40 results about "Biodiesel" patented technology

The utility model relates to the technical field of biodiesel production, in particular to a catalyst separation and recovery device for converting waste oil and fat into biodiesel, which comprises a separation tank. A feed pipe is fixedly connected to the rear position at the upper end of the separation tank, a waste discharge pipe is fixedly connected to the middle position at the lower end of the separation tank, two observation windows are fixedly connected to the front surface of the separation tank, and two adjusting components are arranged at the front position at the upper end of the separation tank. The adjusting components include a positioning sleeve, a connecting seat, a threaded sleeve, a first bevel gear, a second bevel gear, an electric motor, a threaded pipe, a connecting block, a positioning block, a discharge pipe, a first suction pipe, a second suction pipe, a positioning rod and a limiting block; the threaded pipe is driven to lift through the adjusting components, so as to adjust the heights of the first suction pipe and the second suction pipe, so that the floating oil and esterified glycerol can be accurately sucked, the separation quality of the esterified glycerol is effectively improved, the purity of the catalyst recovery is further improved, and the waste of the esterified glycerol is avoided.

The application discloses a kind of bifunctional catalyst and its application in microwave-assisted preparation of biodiesel, belong to catalysis technical field.The application introduces cobalt metal in ZIF-8 skeleton, when MOFs derivative is prepared by calcination, the introduction of transition metal can construct magnetic center, adjust the magnetic loss ability of derivative material, so that the prepared catalyst has strong wave-absorbing performance under 2.45GHz industrial microwave field, can effectively absorb microwave energy and convert it into heat energy, thereby improving the energy utilization efficiency of reaction system, and finally improving the catalytic performance of catalyst, further improve the preparation efficiency of microwave-assisted biodiesel, and has good application value and prospect in catalysis technical field.

The utility model discloses a kind of deep-frying smoke exhaust heat recovery structure, it is related to heat recovery field.The utility model includes: water storage component, the inside of water storage component is equipped with heat exchange component, one end of heat exchange component is equipped with smoke inlet pipe, the other end of heat exchange component is equipped with separation component, the inner wall of separation component is slidably cooperated with two filter components.The utility model is filtered to flue gas by being equipped with filter component, waste oil is separated from smoke, play the role of purifying flue gas, waste oil is stored in oil tank, so that staff can secondary processing to waste oil, for producing biodiesel or other industrial use, so not only recycle heat energy, but also realize the resource utilization of waste oil, improve overall economic benefit;Through the heat exchange component of being equipped with, heat is introduced into water storage component, water source in water storage component is heated for standby, greatly improve the utilization of heat.

The application discloses a waste oil and fat biological continuous skid-mounted type biodiesel preparation equipment, which comprises a casing, a stirring barrel is rotationally connected to the top surface of the casing, a feeding hole is formed in the top surface of the stirring barrel, a plurality of first heaters are installed on the circumferential outer side of the stirring barrel, and a plurality of stirring assemblies are installed in the stirring barrel. The application realizes the purposes of efficient crushing, uniform fusion and sufficient reaction of soapstock, and also realizes the purposes of slowly eccentric rotating of the sedimentation barrel driven by the eccentric shaft, forming an alternating flow field, promoting the three-phase separation of oil, water and slag, and strengthening the sedimentation effect, shortening the sedimentation period through the micro-vibration mechanism. The knocking vibration mechanism is used for reducing the hanging material of the barrel wall, improving the stirring efficiency and guaranteeing the sufficiency of the reaction. The hollow rotating shaft, the transfer cylinder and the nozzle are used for guaranteeing the accurate dispersion of the reagent, saving the reagent consumption and improving the reaction quality.

This invention relates to a method for producing biodiesel from beef tallow obtained from slaughter by-products. Specifically, it concerns how to pretreat the beef tallow using pressure distillation and filtration, then mix it with alcohols and a basic catalyst under optimized conditions for esterification, followed by a systematic post-processing procedure to produce high-quality biodiesel. According to the manufacturing method of this invention, the pretreatment conditions, reaction conditions, and post-processing are all optimized, thereby enabling the economical production of high-quality biodiesel with high yield.

