Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
327 results about "Renewable biomass" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Biomass energy is a relatively clean, renewable energy source involving the use of organic matter which collected energy from the Sun and converted it into chemical energy when it was alive. It is a renewable source as this matter is continually growing and absorbing the Sun’s energy, particularly where biomass crops are farmed.
Method for producing bio-fuel that integrates heat from carbon-carbon bond-forming reactions to drive biomass gasification reactions
ActiveUS20070225383A1Improve thermal efficiencyImprove economyCatalytic crackingBiofuelsSyngasBiodiesel
A low-temperature catalytic process for converting biomass (preferably glycerol recovered from the fabrication of bio-diesel) to synthesis gas (i.e., H2 / CO gas mixture) in an endothermic gasification reaction is described. The synthesis gas is used in exothermic carbon-carbon bond-forming reactions, such as Fischer-Tropsch, methanol, or dimethylether syntheses. The heat from the exothermic carbon-carbon bond-forming reaction is integrated with the endothermic gasification reaction, thus providing an energy-efficient route for producing fuels and chemicals from renewable biomass resources.
Owner:VIRENT +1
Method for preparing aromatic hydrocarbon and cyclopentenone from biomass derivative gamma-valerolactone by catalytic conversion
InactiveCN104230615AGood dehydrogenation performanceInhibition of partial polymerizationHydrocarbonsPreparation from heterocyclic compoundsLiquid productReaction temperature
The invention relates to a method for preparing aromatic hydrocarbon and cyclopentenone from biomass derivative gamma-valerolactone by catalytic conversion, which comprises the following steps: (1) using biomass derivative gamma-valerolactone as a raw material, which is prepared by carrying out hydrogenation reaction on levulinic acid; (2) introducing one or more transition metals into a zeolite molecular sieve, and preparing a reaction catalyst at the reaction temperature of 350-550 DEG C by using a fixed bed or fluid bed as a reactor; (3) in an inert or reducing atmosphere, carrying out contact reaction on the raw material gamma-valerolactone and catalyst under the reaction pressure of 0-10 MPa; and (4) after the pyrolysis gas is condensed, collecting the liquid product in the condensation receiver, thereby obtaining the aromatic hydrocarbon product (of benzene, toluene and xylene) and the cyclopentenone product. By using the renewable biomass derivative gamma-valerolactone as the raw material, the method has the advantage of milder reaction conditions, and the catalyst is simple to prepare and easy to recover and reuse.
Owner:湖南清欣绿色环保有限公司
Energy efficient system and process for the continuous production of fuels and energy from syngas
InactiveUS20100175320A1Maximizes carbon conversionMaximize efficiencyEngine fuctionsBiofuelsChilled waterLiquid fuel
A system and apparatus is provided that maximizes mass and energy conversion efficiencies in an integrated thermochemical process for the conversion of fossil fuel or renewable biomass to synthesis gas. The system combines gasification, catalytic conversion of gas to liquid, electricity generation, steam and chilled water generation with a system controller to maximize the conversion efficiency from syngas to merchantable products over the efficiency of syngas alone burned as a fuel. A clean synthesis gas stream is introduced into a catalytic reactor that utilizes specially formulated catalysts to generate liquid fuel from CO and H2 while concentrating CH4 and other combustible, but non-reactive gases in the syngas product stream. The methane rich stream is introduced into an engine for the production of electricity and heat while the unreacted CO and H2 can be recycled to produce additional liquid fuel. Excess heat can be used for other co-located processes and facilities.
