215results about "Fatty acid hydrogenation" patented technology

A reactor system includes a ketopyrolysis zone in which a metal oxide catalyst reacts with a lipid feedstock to produce a renewable fuel intermediate composition. The renewable fuel intermediate composition includes a jet fuel fraction in which a non-aromatic cyclic hydrocarbon content exceeds an acyclic isoalkane content. The renewable fuel intermediate composition is hydrotreated to produce a fuel composition that includes a jet fuel component with a freezing point less than −15° C.

The invention discloses a system and a method for producing biological aviation kerosene by using waste oil and belongs to the technical field of biological aviation kerosene preparation. The method comprises the following steps: (1) the waste grease and a magnetic catalyst loaded with ionic liquid are mixed and enter a suspended bed pre-hydrogenation reactor for reaction to obtain a pre-hydrogenation product, a carrier in the magnetic catalyst loaded with the ionic liquid is Fe3O4 magnetic particles coated with a silicon dioxide layer, and the ionic liquid is molybdenum-based ionic liquid; (2) separating the pre-hydrogenation product to obtain a primary hydrogenation product; (3) performing hydrogenation upgrading on the primary hydrogenation product to obtain an upgraded intermediate product; (4) separating the upgrading intermediate product to obtain a secondary hydrogenation upgrading product; and (5) carrying out hydroisomerization reaction on the secondary hydrogenation upgrading product to obtain the biological aviation kerosene. According to the method, the magnetic catalyst loaded with the ionic liquid is adopted to catalyze the waste grease, recycling can be achieved under the action of a magnetic field, the catalytic stability is high, and industrial stable production can be achieved without supplementing the catalyst.

The invention provides a biolipid hydroisomerization catalyst and a preparation method thereof, the biolipid hydroisomerization catalyst comprises a carrier and active components, and the active components comprise Pt, Ce and La. According to the present invention, the synergistic effect between the rare earth metals Ce and La and the noble metal Pt is utilized to optimize the performance of the catalyst, the prepared hydroisomerization catalyst has characteristics of high activity and high stability, unsaturated hydrocarbon and impurities in the bio-based deoxidized oil can be effectively removed so as to generate the high-quality fuel, the hydroisomerization activity of the catalyst is improved, and the hydroisomerization efficiency is improved. The cracking selectivity is reduced, and the different direct proportion of aviation kerosene products is increased.

The utility model discloses a catalytic hydrogenation reactor for treating a biomass raw material with a high acid value and a high iodine value, and belongs to the technical field of oil product hydrogenation. The catalytic hydrogenation reactor comprises a reactor pressure-bearing container, an inner cylinder, an ash discharge port, a feeding assembly, a reaction assembly and a discharging assembly, the inner cylinder is arranged in the reactor pressure-bearing container, the feeding assembly and the reaction assembly are arranged in the inner cylinder, the reaction assembly comprises a ceramic tube bundle internal part, the discharging assembly is arranged above the inner cylinder, and the discharging assembly is arranged above the inner cylinder. The ash discharge port is formed in the center of the bottom of the reactor pressure-bearing container. By arranging the ceramic tube bundle internal part in the catalytic hydrogenation reactor, on one hand, the ceramic tube bundle internal part serves as a reaction assembly and has certain acid corrosion resistance, and on the other hand, the ceramic tube bundle internal part serves as a solid catalyst carrier, selective hydrogenation of high-acid-value and high-iodine-value biomass raw materials is achieved, the iodine value is effectively reduced, and coking of the high-iodine-value biomass raw materials in the reaction process is avoided; in addition, the acid value is maintained as far as possible while the iodine value is reduced, and the solid catalyst and the catalytic hydrogenation reactor are not corroded, so that the stability of the solid catalyst and the yield of the product are improved.

