37 results about "CARBON DIOXIDE/OXYGEN" patented technology

The present invention relates to a Ni-based catalyst for preparing syngas and a tri-reforming reaction of methane using the catalyst, particularly to a Ni-based catalyst, where an active ingredient (a nickel) is impregnated in a zirconia support and the zirconia is doped with a yttrium and a metal selected among a lanthanum and an alkaline earth metal to distort the crystal lattice of the zirconia, to facilitate the transfer of oxygen ion and to increase the storage and supply of oxygen, thus inhibiting the carbon deposition on the active nickel metal and maintaining the activity of the catalyst. Particularly, if the catalyst herein is used for the tri-reforming reaction of methane where a mixture of carbon dioxide, oxygen and steam is used as an oxidant, the molar ratio of hydrogen and carbon monoxide (H2 / CO) in the syngas may be selectively controlled.

A system is configured to perform capnometry / capnography, and / or other compositional analysis on a non-invasively ventilated subject. As such, the system determines amounts of a molecular species of gas (e.g., carbon dioxide, oxygen, etc.) excreted by the subject on a per-breath basis. Determinations of amounts of the molecular species of gas excreted are adjusted to reflect amounts of the molecular species of gas leaked from the non-invasive interface used to communicate with the airway of the subject.

Embodiments of a process for discharging amine byproducts formed in an amine-based solvent are provided. The process comprises the steps of contacting the amine-based solvent with flue gas comprising carbon dioxide, oxygen, nitrogen, NOx, SOx, or mixtures thereof to form a carbon dioxide-laden amine-based solvent that contains the amine byproducts. Carbon dioxide is separated from the carbon dioxide-laden amine-based solvent to form a carbon dioxide-depleted amine-based solvent. The amine byproducts from the carbon dioxide-depleted amine-based solvent are fed to an algae source.

The invention discloses graphene provided with a polynitrogen coordination structure and a preparation method and application thereof. The graphene contains 1-5 atomic layers, contains elements such as carbon, oxygen, nitrogen and hydrogen, and meanwhile contains at least one ofmetallic elements of iron, cobalt and nickel; the graphene has a catalytic active site of a polynitrogen coordination transition metal, and the coordination number of the nitrogen to metal is between 4 and 5, the graphene has efficient and stable monoatomic metal catalytic active site, and the graphene has high electrocatalytic performance for carbon dioxide, oxygen and formaldehyde. The graphene has the characteristics of easy dispersibility, easy processing and easy functioning, and functions of electric conduction, heat dissipation, infrared ray electric heating releasing and electromagnetic shielding are easily achieved.

A linkage device combined with a carbon dioxide and rich-oxygen removing generator for a family, a pig shed and a vegetable shed also can be combined with a living room or an activity room of people. The air odor, harmful gas in the air, NOx gas, toxic gas and dust particle are removed by the ozone water, more importantly, the viruses and bacteria are killed, oxygen is resolved from the ozone, and the non-toxic, sterile, dustfree and clean air rich in carbon dioxide and oxygen is transported in the vegetable shed, therefore the plants grow quickly and the photosynthesis, respiration and metabolism are all strong by adopting the greenhouse simulated illumination, temperature, humidity, fertilizer component and amount suitable for optimum growth conditions of the plants with excellent air input, the carbon dioxide is consumed in the photosynthesis, the oxygen is increased, the air with residual carbon dioxide and rich oxygen is led from the vegetable shed and input to the carbon dioxide-removing, disinfecting and dust-removing ozone water and the oversaturated calcium oxide (calcium hydroxide) fluid, the dust-removing, disinfecting, carbon dioxide-removing and clean rich-oxygen air is transported to the animal shed for respiration of the animals, so as to lead the respiration and metabolism of the animals to be strong, the oxygen content in the blood to be high and immunity to be strong. The pig manure and urine are used as organic fertilizer for the plants and calcium bicarbonate is obtained in the carbon dioxide-removing process.

A burner and method for oxidizing solid fuels wherein the burner has a lance having one or more nozzle feeds and one or more nozzle outlets concentrically surrounded by a primary oxidant passage which is concentrically surrounded by a secondary oxidant passage wherein the primary and secondary oxidant passages communicate at their proximal ends with a gas supply, the lance having a distal and proximal end and the one or more nozzle feeds is in communication with a gas supply.

