the reactor body through a heat conduction rod; a waste heat power generation device is installed on the upper surface of the heat conduction cover and is formed by connecting a plurality of semiconductor thermoelectric power generation pieces in series, wherein the electric energy generated by the semiconductor thermoelectric power generation pieces is transmitted to an electricity storage and supply device. According to the invention, heat can be recovered from organic wastes while the organic wastes are treated, and the problem of secondary pollution caused by excessivewaste heat of traditional compost is solved.

The invention provides a coffee shell powder plastic and a production process thereof. The coffee shell powder plastic comprises raw materials of coffee shell powder, talcum powder, natural clay, a high-molecular polymer and a plastic additive at a weight part ratio of (20-35):(8-10):(4-6):(40-60):(4-5). The invention further provides a coffee cup. The coffee shell plastic provided by the invention is prepared by taking the coffee shell powder as a raw material, the agriculture waste coffee shells is subjected to harmless treatment, a novel coffee shell treatment method is provided, a conventional treatment method of incinerating the coffee shells is abandoned, environmental pollution caused by incineration is reduced, refuse reclamation of the coffee shells is achieved, and the economic values of the coffee shells are increased.

The invention relates to a process for making fuel ethanol by means of saccharine straw. The process comprises the following technological flows of fresh straw cleaning up, cleaning, ozone sterilization, chopping, scattering, pulping, (preserving), yeast adding, premixing, anaerobic fermentation, raw distillation, rectification and dewatering, etc., wherein the step of pulping is to crush fresh saccharine straw fiber structure into less than 40 meshes of fiber powder so as to ensure that the juice in straw is completely released. The process is based on slurry and makes a corresponding novel technological program for the storing, preserving, feeding, yeast mixing, fermentation and extraction of ethanol; meanwhile, the process selects a device and a device assembly corresponding to the technological program. Moreover, the process has simple and efficient method, and can increase ethanol output capacity at lower cost.

The invention provides walnut shell powder plastic and a preparation method of raw materials for the walnut shell powder plastic, relating to the field of plastic products. The walnut shell powder plastic is prepared from the following raw materials in parts by weight: 25 to 30 parts of walnut shell powder, 4 to 8 parts of talcum powder, 10 to 14 parts of diatomite, 40 to 55 parts of high-molecular polymer and 4 to 5 parts of plastic additive. The preparation method of the raw materials is characterized in that the walnut shell powder with the fineness of 300 to 350 meshes is mixed with the talcum powder, the diatomite, the high-molecular polymer and the plastic additive, and a mixture is extruded and granulated by a twin-screw mixing extruder, thereby forming the raw materials for preparing the walnut shell powder plastic. According to the walnut shell powder plastic and the preparation method provided by the invention, the use of non-degradable plastic can be reduced, a petroleum crisis is retarded, walnut shells as agricultural wastes are harmlessly treated, and the performance requirement and the application requirement of particular commodities or craft materials are met. Meanwhile, the walnut shell powder plastic provided by the invention can be used for processing products such as garbage cans or wastepaper baskets, and has good mechanical strength and excellent processing performance; the use of petroleum-based plastic can be reduced.

The invention relates to a cooked food packaging film and relates to the technical field of processing and production of a film. The cooked food packaging film is characterized by being prepared fromthe following materials in parts by weight: 14 to 20 parts of resin, 5 to 9 parts of calcium sulfate, 1 to 3 parts of polyhydroxyalkanoate, 4 to 9 parts of nano-silicon dioxide, 22 to 27 parts of hardened oil, 6 to 11 parts of p-toluidine, 9 to 13 parts of artemisia desterorum spreng gum, 60 to 68 parts of purple sweet potato starch, 7 to 12 parts of pullulan, 4 to 9 parts of sorbitol, 9 to 14 parts of an accelerant and 20 to 26 parts of biological aid. The method is reasonable and convenient in operation, the cooked food packaging film is easy to degrade, and damage to the environment is avoided.

The invention provides a novel low-viscosity bio-based epoxy resin composition and a carbon fiber composite material, and belongs to the field of epoxy resin compositions. The epoxy resin compositioncomprises the following components in parts by weight: 100 parts of bio-based epoxy resin and 1-70 parts of a curing agent, and the bio-based epoxy resin has a structure as shown in a formula (1). Theinvention also provides a carbon fiber composite material which comprises the following components in parts by weight: 15-30 parts of bio-based epoxy resin, 10-20 parts of a curing agent, 0.1-0.3 part of an accelerant and 25-50 parts of a carbon fiber material, and the bio-based epoxy resin has a structure as shown in a formula (1). The composition has excellent mechanical properties, and when the low-viscosity epoxy resin and the carbon fiber are compounded, the wettability of the low-viscosity epoxy resin and the carbon fiber is improved due to the fact that the low-viscosity epoxy resin and the carbon fiber have low enough viscosity, and the interface adhesiveness of the low-viscosity epoxy resin and the carbon fibers can be improved due to enough epoxy functional groups.

The invention discloses a method for preparing biomass briquetting fuel from sisal hemp residues. Sisal hemp residue powder, magnesium oxide, manganese ore slag, starch, cerous sulfate, sodium carboxymethylcellulose mucilage and epoxy asphalt with the weight ratio of 100:(8-12):(5-10):(10-15):(2-4):(10-15):(5-8) are adopted as raw materials, and the biomass briquetting fuel is prepared through the procedures of smashing, forming, drying and the like. The method has the advantages that the preparation process is simple, energy consumption is low, production efficiency is high, the forming rate is high, and cost is low, the prepared biomass fuel is low in density, high in heat value, low in ash content, not prone to looseness, good in moisture resistance, capable of being saved for a long time and suitable for industrial production, and internal gaps of the product are small.

The invention relates to a biomass fuel. The biomass fuel is characterized in that a proper amount of gutter oil is added into straw, and the mass ratio of the straw to the gutter oil is 10 to 15; the straw is wheat straw, soybean straw, paddy rice straw or cotton straw; the gutter oil is filtered and water in the gutter oil is removed. The preparation method comprises the following steps of 1, pretreating raw materials: drying and crushing the straw into 1cm to 2cm long; filtering the gutter oil and removing the moisture; 2, drying materials: uniformly mixing the straw and the gutter oil, and drying the mixture until the water content reaches 5 to 8 percent; 3, molding the material: conveying the material to a briquetting device for molding; 4, packaging and warehousing. The biomass fuel and the preparation method have the beneficial effects that gutter oil is added into the straw to prepare the biomass fuel, so that the combustion performance of the biomass fuel which is prepared only from the straw can be improved, the gutter oil is adequately utilized, the possibility that the gutter oil is used for cooking dishes can be avoided, the utilization value is increased, and the energy crisis can be further alleviated.