Owner:GREYROCK ENERGY INC
Process and apparatus for generating power, producing fertilizer, and sequestering, carbon dioxide using renewable biomass
ActiveUS7055325B2Improve economyImprove environmental impactCalcareous fertilisersSteam useCombustion chamberElectric power
A process and apparatus are described for generating electrical energy using grains or other renewable biomass as the fuel, and for producing fertilizer to grow subsequent crops. In the process, a biomass material is incinerated in a firebox of a boiler to power a first turbine to create electricity. An excess air flow is introduced into the firebox to increase NOx production. The oxidation area of the boiler is operated at a temperature exceeding about 2,000° F., and the flue gases are maintained in the high temperature environment for an increased residence time to increase NOx production. The flyash from the incinerated biomass is filtered from the flue gases exhausted from the boiler. The NOx is removed from the filtered flue gases and used to produce a nitrogen fertilizer. The nitrogen fertilizer is blended with the flyash to form a balanced fertilizer product which allows sustainable production of the biomass material.
Owner:WOLKEN MYRON B
Microwave Produced Biochar from Beneficiated Organic-Carbon-Containing Feedstock
InactiveUS20150361369A1Reduces adverse corrosive wearReduces maintenance cleaningBiofuelsSolid fuelsMicrowaveRenewable biomass
A processed biochar composition made with an oxygen-starved microwave sub-system from a processed organic-carbon-containing feedstock made with a beneficiation sub-system is described. Renewable biomass feedstock passed through a beneficiation sub-system to reduce water content to below at least 20 wt % and water-soluble salt reduction of at least 60% from that of unprocessed organic-carbon-containing feedstock on a dry basis. The processed feedstock is introduced into a substantially microwave-transparent reaction chamber. A microwave source emits microwaves which are directed through the microwave-transparent wall of the reaction chamber to impinge on the feedstock within the reaction chamber. The microwave source may be rotated relative to the reaction chamber. The feedstock is subjected to microwaves until the desired reaction occurs to produce a solid processed biochar fuel.
Owner:BIOMASS ENERGY ENHANCEMENTS
Fuel mixture containing combustible solid powder and engine using the fuel mixture
InactiveUS20110239973A1Increase energy densityLow costNon-fuel substance addition to fuelInternal combustion piston enginesRenewable biomassLiquid fuel
The present invention refers to a fuel mixture that contains combustible solid powder and produced by mixing combustible solid powder and liquid fuel. It is in a simple way to make use of renewable biomass materials instead of fossil fuel for driving internal combustion engine to provide powder, in favor of saving fossil fuel resource. And an engine can use the fuel mixture.
Owner:QIN CAIDONG
Castor-oil-based hyperbranched UV curable polyurethane acrylate and preparation method and application thereof
ActiveCN106397719AIncrease the scope of applicationIncrease valueInksPolyurea/polyurethane coatingsPropanoic acidRenewable biomass
The invention belongs to the field of UV curable high-molecular materials and in particular relates to castor-oil-based hyperbranched UV curable polyurethane acrylate and a preparation method and application thereof. The preparation method comprises the steps: firstly, dyhydroxyl propionic acid and castor oil are prepared into hydroxyl terminatedend capped polyfunctional hyperbranched resin through decompression esterification reaction; then a mixture of polyisocyanate and a catalyst is added to react for 2 to 3h; then the certain amount of active diluting monomer is added in stirring to dissolve isocyanato terminatedend capped hyperbranched resin; finally, metric (methyl) acrylate hydroxyalkyl ester is added to react with a polymerization inhibitor for 1.5 to 2.5h to obtain the castor-oil-based hyperbranched UV curable polyurethane acrylate. According to the castor-oil-based hyperbranched UV curable polyurethane acrylate, the castor oil is utilized as a polyurethane raw material; thus, the application range of natural renewable biomass grease products are expanded, the added value of the natural renewable biomass grease products is improved, and the positive popularization significance is achieved.
Owner:SOUTH CHINA AGRI UNIV
Power generation system
InactiveUS7621129B2Increase production capacityRestricts distributionLiquid degasificationFrom solar energyPower stationElectric power system
A geothermal power system for production of power, and in particular electrical energy, utilizing naturally occurring geothermal energy sources and a method for identifying and converting manmade and natural geological formations into a substantial source of energy and at the same time providing remediation of environmental and safety hazards. Utilizing surface air that is substantially cooler than the geothermal temperature of the subterranean cavern an induced air flow will be produced. This naturally induced air flow will be harnessed and provide the energy to the system power plants for production of electrical energy. The system includes a hydro-electric power system, a geothermal well, underground farms, heat recovery systems, a source of renewable biomass material, and air and water remediation systems.