The invention discloses a preparation method and application of an oil-soluble heteropolyacid ionic liquid catalyst. The catalyst is composed of organic cations and inorganic anions, the cations are one of quaternary ammonium, imidazole and pyridine cations containing long-chain alkyl, the anions are heteropolyacid anions, the long-chain alkyl enables the catalyst to have good oil solubility, the catalyst can be efficiently dispersed in the waste grease, heteropolyacid provides active sites, and the catalyst can be used for treating the waste grease. Nano-scale active particles are formed after in-situ vulcanization, and the catalytic hydrogenation effect is achieved. The invention also provides a preparation method of the oil-soluble heteropolyacid ionic liquid catalyst, the catalyst can be prepared from tertiary amine and halogenated hydrocarbon through three-step reaction of alkylation, anion exchange and acid-base neutralization, the preparation process is simple, a highly toxic reagent is avoided, and the cost is low. The catalyst provided by the invention can be used for catalytic hydroisomerization of various waste oils and fats, has the characteristics of high conversion rate, low coking rate and high product calorific value, and has relatively high industrial application potential.

A method can include receiving an oxygenate sample, fractioning the oxygenate sample into one or more fractions, and separating the fractions (e.g. using FAME fractionation, FAEE fractionation, crystallization, solvent extraction, or other similar methods). The fractions can optionally be separated independently. The method can optionally include esterifying carboxylic acids separated from the fractions with glycerol and deodorizing the glycerides.

The present invention relates to a method for reducing deactivation of a hydrotreatment catalyst. The hydrotreatment catalyst is used as a main active catalyst for producing renewable hydrocarbons by hydrotreatment from a renewable feedstock which comprises at least an oxygen containing compound, at least one metal containing compound and at least one phosphorus containing compound as impurities. The method comprising adjusting the metal to phosphorus (M:P) weight ratio of the renewable feedstock to a value within the range from 0.70 to 1.26, measured as elemental metal and elemental phosphorus, subjecting the obtained feedstock to a temperature of from 190 to 400° C. under reducing conditions, thereby forming a solid precipitate comprising at least one metal and phosphorus containing compound, and contacting the obtained liquid renewable feedstock with the main active catalyst, in the presence of hydrogen.

A slurry reactor system including a slurry reactor configured to convert, under slurry hydroconversion conditions, a slurry reactor content flowing upwards and containing a feedstock including one or more of fats, oils and greases, a slurry hydroconversion catalyst and a hydrogen stream to a slurry hydroconversion effluent containing a slurry phase effluent including catalyst particles and a liquid product and a vapor phase effluent including a hydroconversion product, and a separation unit internal to the slurry reactor, the separation unit being configured to separate at least a portion of the vapor phase effluent from the slurry hydroconversion effluent to produce a mixture of vapor and the slurry hydroconversion effluent having a reduced vapor phase content. The separation unit is configured to use a pump to recirculate the mixture of vapor and the slurry hydroconversion effluent flowing downwards in the slurry reactor to be combined with the slurry reactor content.

The present invention provides a hydrogenation dehydration catalyst and a preparation method thereof, the hydrogenation dehydration catalyst is used for preparing C16 and C18 n-alkanes from animal and plant oil, the hydrogenation dehydration catalyst comprises a carrier and active components, the carrier comprises magnesium aluminate spinel, the active components comprise molybdenum and nickel, and the molar ratio of molybdenum to nickel is 85-100: 1. According to the present invention, the magnesium aluminate spinel is adopted as the carrier, the molybdenum and the nickel are adopted as the active components, and the molar ratio of the molybdenum to the nickel is controlled in the range of 85-100: 1, such that the conversion rate is high and the C18 n-alkane selectivity is high when the catalyst is used for preparing the n-alkane from the animal and plant oil.

The invention belongs to the technical field of catalysts, and discloses a catalyst for preparing high-purity oleic acid as well as a preparation method and application of the catalyst. According to the catalyst for preparing the high-purity oleic acid, a SiO2 molecular sieve serves as a carrier, Pd and Pt serve as active components, and the molar ratio of Pd to Pt is 3: 2-4: 1. According to the invention, by controlling the carrier, the active component and respective dosages, the prepared catalyst can perform selective hydrogenation on vegetable oil containing linoleic acid and / or linolenic acid to obtain high-purity oleic acid.

The invention relates to an environment-friendly degradable gear lubricant as well as a preparation method and application thereof, in particular to an environment-friendly degradable gear lubricant which is prepared from the following components in percentage by weight: 50-60% of base oil, 15-25% of an additive, 23-38% of modified castor oil, 5-10% of an antioxidant and 5-8% of a tackifier, the base oil is prepared from pentaerythritol ester, butylene adipate, butylene terephthalate and a catalyst, and the mass ratio of the pentaerythritol ester to the butylene adipate to the butylene terephthalate is (1.2 to 2.5) to (3.1 to 4.5) to (2 to 3). The vegetable oil biological lubricant can ensure environmental friendliness and degradability while realizing lubrication, and has all characteristics required by lubricating oil, including high viscosity index, low volatility and good lubricity.

