132 results about "Biofuel" patented technology

The invention provides a fleet route allocation optimization method and system, and the method comprises the steps: firstly obtaining ship data of each ship in a fleet and route data of each route, and taking the minimization of the total usage amount of biofuel of the fleet in a planned period and the minimization of the total economic loss caused by not meeting the maximum deployment number of the routes as targets; the method comprises the following steps: respectively establishing a first objective function and a second objective function under a plurality of constraint conditions which are established by taking a ship total number limit and a fuel consumption limit which are deployed in each ship route every year, a ship route change total number limit of a fleet in any year, and a CII grade standard limit of each ship as constraints; and constructing a multi-objective optimization mathematical model based on the first objective function and the second objective function, calculating the multi-objective optimization mathematical model by adopting a non-dominated sorting genetic algorithm to obtain a Pareto optimal solution set, and selecting a final fleet route allocation scheme according to the Pareto optimal solution set. And dual minimization of the total usage amount and the total economic loss of the biofuel is realized.

The subject invention provides compositions and methods for reducing the carbon footprint of producing biofuels. Microbe-based soil treatment compositions are utilized to reduce greenhouse gas emissions resulting from the agricultural practices of producing feedstock crops.

The invention belongs to the field of biofuel preparation through grease hydrogenation, and provides a catalyst for biofuel preparation through waste grease one-step hydrogenation and a preparation method of the catalyst. The catalyst is a non-supported NixMoyWz-kHY catalyst, and the preparation method of the catalyst comprises the following steps: uniformly mixing a nickel source, a molybdenum source and a tungsten source according to a certain proportion, adding deionized water and a reaction aid ethylene glycol, dissolving, heating, stirring, adding an ammonia water-ethanolamine mixed solution, complexing, steaming until the pH value of the solution is 7-8, and filtering to obtain the catalyst. And adding a certain amount of HY molecular sieve powder, methyl cellulose (MC) and citric acid into the solution, filtering the reaction solution, drying the filter cake at 120 DEG C, performing extrusion molding, and roasting to obtain the catalyst. The catalyst provided by the invention effectively solves the problems of high oxygen content, difficulty in deep isomerization and the like in the waste oil and fat, has the functions of hydrodeoxygenation, cracking and isomerization at the same time, and realizes one-step conversion of the waste oil and fat into biological aviation kerosene and biodiesel. Besides, the non-supported catalyst adopted by the invention has high-activity center density, the problems of aging and shedding of the carrier are not needed to be worried about, and the preparation method of the catalyst is simple, environment-friendly and pollution-free, and meets the requirements of industrial preparation.

A method of capturing and disposing of fats, oil and / or grease (“FOG”) is disclosed. The method includes: providing a porous container formed of a porous fabric, wherein the porous container is filled with an absorbent material capable of absorbing a quantity of the fats, oil, and / or grease through the porous fabric of the porous container; placing the porous container and the absorbent material contained therein in a grease trap; allowing the grease trap to fill up with water and a mixture of fats, oil, and / or grease; removing the fats, oil, and / or grease from the grease trap after a period of time, while the water remains in the grease trap; and transporting the fats, oil, and / or grease.

The application discloses a method for preparing a hydrogenation deoxidation intermediate by using conjugated fatty acids and application thereof, and belongs to the technical field of oil production biofuel. The method comprises the following steps: (1) subjecting conjugated fatty acids and a dienophilic monomer to a Diels-Alder addition reaction to obtain an addition product; and (2) removing unreacted raw materials from the addition product, so that the hydrogenation deoxidation intermediate is obtained. The method breaks the traditional idea of deoxidation first and isomerization later, and instead adopts the idea of "structure modification first and hydrogenation deoxidation later" to prepare the hydrogenation deoxidation intermediate, so that the hydrogenation isomerization process can be omitted, the generation of cracking products is reduced, the content of isomerization products in the biodiesel is significantly improved, and higher-quality biofuel is obtained.

