192results about How to "Fast mass transfer" patented technology

The invention provides an apparatus for comminuting coal or other fuel solids in a shear field, and for optionally coating the solids with catalysts for combustion, liquefaction, and or gasification during the milling process. The apparatus further provides for control of water content in the solids may be controlled before, during and after the milling in order to obtain micronized solids with fine hydration layers. The output fuel solids of the apparatus can burn at low temperatures, avoiding emissions of nitrogen oxides, and they also have improved properties for surfactant-free suspension in either water or oil media, as well as for liquefaction and gasification.

In a catalytic treatment process, mercaptans in sour hydrocarbon are oxidized to disulfide oils using an aqueous treatment solution containing a chelated polyvalent metal catalyst, alkali metal hydroxide, and the alkali metal salt of at least one alcohol in a non-dispersive mixing apparatus wherein an upgraded hydrocarbon containing the disulfide oils is produced.

The invention discloses a semi-aromatic polyamide PA11T and a synthetic method thereof and belongs to the technical field of high polymer material synthesis. The structure formula is shown in the description, wherein n is 10-200. The 1, 11-undecanedioic diamide and the terephthalic acid are taken as the raw materials and the synthetic process is finished in a drum type reaction kettle through a one-pot method. By adopting the method, the reaction devices and the synthetic steps are few, the reaction time is short, the polymerization temperature is low, and the method is pollution-free and suitable for the large-scale industrial production. The PA11T produced by the process is excellent in performance and has a good market prospect in the industries such as the electric products and the automobiles.

The invention relates to a method and equipment for cross backflow two-stage double-expansion granular sludge treatment of coking wastewater. The method comprises the following steps: introducing the coking wastewater to a first-stage double-expansion granular sludge reactor and degrading the coking wastewater to produce first-stage treated water; delivering a part of the first-stage treated water to a first-stage aeration backflow column and the other part of the first-stage treated water to a second-stage reactor directly; aerating the treated water which enters the first-stage aeration backflow column, allowing a part of the aerated water and return water of second-stage treatment mixed directly and flow to the first-stage reactor, and making the part of the aerated water and the aerated water of the second-stage treatment mixed and flow into the second-stage reactor; degrading the treated water which enters the second-stage reactor to produce water of the second-stage treatment, directly discharging a part of the water of the second-stage treatment, and making the other part of water of the second-stage treatment flow into a second-stage aeration backflow column; and aerating other part of the water of the second-stage treated treatment, and returning part of the aerated water of the second-stage treatment to the second-stage reactor, and returning the other part of the aerated water of the second-stage treatment to the first-stage reactor as direct return water of the second-stage treatment. The treatment method and equipment can realize the simultaneous efficient removal of COD and ammonia nitrogen from the coking wastewater.

The invention discloses a preparation method for a molecular imprinting film, and specifically relates to an in situ polymerization method on a thin film substrate. According to the preparation method, acrylamide or acrylic acid and the like is adopted as a polymeric monomer, ethylene glycol dimethacrylate or methylene bisacrylamide and the like is adopted as a cross-linking agent, an in situ polymerization treatment is performed on the thin film substrate in presence of template molecules, the template molecules are removed to obtain the target molecular imprinting film. The prepared molecular imprinting film of the present invention has advantages of high selectivity, large adsorption capacity, good stability, and the like, can be used for chemiluminescence sensors, and has good application potential.

The present invention relates generally to sulfated micelle compositions, methods of manufacture, and applications thereof. In particular, the micelles of the present invention provide an efficient enantiomeric separation and detection techniques for use in capillary electrophoresis and capillary electrophoresis with mass spectrometry.

The invention relates to a method for three-dimensionally printing a honeycomb-type solid oxide fuel cell with a three-dimensional channel, and belongs to the technical field of solid oxide fuel cells. According to the method, positive pole ceramic powder or negative pole ceramic powder serves as a raw material, a structure is designed through three-dimensional mapping software, outputting is carried out through a ceramic three-dimensional printer, and a green body of a honeycomb-type positive pole support body or a negative pole support body with a three-dimensional channel structure is printed and prepared with a one-step method; after the green body is sintered, the positive pole support body or the negative pole support body is obtained; an electrolyte layer and a negative pole layer are sequentially deposited on the positive pole support body to form a positive-pole honeycomb-type solid oxide fuel cell with an emulsion impregnation method; an electrolyte layer and a positive pole layer are sequentially deposited on the negative pole support body to form a negative-pole honeycomb-type solid oxide fuel cell with an emulsion impregnation method. According to the method, preparing is efficient, cost is saved, the mass transfer rate is greatly increased, the automation degree is high, and the batch is stable.