Owner:MINE NRG
Preparation method and application of biomass graphitized porous carbon material
InactiveCN107265436AHigh degree of graphitizationExcellent rate performanceCarbon preparation/purificationPorous carbonCarbonization
The invention provides a preparation method and an application of a biomass graphitized porous carbon material, and belongs to the technical fields of preparation of carbon materials and utilization of biological resources. The method comprises the following steps: carbonizing plants used as a carbon source, and fully mixing the carbonized plants with a pore forming agent / catalyst and a solvent to obtain a mixture; and drying the mixture, and carrying out high-temperature heat treatment on the dried mixture in an inert gas atmosphere to finally obtain the graphitized porous carbon material. Renewable biomass is used as the carbon source, the intrinsic microstructure of the biomass is reserved, and the porous form formation and the graphitization of the carbon material are simultaneously completed through a one-step technology, so the preparation method has the advantages of low cost, non-toxicity, greenness, environmental protection, good safety, high efficiency, and realization of large-scale production; and the biomass graphitized porous carbon material has the advantages of large specific surface area and high graphitization degree, and is suitable for being applied to the energy storage field as an electrode material.
Owner:WUHAN UNIV
Power generation system
InactiveUS20090120091A1Provide economyReduce productionLiquid degasificationFrom solar energyPower stationRenewable biomass
A geothermal power system for production of power, and in particular electrical energy, utilizing naturally occurring geothermal energy sources and a method for identifying and converting manmade and natural geological formations into a substantial source of energy and at the same time providing remediation of environmental and safety hazards. Utilizing surface air that is substantially cooler than the geothermal temperature of the subterranean cavern an induced air flow will be produced. This naturally induced air flow will be harnessed and provide the energy to the system power plants for production of electrical energy. The system includes a hydroelectric power system, a geothermal well, underground farms, heat recovery systems, a source of renewable biomass material, and air and water remediation systems.
Owner:MINE NRG
Gas distribution piston type Stirling engine
InactiveCN101280737AReduce volumeReduce weightHot gas positive displacement engine plantsRenewable biomassEngineering
The invention discloses an air distribution-piston stirling engine. A heat regenerator 6 is arranged in an air distribution piston cylinder body 5a and moves with an air distribution piston 5; a tube stack of a cooling tube 17 divides a cold cavity cylinder into an upper cold cavity cylinder 23 and a lower cold cavity cylinder 19; an air distribution piston rod 18 runs through a guide tube 12a of the air distribution piston rod on a cooler 12 and a guide hole 21a of the air distribution piston rod on a power piston 21 and slides in the guide tube 12a of the air distribution piston rod and the guide hole 21a thereof on the power piston 21. The improved mechanical structure of the invention reduces the volume, weight and manufacturing cost of the air distribution-piston stirling engine and enhances the efficiency and lengthens the service life of the air distribution-piston stirling engine. The air distribution-piston stirling engine of the invention can use solid, liquid and gaseous fuels and renewable biomass fuels and heat resources such as solar energy, and is characterized by wide source range of fuels and heat resources, high heating efficiency and environmental friendliness, which will be widely applied through future social production practice.
