516 results about "Biodiesel" patented technology

The invention discloses a heat exchanger with a protection function for biodiesel preparation, and relates to the technical field of heat exchangers, the heat exchanger comprises heat exchange equipment and further comprises a protection device, a control device is fixedly installed on the front side of the heat exchange equipment, a liquid inlet pipe is fixedly installed on the left side of the heat exchange equipment, and a placing frame is fixedly installed on the left side of the heat exchange equipment; wherein the protection device comprises a connecting pipe, an adjusting hole, an adjusting frame, an L-shaped rod, a protection groove, a rotating rod, a protection disc and a limiting groove, the L-shaped rod moves upwards to be separated from the adjusting hole and release limiting of the connecting pipe, and after limiting of the connecting pipe is released, the connecting pipe is manually pushed to move in the direction close to the oil storage tank for butt joint; and through the protection disc, loosening or displacement of the connecting pipe caused by the fact that an operator accidentally touches the L-shaped rod can be effectively prevented, and therefore the risk of leakage or accidents is reduced.

The invention discloses an ionic liquid catalyst for producing renewable fuel from waste grease as well as a preparation method and application of the ionic liquid catalyst, and belongs to the technical field of waste grease treatment. The self-synthesized ionic liquid catalyst is adopted to catalyze hydrogenation of the waste oil and fat to produce renewable fuel, impurities in the waste oil and fat can be adsorbed or converted into products, the yield and quality of the products are improved, and a foundation is laid for industrial production of second-generation biodiesel from the waste oil and fat.

The invention relates to the technical field of biodiesel hydrogenation catalysts, and particularly discloses a hydrogenation catalyst of organic bentonite loaded cerium-zirconium solid solution and nickel-molybdenum phosphide as well as a preparation method and application of the hydrogenation catalyst. The hydrogenation catalyst with the organic bentonite loaded with the cerium-zirconium solid solution and the nickel-molybdenum phosphide comprises an organic bentonite carrier, the cerium-zirconium solid solution and the nickel-molybdenum phosphide, the loading capacity of the cerium-zirconium solid solution on the organic bentonite carrier is 2-2.5 wt%; the cerium-zirconium solid solution comprises cerium dioxide and zirconium dioxide; the loading capacity of the nickel molybdenum phosphide on the organic bentonite carrier is 10-15 wt%; and the nickel molybdenum phosphide is Ni2Mo3P. The organobentonite carrier provides an acid site and promotes deoxidation path optimization, the layered structure of the organobentonite carrier can limit the cerium-zirconium solid solution and the nickel-molybdenum phosphide, and organic groups are also embedded into the layered structure, so that the organic compatibility of the organobentonite carrier to biodiesel is improved, and the catalytic efficiency is improved. The cerium-zirconium solid solution provides oxygen vacancies, promotes hydrogenation / deoxidation, and improves the thermal stability and sintering resistance of the catalyst.

The invention belongs to the field of sewage treatment, and particularly relates to a preparation method and application of a biological composite carbon source, and the preparation method comprises the following steps: mixing waste beer yeast liquid and biodiesel byproducts, adding an enzyme preparation, carrying out mixing reaction, and separating out supernatant to obtain the biological composite carbon source. The biological composite carbon source disclosed by the invention is low in production cost, rich in nutritional ingredients and high in adaptability, and has long-term effectiveness, high denitrification rate and denitrification effect.

The invention discloses a molasses-based biomass sulfonated carbon catalyst preparation method, which comprises: grinding and mixing solid molasses and sodium hydroxide, calcining at 500-650 DEG C in an inert atmosphere to obtain activated carbon, and carrying out a sulfonation reaction on the activated carbon and concentrated sulfuric acid to obtain the catalyst. According to the method, by-product molasses in the sugar industry is taken as a raw material, a carbon source is rich in source, low in price and easy to obtain, the process is simple, the catalyst has relatively high specific surface area and conversion rate, the by-product can be utilized in a high-valued manner, and the method has certain industrial practical value.

