413 results about "Hydrodeoxygenation" patented technology

Methods and systems for converting a renewable fuel intermediate composition to finished transportation fuel are provided herein. In some examples, a renewable fuel intermediate composition is flowed over a first catalyst in a first reaction zone to generate a saturated, hydrodeoxygenated product. A liquid portion of the renewable fuel intermediate composition may be characterized as having more than about 70 wt % of the oxygen being within ketone groups. The saturated, hydrodeoxygenated product may be flowed over a second fixed-bed catalyst in a second reaction zone to generate a product including the finished transportation fuel.

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 provides a catalyst for preparing phenol through catalytic hydrogenation of guaiacol as well as a preparation method and application of the catalyst. The preparation method of the catalyst comprises the following steps: fully dissolving magnesium nitrate, P123 and urea in deionized water, carrying out hydrothermal reaction, filtering, washing, drying and roasting to obtain an MgO carrier; immersing the MgO carrier in an alkali metal nitrate aqueous solution, drying and roasting to obtain an alkali metal element loaded MgO carrier; the alkali metal is selected from one of Li, Na, K or Cs; and immersing the alkali metal element loaded MgO carrier in a methanol solution of chloroplatinic acid, removing methanol, drying, and then carrying out reduction treatment to obtain the catalyst. The catalyst disclosed by the invention is applied to catalytic hydrodeoxygenation of guaiacol and shows excellent catalytic performance, the hydrodeoxygenation reaction conditions are mild, and the target product phenol can be obtained with high selectivity and high yield.

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 relates to the technical field of compound production equipment, and discloses a multiphase synergistic hydrodeoxygenation reaction device and a reaction method thereof.The multiphase synergistic hydrodeoxygenation reaction device comprises a reaction container, the inner wall of the reaction container is fixedly connected with a distribution disc, and when high-pressure gas-liquid mixed raw materials enter an inlet distributor to flow, the distribution disc is communicated with the distribution disc; in the prior art, more vortexes are possibly formed on the surface of the fixed disc, so that impurities are locally accumulated under the action of the vortexes to cause blockage, raw materials are non-uniformly distributed on the surface of the fixed disc, and the distribution effect of the distribution disc is influenced; meanwhile, the gas and the liquid are centrifugally thrown into the reaction container from the spiral fan blade I under the action of the spiral fan blade I and the spiral fan blade II in the inlet distributor, so that the situation that the liquid is blown to two sides due to upward impact after the high-pressure gas is ejected from the middle part and collides with a fixed baffle plate is avoided; and the wall flow phenomenon is easily caused to influence the uniformity of raw material distribution.

The invention belongs to the technical field of catalysts, and provides Ni-CoO / SiO2 aerogel as well as a preparation method and application thereof. The method comprises the following steps: mixing water, tetraethoxysilane, ethanol and a hydrochloric acid solution, and hydrolyzing to obtain silica sol; the preparation method comprises the following steps: mixing silica sol, a nickel salt solution, a cobalt salt solution and a hydrochloric acid solution, and sequentially carrying out ultrasonic treatment, water bath and freeze drying to obtain SiO2 aerogel containing NiO and CoO; the preparation method comprises the following steps: in a reducing atmosphere, carrying out reduction reaction on SiO2 aerogel containing NiO and CoO to obtain the Ni-CoO / SiO2 aerogel. The Ni-CoO / SiO2 aerogel can realize hydrogen production through water photolysis of CoO, Ni promotes the hydrodeoxygenation process of guaiacol, meanwhile, the greenhouse effect of the porous structure of the SiO2 aerogel provides a high-temperature environment for the reaction process, the reaction is promoted to be continuously and positively carried out, and efficient conversion from guaiacol to phenol under the mild reaction condition is realized.

The invention relates to the technical field of biological aviation kerosene, and discloses a process for preparing biological aviation kerosene from waste grease. The method comprises the following steps: introducing waste oil into a hydrofining reactor, introducing hydrogen, carrying out a hydrodeoxygenation reaction under the catalysis of a hydrogenation catalyst, carrying out a reaction on the obtained hydrodeoxygenated oil in an isomerization pour point depressing reactor, and finally carrying out isomerization hot high-pressure separation treatment, isomerization cold high-pressure separation treatment and rectification tower segmentation to obtain the biological aviation kerosene. The specific surface area of a carbon matrix of the hydrogenation catalyst is large, the void structure is rich, a large number of Ni-Mo-P active catalytic centers can be exposed, precious metals such as platinum and ruthenium do not need to be added, the hydrodeoxygenation reaction efficiency of waste oil and fat is remarkably improved, the mass fraction of branched paraffin and cycloparaffin in biological aviation fuel is high, and the combustion performance is better.