Owner:白坤生
Nitrogen-doped porous carbon-supported bimetallic catalyst and preparation method and application thereof
ActiveCN109999880ALarge specific surface areaRich porosityOrganic compound preparationHydroxy compound preparationCellulosePorous carbon
The invention discloses a thermometal-nitrogen-doped carbon-based bifunctional catalyst synthesized through a one-pot method by using nitrogen-doped bio-based porous carbon as a carrier, and a preparation method and application thereof. The catalyst can be used for catalyzing efficient selective hydrogenation of biomasses such as bio-based sorbitol, xylitol, cellulose, lignocellulose, etc. for thepreparation of low-carbon alcohol such as diol, etc. since cheap and renewable biomasses are used as raw materials for preparation of a porous nitrogen-dope carbon material without adding nitrogenousorganic compounds as the nitrogen-doped element, the catalyst of the invention is green and environmentally-friendly and the cost is low. When being used for selective hydrogenation of biomasses in awater-phase system, the prepared metal supported catalyst has excellent of catalytic activity, stability and selectivity. In addition, the separation of products and the catalyst is simple; yield ofglycol and propylene glycol in the products can reach up to 85% and above; the reaction steps are less, the condition is mild, and the operation is simple; and the catalyst has a broad application prospect.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Method for producing bio-fuel that integrates heat from carbon-carbon bond-forming reactions to drive biomass gasification reactions
ActiveUS7872054B2Improve thermal efficiencyImprove economyCatalytic crackingBiofuelsBiodieselCarbon–carbon bond
A low-temperature catalytic process for converting biomass (preferably glycerol recovered from the fabrication of bio-diesel) to synthesis gas (i.e., H2 / CO gas mixture) in an endothermic gasification reaction is described. The synthesis gas is used in exothermic carbon-carbon bond-forming reactions, such as Fischer-Tropsch, methanol, or dimethylether syntheses. The heat from the exothermic carbon-carbon bond-forming reaction is integrated with the endothermic gasification reaction, thus providing an energy-efficient route for producing fuels and chemicals from renewable biomass resources.
Owner:VIRENT +1
Biomass downdraft type gasification air and heat supply system
InactiveCN105907425AImprove energy conversion efficiencyRealize comprehensive utilizationEnergy inputGasification processes detailsControl systemRenewable biomass
The invention discloses a biomass downdraft type gasification air and heat supply system which comprises a gasification system, a heat supply system and a control system. The gasification system comprises a feeding system, a gasification reduction system, an ash discharge deslagging system and a dust removal cooling system. The heat supply system comprises a waste heat recycling hot water system and a cooling system. The feeding system, the gasification reduction system and the ash discharge deslagging system are sequentially connected from top to bottom. The dust removal cooling system is connected with the ash discharge deslagging system. The hot water system is arranged on the periphery of the gasification system and the dust removal cooling system. The cooling system is connected with the hot water system. The biomass downdraft type gasification air and heat supply system has the advantages that the complete gasification and heat supply system is formed, scientific planning is performed, and the clean and environment-friendly automatic air and heat supply system is formed. The sub devices are scientific and compact in structure, the automatic level is high, use is convenient, gas is produced efficiently, the outlet gas is clean and low in temperature, and energy conservation and environmental protection are achieved; the positive pushing effect is achieved for extended application of renewable biomass energy.
Owner:周勇
Cellulose nanocrystals from renewable biomass
InactiveUS20120244357A1Quality improvementSignificant comprehensive benefitsIndividual molecule manipulationSynthetic resin layered productsPersulfateRenewable biomass
A process for producing cellulose nanocrystals (CNCs) involves providing a cellulosic material, contacting the cellulosic material with an inorganic persulfate at an elevated temperature to produce CNCs, and recovering the CNCs. The process permits one-step production of CNCs from vegetative biomasses such as flax and hemp. Cellulose nanocrystals produced by the process with carboxylic groups are more uniform and have higher aspect ratios than CNCs produced by prior art processes.
Owner:NAT RES COUNCIL OF CANADA
Cellulose nanocrystals from renewable biomass
A process for producing cellulose nanocrystals (CNCs) involves providing a cellulosic material, contacting the cellulosic material with an inorganic persulfate at an elevated temperature to produce CNCs, and recovering the CNCs. The process permits one-step production of CNCs from vegetative biomasses such as flax and hemp. Cellulose nanocrystals produced by the process with carboxylic groups are more uniform and have higher aspect ratios than CNCs produced by prior art processes.