To refine a method for electric arc joining, in particular for M[etal] P[rotective] G[as] welding and / or for M[etal] P[rotective] G[as] soldering, of at least one object made of metal and / or at least one metal alloy under protective gas using at least one meltable electrode, at least one mixture made of argon, helium, and at least one active gas being supplied as the protective gas, in such a manner that arbitrary electric arc joining technologies, in particular M[etal] P[rotective] G[as] welding and / or M[etal] P[rotective] G[as] soldering, may be performed in parallel and / or in sequence using the supplied protective gas, it is suggested that the protective gas havehelium in a range from approximately 25 volume-percent (vol.-%) to approximately 30 vol.-%,carbon dioxide, oxygen, or a carbon dioxide-oxygen mixture in a range from approximately 0.5 vol.-% b to approximately 0.9 vol.-%, andargon in the remaining volume range.

The invention belongs to the field of dust proofing of gas sensing probes and discloses a dustproof device and a dustproof method for a sensing probe. The device comprises the sensing probe, a filter curtain, a shutter primary roller, a shutter secondary roller, a micromotor and a timing controller. Two ends of the filter curtain are connected with the shutter primary roller and a shutter secondary roller respectively, and an output of the timing controller is connected with the micromotor which is connected with the shutter primary roller. The method includes: mounting a dustproof device in the front of the sensing probe, controlling the shutter primary roller to rotate by the timing controller of the dustproof device to roll the filter curtain jammed by dust into the shutter primary roller, and updating the shutter from the cleaned filter curtain on the roller to the front of a gas inlet of the sensing probe to guarantee the environmental gas to enter the sensing probe without obstructions. The dustproof device and the dustproof method for the sensing probe have the advantages that the dustproof filter curtain of the probe can be replaced automatically, the dustproof problem of sensing probes for mine environmental gases such as gas, carbon dioxide and oxygen is solved, reliability in environmental safety monitoring is guaranteed, and the dustproof device and the dustproof method is suitable for dust on gas monitoring probes in other ground dust environments.

The invention discloses a casing processing preservation method. The method comprises the processes of washing, immersing, scraping, flushing, water filling examination, salting and storage; and in the storage process, casings are placed in a sealed container, an alkaline solution with the pH value of 11-13 is added into the container, a mixed gas is finally introduced, and the mixed gas comprises carbon dioxide, oxygen and nitrogen. The casings obviously inhibit bacteria causing casing corruption, comprising Pseudomonas pseudoacaligenes, Achromobacter sp, proteusbacillus vulgaris and the like in a carbon dioxide gas with the concentration of 20-25%, can also avoid the promotion of the growth of anaerobic bacteria comprising Clostridium botulinum, Bacillus acidi lactic and the like due to too much carbon dioxide, and cooperate with corresponding concentrations of nitrogen and oxygen to make the casings in suitable environment in order to inhibit deterioration and corruption, so storage freshness keeping is realized, thereby the preservation time is prolonged. The longest freshness keeping time is 20 months, and the casings have the characteristics of no oxidation, no heating or red phenomenon, and realization of the bacterial content reaching standards within the freshness keeping time.

The present invention provides a method for producing nanometer carbon and hydrogen. The method comprises: adopting a hydrocarbon as a raw material, carrying out catalysis cracking on the hydrocarbon at a temperature of 500-850 DEG C under a pressure of 0-1 MPa to obtain a nanometer carbon crude product and hydrogen, calcining the nanometer carbon crude product for 0.8-1.5 h at a temperature of 250-400 DEG C, refluxing for 2-5 h in concentrated hydrochloric acid, collecting the solid, and drying to obtain the pure nanometer carbon. With the catalyst and the method for producing nanometer carbon and hydrogen through hydrocarbon cracking, the amorphous carbon precursor or the by-product can be eliminated, and the raw materials containing carbon dioxide, oxygen, water and other gases can be adopted to perform production; and the raw material purity requirement is reduced, and the production cost is substantially reduced.