The invention relates to a preparation method of a niobium pentoxide loaded molybdenum disulfide catalyst and application of the niobium pentoxide loaded molybdenum disulfide catalyst in lignin conversion. The preparation method comprises the following steps: dissolving ammonium molybdate heptahydrate and thiourea in distilled water, adding Nb2O5, and adjusting the pH value of the mixture to 0.8-1.1 by using hydrochloric acid; transferring the solution into a stainless steel autoclave for hydrothermal reaction; centrifugally separating to obtain a black precipitate, washing with water and absolute ethyl alcohol, and drying in vacuum overnight; and placing the obtained substance in a high-temperature and high-pressure reaction kettle, screwing the reaction kettle to seal the reaction kettle, discharging gas after introducing H2, discharging air in the device, pressurizing to 3-5 MPa, and reacting to obtain the catalyst Nb2O5-MoS2. The catalyst shows excellent activity of aromatic phenol and ether compound hydrodeoxygenation for aromatic hydrocarbon preparation. The invention provides the catalyst which is low in cost, simple and convenient to prepare and excellent in performance, after ten cycle experiments, the activity of the catalyst is still stable, and the indexes of the conversion rate and the yield are reduced by less than 5%.

The invention discloses a novel catalyst NiW / Ti-USY for hydrodeoxygenation. The novel catalyst comprises a modified molecular sieve carrier, active metal and auxiliary metal, wherein the active metal and the auxiliary metal are loaded on the modified molecular sieve carrier; the active metal is Ni metal; the auxiliary agent metal is W metal; the modified molecular sieve carrier is a Ti-USY carrier obtained by carrying out TiO2 composite modification on a carrier USY; wherein the loading capacity of the NiW metal on the Ti-USY carrier is 10 to 35 weight percent, and the loading capacity of the Ti metal in the Ti-USY carrier is 6 to 12 weight percent. The catalyst has the advantages of high catalytic activity, high selectivity of biological aviation kerosene components (C8-C16), high yield and good stability.

The invention discloses a graphite felt / high-entropy MOF electrode, a lignin-based fuel cell and a method for co-producing aviation fuel components. The graphite felt / high-entropy MOF electrode is obtained by dissolving various soluble metal salts and 2, 5-dihydroxy terephthalic acid in a solvent for hydrothermal reaction and generating high-entropy MOF on the surface of the graphite felt in situ. When the graphite felt / high-entropy MOF electrode is used for assembling the lignin-based liquid flow fuel cell, high-power density output of the lignin-based liquid flow fuel cell and efficient conversion from biomass energy to electric energy are successfully realized. After long-time power generation of the flow battery, lignin macromolecules can be promoted to be efficiently and directionally depolymerized into an aircraft fuel precursor to generate C8-C16 micromolecular substances, the main micromolecular substances are C10-C11, the micromolecular substances can be further subjected to hydrodeoxygenation to prepare aircraft fuel, and the flow battery has very great commercial prospects and utilization values.

The invention provides Ni-Fe / ZrO2 bimetallic nanoparticles as well as a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method comprises the following steps: firstly, preparing ZrO2 loaded with NiO, FeO and Fe2O3 by adopting an impregnation method, and then carrying out reduction treatment by adopting a reducing atmosphere to prepare the Ni-Fe / ZrO2 bimetallic nanoparticles. In the prepared bimetallic nanoparticles, nickel and iron are combined and loaded on zirconium dioxide, so that the Ni and Fe nanoparticles are anchored through interaction of strong metal and a carrier, the catalytic performance is remarkably improved, a multifunctional catalyst is achieved, subcritical water oxidation of Fe, in-situ production of hydrogen and promotion of the hydrodeoxygenation process of cellulose by Ni can be achieved, and the hydrodeoxygenation efficiency of cellulose is improved. Meanwhile, the surface of the ZrO2 carrier has acidic and alkaline sites, so that the ZrO2 carrier can interact with active components with different properties to promote continuous forward proceeding of the reaction, and efficient conversion of cellulose to 2, 5-hexanedione under mild reaction conditions is realized.