The utility model relates to the technical field of alcohol-based fuel mixing, and discloses an alcohol-based biofuel additive blending and mixing device which comprises a mixing and blending tank body, the upper end of the mixing and blending tank body is symmetrically provided with retarding boxes pairwise, the upper end of each retarding box is fixedly provided with a conical feed port, and the lower end of each retarding box is provided with a feed port. According to the alcohol-based bio-fuel additive feeding device, the two buffer plates which are obliquely symmetrical to each other and slide up and down for speed reduction adjustment are arranged, so that buffering and speed reduction can be conducted on alcohol-based bio-fuel additives fed from the conical feeding port, and the alcohol-based bio-fuel additives fed from the conical feeding port are fed into the buffer plates; the situation that alcohol-based biofuel additives with different chemical properties are not fully mixed due to too fast discharging is avoided, and meanwhile, the cleaning scraping plate tightly attached to the inner side wall of the mixing and blending tank body is arranged, so that the alcohol-based biofuel additives precipitated and adsorbed on the inner wall of the tank body can be scraped in time during mixing and blending.

The invention relates to the technical field of biofuels, and discloses an aviation kerosene biological alternative fuel based on multi-objective optimization, which is characterized in that a comprehensive selection index system comprising density, kinematic viscosity, thermodynamic characteristics (lower calorific value and hydrogen-carbon ratio) and molecular weight is established based on a multi-objective optimization model constructed by a genetic algorithm; the invention discloses a biological fuel formula for replacing RP-3 aviation kerosene by optimizing the design of biological alternative fuel components, the biological alternative fuel is prepared from the following components in parts by volume: 70-80 parts of second-generation biodiesel, 10-15 parts of tetrahydrofuran and 7-15 parts of isopropanol, the components are easy to obtain, the production process is simple, and the biological alternative fuel is suitable for large-scale production. The second-generation biodiesel, tetrahydrofuran and isopropanol are used as raw materials, the obtained biofuel has low kinematic viscosity, the low calorific value reaches 43 MJ / kg or above, the physicochemical property of the biofuel is similar to that of RP-3 aviation kerosene, and the biofuel has good substitutability and wide popularization value.

A method for producing bio-oil from lignin, comprising the following steps: (a) extracting lignin into oligomers for 30 to 90 minutes, preferably 40 to 70 minutes, in the presence of at least one alcohol having 1 to 5 carbon atoms, preferably 1 to 2 carbon atoms, at the boiling point temperature of said alcohol, or, in the case of a mixture of alcohols, at the temperature of a higher boiling point alcohol, thereby obtaining a liquid phase comprising oligomers and at least one alcohol, and a solid phase comprising lignin substantially free of said oligomers; (b) operating under supercritical conditions in the presence of at least one alcohol having 1 to 5 carbon atoms, preferably 1 to 2 carbon atoms, at a temperature of 200°C to 300°C, preferably 220°C to 295°C, and at 40 bar to 170 bar, preferably 50 bar to 150 bar. Under bar pressure, the solid phase containing lignin substantially free of said oligomers obtained in step (a) is depolymerized for 5 to 150 minutes, preferably 10 to 130 minutes, to obtain: - (i) a gas phase; - (ii) a mixture comprising: an oil phase consisting of bio-oil, a liquid phase containing at least one alcohol, and a solid phase containing carbon residues (“char”), the oil phase consisting of bio-oil, and optionally unconverted lignin; (c) the oil phase consisting of bio-oil is recovered from the mixture (ii) obtained in step (b). The bio-oil obtained by the foregoing method can be advantageously used, for example, as an antioxidant or UV stabilizer, particularly as an antioxidant or UV stabilizer in biofuels, which can be used as is or blended with other fuels in automotive or aviation diesel engines. Furthermore, the bio-25 oil obtained by the foregoing method can be advantageously used as an antioxidant in, for example, vegetable oils and animal or plant fats, as bio-feedback materials to slow their rancidity during transport and storage.