Owner:NAT RES COUNCIL OF CANADA
Plant fiber-reinforced polypropylene composite material and preparation method thereof, and application of plant fiber-reinforced polypropylene composite material in preparation of automobile components
The invention discloses a plant fiber-reinforced polypropylene composite material and a preparation method thereof, and an application of the plant fiber-reinforced polypropylene composite material in preparation of automobile components. The composite material is prepared from the following raw materials in percentage by weight: 40%-77% of polypropylene, 20%-40% of a plant fiber, 1%-10% of vegetable oil, 1%-10% of a flexibilizer and 0.1%-5% of an assistant, wherein the plant fibers and the vegetable oil are from renewable biomass, and conform to the requirements of low-carbon, environment-friendly and sustained economic development. In addition, a low-density biomass material is capable of further promoting light weight of automobiles, and is of great significance in energy conservation and emission reduction. The plant fiber-reinforced polypropylene composite material for automobiles can be prepared by extrusion once, so that the method is simple, easy to operate and suitable for industrialized production.
Owner:NINGBO HOMELINK ECO ITECH CO LTD
Biomass fuel with good formability
InactiveCN103666620AStrong coagulationCompact structureSolid fuelsWaste based fuelFiberEnvironmental resistance
The invention relates to environment-friendly biomass fuel with good formability. The biomass fuel is renewable biomass fuel free of any harmful substance, which is prepared by mixing wood dust powder and an additive, wherein the additive is high clay having high viscosity and strong adsorptive power; and the biomass fuel is prepared by mixing the wood dust and the additive according to a ratio of 9:1. The high clay additive is beneficial to formation of wood dust particles, and the multiporous fiber-like structure of the high clay additive can adsorb tar in flue gas from a heating system in the biomass fuel processing course, thereby preventing the tar from being attached to a granulator and a chimney and further avoiding influencing the granulating effect. Besides, the additive also solves the problem that the tar is difficult to remove and clean.
Owner:广州金安源节能科技股份有限公司
Cellulose environment-friendly synthesis method of nano silver particles
The invention discloses a cellulose environment-friendly synthesis method of nano silver particles. The cellulose environment-friendly synthesis method comprises the following steps of: placing cellulose and silver sulfate in a polytetrafluoroethylene lining, adding deionized water, fully stirring to ensure that the cellulose, the silver sulfate and the deionized water are uniformly mixed; and loading the lining in a high-pressure autoclave and placing in an oven, heating for 10-24h at a temperature of 180-210 DEG C, taking out and then naturally cooling; centrifuging or suction-filtering and separating a cooled product to obtain the nano silver particles. According to the cellulose environmental-friendly synthesis method, other chemical agents are not needed to be introduced, renewable biomass resources can be utilized, and the convenience is brought for the operation; the synthesized nano silver particles are controllable in morphology and size, uniform in dispersion, and high in yield; and the synthesized nano silver particles are not agglomerated.
Owner:PUTIAN UNIV
Preparation method of hydrophobic low-density shaddock peel carbon aerogel and application thereof
InactiveCN107159111AReduce manufacturing costReduce pollutionOther chemical processesAlkali metal oxides/hydroxidesWater bathsFreeze-drying
Owner:JIANGSU UNIV
Method for preparing synthetic natural gas by coke oven gas in combination with straw gas
InactiveCN102585950AReduce the number of segmentsImprove conversion rateGaseous fuelsMethanationRenewable biomass
The invention discloses a method for preparing a synthetic natural gas by a coke oven gas in combination with a straw gas. The method comprises the following seven steps of: regulation of feed gas components, compression purification, pre-heating treatment and adding of water vapor, primary section of methanation reaction, secondary section of methanation reaction, gas-liquid separation, and pressure swing adsorption for purifying methanol to finally obtain the synthetic natural gas with CH4 concentration being more than 90%. According to the method for preparing the synthetic natural gas by the coke oven gas in combination with the straw gas, the coke oven gas and biomass renewable energy source straw gas are comprehensively used according to the characteristics of much hydrogen and less carbon in the coke oven gas and less hydrogen and much carbon in the straw gas to prepare the synthetic natural gas, energy exchange is fully utilized, circulating compression is reduced, energy is saved and emission is reduced, the economic benefit is improved, the environmental protection is facilitated, and the renewable biomass energy is developed to replace fossil energy.