The invention discloses a system and a method for extracting a biodiesel raw material from kitchen waste. The system comprises a pulping pulverizer, a mixing distributor, a heat exchanger and a three-phase separation tank, wherein the pulping pulverizer and the mixing distributor are connected through a slurry circulating pipe, and a forced circulating pump is arranged on the slurry circulating pipe; the heat exchanger is connected to the top of the mixing distributor, the three-phase separation tank is connected to the top of the heat exchanger, a horn-shaped filter cover is arranged in the middle of the interior of the three-phase separation tank, the top end of the horn-shaped filter cover is connected with a solid-liquid mixture circulating pipe, and the solid-liquid mixture circulating pipe is connected with the pulping pulverizer; the pulping pulverizer at the top end of the three-phase separation tank is connected with the secondary steam circulating pipe; the pulping pulverizer, the mixing distributor, the heat exchanger and the three-phase separation tank are all of a closed structure. The system and the method have the characteristics of high oil phase extraction rate, good oil-water separation effect and low energy consumption, and provide important technical support for promoting resource utilization of the kitchen waste.

This application discloses an ionic liquid catalyst for producing renewable fuel from waste oils and fats, as well as its preparation method and application, belonging to the field of waste oil and fat processing technology. Using a self-synthesized ionic liquid catalyst to catalyze the hydrogenation of waste oils and fats to produce renewable fuels, this catalyst can adsorb or convert impurities in the waste oils and fats into products, improving product yield and quality. This paves the way for the industrialized production of second-generation biodiesel from waste oils and fats.

The invention relates to the technical field of sustainable aviation fuel preparation processes, and discloses a process for producing sustainable aviation fuel by capturing carbon dioxide of an industrial boiler with an industrial byproduct hydrogen, which comprises the following steps: S1, raw material pretreatment; s2, converting hydrogen and carbon dioxide in the raw materials into Fischer-Tropsch synthesis gas by using a catalyst; s3, converting the Fischer-Tropsch synthesis gas obtained in S2 into liquid alkane; s4, the liquid alkane obtained in S3 is subjected to hydroisomerization to generate sustainable aviation fuel, industrial by-products of hydrogen and carbon dioxide can be converted into the sustainable aviation fuel through the steps of Fischer-Tropsch synthesis, hydroisomerization and the like, the fuel can serve as a substitute of petroleum fuel, dependence on traditional petroleum resources is reduced, and the sustainable aviation fuel is obtained. According to the invention, not only can sustainable aviation fuel be produced, but also light products (C5-C8 alkanes) and heavy products (C16-C24 alkanes) can be generated, and the light products and the heavy products can be respectively used for further Fischer-Tropsch synthesis reaction and can be sold as automotive second-generation biodiesel.

The invention discloses a method for producing biological aviation kerosene from high-acid-value oil, which comprises the following steps: mixing the high-acid-value oil without mechanical impurities with a deacidification pretreatment catalyst to obtain a mixture, and adding the mixture into a slurry bed reactor for deacidification pretreatment to obtain effluent; s2, performing solid-liquid separation on the effluent obtained in the step S1 to obtain a liquid-phase product, and performing hydrotreatment on the liquid-phase product sequentially through a fixed bed hydrodeoxygenation reactor, a fixed bed hydrocracking reactor and a fixed bed hydroisomerization reactor which are connected in series to obtain a hydrogenated product; and carrying out gas-liquid separation on the hydrogenation product to obtain a liquid product, and fractionating the liquid product to obtain a naphtha fraction, a biological aviation kerosene fraction and a biodiesel fraction. According to the method, the high-acid-value oil can be converted into the biological aviation kerosene in a high-yield manner.

The invention discloses a resource regeneration method of waste lubricating oil, relates to the technical field of petrochemical engineering, and belongs to the patent classification number C10M175 / 06. The preparation method comprises the following steps: adding a composite flocculant into the waste lubricating oil, heating and stirring, and then carrying out magnetic separation to obtain pretreated waste lubricating oil; uniformly mixing the pretreated waste lubricating oil, glycerol and a Ni / Al2O3 catalyst, then heating and reacting under pressure, and cooling to room temperature to obtain a catalytic hydrogenation product; and carrying out reduced pressure distillation on the catalytic hydrogenation product, recovering the lubricant base oil fraction, adding methanol and concentrated sulfuric acid into the distillation residual liquid, heating for esterification reaction, and separating the liquid to obtain the biodiesel. In the pretreatment process, the composite flocculant is used for removing acid and particle impurities in the lubricating oil, a traditional alkali adding neutralization precipitation process is replaced, the method is environmentally friendly, and the recovery cost of enterprises is reduced.