The invention discloses a method for recovering noble metal from a waste alumina carrier noble metal catalyst, and particularly relates to a method for recovering platinum from a high-carbon-content waste Pt / alpha-Al2O3 catalyst, which mainly comprises the steps of roasting, leaching, noble metal refining and the like. According to the method, sodium carbonate and sodium peroxide are directly added into the waste catalyst for roasting, alpha-Al2O3 is converted into soluble sodium metaaluminate, meanwhile, released carbon dioxide and oxygen are decomposed to promote effective removal of organic matters and carbon deposits, and carrier component transition and removal of the organic matters and carbon are achieved in a same system. In order to avoid hydrolytic precipitation of sodium metaaluminate, a roasted product is leached by adopting a dilute sodium hydroxide solution, the noble metal is enriched in leached residues, and the noble metal is obtained through refining and purification. The method is simple in technological process, easy to implement on a large scale, high in efficiency and low in energy consumption, and the recovery rate of the noble metal is 99% or above.

The invention relates to the technical field of coal mine material testing, and particularly discloses an anti-re-alkali performance testing method of a spraying material for a coal mine roadway, which comprises the following steps: 1, spraying the uniformly stirred spraying material on the surface of concrete to solidify to obtain a sample, weighing the sample, and putting the sample into a testing device; and 2, introducing a mixed gas of carbon dioxide, oxygen and water into the testing device, controlling the flow rate of the gas flow to be 80-200ml / min, controlling the testing time to be30-100 days, and weighing the sample after the testing is finished. According to the testing method, the temperature and the mixed gas ratio in the test are adjusted; the environment conditions of different depth positions of the coal mine vertical shaft can be effectively simulated, so that the anti-alkali-efflorescence performance results of the spray material in different environments are obtained, the component proportion of the spray material is better adjusted according to the results, and the spray material with the most excellent anti-alkali-efflorescence performance in the environmentis obtained.

The invention relates to a lignin-based hydrogen bond organic framework nano-material and a preparation method and application thereof, lignin is used as a basic unit to form a lignin-based polyarylether polymer containing amide groups through arylether bond connection, and a lignin-based hydrogen bond organic framework is constructed by using hydrogen bond interaction between amide groups as a main body. The lignin-based hydrogen bond organic framework nano material synthesized by a solvothermal method has relatively high specific surface area and crystallinity. The lignin-based hydrogen bond organic framework nano material is added into polyacrylonitrile to prepare the polyacrylonitrile film, and the polyacrylonitrile film is used for food packaging, has good oxidation resistance, antibacterial activity and ultraviolet shielding function, also has high carbon dioxide / oxygen selective transmittance, proper water vapor transmittance and the like, and has good fresh-keeping effect on fruits and vegetables.

The invention discloses a concrete surface carbonization-resistant nano paint which comprises a component A and a component B. The component A comprises the following ingredients in parts by weight: 50-60 parts of bisphenol A resin, 20-30 parts of dispersing agent and 20-30 parts of nano silicon dioxide. The component B comprises the following ingredients in parts by weight: 10-12 parts of polyamine curing agent, 25-30 parts of water, 12-15 parts of precipitated barium sulfate, 15-18 parts of wax powder, 18-20 parts of titanium white, 2-5 parts of defoaming agent and 2-5 parts of wetting agent. The invention also discloses a technique for preparing the concrete surface carbonization-resistant nano paint. The nano paint can be widely used on the surfaces of buildings, bridges, tunnels, dams, breast walls and other concrete structures. A compact and hard protective layer is formed on the concrete surface to perform favorable isolation functions on carbon dioxide, oxygen and other components in air, thereby achieving the effect of concrete surface carbonization resistance. Meanwhile, the paint has favorable weather resistance and pollution resistance.

The title of the invention is: Plasma carbon dioxide oxygen-generator compensated by wind power and powered by solar energy. The oxygen-generator is mainly used for processing greenhouse gas carbon dioxide fast, returning oxygen to the atmosphere, and controlling the climatic change effectively. The plasma carbon dioxide oxygen-generator provides a jet charging design skill which solves the problem of incapability of continuous operations caused by serious carbon deposit produced on decomposing the plasma carbon dioxide to generate oxygen, and also is supported by a combined power supply system which employs wind-driven power generation, solar energy photovoltaic power generation and city power in a switchable manner.

