605results about "Bio-feedstock" patented technology

A reactor system includes a reactor that treats a lipid feedstock using a metal oxide catalyst to produce a treated stream comprising a bio-oil. The metal oxide catalyst includes catalyst particles having a diameter of 0.01 to 0.5 mm. The metal oxide catalyst can comprise calcium on alumina. The bio-oil has an increased proportion of transportation fuels relative to other techniques for processing lipid feedstocks.

A process is provided for upgrading low value lipid feedstocks for refinery processing. The process includes (a) treating a lipid feedstock comprising at least one fatty acid with a metal oxide catalyst on an oxide support under treating conditions to produce a treated stream, wherein the treating conditions include a temperature in a range of from 400° C. to 700° C.; a pressure in a range of from 0 to 10 MPa; and a liquid hourly space velocity in a range of from 0.1 to 10 h−1; and (b) fractionating the treated stream to obtain a gaseous fraction and a liquid fraction comprising a bio-oil; wherein the bio-oil has a lower content of oxygen and impurities as compared to the lipid feedstock.

Systems and methods are provided for production of renewable jet fuel and / or jet fuel blending component fractions using a single stage reaction system. Although only a single separation stage is used, the systems and methods can reduce or minimize the volume of feedstock that is exposed to hydrocracking conditions while still producing a jet boiling range fraction having beneficial cold flow properties.

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.

A process for improving yield of kerosene and / or diesel from a renewable feedstock involves hydrotreating a renewable feedstock and hydroisomerizing the hydrotreated liquid. The isomerized effluent is separated to produce an offgas stream, at least one fuel stream having a desired boiling point range, and a heavy fraction having a boiling point greater than the desired boiling point range. The heavy fraction is passed to a hydrocracking zone to produce a hydrocracked effluent. The hydro-cracked effluent is passed to the hydroisomerization zone.

Some examples herein provide a method of processing a feedstock. The feedstock may be flowed into a reactor. A catalyst may be flowed into the reactor. Within the reactor, the feedstock may be converted over the catalyst, at an average reaction temperature, to a product stream. The product stream may be withdrawn from the reactor. A stream of the catalyst may be withdrawn from the reactor. Said stream of the catalyst may be heated to a temperature above the average reaction temperature without exposing the catalyst to any air or other oxidants. The heated stream of catalyst may be returned to the reactor at a temperature higher than the reaction temperature, to obtain the average reaction temperature within the reactor.

The application provides a continuous hydrogenation-isomerization method capable of meeting the treatment requirements of biological oils, especially waste oils, using a homogeneous hydrogenation process with strong adaptability to raw materials as a raw material pretreatment process, and matching a high-activity nanometer transition metal sulfide catalyst. On this basis, a catalytic distillation process is used for selective cracking of long-chain alkanes to improve the yield of medium and long-chain alkanes; an ultramicro flow hydrogen gas mixer and a reduced non-noble metal hydrogenation-isomerization catalyst are used to reduce the hydrogen / oil ratio and the energy consumption of the circulating hydrogen system, and to reduce the production cost of the catalyst, so as to finally realize efficient and low-carbon conversion of waste oils, and low-cost and high-selectivity preparation of biological aviation kerosene.

Disclosed are a fluidized bed separation method and device for methanol-to-olefins quenched water. The method may subject quenched water to liquid-solid separation via a micro-cyclone separator. The method may also subject clear liquid from the micro-cyclone separator to a secondary separation via a fluidized bed separator, then sending the same to an olefin separation device, then recovering some waste heat of the quenched water, and then returning the same to a quenching tower after performing heat exchange. The method may also regenerate a separation medium by reversely feeding stripping tower purified water or quenched water, so as to release catalyst particles absorbed by the separation medium. The method may also send a catalyst slurry concentrated by the micro-cyclone separator and the fluidized bed separator to a filter-press unit for filter-press dehydration, so as to recover a catalyst.

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.

A composition having a recycle content value is obtained by reacting a recycle content feedstock to make a recycle content alpha olefin or by deducting from a recycle inventory a recycle content value applied to an alpha olefin composition. At least a portion of the recycle content value in the feedstock or in an allotment obtained by an alpha olefin manufacturer has its origin in recycled waste and / or pyrolysis of recycled waste and / or in thermal steam cracking of recycle content pyoil.