A low-saturation grease composition and the use thereof. A grease composition, which comprises, based on the total mass thereof, 50-71% of grease, 25-40% of water, and 1-6% of a protein, wherein the grease has a saturation of 20-42%. A grease composition, which comprises: (1) palm oil and shea butter; and (2) liquid grease other than palm oil and shea butter, wherein the grease composition is in a solid state at a normal temperature, and has a saturation of 25-32%. The grease composition can be used for improving the juiciness, adhesiveness and chewiness of vegetarian food and improving the mouthfeel thereof, and is used for reducing water boiling loss and baking loss during cooking, or is used for increasing the food brittleness, reducing the oil precipitation rate in the food storage process, and reducing the stirring time of dough.

The present invention concerns a method for determining a parameter representative of the quality of a composition of natural origin, this parameter making it possible to determine the most appropriate heteroatom removal treatment for processing this composition, in particular with a view to its hydrotreatment for the manufacture of renewable fuels. The invention also concerns a process for reducing the heteroatom content of this type of composition, in particular for manufacturing a renewable fuel.

The present invention addresses the problem of overcoming the weakness of fats and oils for non-trans and non-tempered chocolates, namely, insufficient bloom resistance and less compatibility with cocoa butter under cycling conditions in the medium to high temperature range. This problem of insufficient bloom resistance and less compatibility with cocoa butter under cycling conditions in the medium to high temperature range can be solved by using a fat or oil for chocolates wherein the composition of fatty acids such as lauric acid is adjusted to a specific range and the composition of CN38 to CN46 triglycerides is adjusted to a specific range.

The present invention relates to a method for reducing deactivation of a hydrotreatment catalyst. The hydrotreatment catalyst is used as a main active catalyst for producing renewable hydrocarbons by hydrotreatment from a renewable feedstock which comprises at least an oxygen containing compound, at least one metal containing compound and at least one phosphorus containing compound as impurities. The method comprising adjusting the metal to phosphorus (M:P) weight ratio of the renewable feedstock to a value within the range from 0.70 to 1.26, measured as elemental metal and elemental phosphorus, subjecting the obtained feedstock to a temperature of from 190 to 400° C. under reducing conditions, thereby forming a solid precipitate comprising at least one metal and phosphorus containing compound, and contacting the obtained liquid renewable feedstock with the main active catalyst, in the presence of hydrogen.

The invention discloses a preparation method of a one-step hydrodeoxygenation heterogeneous supported bifunctional catalyst for biological oil and fat. Adding tetraethyl silicate and ethanol into a beaker, stirring at room temperature to obtain a solution I, adding ammonia water and ethanol into the beaker, and stirring at room temperature to obtain a solution II; adding the solution II into the solution I in a room-temperature stirring state, then continuously stirring to form transparent sol, aging, carrying out suction filtration, washing with water, drying and grinding to obtain a silicon dioxide carrier; and dissolving the silicon dioxide and phosphomolybdic acid in deionized water, and carrying out rotary evaporation and vacuum drying to obtain the one-step hydrodeoxygenation heterogeneous supported bifunctional catalyst for the biological oil. The prepared one-step hydrodeoxygenation heterogeneous supported bifunctional catalyst for the biological oil and fat can realize one-step hydrodeoxygenation reaction of the biological oil and fat, the problem that an intermediate product in conventional reaction is easy to crack and the like is avoided, and the catalyst is simple in preparation method and has relatively high industrial application potential.

The present disclosure provides a method of purifying an organic material of biological origin, which includes providing a feedstock containing organic material of biological origin; purifying the feedstock in a pre-treatment step including heating the feedstock in a presence of an adsorbent at a temperature of at least 150° C., to obtain a heat-treated feedstock; filtering the heat-treated feedstock to remove adsorbent and to obtain a purified feedstock; and optionally subjecting the purified feedstock to further processing, wherein the purifying is performed in a cone vessel having a first cross sectional area in an upper part of the vessel which decreases downwards to a second cross sectional area, which is smaller than the first cross sectional area.