A drilling fluid composition is provided herein. The drilling fluid composition comprises biorenewable components, such as a polymerized biorenewable oil and at least one of biodiesel and a nonpolymerized biorenewable oil. The drilling fluid composition is thus more environmentally friendly than conventional, petroleum-based alternatives. Water-based and oil-based drilling fluids comprising the drilling fluid composition are also provided as are methods of lubricating a borehole (e.g., a downhole well) utilizing the drilling fluid composition.

A composition comprising at least one fuel that is a diesel fuel, a biodiesel fuel, or combinations thereof and less than 100ppm, less than 50ppm (or less than 25ppm, less than 10ppm, 1 to 7ppm, or 5 to 7ppm) of an alkylene-coupled C10 to C60 (or C10 to C40, C14 to C32 or C24 to C28) alkylphenol; 25 to 500ppm (or 50 to 500ppm, or 150 to 450ppm or 250 to 450ppm, or 250 to 400ppm) of a terpolymer; and 5 to 90ppm, (or 10 to 70ppm, to 60ppm, or 10 to 55ppm) of hydrocarbyl-substituted amine detergent having at least one tertiary amino group. Methods of reducing the cold filter plugging point ("CFPP") of a fuel, said method comprising adding the following components: less than 100ppm, less than 50ppm (or less than 25ppm; less than 10ppm, 1 to 7ppm, or 5 to 7ppm) of an alkylene-coupled C10 to C60 (or C10 to C40, C14 to C32 or C24 to C28) alkylphenol; 25 to 500ppm (or 50 to 500ppm, or 150 to 450ppm or 250 to 450ppm, or 250 to 400ppm) of a terpolymer; and 5 to 90ppm, (or 10 to 70ppm, to 60ppm, or 10 to 55ppm) of hydrocarbyl-substituted amine detergent having at least one tertiary amino group. Uses of a fuel additive composition to reduce the cold filter plugging point ("CFPP") of a fuel, wherein the fuel additive composition comprises: 0.2 to 3wt% of an alkylene-coupled C10 to C60 (or C10 to C40, C14 to C32 or C24 to C28) alkylphenol; 10 to 50wt% of a terpolymer; and 2 to 10wt% of hydrocarbyl-substituted amine detergent having at least one tertiary amino group; and an optional solvent.

This utility model relates to the field of diesel deodorization technology and discloses a biodiesel deodorization device, including a tank. An upper shaft tube is rotatably connected to the top of the tank, and a rotating rod is rotatably connected inside the upper shaft tube. Multiple stirring rods are connected to the rotating rod from top to bottom. A support is installed at the bottom of the tank, and a drive motor is installed at the top of the support. A bevel gear is installed on the upper part of the upper shaft tube, and a vertical plate is installed on the support. A rotating column is rotatably installed on the vertical plate, and a bevel gear is connected to the rotating column. A bevel gear is also rotatably installed on the vertical plate. A bevel gear is installed on the upper part of the rotating rod. Multiple upper connecting rods are connected to the lower part of the upper shaft tube, and a vertical fixing rod is connected to the upper connecting rod. Multiple stirring rods are connected to the vertical fixing rod from top to bottom, and the stirring rods are arranged intersecting with the stirring rods. A lower connecting rod is connected to the bottom end of the vertical fixing rod, and one end of the lower connecting rod is connected to the lower shaft tube. This utility model simultaneously stirs and shears the biodiesel and deodorizing agent, thereby improving mixing efficiency.

This invention provides a method for synergistically preparing a composite carbon source using byproducts of wet thermal oxidation of food waste and biodiesel byproducts. The method includes the following steps: After sorting, slurry preparation, and three-phase centrifugation for oil separation, the organic slurry undergoes wet thermal oxidation treatment, followed by dehydration to obtain a liquid phase (oxidation liquid). This liquid phase is then compounded with biodiesel byproducts such as glycerol and glucose to prepare a composite carbon source with high bioavailability and non-toxicity. The composite carbon source prepared by this invention can be widely applied in municipal, agricultural, livestock, food waste, and industrial wastewater biochemical treatment processes to meet carbon source requirements.