The invention relates to the technical field of biomass liquid fuels, in particular to a biomass liquid fuel and a preparation method thereof, and the biomass liquid fuel comprises the following components by weight: 40-60 parts of biomass-based methanol; 10 to 20 parts of biomass-based ethanol; 5 to 15 parts of biomass-based n-butyl alcohol; 5 to 10 parts of dimethyl ether; 10 to 20 parts of biodiesel; 1-5 parts of a lignin derivative; 0.1 to 0.5 part of an antioxidant; 0.1 to 0.5 part of a stabilizing agent; 0.5-2 parts of a purification dispersant; 1-3 parts of bio-based glycerol n-butyl ether; according to the invention, a plurality of alcohols (methanol, ethanol and n-butyl alcohol) are synergistically used, so that a series with the carbon chain length gradually increasing from C1 to C4 is formed. According to the design, the volatility and the energy density of the fuel are balanced, the oxygen content of the fuel is increased through hydroxyl (-OH) in alcohol molecules, and more complete combustion is promoted.

The invention discloses a comprehensive utilization method and system for high-value organic wastes and adjustable target products, and belongs to the technical field of resource utilization of organic wastes. The system comprises gasification and carbonization equipment, an afterburning type waste heat boiler, a gas generator set, steam explosion equipment, activated carbon preparation equipment, anaerobic fermentation equipment, a methanol preparation system, flue gas waste heat recycling equipment, an ammonia gas preparation system, biomass charcoal pure oxygen combustion equipment, a green hydrogen preparation system and a biodiesel preparation system. The three technologies of gasification carbonization, steam explosion and anaerobic fermentation are coupled, the treatment efficiency is greatly improved, deep resource utilization of organic solid waste and organic wastewater is achieved through the same set of equipment, the equipment investment is reduced, and the occupied area is reduced; biomass green electric power generated by the gas generator set is used for splitting water to produce hydrogen and oxygen; and secondary gradient utilization and material reutilization of the waste heat of the flue gas are realized.

The invention discloses a supported composite zinc catalyst and application thereof in biodiesel, and belongs to the technical field of catalyst preparation. The supported composite zinc catalyst provided by the invention comprises the following components: an AlPO4-SiO2 composite carrier, a zinc-cerium bimetallic active component supported on the carrier, and a hydrophobic modification layer coated outside the active component. The supported composite zinc catalyst has higher tolerance to moisture and free fatty acid in the waste grease, saponification side reaction is reduced, raw material pretreatment requirements are simplified, the catalyst is easy to recover and reuse, and production cost and environmental burden are remarkably reduced.

The invention discloses immobilized lipase based on bifunctional silicon dioxide as well as a preparation method and application of the immobilized lipase. Hydrophobic modification and covalent modification are performed on the surface of mesoporous silicon dioxide to obtain a bifunctional silicon dioxide carrier; the hydrophobic modification is any one of methylation modification, octylation modification, octadecyl alkylation modification, esterification modification and bromopropylation modification. The dual-functionalized silicon dioxide carrier is used for immobilization of lipase, and the prepared immobilized lipase can be used for production of biodiesel. The immobilized lipase provided by the invention is mild in enzyme reaction condition, good in biocompatibility, relatively high in enzyme activity, and excellent in stability and repeatability. In addition, by changing the ratio of the covalent modifier to the hydrophobic modifier, the catalytic activity and stability of the immobilized enzyme and the biodiesel yield are remarkably improved.

The invention belongs to the technical field of solid waste treatment, and discloses a kitchen garbage resourceful treatment device and method. The treatment device comprises a kitchen waste staged treatment unit, a deodorization unit, a heat supply unit, a flue gas treatment unit and a PLC (Programmable Logic Controller) automatic control unit. According to the characteristics of high oil content and high organic matter content of the kitchen garbage, swill oil is separated out through a physical method, then the water of the kitchen garbage is used as a catalyst and a reactant, a subcritical hydrothermal liquefaction reaction is conducted, bio-oil, a water-phase product and biochar are produced, the bio-oil can be used for refining biodiesel, and the biochar can be used for refining biodiesel. The water-phase product can be used for producing liquid water fertilizer, the biochar can be used for agriculture and fuel, harmless, recycling and high-value utilization of the kitchen garbage can be realized, the fertilizer is turned into wealth, potential environmental and health risks caused by improper treatment of the kitchen garbage are avoided, resource waste is reduced, and the environmental, economic and social benefits are remarkable.