The invention relates to the technical field of bio-fuel oil, and discloses a bio-fuel oil preparation system and method.The bio-fuel oil preparation method comprises the steps that a biomass material and methyl alcohol are mixed for a liquefaction reaction, then crude bio-oil is obtained after filtration, centrifugation and fractionation treatment, and then the crude bio-oil is subjected to metal salt removal and filtration treatment to obtain the bio-fuel oil. The method has the advantages that the raw materials are combined with hydrogen to carry out hydrogenation reaction, and finally refined bio-oil is obtained through gas-liquid separation, so that the method is efficient and energy-saving, the recovery of products is simpler, and meanwhile, the recovery of solid residues and the recovery and reuse of methanol can be realized; biomass materials and methanol are rapidly heated and uniformly heated in a microwave liquefaction reactor, at the moment, methanol can reach a supercritical state, and biomass energy can be promoted to be deeply liquefied into crude oil; the biological crude oil and hydrogen are subjected to hydrogenation reaction in the microwave hydrogenation reactor, the biological crude oil to be subjected to hydrogenation reaction is promoted to be heated and is in contact with hydrogen for hydrogenation to generate refined biological oil, the reaction is rapid, and the reaction depth is increased.

The present invention relates to a process of manufacturing a fatty acid-based surfactants comprising the step of converting oil extracted from a Macauba palm having an oil yield in tons per hectare per year of at least 6 t / ha / yr into a fatty acid composition. Further, the present invention relates to fatty acid-based surfactants obtained from the fruits of a Macauba palm having an oil yield in tons per hectare per year of at least 6 t / ha / yr and the use thereof in suitable applications.

A method can include receiving an oxygenate sample, fractioning the oxygenate sample into one or more fractions, and separating the fractions (e.g. using FAME fractionation, FAEE fractionation, crystallization, solvent extraction, or other similar methods). The fractions can optionally be separated independently. The method can optionally include esterifying carboxylic acids separated from the fractions with glycerol and deodorizing the glycerides.

The invention relates to a preparation method of a cobalt oxide modified supported rhodium-carbon catalyst and a treatment method of glycidyl methacrylate byproduct tar. Through the novel cobalt oxide modified rhodium-carbon catalyst, rhodium metal and cobalt metal are supported on a carrier, so that the activity of the catalyst is improved; the catalyst is applied to hydrogenation reaction in glycidyl methacrylate byproduct tar, and the selectivity of converting 2-oxopropionic acid glycidyl ester into 2-hydracrylic acid glycidyl ester reaches 99% or above.

The present invention relates to a method for reducing deactivation of a hydrotreatment catalyst. The hydrotreatment catalyst is used as a main active catalyst for producing renewable hydrocarbons by hydrotreatment from a renewable feedstock which comprises at least an oxygen containing compound, at least one metal containing compound and at least one phosphorus containing compound as impurities. The method comprising adjusting the metal to phosphorus (M:P) weight ratio of the renewable feedstock to a value within the range from 0.70 to 1.26, measured as elemental metal and elemental phosphorus, subjecting the obtained feedstock to a temperature of from 190 to 400 °C under reducing conditions, thereby forming a solid precipitate comprising at least one metal and phosphorus containing compound, and contacting the obtained liquid renewable feedstock with the main active catalyst, in the presence of hydrogen.

The present disclosure provides a versatile process for producing valuable renewable hydrocarbons from triglyceride containing feedstock. The triglyceride containing feedstock is first split to provide a mixture containing fatty acids, glycerol and water, from which a phase separation provides an oily phase, and an aqueous phase. The oily phase containing fatty acids is subjected to fractionation, whereby specific fractions may be refined to products with controlled hydroprocessing. Products may contain paraffinic renewable aviation fuel components, paraffinic renewable base oil, renewable paraffinic diesel fuel components, renewable paraffinic technical fluid, or any combination thereof.