Owner:SICHUAN TECHAIRS
Method for preparing nitrogen-containing ordered mesoporous carbon (OMC) materials based on biomass bases
ActiveCN103466598ASolve the regeneration problemCarbon preparation/purificationCarbonizationFurfural
The invention relates to a method for preparing nitrogen-containing ordered mesoporous carbon (OMC) materials based on biomass bases. The method comprises the following steps of preparing a structure-directly agent solution; adding a phenolic aldehyde condensation oligomer prepared through phenolic aldehyde condensation reaction between biomass phenols instead of part of phenols and furfural to the structure-directly agent solution, heating the mixture to 75-100 DEG C, stirring the materials uniformly, then reacting at 100-200 DEG C for 6-72 hours, filtering and drying the reactant, then roasting the reactant at 350-500 DEG C for 1-3 hours in an inert atmosphere, then carrying out acid pickling and drying and then carrying out high temperature carbonization at 600-900 DEG C for 1-5 hours under the protection of the inert atmosphere, thus obtaining the nitrogen-containing OMC materials. The method has the advantages that cheap regenerable biomass phenols are adopted instead of part of phenols, thus solving the problem of current energy regeneration; the structure-directly agent solution formed by adopting combined action of a specific metal ion compound and a polymer containing imidogen can be used for regulating the specific surface area according to the actual requirements.
Owner:ZHONGYING CHANGJIANG INTERNATIONAL NEW ENERGY INVESTMENT CO LTD
One-pot cellulose hydrothermal synthesis method for preparing high-draw-ratio silver nanowire
InactiveCN103357890AEasy to operateUniform sizePolycrystalline material growthFrom normal temperature solutionsCelluloseFiltration
The invention discloses a one-pot cellulose hydrothermal synthesis method for preparing a high-draw-ratio silver nanowire. The method comprises the following steps: adding cellulose, silver sulfate, cetyl trimethyl ammonium bromide and deionized water into a polytetrafluoroethylene liner at one time, and performing full stirring and uniform mixing; filling the liner into a high-pressure kettle, and putting the liner into an oven or a muffle furnace; heating for 10 to 24 h at the temperature of 180 to 200 DEG C, and taking the liner out for natural cooling; and performing centrifugal separation or suction filtration separation on a cooled product to obtain the high-draw-ratio silver nanowire. By using renewable biomass resources, the method is easy to operate; the silver nanowire is generated by one-pot; and the average diameter of the obtained silver nanowire is 90 to 350 nm, the draw ratio is more than 200, and the silver nanowire is uniform in size and high in yield.
Owner:PUTIAN UNIV
Novel method for preparing vinyl acetate from bioethanol
ActiveCN101798265AReduce energy consumptionReduce material consumptionOrganic compound preparationCarboxylic acid esters preparationAcetic acidDistillation
The invention relates to a novel method for preparing vinyl acetate from bioethanol. Ethanol is fermented into finished yeast mash used as the raw material, and three cells, i.e. bio-ethylene preparation, vinyl acetate synthetic reaction, vinyl acetate refinement, are used for producing the vinyl acetate product satisfying the requirements. The method is realized in a way that: the mass concentration of the ethanol water solution from an ethanol distillation tower is 40-60%, and the raw material ethanol used for preparing ethylene through dehydration does not need to be diluted by adding water, and is directly vaporized by heating and conveyed into an ethylene reactor; after cooling to condense the ethylene reaction gas from an ethylene reactor, gas is separated from liquid in a gas / liquid separating tank, and the gas mainly containing the ethylene is conveyed to a vinyl acetate reaction unit to synthesize the vinyl acetate after being compressed by using an ethylene compressor, thereby realizing zero consumption of process water in the ethylene production process. Thus, the invention simplifies and shortens the production process and reduces the energy consumption and material consumption in the vinyl acetate production process. By using the method, renewable biomass materials in the vinyl acetate production process can partially replace unrenewable fossil materials.