The invention relates to the technical field of high-barrier packaging, in particular to a quality guarantee state indicator and a preparation method thereof. The quality guarantee state indicator comprises a first permeable membrane, a composite indication layer, a porous substrate, an adhesive layer, a protective membrane and a pressure-sensitive adhesive layer which are in contact in sequence,the composite indication layer comprises the following components of an adhesive and an indicator, and the indicator comprises one or more of a carbon dioxide indicator, an oxygen indicator and a water vapor indicator; the adhesive in the composite indication layer comprises one or more of a polyester adhesive and a polyurethane adhesive, and the porous substrate is made of expanded polytetrafluoroethylene. The protective film and the pressure-sensitive adhesive layer can be replaced by a second transparent film. When the carbon dioxide, oxygen and water vapor exist in the environment where the quality guarantee state indicator is located, the carbon dioxide, the oxygen and the water vapor can reach the composite indication layer through the first permeable membrane, and the composite indication layer effectively indicates the entering situation of the carbon dioxide, the oxygen and the water vapor through color change.

Embodiments of a process for discharging amine byproducts formed in an amine-based solvent are provided. The process comprises the steps of contacting the amine-based solvent with flue gas comprising carbon dioxide, oxygen, nitrogen, NOx, SOx, or mixtures thereof to form a carbon dioxide-laden amine-based solvent that contains the amine byproducts. Carbon dioxide is separated from the carbon dioxide-laden amine-based solvent to form a carbon dioxide-depleted amine-based solvent. The amine byproducts from the carbon dioxide-depleted amine-based solvent are fed to an algae source.

The invention discloses a breathable membrane for culturing a high-yield varicella virus and a culture method of the high-yield varicella virus. The breathable membrane is applied to a culture room for culturing the high-yield varicella virus. The breathable membrane sequentially comprises a breathable layer and a cell adhesion layer; the breathable layer is a polydimethylsiloxane composite membrane; and the cell adhesion layer is a polycaprolactone composite membrane. The breathable membrane and the culture method have the beneficial effects that (1) the polydimethylsiloxane composite membrane capable of enhancing oxygen permeability is prepared through regulation and control to provide oxygen for culture of varicella viruses, and the problem of gas exchange of carbon dioxide and oxygen is effectively solved in cooperation with a carbon dioxide incubator; (2) the polycaprolactone composite membrane capable of enhancing cell adhesion is prepared through regulation and control to enhance the adhesion and diffusion of the varicella viruses; and (3) the polydimethylsiloxane composite membrane and the polycaprolactone composite membrane are compounded by using diluted polydimethylsiloxane to form a breathable membrane with both breathability and cell adhesion, and the proliferation and differentiation of the varicella viruses are synergistically enhanced to realize high-yield culture.

The invention relates to a canned tuna production process and equipment thereof. The production process comprises the following steps: 1, checking and accepting raw materials; 2, unfreezing; 3, steaming and boiling; 4, finishing; 5, filling; 6, sterilizing and cooling; and 7, packaging to obtain a finished product. An unfreezing mode of the canned tuna making process is divided into two steps of water unfreezing and gas pressurizing unfreezing, and comprises the following steps: completely immersing frozen tuna in ice salt water; putting the tuna unfrozen by water into a vacuum chamber to be pressurized and unfrozen; injecting a proper amount of oxygen and carbon dioxide into the vacuum chamber; and after oxygen and carbon dioxide are pressurized, generating heat to quickly thaw tunas, wherein unfreezing efficiency is high. The unfreezing mode can quickly and efficiently thaw the tunas, the nutritional value of the prepared cans can be increased, and meanwhile the whole unfreezing process is simple in structure, easy to operate, beneficial to popularization and use and high in practicability.

The invention relates to a biological detection method based on gas isotope detection. The method comprises the following steps: selecting a sample plant; cultivating the sample plant to a detection platform; introducing a mixed gas of carbon dioxide with carbon isotopes, oxygen and nitrogen into the detection platform; waiting for photosynthesis of the sample plant; recording detection time; extracting part of residual air in the detection platform as sample air; compressing the sample air; detecting the content of carbon dioxide in the sample air; measuring the content of carbon dioxide withcarbon isotopes; adjusting the environment condition; waiting for photosynthesis of the sample plant; extracting part of residual air in the detection platform as sample air; compressing the sample air; detecting the content of carbon dioxide in the sample air; measuring the content of carbon dioxide with carbon isotopes on the basis of carbon dioxide; and comparing the content of the carbon dioxide with the carbon isotope and recording the environment corresponding to the measurement result with less content.