The invention relates to a Mn2P2O7 anode material of a core-shell structured lithium ion battery and a preparation method thereof. The Mn2P2O7 is prepared according to the following steps of: (1) dissolving an organic manganese source and a phosphorus source in deionized water to obtain a mixed solution; (2) adjusting a pH value to be 3 to 8; (3) placing the solution in a water bath at 60 to 90 DEG C, and stirring the solution for 10 to 30 hours to form uniform gel; (4) drying the gel for 4 to 15 hours at 60 to 110 DEG C to obtain a Mn2P2O7 precursor; and (5) placing the Mn2P2O7 precursor in a non-oxidizing atmosphere, sintering the Mn2P2O7 precursor at 350 to 700 DEG C for 4 to 14 hours, and cooling the product to the room temperature, thereby obtaining the Mn2P2O7 anode material of the core-shell structured lithium ion battery. The nanometer rod of the Mn2P2O7 is of a core-shell structure and has high specific area, thereby being favorable for ion transmission and infiltration of an electrolyte to an electrode material; and moreover, the conductivity of the nanometer rod is greatly improved due to uniformly-coated amorphous carbon, and the electrochemical performance of the material is excellent.

The invention discloses a short-hole-channel ordered mesoporous silica-sulfur-indium-zinc composite photocatalyst as well as a preparation method and application thereof. The short-hole-channel ordered mesoporous silica-sulfur-indium-zinc composite photocatalyst is prepared through the following steps of mixing ethyl orthosilicate with ZrOCl2, zinc salt, indium salt and a reducing agent so as to obtain a mixture, in the presence of a surfactant, sequentially performing sol-gel treatment, hydrothermal treatment and alcohol ultrasonic treatment, performing sucking filtration, performing cleaning and performing drying. According to the photocatalyst, the integration of adsorption and photocatalytic oxidation is realized, the photocatalyst has high adsorption properties and high photocatalytic activity on volatile organic compounds (VOCs), and hydroxyl radicals produced on the surface of a catalyst can effectively degrade the VOCs adsorbed and enriched by materials in an in-situ manner, so that the reaction rate and the reaction efficiency of photocatalytic degradation on the VOCs can be substantially improved, the photocatalyst can be used as an adsorbent or the photocatalyst for organic contaminants in the field of environmental protection, and the photocatalyst has wide environmental protection application potential.

The invention provides a liquefaction process using comminuted fuel solids from a steam-driven shear field, with controlled water content and optionally coated with a catalyst. The method allows fuel solids to be liquefied efficiently during comminution or when they are supplied in the form of a slurry or as free-standing solids.

The present invention relates to a process of isolating one or more target compounds, wherein the clarification of feed is performed using partitioning in a multiphase system comprising a first polymer, which is a synthetic poly(acid), a second synthetic polymer, which is a poly(ether), and at least one salt, which clarification is followed by at least one step of affinity chromatography. The molecular weight of the poly(acid) may be in the range of 1000-100,000 Da. The target compound is preferably a biomolecule, such as a monoclonal antibody.

A method for removing boron and phosphorus in silicon at low temperature belongs to the technical field of the production of high purity silicon and the method is to recrystallize and purify silicon in tin-based alloy liquid. The method comprises the following steps: crushing industrial silicon, pickling, pretreating, heating with tin-based alloy for complete melt-blending, cooling to ensure that silicon is recrystallized and precipitated, fast ingotting crystalline silicon, crushing and pickling to obtain the high purity silicon with low boron and phosphorus. In the method of the invention, the recrystallization temperature is 300-1400 DEG C and the silicon loss is less than 5%. Compared with the current metallurgical method for purifying silicon, the impurities of boron and phosphorus can be removed fast and simultaneously and the operating temperature is reduced by 600-1700 DEG C.

The invention relates to a three-dimensional printing method for a honeycomb type electric catalyzing membrane reactor with a three-dimensional channel, and belongs to the technical field of solid oxide electrolytic tanks. The method is characterized in that the three-dimensional printing forming technology of a ceramic material is utilized, an electrolytic ceramic powder is used as a raw material, a three-dimensional drawing software is adopted, and a ceramic three-dimensional printer can perform output, so as to print and form a green body of the honeycomb type electric catalyzing membrane reactor with the three-dimensional channel by one step; the green body is subjected to sintering treatment to obtain an electrolyte supporting body; a cathode and an anode or the anode and the cathode are correspondingly deposited on the upper inner side and the upper outer side of the electrolyte supporting body by the emulsion impregnation method, thus forming the honeycomb type electric catalyzing membrane reactor with the three-dimensional channel. The method is efficient in preparation, can save the cost and greatly improve the mass transfer rate, and is high in automation degree, and stable in batch.