The application discloses a method for preparing biofuel by low-temperature dechlorination of waste PVC and coupling biomass co-pyrolysis, which comprises the following steps: drying, crushing and screening waste PVC, and then performing low-temperature dechlorination in an inert atmosphere, wherein the carrier gas is inert gas, the dechlorination temperature is 340-380 DEG C, the dechlorination time is 20-40 min, and dechlorinated PVC is obtained; crushing and drying the dechlorinated PVC, and then mixing the dechlorinated PVC with biomass at a mass ratio of 0.1-10:1, and then heating and pyrolyzing at 500-700 DEG C for 20-40 min to obtain biofuel. The method achieves good dechlorination effect through step-by-step pyrolysis, and improves the quality of biofuel; the method has a simple process flow, does not need to add any catalyst and adsorbent, and has a good industrial application prospect.

The utility model relates to the technical field of cement plant kilns, and provides a biomass fuel auxiliary scattering and discharging device which comprises a hopper and a frame, a driving piece is arranged on the outer surface of the hopper, and the inner wall of the hopper is rotationally connected with a first scattering roller, a second scattering roller and a third scattering roller. Linkage pieces are arranged among the first scattering roller, the second scattering roller and the third scattering roller, and scattering cutters are fixedly connected to the surfaces of the first scattering roller, the second scattering roller and the third scattering roller. After the biofuel enters the hopper, a motor drives a first scattering roller to rotate through a speed reducer, a first synchronous wheel drives a second synchronous wheel and a second scattering roller to rotate through a first synchronous belt, and the first synchronous wheel drives a third synchronous wheel and a third scattering roller to rotate through a second synchronous belt, so that a scattering cutter rotates; and in addition, a vibration motor is combined, so that when the hopper is vibrated, the biofuel is convenient to discharge.

System (1) for biofuel storage and having: a tank (2) configured to contain the biofuel; a thermal conditioning unit (3) configured to maintain the biofuel that is inside the tank (2) at a desired temperature; a delivery unit (6) configured to draw biofuel that is inside the tank (2) to supply the biofuel to a tank of an external user device; an atmosphere conditioning unit (4) configured to maintain inside the tank (2) a controlled atmosphere; and an additivation unit (5) configured to add at least one additive to the biofuel that is inside the tank (2).

This utility model relates to the field of biofuel pellet transfer and transportation technology, and discloses a biofuel pellet transfer and transportation structure, including a box body with a lid on the top. A rubber pad is fixedly connected inside the box body, and a connecting component is provided on the outer wall of the box body. An opening and closing component is provided inside the box body. The connecting component includes a connecting block and a groove formed inside the box body. The side wall of the connecting block is fixedly connected to the outer wall of the box body, and the connecting block and the groove are fitted together. A slot is formed inside the connecting block. In this utility model, by inserting the connecting blocks of the same side wall of the box body into the groove, the outer wall of the connecting block will compress the trapezoidal block, causing the trapezoidal block to drive the sliding plate to compress the spring. When the connecting block is fully inserted, the spring releases its elastic potential energy, causing the trapezoidal block to lock into the slot. This solves the problem of relative sliding, displacement, or even separation of multiple boxes during transportation, improving the integrity and stability of the transportation structure.

The present application relates to coal gangue treatment technical field, provide a kind of coal gangue-containing biofuel particle and its preparation method and application.The biofuel particle provided by the present application includes: coal gangue powder 60~62%;14~15% of oil-stained mixture;High molecular waste powder 24~26%;The oil-stained mixture is waste engine oil and / or oil-stained material;The oil-stained material is obtained by crushing and drying in turn from swill.The oil-stained mixture used in the present application is rich in oil and fat, with high volatile matter, easy to ignite, coal gangue and waste tires and / or waste plastic bottles have high fixed carbon content, long burning time, so that the biofuel particle of the present application has high calorific value, stable combustion, can be used as alternative fuel to alleviate the problem of traditional fossil fuel shortage.The present application uses catering leftovers swill, waste tires and / or waste plastic bottles and coal gangue powder, to prepare biofuel particles, which solves the various hazards caused by long-term storage of coal gangue.