The invention relates to the technical field of catalytic materials, in particular to a catalyst and a preparation method and application thereof. The invention provides a catalyst. The catalyst comprises organosilane modified mesoporous silica and nickel-molybdenum bimetallic loaded in the organosilane modified mesoporous silica. Nickel in the catalyst can promote hydrogen activation and hydrogenation, and molybdenum plays a role in catalytic cracking reaction. On the catalyst, the synergistic effect generated by combination of bimetal and acidic sites is more beneficial to efficient HDO reaction (catalytic hydrodeoxygenation reaction). The result of the embodiment shows that when the conversion rate of the model compound guaiacol is 100%, the highest selectivity of the obtained product naphthenic alcohol can reach 50.1%; when the catalyst is applied to the hydrodeoxygenation conversion reaction process of biomass alcoholysis derivative oil, the yield of naphthenic alcohol is greatly increased, and the relative content is increased from 3.5% to 49.8%.

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 invention provides a preparation method, a product and application of an acid site / carrier decoupled metal-acid multifunctional catalyst, and belongs to the technical field of biomass energy utilization. According to the preparation method, a metal active site is provided by non-noble metal Ni, a neutral material h-BN is taken as a carrier, and a Ni element is reduced and loaded on h-BN under an alkaline condition by adopting a liquid phase reduction method, so that the Ni / h-BN catalyst is prepared; and then heteropoly acid is used for providing an acid site, the acid site is loaded on a Ni / h-BN catalyst through an impregnation method, and Ni-HSiW / h-BN is prepared. According to the present invention, by flexibly regulating and controlling the acid site (loaded or unloaded heteropolyacid), the required product can be selectively obtained when the obtained catalyst is used for catalyzing the lignin derivative hydrodeoxygenation reaction, and by regulating and controlling the temperature, the time and other parameters of the hydrodeoxygenation reaction, the high selectivity on the reaction product can be provided.

The invention discloses a production device and method for preparing biological aviation kerosene through a hydrodeoxygenation method, the production device for preparing the biological aviation kerosene through the hydrodeoxygenation method comprises a reaction kettle, a stirring assembly is arranged in the reaction kettle, and the stirring assembly is used for stirring a reaction mixture; the stirring assembly comprises a hollow square shaft, a plurality of hollow stirring blades and a driving assembly, and the hollow square shaft is rotationally arranged at the bottom in the reaction kettle; the invention further discloses a production method for preparing the biological aviation kerosene through the hydrodeoxygenation method. The production method comprises the steps of S1, raw material pretreatment; s2, hydrodeoxygenation reaction; s3, separating a product; and S4, rectification. According to the device, hydrogen exhausted from the exhaust holes is sprayed out in all directions, so that the contact area between the hydrogen and raw materials can be increased, the hydrogen reaction is more sufficient and complete, waste is reduced, and meanwhile, the preparation efficiency of the biological aviation kerosene is also improved.

The invention discloses a preparation method and application of a three-dimensional hierarchical ordered mesoporous zeolite confinement NiCo alloy catalyst, and belongs to the technical field of catalytic upgrading of lignin model compounds. According to the catalyst, a bimetallic active component is formed through metal Ni and Co, a coating confinement is formed on the active component in the process of synthesizing the three-dimensional graded ordered mesoporous 3DZSM-5 zeolite, and the prepared catalyst is small in metal particle size and high in dispersity. The existence of the three-dimensional graded ordered mesopores is beneficial to contact, diffusion and transfer of reactants in pore channels. The catalyst prepared by the preparation method disclosed by the invention is used for preparing 2-methoxy-4-methylphenol by hydrodeoxygenation of vanillin, and shows excellent catalytic performance. Almost no metal is leached in the catalyst circulation process, the subsequent separation is simple and convenient, the cost is low, and industrial production is facilitated.

The present invention relates to a method for catalytic cracking production of biomass liquid fuel, and the method is as follows: Take MCM-48 mesoporous molecular sieve and calcine it in a solution impregnated with cobalt salt and metal borate to obtain a molecular sieve catalyst. Take lignin raw material and sugar raw material, dry them, and then carry out temperature-raising microwave cracking in a cracking reaction fluidized bed. The oil and gas are further catalytically cracked by the molecular sieve catalyst, and the oil liquid is recovered by condensation. The oil liquid, hydrogen-supplying mixed solvent and Ru / C catalyst are subjected to hydrodeoxygenation, and centrifuged for supercritical extraction and upgrading. The material at the top of the extraction tower enters a first-stage separation tower and a second-stage separation tower under reduced pressure for continuous reduced-pressure separation to obtain the finished product of biomass liquid fuel. The modified MCM-48 molecular sieve catalyst catalytically cracks biomass lignin raw material and sugar raw material by a two-step method, strengthens the deoxygenation reaction, and then undergoes supercritical extraction and upgrading and reduced-pressure separation, reducing the reaction temperature and acid value of the biomass liquid fuel, and improving the liquid-gas conversion rate, high-carbon-number oil liquid yield and product calorific value.