Owner:TIANJIN UNIV
Method for preparing biomass-based methanol
InactiveCN101863736AHigh yieldHigh selectivityOrganic compound preparationBiofuelsLiquid productBiomass carbon
The invention provides a method for preparing biomass-based methanol, which comprises the following steps: a) cracking biomass to form biological oil vapor and biomass carbon powder; b) performing gas-solid separation of the biological oil vapor and performing a water vapor reforming reaction to obtain a biological oil reformed synthesis gas; c) grinding and mixing the biomass carbon powder, a catalyst and a bonding agent, drying the mixture, performing a reduction reaction by using hydrogen, heating the product of the reduction, performing a coal gasification reaction and a reverse coal gasification reaction of the product of the reduction and the biological oil reformed synthesis gas, condensing and drying the obtained mixed gas to obtain biomass reformed-modified synthesis gas; and d) performing a synthesis reaction of the biomass reformed-modified synthesis gas, condensing the obtained reaction tail gas, and obtaining the biomass-based methanol from a liquid product. The method can effectively convert a biomass-based synthesis gas into the biomass-based methanol, uses the rich, environmentally-friendly and renewable biomass as a raw material, achieves high methanol yield and selectively, makes reaction conditions mild and can be used for industrial production.
Owner:UNIV OF SCI & TECH OF CHINA
Method for preparing biodiesel through catalysis of natural biomass solid acid catalyst
InactiveCN102965203AHigh yieldHigh mechanical strengthFatty acid esterificationOrganic-compounds/hydrides/coordination-complexes catalystsOil and greaseBiodiesel
The invention provides a method for preparing biodiesel through catalysis of a natural biomass solid acid catalyst. The method comprises the following steps: 1, washing, drying and crushing the natural biomass, weighing and impregnating the crushed biomass, and taking out and drying the biomass; 2, impregnating acidified biomass in a metal salt solution, taking out and drying; 3, placing the biomass loaded with metal salt in a muffle furnace for roasting to obtain a natural biomass solid acid catalyst; and 4, adding the prepared biomass solid acid catalyst, short chain alcohol and oil into a batch reactor for esterification and an ester exchange reaction; after the reaction, conducting reduced pressure distillation to remove excessive short chain alcohol; and standing to delaminate glycerol and biodiesel produced in the reaction, wherein the biodiesel product is on an upper layer. According to the invention, natural renewable biomass is used as a raw material for direct acidification, without carbonization, so as to realize low cost and high biological diesel oil yield; besides, the prepared catalyst has advantages of good mechanical strength, particle size conducive to recovery, and no secondary pollution.
Owner:WEIFANG JIN XIN DA BIO CHEM
Novel sodium salt cardanol surfactant and preparation method thereof
InactiveCN101898097ALight colorImprove performanceTransportation and packagingMixingRenewable biomassDissolution
The invention provides a novel sodium salt cardanol surfactant, which has the following structural formula, wherein R represents C15H31. The invention also provides a preparation method for the novel sodium salt cardanol surfactant. High-purity cardanol extracted from natural cashew nut shells is innocuous and light in color; and the innocuous environment-friendly novel cardanol surfactant with excellent performance can be obtained by sulfonation reaction of the regenerative biomass cardanol and alkali neutralization. Meanwhile, the novel sodium salt cardanol surfactant has the advantages of good hydraulic lubricating property, strong detergency, moderate foam, good dissolution, low skin irritation, good biodegradability and good compatibility with other surfactants.