The invention discloses a high-temperature-resistant drilling fluid lubricant and a production process thereof, and relates to the field of lubricants, and the high-temperature-resistant drilling fluid lubricant comprises the following raw materials in parts by weight: 90-100 parts of biodiesel, 0.8-1.0 part of a surfactant, 0.8-1.0 part of an emulsifier, 12-16 parts of modified alkyl glycoside, 4-6 parts of modified microspheres, and 0.5-0.7 part of a dispersant. The synthesized modified alkyl glycoside comprises an imidazole quaternary ammonium cation, an ester group and a hindered phenol structure, and the oxidation resistance, the high temperature resistance and the corrosion resistance of the drilling fluid lubricant are improved. The synthesized modified microspheres comprise silicon dioxide microspheres and a polymerized carbodiimide structure, so that the hydrolysis resistance, high temperature resistance and wear resistance of the drilling fluid lubricant are improved.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and / or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and / or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and / or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

The invention belongs to the technical field of photo-thermal catalysis and biomass resource utilization, and particularly relates to a sulfonated biochar PC-SO3H-1 catalytic material as well as a preparation method and application thereof. The preparation method comprises the following steps: performing NaOH aqueous solution ultrasonic pretreatment, washing, drying and grinding on cellulose to obtain pretreated cellulose powder, uniformly dispersing the pretreated cellulose powder, p-toluenesulfonic acid and citric acid in deionized water, fully stirring at room temperature, then transferring the solution into a high-pressure reaction kettle, reacting, cooling, washing and drying to obtain the cellulose-p-toluenesulfonic acid / citric acid composite material. And grinding to obtain the PC-SO3H-1 photo-thermal catalytic material. The catalyst disclosed by the invention can be used for performing efficient photothermal conversion, so that the generation of biodiesel can be quickly catalyzed under the condition of room temperature.

A marine fuel or fuel blending composition that includes a renewable component that can be blended into heavy residual fuel oil or marine gasoil to meet statutory limits for sulfur. The renewable component may comprise biodiesel distillation tower bottoms and / or renewable diesel comprising at least 70% n-paraffins. The marine fuel composition may also include a biodiesel. Alternatively, the renewable component may comprise unrefined biodiesel, wherein the unrefined biodiesel has been separated to remove glycerol but has not been subject to further upgrading or purification. The marine fuel composition may also exhibit increased solvency.

The invention relates to the field of biodiesel catalytic materials, and particularly discloses a catalyst for kitchen waste oil, a preparation method and biodiesel. The catalyst for the kitchen waste oil is prepared from a Fe3O4-SiO2-Pr < 3 + > nano-particle carrier and a lipase solution, the catalyst is prepared from a Pr (NO3) 3 solution doped with Pr < 3 + > being 0.88-0.92 wt%, the lipase solution is a pseudomonas lipase solution with the concentration being 22-28 mg / mL, and the pH is 7.0; the preparation method comprises the following steps: preparing Fe3O4 nanospheres, coating the surfaces of the Fe3O4 nanospheres with SiO2 layers, dipping the Fe3O4 nanospheres in a Pr (NO3) 3 solution, carrying out calcination treatment to obtain a Fe3O4-SiO2-Pr < 3 + > nanoparticle carrier, placing the carrier in a lipase solution, carrying out adsorption fixation, and separating out the carrier to obtain the catalyst. The catalyst is used for processing biodiesel and has the advantages of being easy to recycle, high in loading capacity, low in activity loss and good in stability.

The invention discloses a method for efficiently preparing a fatty acid type anti-wear agent based on biodiesel, which comprises the following steps: freezing and crystallizing the raw material biodiesel, filtering, evaporating and dealcoholizing, carrying out enzyme hydrolysis, insulating and layering, and rectifying under reduced pressure to finally obtain the fatty acid type anti-wear agent. Wherein the fatty acid composition of the crude methyl ester can be directionally regulated and controlled through freezing crystallization and filtering processes; through the synergistic effect of enzyme hydrolysis reaction and high-vacuum rectification separation coupling, efficient production of the fatty acid anti-wear agent prepared from biodiesel is achieved, the production period is greatly shortened, and the product quality is improved. According to the technology disclosed by the invention, the high-quality fatty acid type anti-wear agent can be produced economically, greenly, efficiently and stably, and the acid value of the product is stabilized between 198-203mgKOH / g oil and meets the Q / SHCG 57-2017 standard. The method has the advantages of low raw material requirement, wide application range, high production efficiency, high product quality, reproducible and reusable catalyst and the like, and is suitable for industrial production.