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 invention relates to the technical field of aviation fuel preparation, and particularly discloses a device and method for preparing sustainable aviation fuel from waste grease. The device comprises a hydrogenation reactor and a smoke exhaust pipe, and a first cleaning device is arranged in the smoke exhaust pipe; the filter plate is in sliding fit with the interior of the smoke exhaust pipe and used for cleaning impurities on the inner wall of the smoke exhaust pipe, the driving mechanism is used for driving the filter plate to slide, the filter plate comprises a fixed part and an elastic part, the elastic part is made of an elastic material, and an expansion pipe communicated with the smoke exhaust pipe is arranged at the end, away from the hydrogenation reactor, of the smoke exhaust pipe. The size of the expansion pipe is larger than that of the smoke exhaust pipe, a second cleaning device used for cleaning impurities on the filter plate is arranged in the smoke exhaust pipe, in the initial state, the elastic part is bent, and when the driving mechanism drives the filter plate to move to the expansion pipe, the elastic part stretches and drives the second cleaning device to clean the two side faces of the filter plate; the device has the effect of improving the discharging efficiency of high-temperature flue gas.

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.

A process for preparing an olefin stream for oligomerization includes fractionating the olefin stream to provide a light gas stream and an olefin-rich stream. Oxygenates are absorbed from the olefin-rich stream into a water wash stream to provide an oxygenate-rich water wash stream and a washed olefin stream. The washed olefin stream can then be oligomerized.

The present disclosure provides a process for upgrading solid biomass feedstocks into more useable products. The process includes introducing a solid biomass feedstock, a renewable liquid carrier, a slurry hydrocracking catalyst to a slurry hydrocracking zone in the presence of hydrogen and under slurry hydrocracking conditions to produce a slurry hydrocracking effluent comprising lighter hydrocarbonaceous products.

The invention refers to the method for producing gasolines or aromatic compound concentrates, where three streams are used as feedstock, one of which includes hydrocarbon fraction, the second stream includes oxygenate, the third stream includes olefin-containing fraction with one or more olefins selected from the group consisting of ethylene, propylene, normal butylenes, isobutylene, in total from 10 to 50 wt %, and where three reaction zones filled with zeolite catalyst are used, with distribution of hydrocarbon fraction and oxygenate to the first reaction zone, and with olefin-containing fraction distributed over the three reaction zones, with the third stream mass fraction distributed to the final reaction zone higher than the mass fraction of the third stream distributed to each of the previous reaction zones. This method allows to increase the yield of C5+ hydrocarbons, enhance n-hexane and n-heptane conversion, reduce benzene content in the product, avoid recycling of gaseous products and decrease consumption of oxygenates. 1 independent claim and 35 dependent claims in the formula, 12 examples, 7 tables.

The present application belongs to the technical field of biological oil catalytic hydrogenation, and particularly relates to a bio-based oil-soluble molybdenum catalyst, a preparation method and application thereof. The preparation method of the bio-based oil-soluble molybdenum catalyst provided by the present application comprises: mixing a molybdenum source, a bio-based linear organic acid with a carbon atom number of 16 or more and an additive, heating and reacting, and separating to obtain the bio-based oil-soluble molybdenum catalyst; the additive is selected from at least one of tetrahydro naphthalene and decahydro naphthalene. The bio-based oil-soluble molybdenum catalyst green material obtained by the present application has optimal activity and high dispersibility when used, can realize more sufficient mixing with raw materials, forms nano high-dispersed molybdenum sulfide through sulfuration, and realizes high-efficiency hydrogenation refining of oil products through the joint action of hydrogen and sulfur, while reducing the sulfur, oxygen and metal residues in the product oil.

The present invention relates to a zeolitic material having an AEI-type framework structure comprising SiO2, Al2O3 and B2O3, wherein the Al:B molar ratio of the zeolitic material, is comprised in the range of from 3 to 500, and wherein the zeolitic material displays an Si:(Al+B) molar ratio of the zeolitic material, which is comprised in the range of from 2 to 11. The present invention also relates to a process for the preparation of the zeolitic material according to the present invention, to a process for the treatment of NOx by selective catalytic reduction and to an apparatus for the treatment of a gas stream containing NOx, as well as to the use of a zeolitic material according to the present invention.