Owner:上海美东生物材料股份有限公司
Method for synthesizing perovskite LaCoO3 composite oxide material from bagasse
ActiveCN104741068ASimple processLow costOther chemical processesCobalt oxides/hydroxidesNitrateRenewable biomass
The invention provides a method for synthesizing a perovskite LaCoO3 composite oxide material from bagasse and relates to the perovskite type composite oxide material. The method comprises the following steps: (1) dissolving lanthanum nitrate and cobalt nitrate into water to form a mixed solution, adding with bagasse, and drying to obtain xerogel; and (2) igniting xerogel obtained in the step (1) to obtain black precursor powder, pre-decomposing black precursor powder in a muffle furnace, and calcining, so as to obtain the perovskite LaCoO3 composite oxide material. The perovskite-structured LaCoO3 composite oxide material is prepared by directly complexing and burning bagasse with metal salt, so that the process is simple, and the cost is low; the method is a novel method for preparing perovskite type nano materials from renewable biomasses.
Owner:XIAMEN UNIV
Cardanol modified waterborne epoxy curing agent and preparation method thereof
ActiveCN109517141ALow viscosityImprove mechanical propertiesEpoxy resin coatingsPolyethylene glycolFatty amine
The invention discloses a cardanol modified waterborne epoxy curing agent and a preparation method thereof. The cardanol modified waterborne epoxy curing agent is prepared by taking cardanol and polyethylene glycol as raw materials through the following steps: firstly, synthesizing polyethylene glycol diglycidyl ether and cardanol glycidyl ether respectively; then dropwise adding the polyethyleneglycol diglycidyl ether and fatty amine to react; and adding the cardanol glycidyl ether and carrying out reaction to prepare a product. The epoxy curing agent has water dispersibility and the viscosity is relatively low and is 1000 to 4000mpa.s, so that the epoxy curing agent can be stably stored under the condition that no diluting agent exists and is used for epoxy resin coating. According to the cardanol modified waterborne epoxy curing agent, the raw material cardanol is low in price, is easy to obtain and is a renewable biomass energy source; the structure contains a benzene ring rigid structure and a long-chain hydrocarbonyl substituent group, so that the thermal stability and mechanical properties of an epoxy resin cured product are improved; the curing agent which takes water as adispersion medium is convenient to use and can be constructed on a low-temperature and damp structure to form a film; and the content of VOC (Volatile Organic Compounds) is low and an energy-saving and environment-friendly development concept is met better.
Owner:ANHUI UNIVERSITY
Polylactic acid/hydrogenated polybutadiene thermoplastic supramolecular elastomer and preparation method thereof
The invention relates to a high molecular thermoplastic elastomer technology, and aims to provide a polylactic acid / hydrogenated polybutadiene thermoplastic supramolecular elastomer and a preparation method thereof. The polylactic acid / hydrogenated polybutadiene thermoplastic supramolecular elastomer contains a PLA-PEB-PLA triblock copolymer containing a PLA block and a PEB block as a basic unit; and the terminal group of the basic unit is a 2-carbamido-4[1H]-pyrimidone group capable of forming quadruple hydrogen bonds. According to the high molecular thermoplastic elastomer technology, by adjusting the proportions of PLA and PEB, the intensity and the modulus of the elastomer are easy to adjust; because a UPy group is used as the structural unit, the elastomer is high in binding force and has reversibility; the prepared elastomer has better mechanical property; simultaneously, the elastomer also has the functions of memorizing shapes, self-repairing and the like; PLA is used as the hard section of the supramolecular elastomer; PLA can be prepared on the basis of renewable biomass resources and degraded after being used; and the polylactic acid / hydrogenated polybutadiene thermoplastic supramolecular elastomer is low in pollution to the environment, environmentally friendly and resource-saving.
Owner:ZHEJIANG UNIV
Features
- R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
Why Patsnap Eureka
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com