The utility model relates to a rectifying device for biodiesel, including esterificator, rectifying tower and condenser, rectifying tower includes reboiler and the rectifying column of solid connection in reboiler top, first heating pipe is solidly established in reboiler, the rectifying column includes the first rectifying section, secondary heating section and second rectifying section of solid connection from below to above in proper order, second heating pipe is solidly established in secondary heating section, the outlet of esterificator communicates with the import of reboiler through first pipeline, and the top outlet of second rectifying section communicates with the import of condenser through second pipeline, and the outlet of condenser communicates with the recovery mouth of esterificator, the outlet of first heating pipe communicates with the import of second heating pipe through third pipeline, the utility model improves the rectification effect and utilization ratio to methyl alcohol, and then improves methyl alcohol purity, and the methyl alcohol purity is conveniently detected, and it is more convenient to use.

This invention relates to a process, a plant, and a biofuel for integrated biofuel production, such as with butanol, biodiesel, and / or sugar product. The integrated process includes the step of removing hexose from a feedstock to form a lignocellulosic material. The process also includes the step of converting the hexose to butanol and / or a biodiesel material, and the step of depolymerizing lignocellulosic material to form pentose and a residue. The process also includes the step of converting the pentose to butanol and / or a biodiesel material.

The invention relates to a lipase isolated from the goat gut rumen metagenome having protein SEQ ID 1 of 298 amino acids and being encoded for by gene SEQ ID1. The invention relates more specifically to this lipase being engineered to be an immobilised lipase, the same being immobilised on Polyethylene glycol (PEG) coated iron Magnetic Nanoparticles (MNPs). The immobilised lipase is indicated for use in a method of converting a waste oil to biodiesel, the method comprising utilizing the immobilised lipase to catalyse the conversion of said waste oils to biodiesel in the presence of a short-chain alcohol. The triacylglycerol in the waste oils being converted to alkyl esters (biodiesel) and glycerin in a reaction with an alcohol which is catalysed by said lipases.

The present application relates to a kind of biomass acid-base bifunctional heterogeneous catalyst for synthesizing biodiesel and its preparation method, its raw material source is extensive, low cost.Use poplar leaves and eggshell as catalyst raw material, waste into treasure.Catalyst in the process of catalyzing biodiesel synthesized by ester exchange of sheep oil, reaction yield is high.Sulfuric acid sulfonated biochar is compounded with eggshell, so that the catalyst has acid-base double site, and thus has good acid resistance.Biochar as carrier, the active component loaded is not easy to fall off, and increase specific surface area, enhance the activity and reaction stability of catalyst.The method can alleviate the problems such as active site leaching, poor repeatability and weak acid resistance in the process of calcium-based heterogeneous base catalytic ester exchange, and has important practical significance for actual industrial production.

This application discloses a biodiesel corrosion inhibitor, lubricant, and antioxidant, relating to the technical field of biodiesel processing. It comprises the following components: o-phenylenediamine, octanol, tetraethylenepentamine, gallic acid, cyanoethylalkylimidazolium, and deionized water; and includes the following preparation steps: S1: Gallic acid, cyanoethylalkylimidazolium, and an equimolar amount of deionized water are mixed and reacted under stirring in an oil bath. After the reaction is complete, the mixture is washed multiple times with water and evaporated by rotary evaporation to obtain a cyanoethylalkylimidazolium gallate ionic liquid antioxidant; S2: o-phenylenediamine, octanol, tetraethylenepentamine, and cyanoethylalkylimidazolium gallate ionic liquid antioxidant are then mixed in a specific ratio to obtain the biodiesel corrosion inhibitor, lubricant, and antioxidant. This application can improve the quality of biodiesel, providing necessary guarantees for its industrial and commercial applications; and can reduce problems caused by corrosion and oxidation during the use and storage of biodiesel.