The invention discloses a microbial fuel cell and algae photosynthetic organism coupling substance conversion test device, and the device comprises a reactor internal circulation module, a sewage supply module communicated with the reactor internal circulation module, a carbon dioxide supply module, a gas pressure control sampling module, an algae / water quality sampling detection module, and an electric control module which is used for controlling the operation of the reactor internal circulation module. According to the advanced micro-ecological substance conversion and regeneration test device developed by the invention, test verification of core functions such as human excrement biological treatment / substance conversion, algae sewage treatment, carbon dioxide oxygen conversion / biomass regeneration and the like is carried out, and an early-stage research basis is provided for in-orbit test verification of a micro-ecological substance conversion and regeneration technology; and a modular design idea is adopted, and components of the same type and the same function are arranged together, so that assembly and maintenance are facilitated.

The invention relates to a self-inflating sealing ring, a cylinder section clamping tool and an inner wall protection and local oxidation method, and belongs to the technical field of aerospace large cylinder section structures. The problems that in the prior art, a large cylinder section uses a conventional sealing ring or a large rubber plug and is very difficult to install or cannot be disassembled after being oxidized, a large-size cavity is formed in the large-size cylinder section, and normal oxidation cannot be achieved are solved. The self-inflating sealing ring comprises a sealing ring shell and filler, and the sealing ring shell is provided with a feeding port; the sealing ring shell is filled with the filler, the filler is a chemical reactant which generates gas through a chemical reaction, and the generated gas achieves inflation and expansion of the sealing ring shell; and the gas is one or more of carbon dioxide and oxygen. Local oxidation under the protection of the inner wall of the aerospace large cylinder section is achieved.

A device is described for facilitating the preparation of therapeutic foam e.g. for the treatment of varicose veins. A pressurised vial contains a sclerosant liquid, e.g., polidocanol solution, and a sterile gas which is readily absorbed by the body, e.g., carbon dioxide, oxygen or a mixture of these gases. The vial is provided either with a specialised stopper / seal into which a syringe nozzle may be inserted or alternatively a septum seal which may be penetrated by a hypodermic needle. The quantities of gas and liquid and the pressure in the vial are pre-set so that, on connection of a syringe to the vial, a predetermined volume of both gas and liquid is transferred to the syringe, with the intention that the syringe is then used to make a foam by known means. The use of the vial ensures that the ratio of gas to liquid in the foam is standardised, and also provides a convenient way of packaging the gas and liquid and of filling the syringe in a sterile manner.

The invention relates to the field of food fresh-keeping materials, and discloses a plastic fresh-keeping film for packaging kiwi fruits and a preparation method. The preparation method comprises thefollowing steps of (1) using an ethyl alcohol solution to wash polymethyl methacrylate microspheres, putting into a mixed solution of hydrogen peroxide and sulfuric acid, heating, adding into a polyvinylidene chloride emulsion, and stirring, so as to obtain a composite emulsion, wherein the raw materials comprise 10 to 20% of polymethyl methacrylate microspheres, 25 to 30% of polyvinylidene chloride, 1 to 2% of emulsifier, and 48 to 64% of water; (2) performing corona treatment on a nonwoven cloth, uniformly coating the composite emulsion, and drying; (3) using a laser device to radiate the coating layer of the non-woven cloth, so as to obtain the plastic fresh-keeping film. Compared with the traditional fresh-keeping film, the prepared plastic fresh-keeping film has the advantages that the permeation rate of carbon dioxide / oxygen is high, the concentration of carbon dioxide is low, the low-oxygen environment is well maintained, the atmosphere control effect is obvious, and the warranty period of the kiwi fruit is effectively prolonged; the preparation process is simple, the energy consumption is low, the cost is low, and the application prospect is broad.