The invention belongs to the technical field of fuel additives and clean energy. The invention provides a fuel oil additive, which is prepared from 40 to 60 parts of fatty acid ester, 10 to 20 parts of alcohol ether compounds, 1 to 3 parts of nanometer oxides, 2 to 4 parts of surfactants, 1 to 2 parts of oxidation stabilizers, 2 to 3 parts of sodium benzoate, 1 to 2 parts of 2, 6-dimethyl pyridine, 0.5 to 1 part of metal organic catalytic combustion improvers and 20 to 30 parts of solvent oil. The fuel additive can significantly improve the fuel combustion efficiency, reduce the fuel consumption, reduce the emission of CO, HC, NOx and soot, and improve the combustion stability and storage performance. The additive selects part of bio-based raw materials, has the characteristics of energy conservation, emission reduction, greenness and low carbon, is suitable for the field of combustion-supporting modification of gasoline, diesel oil and biofuel, and has good environmental benefits and application prospects.

A method of hydrogenation includes contacting a catalyst, including rhodium nanoparticles in an amount of 0.9 percent by weight (wt. %) to 1.1 wt. % based on the total weight of the catalyst supported on alumina, with furfural in the presence of ethanol to form a reaction mixture. The method further includes heating the reaction mixture at a pressure, at a temperature, and for a time, in a hydrogen gas atmosphere to form a hydrogenated product including furfuryl ethyl ether. At least 99 wt. % of the furfural is reacted to form the furfuryl ethyl ether and the furfuryl ethyl ether is formed with at least a 99 wt. % selectivity.

The present invention relates to an alternative two-stroke reciprocating internal combustion engine and power system thereof which eliminates the intake and compression phases of four-stroke Otto engines, and injects the fuel and the oxidising agent at high pressure directly into the combustion chamber or a prechamber at approximately the moment when the piston is at the top dead centre (TDC), using oxygen and / or air as the oxidising agent and hydrogen-based fuels, synthetic fuels, biofuels, alcohols, natural gas and mixtures thereof. At the same time, a spark is applied or combustion is produced by self-ignition, and expansion occurs until the piston reaches the bottom dead centre (BDC). The piston then starts to rise, the mechanically or electrically actuated exhaust valve opens and exhaust is discharged until the TDC is reached again, thereby repeating the cycle.

A multilayer tubular structure (MLT) for the transport of fluids is described. The MLT from the outside inwards has at least one barrier layer and at least one inner layer located below the barrier layer. The inner layer, or all the layers contain on average at most 1.5% of plasticizer relative to the total weight of the composition of each layer or to the total weight of all the compositions of the layers. The inner layer is predominantly made of at least one polyamide having more than 75% aliphatic units. The aliphatic polyamide has a mean number of carbon atoms per nitrogen atom selected from the following: A: from 4 to 8.5; B: from 7 to 10; C: from 9 to 18; with the proviso that when the inner layer comprises at least three polyamides, at least one of the polyamides A, B and C is excluded.

The present invention relates to an industrial process for the treatment of used filtration earths in the vegetable fats and biofuels sector, to recover fats, earths and other valuable components. Thus, the process of the invention allows the recovery of fats, without the use of hydrocarbons as solvents and of the lesser components found in the earths, as well as the subsequent use of the earths.

A method for upgrading a biofuel stream is disclosed. The method includes reacting the biofuel stream with hydrogen in a reactor in the presence of a catalyst to produce a upgraded biofuel stream. The upgraded biofuel stream is fed into an FCC unit, a hydrotreating unit, or a reforming unit to produce an intermediate blend or a fuel stream. A fuel stream can be extracted from the upgraded biofuel stream. The catalyst can be separated and recycled back to the reactor. The upgraded biofuel stream can be used directly to produce an intermediate blend or fuel. A fuel stream can be extracted from the upgraded biofuel stream.