The invention discloses a morphological control method for functional hydrothermal carbon. The morphological control method includes the steps that after glucose or cane sugar is mixed with a sulfuric acid solution with the mass percent of 40% in the solid-liquid mass ratio of 1:13, morphological control agents are added, wherein the mass ratio of the morphological control agents to the glucose or the cane sugar is 1:25 to 7:25; the mixture is heated to 95 DEG C, dehydration carbonization is carried out for 6 h, washing and filtering are carried out, drying is carried out for 12 h under the condition of 120 DEG C, and the regular-morphology hydrothermal carbon is obtained. The morphological control method has the advantages that the problems that under the low temperature condition, morphology is irregular, and particle size distribution is wide are solved. Porous carbon prepared from the hydrothermal carbon with a phosphoric acid activating method shows quite good electrochemical performance and is high in mass transferring speed and long in service life, and the specific capacitance value ranges from 160 F/g to 210 F/g. The product shows the quite good electrochemical performance through further pore regulating and controlling, and has great development potential in the aspects of electrode materials and supercapacitors.

The invention relates to a technique for synthesizing polyformaldehyde dimethyl ether, particularly a technique for synthesizing polyformaldehyde dimethyl ether from methanol, methylal and polyformaldehyde. The technique is divided into a reaction region and a rectification region. The process of the reaction region comprises the following steps: vaporizing methylal, mixing, sending into a regular-structure fixed-bed reactor (7), and reacting to generate a mixture containing the target product polyformaldehyde dimethyl ether. The rectification region sequentially comprises three separation rectification towers connected in series and a product storage tank (28). The three separation rectification towers connected in series are sequentially a first separation rectification tower (17), a second separation rectification tower (22) and a third separation rectification tower (25). The technique is characterized in that by adopting the regular-structure catalyst and reactor, the catalyst consumption is greatly saved, the catalyst and reactor are simple for amplification and flexible for operation, and the technique has lower methylal yield and higher polymer product selectivity on the premise of keeping higher reaction activity and product selectivity.

The invention discloses an enzymatic crosslinking chitosan/polyethyleneimine grafted magnetic gelatin material and a preparing method and application thereof, and belongs to the technical field of environment. The preparing method includes the steps that a transglutaminase substrate is used for selectively preparing magnetic gelatin particles, iron ion leakage is effectively prevented by an enzymatic crosslinking gelatin shell, as only gelatin glutamy/lysine crosslinking is carried out, and while mechanical stability is maintained, the magnetic gelatin particles reserve a great number of amino groups to chelate metal ions. The surface of the magnetic gelatin material is modified by a polyethyleneimine/chitosan copolymer, the number of amino groups is increased exponentially, and the enzymatic crosslinking chitosan/polyethyleneimine grafted magnetic gelatin material having adsorption capacity and mechanochemistry stability is obtained. The gelatin material has the advantages of being fast in magnetic separation, large in adsorption capacity, fast in mass transfer, green, nontoxic, low in cost and capable of effectively removing heavy metal ions in water.

The invention provides a microfluidic-based nucleic acid hybridization reaction platform and a microfluidic-based nucleic acid hybridization analysis method. The platform consists of an upper layer and a lower layer, wherein the upper layer is a microfluidic chip controlled by a micropump and a microvalve; the lower layer is a substrate for fixing an oligonucleotide probe; and a fluid channel or a chamber is formed by the upper layer and the lower layer through irreversible sealing. The hybridization analysis method comprises a step of promoting liquid flow to automatically flow to and fro in a hybridization channel by taking positive pressure and negative pressure which are controlled by a program as a driving force, namely filling a sample into a microchannel by a capillary force or negative pressure after the sample enters a waste liquid chamber, and promoting liquid to flow to and fro in the microchannel by controlling the pushing and bounce (positive pressure and negative pressure) of two valve seats at both ends of the liquid channel. The microfluidic-based nucleic acid hybridization reaction platform and the microfluidic-based nucleic acid hybridization analysis method have the advantages that: mass transfer of materials is quick, hybridization time is short, the sample consumption is low, a hybridization signal of the sample can be detected in real time, the integration is easy to realize, a plurality of samples can be subjected to parallel analysis synchronously and the like.