The present application relates to the technical field of catalytic materials, and discloses a halloysite nanotube loaded palladium-platinum bimetallic alloy catalyst and a preparation method thereof, the catalyst comprising heat pretreated halloysite and uniformly dispersed palladium-platinum bimetallic alloy particles, and the mass ratio of palladium, platinum and heat pretreated halloysite being 0.012-0.022:0.012-0.022:1. The preparation method comprises mixing the heat pretreated halloysite with palladium chloride and chloroplatinic acid hexahydrate, adding concentrated ammonia water to adjust the pH to 9-11 to form an ammonia complex; obtaining a precursor through a hydrothermal reaction, and adding sodium borohydride for liquid phase reduction. The bimetallic alloy phase produces geometric and electronic synergistic effects, thereby reducing the reaction activation energy; the ammonia complex ion is chemically bonded with the hydroxyl group of the carrier to prevent the loss of active components in the hydrothermal environment. The catalyst is combined with glycerol to produce hydrogen in situ, thereby avoiding the safety hazards and equipment investment of external high-pressure hydrogenation, and realizing the high-yield conversion of green diesel under extremely low noble metal loading.

This invention relates to the field of renewable oil compositions and especially to the use of renewable oil compositions for production of hydrocarbon compositions, which can be used for traffic fuels and other solutions. Especially, the current invention relates to a composition comprising free fatty acids and triglycerides, in a concentration of free fatty acids from 15 wt-% to 50 wt-% and the rest being predominantly triglycerides. The invention relates also to a method for producing hydrocarbons from a renewable oil feedstock, in which the feedstock comprising free fatty acids from 15 wt-% to 50 wt-%, and the rest being predominantly triglycerides is subjected to a pretreatment process followed by a hydrotreatment process for obtaining hydrocarbons.

This invention discloses a method for treating waste edible oils. The method includes: providing a hydrogenation catalyst, comprising a support and an active metal oxide coated on its surface; mixing the hydrogenation catalyst with a catalytic slurry and waste edible oil to form a slurry hydrogenation bed; and conducting a hydrogenation reaction in the slurry hydrogenation bed under a reducing atmosphere. The method provided by this invention uses a mixed feed of waste edible oil and catalytic slurry for catalytic hydrogenation, which can obtain a distillate oil-liquid phase product with a continuous carbon number distribution and uniform hydrocarbon content, suitable for use as feed to a fixed-bed hydrogenation unit. It effectively avoids problems such as catalyst sintering and deactivation caused by overheating due to concentrated exothermic reactions in the fixed-bed hydrogenation reaction zone caused by excessively high content of a single component, thus ensuring stable operation of the reaction unit. It directly and simultaneously solves two major problems: the difficulty in stably hydrogenating waste edible oils and the high cost of catalytic slurry hydrogenation, and has good application prospects.

The present invention relates to a process for producing fatty acid amides or alkoxylated fatty acid esters, comprising the step of converting oil extracted from macaubay palm having an oil yield in tonnes / hectare / year of at least 6 t / ha / yr into fatty acid amides or alkoxylated fatty acid esters.Furthermore, the present invention relates to fatty acid amides or alkoxylated fatty acid esters obtained from the fruit of macaubay palm having an oil yield in tonnes / hectare / year of at least 6 t / ha / yr and their use in suitable applications.

A method of producing hydrocarbons includes acidifying and extracting fatty acids from a feed solution that includes fatty acid salts using carbon dioxide (CO2); separating CO2 from the extracted fatty acids; recycling at least a portion of the separated CO2 to be used as the extractant; contacting at least a portion of the extracted fatty acids with a ketonization catalyst to produce ketones; contacting at least a portion of the ketones with a hydrodeoxygenation catalyst in the presence of hydrogen to produce n-paraffins. The n-paraffins may be subjected to hydrocarbon refining to produce hydrocarbons suitable for use as a sustainable aviation fuel, a sustainable diesel fuel, or a sustainable marine fuel.

The present invention addresses the problem of providing an oil-in-water emulsion in which the contained amounts of trans fatty acids are sufficiently reduced, but flavors such as milky sensation or a sensation of richness can be strongly felt. The problem can be solved by an oil-in-water emulsion in which a specific triglyceride is contained at a high level in a plant oil or fat even when the contained amounts of trans fatty acids with respect to lipids are at most 2 wt%, the unsaponifiable matter index determined from the fatty acid compositional makeup and the iodine value of oil and fat is at least a specific numeral value, and a diglyceride is contained at a high level.