The invention discloses a preparation method and application of a catalyst for preparing hydrocarbon liquid fuel through grease hydrodeoxygenation, oxyphilic metal elements of tungsten, molybdenum, zirconium and zinc are introduced, oxyphilic metal salt and nickel salt are fully mixed with a carrier according to different proportions and then subjected to ultrasonic treatment, a solvent is subjected to vacuum rotary evaporation under the room temperature condition, and the catalyst is obtained. The supported nano nickel-based alloy catalyst is prepared by roasting at the temperature of 250-400 DEG C and reducing at the temperature of 650-690 DEG C, activation and breakage of C-O bonds of ester compounds under mild conditions are greatly enhanced, and hydrodeoxygenation conversion of the ester compounds under mild conditions is realized by utilizing a nickel metal center with high hydrogen dissociation activity. In addition, the hydrogenolysis side reaction of the nickel metal center to the liquid hydrocarbon product is inhibited, the excellent catalytic performance is shown, the reaction activity is high, the yield of the hydrocarbon target product is high, and the catalyst stability is good.

Methods and systems for converting a renewable fuel intermediate composition to finished transportation fuel are provided herein. In some examples, a renewable fuel intermediate composition is flowed over a first catalyst in a first reaction zone to generate a saturated, hydrodeoxygenated product. A liquid portion of the renewable fuel intermediate composition may be characterized as having more than about 70 wt % of the oxygen being within ketone groups. The saturated, hydrodeoxygenated product may be flowed over a second fixed-bed catalyst in a second reaction zone to generate a product including the finished transportation fuel.

Systems and methods are provided for production of renewable jet fuel and / or jet fuel blending component fractions. The systems and methods provide for formation of jet boiling range fractions via hydrodeoxygenation and catalytic dewaxing of bio-derived feeds. The systems and methods for reducing or minimizing recycle and / or forming only a jet boiling range product and a lower boiling range product can be facilitated based on selection of a suitable feedstock and / or based on selection of suitable reaction conditions and catalyst for the catalytic dewaxing.

The invention belongs to the technical field of synthesis of 2-methoxy-4-methylphenol, and particularly discloses a bimetallic-based catalyst for synthesizing 2-methoxy-4-methylphenol through vanillin hydrogenation as well as a preparation method and application of the bimetallic-based catalyst. Molybdenum carbide (alpha-MoC) is adopted as a carrier, cobalt and iron are loaded by an impregnation method to obtain the bimetallic-based catalyst, and the bimetallic catalyst can be used for obtaining a 2-methoxy-4-methylphenol product with high added value at high yield by taking vanillin as a raw material under mild reaction conditions. The method is short in synthesis process, low in cost, economical, effective, high in universality, environment-friendly, free of corrosion to equipment and high in product quality. The bimetallic-based catalyst not only has excellent catalytic hydrodeoxygenation performance on vanillin, but also has relatively high selectivity on 2-methoxy-4-methylphenol, and in addition, the bimetallic-based catalyst also has excellent cycle stability, wide market prospect and remarkable economic potential.

The invention discloses a method for preparing sustainable aviation fuel component oil by using a biomass-based derivative, and belongs to the technical field of biological aviation fuel preparation. The method comprises the following steps: carrying out aldol condensation on furfural and 2, 5-hexanedione to increase a carbon chain so as to obtain an oxygen-containing aviation oil precursor; performing pre-hydrogenation on the oxygen-containing aviation oil precursor by using an M1 catalyst to obtain a pre-hydrogenation product; carrying out catalytic hydrodeoxygenation, catalytic hydrocracking and catalytic isomerization on the pre-hydrogenation product by using an M2 catalyst, and fractionating to obtain aviation fuel component oil, the M1 catalyst is characterized in that Ni metal is loaded on a metal oxide carrier; the M2 catalyst is prepared by loading Ni metal on an acidic hierarchical pore molecular sieve carrier. The carbon number of the prepared aviation fuel component is in continuous normal distribution, and the sustainable aviation fuel component oil is prepared by taking common biomass-based platform derivatives as raw materials, so that the method has important significance on promoting green development of the aviation field.

The invention belongs to the technical field of biodiesel and bio-based lubricating oil. The method comprises the following steps: reacting grease, aromatic hydrocarbon and a zeolite molecular sieve catalyst at a certain temperature for a period of time, then distilling and separating to obtain aryl grease, and finally co-producing biodiesel and hydrocarbon lubricating oil components by adopting a hydrodeoxygenation method. The preparation method provided by the invention avoids the use of fossil energy, solves the problem of complex synthesis steps of bio-based lubricating oil, and has important significance on high-value utilization of biomass resources.