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 relates to a method and device for preparing low-carbon olefins, and the method comprises the following steps: S1, contacting raw oil with a catalytic conversion catalyst in a catalytic conversion reactor for catalytic conversion reaction to obtain a catalytic conversion reaction product; s2, separating the catalytic conversion reaction product to obtain ethylene and propylene as well as a first circulating olefin flow containing butene and / or a second circulating olefin flow containing C5 + olefin; s3, enabling the olefin material to enter an etherification unit, and contacting the olefin material with an alcohol raw material under an etherification condition to obtain a circulating ether material and etherified olefin; and S4, enabling at least one part of etherified olefin to enter an isomerization unit, and carrying out isomerization reaction in the presence of an isomerization catalyst to obtain isomerized olefin. According to the method disclosed by the invention, the conversion of ethers into low-carbon olefins can be realized, the yield and selectivity of ethylene and propylene are improved, the yield of methane is reduced, the content of methanol in the product is reduced to the greatest extent, and the conversion of low-cost methanol into low-carbon olefins is realized.

Disclosed herein are methods and systems for producing hydrocarbon products through reactor platforms utilizing a catalyst suspended in the reacting fluids, where the feedstock to the reactor may be a renewable feedstock, circular feedstock, and / or a blend of renewable and circular feedstocks. The disclosed methods and processes include a recycle pump system within the ebullated bed reactor vessel. This internal recycle dilutes olefins, thereby mitigating explosive olefin hydrogenation without limiting the flow of fresh feedstock to the ebullated bed reactor. The disclosed methods and processes include catalyst recovery systems for recovering the suspended catalyst and returning it to the reactor feed.

To provide a reforming catalyst and a process for reforming methane and / or other hydrocarbons to produce a synthesis gas product comprising H2 and CO, with further downstream conversion to liquid hydrocarbons.SOLUTION: A process for producing C4+ hydrocarbons comprises the steps of: (a) bringing a gaseous mixture comprising methane and an oxidant into contact with a reforming catalyst in a reforming stage to produce a synthesis gas product; (b) converting H2 and CO in the synthesis gas product into hydrocarbons containing the C4+ hydrocarbons, which are supplied as Fischer-Tropsch (FT) products to a Fischer-Tropsch (FT) reactor; and (c) supplying the FT product containing the C4+ hydrocarbons to a finishing reactor to convert at least about 75% of the wax fraction's normal C20+ hydrocarbons into C4-C19 hydrocarbons.SELECTED DRAWING: Figure 3

The present technology provides compositions that include at least about 98 weight percent ("wt%") n-paraffins which, among other surprising features, may be suitable for use as a diesel fuel, an aviation fuel, a jet fuel blendstock, a blendstock to reduce the cloud point of a diesel fuel, a fuel for portable heaters, and / or as a charcoal lighter fluid. The composition includes at least about 98 wt% C7-C12 n-paraffins, where at least about 10 wt% of composition includes n-decane, at least about 20 wt% of the composition includes n-dodecane, and at least about 75 wt% of the composition includes even carbon number paraffins. The composition also includes less about 0.1 wt% oxygenates and less than about 0.1 wt % aromatics. The composition may be produced by a process that includes hydrotreating a biorenewable feedstock comprising at least one of palm kernel oil, coconut oil, babassu oil, microbial oil, or algal oil.

Provided herein are renewable hydrocarbon compositions comprising n-paraffins and isoparaffins wherein the total amount of any C8-C16 isoparaffins is from 50 to 94 wt% of the total weight of the hydrocarbon composition, the hydrocarbon composition has a kinematic viscosity of from 3.7 to 8 mm2 / s at-20 DEG C, and the weighted average carbon number of the hydrocarbons in the hydrocarbon composition is from 12.1 to 14.2.

The application relates to a method for producing jet fuel from oil and fat raw materials, wherein the oil and fat raw materials are reacted with a hydrotreating catalyst in a hydrotreating reaction zone, the obtained liquid hydrocarbons are introduced into a first hydroisomerization reaction zone, an optional second hydroisomerization reaction zone is arranged, the obtained diesel oil fraction is recycled into the first hydroisomerization reaction zone or introduced into the second hydroisomerization reaction zone for reaction, and the reaction effluent is separated to obtain jet fuel. The application can produce high-quality biological jet fuel at a high yield.