The invention relates to the field of soilless culture, in particular to a soilless culture system and a soilless culture method. The soilless culture method comprises the following steps that S1, plant roots are inserted into cylinders, and the upper portions of plant rhizomes are pressed and fixed through two rubber bands; S2, air spraying holes are used for introducing oxygen or carbon dioxideinto a hollow ring, and the oxygen or the carbon dioxide is blown to the plants from the multiple air spraying holes, so that the plants absorb the oxygen or the carbon dioxide; S3, the two cylindersare driven to rotate with the axis of a fixed shaft as the axis, and then the two cylinders are driven to continuously shake in water in different inclination directions; and S4, arc-shaped pieces moving front and back are arranged at the front side and the rear side of each plant, and the two arc-shaped pieces move front and back to further enable a nutrient solution to impact root hairs of the plants. The soilless culture system comprises the hollow ring, the rubber bands, the cylinders, a conical spring and the liquid inlet holes, the plurality of liquid inlet holes are formed in the cylinders, and the lower side of the hollow ring is fixedly connected with the conical spring.

The invention relates to a device (10) for dispensing oxygen (30) under pressure. The device comprises a canister (12) filled with activated carbon (14) and oxygen (30) at a pressure of between 4 and 20 barg, when measured at room temperature. The canister is sealed with a valve assembly (18) allowing release of oxygen from the canister on actuation of the valve assembly. To ensure the activated carbon does not react with the oxygen generating carbon monoxide the device further comprises a catalyst (16) that prevents or significantly reduces the presence of carbon monoxide. In a further aspect there is a device (10) for dispensing a gas (30) under pressure which device comprises a canister (12) with a volume of 1 l or less filled with activated carbon (14) to adsorb the gas under a pressure of between 4 and 20 barg when measured at room temperature. The canister (12) is sealed with a valve assembly (18) crimped to the canister over a seal allowing release of the gas (30) from the canister on actuation of the valve assembly, wherein the gas is carbon dioxide, oxygen, nitrogen or air, and the canister is a steel canister. In a particularly favoured embodiment the device is filled with carbon dioxide and includes a high volume discharge valve making it useful as a pet behaviour correction device.

The invention belongs to the technical field of molten carbonate fuel cell electrolyte, and relates to a method and device for supplementing molten carbonate fuel cell electrolyte. The method comprises the following steps of: heating alkali metal halide to a first temperature to form steam; and heating carbon dioxide and oxygen to a second temperature, and introducing the carbon dioxide, the oxygen and the steam into the cathode chamber of the molten carbonate fuel cell at the same time, so as to make the alkali metal halide react with the carbon dioxide and oxygen to generate carbonate, thereby completing electrolyte supplementing. According to the method, firstly, the alkali metal halide is gasified, then the preheated carbon dioxide and oxygen are introduced, the lithium carbonate is generated in the cathode chamber of the molten carbonate fuel cell by utilizing the chemical reaction, an electrolyte supplementing effect is realized; and the method is applied for the first time in the field. The problems of long time consumption and low efficiency caused by cooling of the fuel cell in a traditional method are avoided. The added electrolyte can solve the problem of electrolyte deficiency caused by long-period operation of the fuel cell.

The invention discloses a food packaging bag with a fresh-keeping function and a preparation method thereof, and relates to the technical field of packaging bag preparation. The food packaging bag is prepared from the following raw materials in parts by mass: 60-80 parts of polyvinylidene chloride, 2-4 parts of a coupling agent, 1-2 parts of epoxy linseed oil, 10-20 parts of filler, 5-10 parts of mugwort powder and 10-20 parts of a plant extraction bacteriostatic agent. The food packaging bag disclosed by the invention has high mechanical strength, and the food packaging bag has excellent insect-resistant, bactericidal and bacteriostatic effects by adding mugwort, the plant extraction bacteriostatic agent and the like. Active argil is added as a filler in the PVDC preparation process, the packaging bag likes a micro-filter sieve while the certain barrier property of the packaging bag is guaranteed, gas and moisture generated in the storage process of food, especially fruits and vegetables, can penetrate through the packaging bag to a certain degree, and carbon dioxide, oxygen and water inside and outside the bag can be exchanged, so that bad gases such as ammonia gas in the bag can be absorbed.