The application relates to the technical field of SAF preparation, in particular to a biomass gasification SAF preparation process and device, which comprises a gasification furnace, a condensing device, an SAF synthesizing device, a hydrogenation isomerization device, an SAF separating device, an electrolytic water device and a waste heat power generation device. The method produces synthesis gas by gasifying biomass particles through a double-flow fluidized bed gasification furnace, produces hydrogen and oxygen by driving an electrolytic water hydrogen production device through renewable energy, provides oxygen to the gasification furnace, generates crude SAF by one-step F-T reaction of the synthesis gas and the hydrogen, and generates qualified SAF and biodiesel by hydrogenation isomerization and separation. The hydrogen produced by electrolytic water can be liquefied and stored through a liquid hydrogen device, hydrogen is supplemented according to the renewable energy condition, and the stability of hydrogen supply is adjusted. The method has the characteristics of simple process flow, low device operation energy consumption, good economy and the like, and has the advantages of liquid hydrogen energy storage and renewable energy fluctuation adaptation.

This utility model discloses a petrochemical storage and transportation system, including a first palm oil tank, a first biodiesel tank, a first oil tank, and a styrene unloading point. An inlet end of each of the first palm oil tank, the first biodiesel tank, and the first oil tank is connected to an outlet end of the styrene unloading point. An outlet end of each of the first palm oil tank, the first biodiesel tank, and the first oil tank is connected to a first receiving tank. An inlet end of each of the first palm oil tank, the first biodiesel tank, and the first oil tank is respectively connected to a nitrogen source, a high-pressure fire hydrant source, and an air foam liquid source. The petrochemical storage and transportation system provided by this utility model has a stable and reliable structure and can work in conjunction with the nitrogen source, the high-pressure fire hydrant source, and the air foam liquid source to clean the petrochemical storage and transportation system, ensuring the purity of the petrochemicals.

The application discloses a catalyst for preparing hydrocarbon-based biodiesel and a preparation method and application thereof, and belongs to the technical field of biodiesel, wherein stearic acid is used as a raw material for preparing hydrocarbon-based biodiesel, and a catalyst of metal nickel (Ni / XC) supported by Xanthoceras sorbifolia Bge shell carbon is used to convert stearic acid into hydrocarbon-based biodiesel (main product is heptadecane) through a deoxygenation reaction under the condition of no external hydrogen gas, the catalyst of the application promotes the deoxygenation reaction through metal-acid dual functional sites supported by the catalyst, and can inhibit the formation of carbon deposition, and the circulation usability of the Ni / XC is improved.

The present application relates to the technical field of biodiesel synthesis, and particularly relates to a molybdenum trioxide loaded reduced graphene oxide catalyst and a preparation method and application thereof, the preparation method comprising the following steps: mixing graphite powder, concentrated sulfuric acid and potassium permanganate to perform oxidation treatment, adding hydrogen peroxide to continue the reaction after the reaction is completed, and performing calcination on the graphene oxide product under the protection of a nitrogen atmosphere to obtain reduced graphene oxide; ammonium molybdate is calcined in a muffle furnace to obtain molybdenum trioxide, the obtained molybdenum trioxide and the reduced graphene oxide are compounded through a coprecipitation method, and are subjected to ultrasonic dispersion, stirring and mixing and drying treatment to obtain the molybdenum trioxide loaded reduced graphene oxide catalyst. The catalyst prepared by the present application is a solid catalyst, can be used for catalyzing the transesterification reaction of waste soybean oil to synthesize biodiesel, has no equipment corrosion, the product is easy to separate, the process is environmentally friendly, can be recycled, has a lower cost, and has a good industrial application prospect.

This invention provides a lipase@sepiolite composite microcapsule catalyst for biodiesel and its preparation method. The preparation method includes: adding sepiolite to hydrochloric acid, sealing and reacting in a water bath, washing, drying, sieving, then adding calcium and distilled water and mixing evenly to form a slurry, drying the slurry, and repeatedly washing to obtain basic calcium-based sepiolite; dispersing the basic calcium-based sepiolite in a mixture of anhydrous ethanol and water, adding a modifier, stirring, washing, and drying to obtain amphiphilic sepiolite; preparing an amphiphilic sepiolite solution in toluene solution and ultrasonically dispersing it; preparing a lipase solution in phosphate buffer solution and adding it to the amphiphilic sepiolite solution, then homogenizing. The biomimetic microcapsule's sieving membrane has a selective effect on guest molecules entering the capsule, making the reaction controllable; the special structure of the microcapsule is beneficial for maintaining the stability and activity of the enzyme.