The present invention relates to a nitrogen-doped carbon-wrapped nickel catalyst for synthesis of higher alcohols by assembly of bioethanol and a preparation method therefor. The preparation method includes the following steps: S1, subjecting a soluble nickel salt and polyacrylamide to stirring with water, completely dissolving and then drying to obtain a precursor, where a molar ratio of the soluble nickel salt to polyacrylamide is 1:(0.5-8); and S2, subjecting the precursor to pyrolysis in an inert atmosphere at 300° C.-800° C. for 1-6 hours to obtain the nitrogen-doped carbon-wrapped nickel catalyst. The catalyst prepared by the method of the present invention has an active phase with high dispersity which enables synthesis of higher alcohols by efficient assembly of small molecules, and has relatively high stability which can still maintain high conversion rate and high yield for organic phase after 10 times of repeated use.

The present invention discloses a method for treating a feedstock originating from a renewable source, the method comprising: a) a step of hydrotreating the feedstock in the presence of at least one fixed-bed catalyst, the catalyst comprising a hydrogenating function and an oxide support; b) a step of hydroisomerising at least one portion, and preferably all, of the hydrocarbon liquid effluent resulting from step a) in the presence of a bifunctional fixed-bed hydroisomerisation catalyst, the catalyst comprising a sulphide phase of at least one metal from group VIII in combination with at least one metal from group VIB of the periodic table and a support comprising a BEA-structure zeolite alone or mixed with a FAU-structure zeolite and at least one binder; and c) a step of fractionating the effluent resulting from step b) to obtain at least one gas oil fraction.

The application discloses a preparation method of MTO catalyst. The method comprises the following steps: a) treating a phosphosilicate aluminosilicate molecular sieve in a titanium acid ester-containing alcohol solution, and drying to obtain a modified molecular sieve; b) mixing the modified molecular sieve obtained in the step a), a liquid medium, a matrix material, a structure reinforcing material and a binder to form a suspension; the structure reinforcing material is ceramic fiber with a diameter of 2-6 microns and a length-diameter ratio of 1-15; c) high-speed shearing the suspension obtained in the step b), and spray drying to obtain a microsphere catalyst; and d) calcining the microsphere catalyst obtained in the step c) to obtain a finished catalyst. The catalyst solves the problems of poor catalytic performance and high abrasion index of the fluidized bed catalyst in the prior art.

The present invention provides a method for producing biodiesel fuel containing saturated hydrocarbons as a main component under relatively mild conditions using vegetable oils or animal fats as a raw material. [Solution] This is a method for producing biodiesel fuel from vegetable oils or animal fats, comprising a decarboxylation step in which carbon dioxide is removed from ester groups in the vegetable oils or animal fats using a decarboxylation catalyst to produce hydrocarbons, and a hydrogenation step in which the resulting hydrocarbons are hydrogenated using a hydrogenation catalyst to produce diesel fuel consisting of saturated hydrocarbons, wherein the decarboxylation step and the hydrogenation step are carried out in the stated order, and each of the decarboxylation step and the hydrogenation step is carried out under a pressure of 0.2 MPa or less.

The utility model discloses a methanol-to-gasoline process system, which relates to the technical field of gasoline production, and comprises a fluidized bed reactor, a regenerator, a separator and a stripping tower, the top of the fluidized bed reactor is connected with the separator through a gas output pipeline, the bottom of the separator is provided with a liquid removal bag, and the liquid removal bag is connected with the lower end of the stripping tower; a first conveying pipeline and a second conveying pipeline are further connected between the bottom of the fluidized bed reactor and the bottom of the regenerator, a gas outlet of the separator and a gas outlet in the top of the stripping tower are jointly connected to the first conveying pipeline in parallel, and a gasoline separation tower is further connected to the bottom of the separator; the lower end of the fluidized bed reactor is connected with a methanol input pipeline. The device has the advantages of ingenious structure, few side reactions, good reaction efficiency, high yield and the like, and the catalyst in the system has the advantages of long service life, continuous production, low energy consumption, low production cost, high operation flexibility and easiness in large-scale production.