The invention relates to the technical field of reactors, and discloses a countercurrent tower reactor and a biodiesel synthesis process, through cooperation of a stirring assembly and a cleaning mechanism, after entering a tower body, an oil material falls onto a filter plate, and the filter plate filters out oil dirt in the oil material; meanwhile, under the driving of the stirring shaft, the filter plate moves towards a cleaning shovel of the sewage discharging assembly, oil dirt on the filter plate is shoveled into a conveying groove through the cleaning shovel, and then the oil dirt is conveyed out of the tower body through a conveying rod, so that the oil dirt removal efficiency is improved. And along with the continuous rotation of the stirring shaft, the cleaned part on the filtering plate rotates to the position below the oil inlet again to filter the oil, so that the cleaning mechanism can effectively work for a long time, and the production efficiency of the device is improved.

The utility model discloses a system for extracting a biodiesel raw material from kitchen waste. The system comprises a pulping pulverizer, a mixing distributor, a heat exchanger and a three-phase separation tank, wherein the pulping pulverizer and the mixing distributor are connected through a slurry circulating pipe, and a forced circulating pump is arranged on the slurry circulating pipe; the heat exchanger is connected to the top of the mixing distributor, the three-phase separation tank is connected to the top of the heat exchanger, a horn-shaped filter cover is arranged in the middle of the interior of the three-phase separation tank, the top end of the horn-shaped filter cover is connected with a solid-liquid mixture circulating pipe, and the solid-liquid mixture circulating pipe is connected with the pulping pulverizer; the pulping pulverizer at the top end of the three-phase separation tank is connected with the secondary steam circulating pipe; the pulping pulverizer, the mixing distributor, the heat exchanger and the three-phase separation tank are all of a closed structure. The system disclosed by the utility model has the characteristics of high oil phase extraction rate, good oil-water separation effect and low energy consumption, and provides important technical support for promoting resource utilization of the kitchen waste.

The invention provides a molecular modification design method for improving esterification activity of lipase. The method comprises the following steps: calculating a channel structure of lipase to be modified through CAVER ANALYST 2.0, determining a modification site through comprehensive measurement of other calculation tools, establishing a mutant library by adopting NNK degenerate codons for site-saturated mutation, and screening out excellent mutants with improved esterification performance by adopting a microwell plate screening method based on a copper soap complexing method. According to the candida antarctica lipase B mutant M5 disclosed by the invention, in various different types of esterification reactions, the catalytic efficiency of the mutant M5 is improved by 4.5 times or more than that of a wild type. The molecular modification design method disclosed by the invention can be used for improving the esterification performance of the lipase and has relatively wide esterification reaction application applicability, so that the lipase mutant can play an important role in industrial application in the fields of foods, medicines or biodiesel and the like.

The intelligent biodiesel batching system comprises a batching storage bin, a metering assembly, a control module, a data acquisition module, a data preprocessing module, an optimization module, a control module and a batching mixing module, the metering assembly is connected with the ingredient storage bin, the data acquisition module is connected with sensors in all the assemblies, and the data acquisition module is used for acquiring data in the production process in real time; the optimization module is connected with the preprocessing module, and the optimization module generates a prediction model by using the historical sample data; the optimization module is used for determining an optimal ingredient ratio; the control module is respectively connected with the optimization module, the metering assembly and the ingredient mixing module; the optimization module provides the optimal ingredient ratio for the control module, the metering assembly is used for controlling the discharging amount of the ingredient storage bin, and the ingredient mixing module is used for mixing ingredients. By setting the machine learning module and the optimization module, the batching system generates a quality prediction model by using historical sample data.

The utility model discloses a device for preparing fulvic acid through hydrothermal reaction of wet garbage. The device comprises a hydrothermal reaction unit, a solid fulvic acid production unit, a biodiesel separation unit and a concentration and evaporation unit, the hydrothermal reaction is divided into four stages, relatively simple control parameters can be set in the industrialization process, and personnel operation and monitoring are facilitated. Even if a problem occurs in a certain stage, related problems can be quickly solved according to parameter requirements. In the concentration and evaporation stage, the temperature rise amplitude of the low-concentration fulvic acid liquid is controlled through two-stage heating, and energy consumption in the operation process is reduced. Heat sources (hot water and steam) in the concentration and evaporation stage can be used for front-end material slurry preparation and steam type drying machines and heating of low-concentration fulvic acid, use of additional heat sources is reduced, and investment cost of equipment (steam generator) in the construction process and subsequent operation cost are reduced.