The invention provides a method for preparing biological crude oil by promoting hydrothermal liquefaction of pig manure through steel rolling oil sludge, and belongs to the technical field of biomass energy. According to the method for preparing the biological crude oil by promoting the hydrothermal liquefaction of the pig manure through the steel rolling oil sludge, the steel rolling oil sludge serves as a catalyst for the hydrothermal liquefaction reaction of the pig manure, under the subcritical condition, the emulsified structure of the steel rolling oil sludge is destroyed, and fatty acid, water and scrap iron are obtained, the iron scrap can be used as a homogeneous catalyst for hydrothermal liquefaction of organic matters in pig manure, and Fe and Fe3O4 in the iron scrap can be used as a heterogeneous catalyst; in addition, under the subcritical condition, fatty acid can be subjected to thermal cracking to generate H2, iron can also react with subcritical water to generate H2, and H2 can promote hydrodeoxygenation of organic matter and is beneficial to improving the oil quality of biological crude oil; meanwhile, unutilized fatty acid can also be used as a raw material to be converted into biological crude oil, so that the oil yield is further improved.

The invention relates to a low-temperature hydrodeoxygenation catalyst as well as a preparation method and application thereof. The catalyst provided by the invention is suitable for low-temperature removal of alcohols in Fischer-Tropsch synthetic oil, and is also suitable for low-temperature removal of alcohols in other hydrocarbons containing alcohols. The catalyst provided by the invention adopts a phosphorus modified alumina carrier, adopts nickel as a hydrogenation active component, and adopts lanthanum, cerium, cobalt and / or zinc (especially cerium) as a cocatalyst component, and a component loading process adopts a step-by-step impregnation method to load the cocatalyst component and the hydrogenation active component on the carrier in sequence. The catalyst provided by the invention solves the technical problem of sufficient removal of oxygen-containing compounds at low temperature.

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.

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.

An improved process for removing contaminants from low value waste fats and oils for the purpose of hydrodeoxygenation to diesel boiling range hydrocarbons. The method includes removing organically bound contaminants from fat, oil and grease (FOG) by adding water to the contaminated FOG stream, heating the mixture, and mixing to promote the reaction between the water and the FOG. The reacted FOG is then separated from the contaminants. The FOG of the reaction will result in reduced organically bound chlorine contaminants.

The invention discloses a bio-based aviation fuel hydrodeoxygenation isomerization catalyst and a preparation method and application thereof, and belongs to the technical field of preparation of sustainable biological aviation fuel hydrogenation catalysts. The method comprises the following steps: uniformly mixing sodium silicate, ammonium salt and desalted water in a stirring kettle to obtain a colloidal substance A; mixing titanium tetraethoxy, acetic acid, ethanol and desalted water to obtain a colloidal substance B; the preparation method comprises the following steps: dropwise adding phosphoric acid into desalted water, adding pseudo-boehmite and silica sol, mixing and stirring, adding a template agent, crystallizing, cooling, filtering, washing and drying to obtain SAPO-31 raw powder; the preparation method comprises the following steps: stirring and mixing a colloidal substance A, a colloidal substance B and SAPO-31 raw powder, and then filtering, drying, roasting and crushing to obtain a composite carrier; adding the composite carrier into a nickel salt aqueous solution for dipping, and then drying and roasting to obtain the hydrodeoxygenation isomerization catalyst. The catalyst is applied to kettle type slurry bed hydrodeoxygenation and hydroisomerization reactions, and can effectively avoid occurrence of abnormal working conditions such as coking and temperature runaway of the catalyst.

The invention provides a Co-coated ZrC catalyst and a preparation method and application thereof in furfural compound hydrodeoxygenation, and the preparation method of the catalyst comprises the following steps: taking fumaric acid and zircon salt as raw materials, preparing a catalyst precursor Zr-MOF by a solvothermal synthesis method, dipping the precursor by cobalt salt, and performing in-situ high-temperature pyrolysis carbonization reduction to prepare the Co-coated ZrC catalyst. The catalyst is respectively used for preparing 2-methylfuran from furfural through selective hydrodeoxygenation and preparing 2, 5-dimethylfuran from 5-hydroxymethylfurfural through selective hydrodeoxygenation, and target products are obtained at high yield. The catalyst is simple in preparation method, high in activity and selectivity, good in stability, mild in furfural selective hydrodeoxygenation reaction condition and high in product yield, and has obvious industrial production advantages.