The invention provides a biofuel preparation device and method, the biofuel preparation device comprises a multifunctional hydrogenation reactor, a suspended bed reaction zone, a fluidized bed reaction zone and a gas-liquid separation zone are integrally arranged in a shell of the multifunctional hydrogenation reactor from bottom to top, and the suspended bed reaction zone is provided with a homogeneous slurry inlet and a lower liquid product outlet; a first reaction zone and a second reaction zone are arranged in the fluidized bed reaction zone; the first reaction zone and the second reaction zone are respectively provided with a microsphere catalyst feeding port, a microsphere catalyst discharging port and a hydrogen inlet; the gas-liquid separation area is provided with a gas outlet and an upper liquid product outlet; the gas outlet is connected with a hydrogen circulating system; and the microspherical catalyst outlet and the microspherical catalyst inlet are used for connecting a catalyst regeneration system. According to the biofuel preparation device provided by the invention, the whole hydro-conversion process from raw material pretreatment to deep refining to product separation is highly integrated and completed in one reactor.

The present application belongs to the field of heterogeneous catalysis and material synthesis, and relates to a hollow ceramic fibrous iron-based catalyst for preparing biofuel from synthesis gas, a preparation method and application thereof. The catalyst is prepared by a coaxial electrospinning process, with polyborosilazane as a shell layer, polymethyl methacrylate, polyvinylpyrrolidone and acetylacetone iron as a core layer, and through spinning, solidification, gradient temperature pyrolysis and reduction steps, a hollow ceramic fibrous iron-based catalyst is prepared. The shell layer of the catalyst is converted into a high-strength and high-temperature stable SiBCN ceramic carrier, the core layer is pyrolyzed to form a hollow cavity and in-situ load high-dispersion iron active species, and the catalyst has good mechanical strength, high hydrothermal stability and excellent catalytic activity. The application of the catalyst in a continuous flow fixed bed reactor for preparing biofuel from synthesis gas is suitable for the synthesis of sustainable aviation fuel and other biofuels.

The present technology relates to biofuels, and more particularly, to biomass-based diesel from olefin oligomers. Diesel fuels with cetane number of 49 or greater are prepared by blending hydrocarbons produced by olefin oligomerization with renewable diesel, resulting in a blended fuel that has a lower cloud point than the cloud point of the renewable diesel. A different aspect relates to an integrated process for lipid HDO and olefin oligomerization wherein the propane coproduct of lipid HDO is subjected to dehydrogenation to produce a vapor stream having propylene and hydrogen. The propylene is subsequently oligomerized to iso-olefins and the iso-olefins are combined with the lipid feed for hydrogenation in the HDO reactor.

The “Industrial Digestive System” encapsulates a novel paradigm in waste management and resource recovery, bridging the gap between sophisticated computational intelligence and industrial automation. The hardware component replicates the natural digestive system's efficiency in processing a diverse range of inputs, including municipal and industrial waste, transforming them into valuable outputs like biofuels, chemicals, and advanced composite / conglomerate materials. This process is achieved through a series of mechanized operations. Complementing the hardware, the software facet of the invention is rooted in advanced machine learning and optimization algorithms that optimize multivariable functions for the most efficient conversion of input to resources, orchestrating the transformation from varied waste streams, elements, and molecules into solid, liquid, and gaseous outputs. The result is an automated, intelligent manufacturing machine that enhances product quality and operational efficacy. “The Industrial Digestive System” can be seen as a new branch of cybernetics, a cyber-physical system inspired by nature.

The application belongs to the field of heterogeneous catalysis and material synthesis, and discloses a lotus-shaped ceramic fiber iron-ruthenium-based catalyst for synthesizing biofuel as well as a preparation method and application thereof. The catalyst is prepared by using a coaxial electrospinning process, taking polysilazane, an iron source and a spinning aid as a shell spinning solution, and taking a mixture containing polysilazane, an iron source, a ruthenium source, a pore-forming agent and a spinning aid as a core spinning solution, to obtain a lotus-shaped ceramic fiber precursor containing iron-ruthenium. After the precursor is subjected to stepwise heating and solidification, inert atmosphere pyrolysis and hydrogen reduction, the lotus-shaped ceramic fiber iron-ruthenium-based catalyst is formed. The catalyst has excellent mechanical strength, high hydrothermal stability and good reaction mass transfer performance, and is suitable for preparing biofuel from syngas in a fixed bed reactor.