Provided is a method for pretreating waste fat, oil and grease (FOG) and co-producing a first-generation biodiesel, including: S1, feeding waste FOG, a liquid acid catalyst, and methanol into a pre-esterification reactor, and conducting pre-esterification to obtain a pre-esterification mixed liquid; S2, removing waste residues from the pre-esterification mixed liquid through a filter to obtain a filtrate, and separating the filtrate by a liquid-liquid separator to obtain an organic phase and an aqueous phase; S3, introducing the organic phase into a methanol recovery tower I and conducting separation to obtain a pre-esterification product and crude methanol; introducing the aqueous phase into a methanol recovery tower II and conducting another separation to obtain a liquid acid catalyst and crude methanol; S4, separating the pre-esterification product through a biodiesel refining tower to obtain a first-generation biodiesel product, and a pretreated waste FOG at a tower bottom.

PROCESS FOR PRODUCING BIODIESEL FROM ACIDIC FILLERS. The present invention relates to a process for producing biodiesel with bifunctional heterogeneous acid catalysts from acidic fillers, such as fatty acids and mixtures of fatty acids with triglycerides.

This invention discloses a novel biodiesel washing tower, comprising a tower body with a bottom washing section, a middle washing section, and a top overflow section arranged sequentially from bottom to top. The top overflow section includes an oil layer and an oil-water mixture layer. Based on a traditional washing tower, this invention adds a parallel washing tank and a settling tank. The oil-water mixture layer overflowing from the top overflow layer is extracted through pipelines. The washing tanks are equipped with a stirring motor and impellers to enhance the washing intensity through mechanical stirring. Combined with the replenishment of clean water from a second inlet, this accelerates the removal of saponified substances and catalysts, resulting in a secondary, intensified washing process. This solves the problem of back-mixing caused by water flow impact in the mixing layer within the tower. The two sets of washing tanks are switched alternately via a solenoid valve on the first pipeline to ensure continuous processing capacity. When one set is washing, the other set can be settling or draining oil, avoiding processing interruptions.

This invention provides a method and system for the complete separation of organic waste components. The method innovatively adopts a separation-then-conversion approach, abandoning the previous integrated mixing treatment method. It separates all components in stages and designs a conversion path for each component, maximizing the utilization of waste value. The system comprises a pretreatment module, an air-assisted dynamic filtration module, a sedimentation-emulsification flocculation-demulsification and reduction module, an oil-water separation module, a fermentation tank, and a purification tank, all connected in sequence. Through the coordinated operation of the various mechanical structures, the system separates waste into high-purity oil, water, and solid phases, providing high-quality raw materials for subsequent diversified high-value conversion pathways such as oil-to-biodiesel, starch-to-sugar lactic acid, and cellulose-to-ethanol production.

An engine 1 comprises: a cylinder liner 2; a cylinder head 3; a piston 4; a combustion chamber 9 formed therewith; an intake port 5 communicating with the combustion chamber 9; a first injector 12 for injecting methanol into the intake port 5; and a second injector 23 for injecting ignition fuel including biodiesel fuel into the combustion chamber 9.

This invention discloses a Bacillus subtilis lipase A mutant and its applications. Using wild-type Bacillus subtilis lipase A from existing literature as the research object, its amino acid sequence was designed and modified to obtain two mutant proteins, named BsLipA-M1 and BsLipA-M2, respectively. The Tm values ​​of BsLipA-M1 and BsLipA-M2 are 68.1℃ and 69.8℃, respectively, which are higher than those of WT (53.7℃), 20G6 mutant (49.4℃), and 5F12 mutant (60.1℃). Their activities are 1.30-2.75 times higher than the reported activities of 20G6 and 5F12 mutants. Therefore, the BsLipA-M1 and BsLipA-M2 mutants have significantly improved thermal stability and enzyme activity, which is more conducive to broadening their application range in oil and fat hydrolysis, enzymatic synthesis of biodiesel, or modification of food-grade oils.