The invention relates to the technical field of catalysts, and particularly discloses a Ni-Cu-CeO2 / ZrO catalyst for improving oxidation stability of biodiesel and a preparation method of the Ni-Cu-CeO2 / ZrO catalyst. The invention discloses a Ni-Cu-CeO2 / ZrO catalyst for improving oxidation stability of biodiesel. The Ni-Cu-CeO2 / ZrO catalyst comprises a carrier, an active component and an auxiliary agent, the carrier is a CeO2-ZrO2 composite oxide; the active components are Ni and Cu; ni accounts for 3-5 wt% of the mass of the catalyst, and Cu accounts for 1-3 wt% of the mass of the catalyst; the auxiliary agent is La2O3; the preparation method comprises the following steps: firstly preparing the CeO2-ZrO2 carrier by adopting a coprecipitation method, then impregnating nickel nitrate, copper nitrate and lanthanum nitrate in an isopyknic manner, and then carrying out stepped roasting to obtain the catalyst. The catalyst has high catalytic activity and stability, unsaturated fatty acid ester in biodiesel can be removed, the oxidation stability of the biodiesel is improved, and the cost of the catalyst is lower than that of a noble metal catalyst.

The invention relates to a cylindrical flow reactor for electrosynthesis of biofuel using Colbe reaction. Each reactor unit is composed of a central rod-shaped electrode and an outer tube electrode which are separated through electric insulation supporting objects located at the two ends of the reactor, the membrane-free cylindrical continuous flow reactor is characterized in that no membrane is arranged between the electrodes, and the membrane-free cylindrical continuous flow reactor can be used for preparing the membrane-free cylindrical continuous flow reactor by regulating disproportionation reaction in Kolbe, so that the membrane-free cylindrical continuous flow reactor can be used for preparing the membrane-free cylindrical continuous flow reactor, and the membrane-free cylindrical continuous flow reactor can be used for preparing the membrane-free cylindrical continuous flow reactor. According to the present invention, the bio-derived fatty acid is subjected to electrocatalytic conversion into the hydrocarbon (alkane / olefin) alcohol and aldehyde biofuel through the three paths of the dimerization condensation reaction and the Hough-Moest reaction, such that the by-product of the ester biodiesel is furthest reduced, and the cost is reduced due to the expandable cylindrical design.

The invention discloses a treatment method for rapidly preparing a carbon source from kitchen garbage. The treatment method comprises the following steps: pretreating the kitchen garbage to obtain slurry; carrying out fermentation treatment on the slurry by using hydrolytic acidification microorganisms so as to quickly hydrolyze and acidify the slurry; heating the material obtained by fermentation, and then carrying out three-phase separation to obtain grease, high-protein solid residues and centrifugate; centrifugate dephosphorization coupled particulate matter coagulating sedimentation: adjusting the pH value of the centrifugate to 6.5-10.5, and sequentially adding a flocculating agent, a dephosphorization agent and a coagulant; separating flocs to obtain high-protein solid residues and a high-quality carbon source. The method disclosed by the invention has the advantages that kitchen garbage is subjected to high-efficiency and low-cost resourceful treatment and is converted into a denitrification high-quality carbon source with low phosphate and no suspended particulate matters for sewage treatment, and meanwhile, grease capable of being used for refining biodiesel and resourceful products such as solid residues for preparing high-protein feed for breeding insects such as hermetia illucens and the like are generated; and full-quantization high-level utilization of organic matter resources is realized.

The invention is applicable to the technical field of resource utilization and biological refinery of plant-derived traditional Chinese medicine residues, and provides an open type fermentation grease production method based on bacteriostatic traditional Chinese medicine residues, which comprises the following steps: firstly, mixing the bacteriostatic traditional Chinese medicine residues and traditional Chinese medicine residues rich in polysaccharide, and then carrying out dilute acid pretreatment; then cellulase is added for hydrolysis to prepare traditional Chinese medicine residue hydrolysate as a fermentation culture medium, the fermentation culture medium does not need to be sterilized, the oleaginous yeast is directly inoculated for open fermentation, bacteriostatic components in the mixed medicine residues can avoid infectious microbe pollution, and fermentable sugar can be efficiently converted into microbial oil by the oleaginous yeast. The method is simple and efficient to operate, adopts an open fermentation mode, avoids sugar loss caused by high-temperature and high-pressure sterilization, remarkably reduces the process and equipment cost, improves the grease yield and the grease production efficiency, and has obvious comprehensive technical advantages. The fatty acid composition of the prepared microbial oil is similar to that of vegetable oil, and the microbial oil is suitable for being used as a biodiesel raw material.