The invention relates to the technical field of sewage treatment and biological energy, and particularly discloses a method for converting sewage into biofuel for power generation. According to the method, a multi-factor synergistic system containing an inducing factor, a phagocytosis factor and a powdered sugar factor is generated through photosynthetic induction, the inducing factor destroys harmful microorganisms, the phagocytosis factor fixes radioactive substances, germs and viruses, and the powdered sugar factor serves as a carbon value locking precursor; organic pollutants are directionally converted into alcohol clean energy carriers by utilizing a multi-factor synergistic system, and meanwhile, fixed capture of the pollutants is completed; the carbon value is locked by a carbon value locking agent to generate a fixed carbon mixture, and the fixed carbon mixture is dehydrated and dried to obtain the high-purity biochar fuel. Unification of harmless treatment and energy utilization of the radioactive sewage is realized, and the limitation that the radioactive sewage cannot be treated in the traditional technology is broken through.

System (1) for supplying of biofuel to an internal combustion engine (2) and presenting a main tank (5) containing biofuel an auxiliary tank (6) containing fuel from petroleum a fuel hydraulic circuit (13) configured to supply to the internal combustion engine (2) the biofuel contained in the main tank (5) or the fuel from petroleum contained in the auxiliary tank (6) a heating hydraulic circuit (7) within which a heating liquid flows intended to heat the biofuel and provided with a first heat exchanger (9) arranged inside the main tank (5) and a heating device (8) that is completely independent and separated from the internal combustion engine (2), connected to the heating hydraulic circuit (7) and configured to heat the heating liquid.

The utility model provides a kind of underwater liquid oxygen gas explosion fracturer, including fracturer, liquid injection pipe, exhaust pipe, electric ignition device and biomass fuel core body, fracturer is equipped with biomass fuel core body, the material of fracturer is high molecule, high density polyethylene and nylon 12 thermoplastic material, fracturer is equipped with two and above pipe cap, fracturer has waterproof seal, electric ignition device is equipped with electric ignition head and electric ignition lead, fracturer structure uses two pipe caps, wherein pipe cap and liquid injection hole correspond with fracturer, operability is extremely strong, the fracturer of welding seal assembly completion is safe and reliable, it is a kind of simple and easy to use, reliable and efficient, economic and applicable underwater liquid oxygen gas explosion fracturer.

The application discloses a method for preparing biofuel by in-situ hydrogen-catalytic upgrading of sludge hydrothermal crude oil, and relates to the field of sludge resource treatment. The method for preparing biofuel by in-situ hydrogen-catalytic upgrading of sludge hydrothermal crude oil provided by the application adds long-chain alkane into the sludge hydrothermal crude oil to adjust the viscosity, so that the sludge hydrothermal crude oil can be fully mixed with liquid hydrogen-donor reagent and hydrogenation deoxidization upgrading reaction can be carried out. However, both the long-chain alkane and the liquid hydrogen-donor reagent can affect the viscosity of the biofuel obtained by upgrading the sludge hydrothermal crude oil and can affect the calorific value of the biofuel, so it is necessary to adjust the mass ratio between the sludge hydrothermal crude oil and the two reagents to be sludge hydrothermal crude oil: hydrogen-donor reagent: long-chain alkane = 1: (1-10): (1-20).

The application provides a nickel-based molecular sieve hydrocracking and isomerization catalyst and a preparation method and application thereof, and relates to the technical field of biofuel production and molecular sieve catalyst preparation. The nickel-based molecular sieve hydrocracking and isomerization catalyst comprises 30-80% of MCM-22 molecular sieve, 15-45% of nickel metal element and gamma-Al2O3. The nickel-based molecular sieve catalyst has good isomerization and cracking performance and high stability.

The invention describes a method in which the steps of pretreatment, gasification, Fischer-Tropsch synthesis, water electrolysis and conversion of carbon dioxide to hydrogen (RWGS reaction) are combined to optimal effect, making it possible to achieve improved production yields and better energy and economic performance (energy efficiency, production cost) while complying with environmental constraints, such as greenhouse gas emissions, to which increasingly lower thresholds apply.