The present application relates to a kind of red mud-based heterojunction solid base photocatalyst and its preparation method and application.The preparation method includes: (1) red mud powder is washed with water, then acid washing, drying, to obtain red mud carrier;(2) the red mud carrier is immersed in alkali metal compound solution, drying, to obtain solid base load modification red mud;(3) the solid base load modification red mud is dispersed in semiconductor precursor solution, stirring, drying, to obtain red mud-based heterojunction solid base photocatalyst precursor;(4) the red mud-based heterojunction solid base photocatalyst precursor is calcined, to obtain the red mud-based heterojunction solid base photocatalyst.The present application relies on the natural alkalinity of red mud and the advantage of solid waste resource, combined with the technical characteristics of mild low-consumption photocatalysis, and red mud-based heterojunction solid base photocatalyst adapted to microalgae oil transesterification reaction is prepared, and the efficient preparation of microalgae-based biodiesel under normal temperature and pressure visible light conditions is realized.

The present application relates to the technical field of biodiesel and bio-jet fuel, and discloses a hydrogenation isomerization catalyst, a preparation method and application thereof in production of biodiesel and bio-jet fuel. 2 / g~230m 2 / g, the molar ratio of SiO2 / Al2O3 is 30~110, the total acid amount is 0.9mmol(NH3) / g~2.8mmol(NH3) / g, and the acid amount of weak acid and medium-strong acid with NH3 desorption temperature less than 350 DEG C accounts for 70%~90% of the total acid amount of NH3-TPD. The hydrogenation isomerization catalyst prepared by the present application not only has good hydrogenation isomerization performance, but also has good tolerance to oxygen and water carried by reactants.

The utility model relates to the technical field of energy industry especially, is a kind of biodiesel anti-settling filter device, it not only carries out double filtration to biodiesel, enhances the filtration effect to biodiesel, and can clean the impurity filtered out, avoid the impurity residue on filter screen to influence filtration effect;Including storage mechanism;Still including filter mechanism, vibrating mechanism, stirring mechanism and cleaning mechanism, filter mechanism is installed on storage mechanism and carries out filtration to biodiesel, vibrating mechanism is installed on storage mechanism and drives coarse filter screen vibration, stirring mechanism is installed on vibrating mechanism and carries out stirring to biodiesel, cleaning mechanism is installed on storage mechanism and carries out cleaning to fine filter screen.

This invention relates to a method for preparing and applying a highly dispersed Ni-TON molecular sieve, belonging to the field of molecular sieve material preparation and catalytic application technology. The preparation method achieves high dispersion of nickel species in the TON molecular sieve by optimizing the combination of key process parameters, particularly controlling the introduction of nickel nitrate within a "critical time window" of 10-30 minutes after mixing the potassium fluoride mineralizer with the gel, followed by hydrothermal crystallization, calcination, and nitric acid exchange. This molecular sieve possesses both high crystallinity and highly dispersed hydrogenation active centers, exhibiting high conversion rate (>99%), high selectivity (>87%), and excellent isomerization performance (isomeric / n-alkane ratio >2.5) in the hydrogenation of hydrocarbon-based biodiesel to biojet fuel. The process conditions of this invention are mild and controllable, with good reproducibility, suitable for large-scale production, providing a new strategy for the preparation of high-performance hydroisomerization catalysts.

The use of one or more additives to reduce the filter-blocking tendency of a fuel composition that has a tendency to block filters, wherein the fuel composition comprises a renewable diesel component 5 and a biodiesel component; and wherein one or more additives are selected from (d) a copolymer comprising units of formula (I): 10 (I) and units of formula (II): 15 (II) wherein R is an alkyl group and each of R1 and R2 is an alkyl or alkenyl group having from 6 to 22 carbon atoms; 20 (e) the reaction product of a polycarboxylic acid having at least one tertiary amino group and a primary or secondary amine; and (f) the reaction product of secondary amines and a copolymer of maleic anhydride and an α-olefin.