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Catalyst for producing hydrocarbon fuels by hydrodeoxygenation of animal and vegetable oils and its preparation method

A technology for producing hydrocarbons from animal and vegetable oils and deoxygenation, which is applied in the direction of physical/chemical process catalysts, fatty acid hydrogenation, molecular sieve catalysts, etc. It can solve the problems of high hydrogen consumption and energy consumption, complex processes, and large investment in production equipment, etc. Mechanical strength, increased specific surface area, high mechanical strength effect

Active Publication Date: 2021-10-15
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the need to use a two-step method for the preparation of hydrocarbon fuels in the prior art by hydrodeoxygenation of fats and oils. The whole process requires multiple reactors and multi-step operating procedures. High energy consumption and large investment in production equipment, so as to provide a catalyst and preparation method for hydrogenation and deoxygenation of animal and vegetable oils and fats to produce hydrocarbon fuels

Method used

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  • Catalyst for producing hydrocarbon fuels by hydrodeoxygenation of animal and vegetable oils and its preparation method
  • Catalyst for producing hydrocarbon fuels by hydrodeoxygenation of animal and vegetable oils and its preparation method

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preparation example Construction

[0039] The present invention also relates to a method for preparing the above-mentioned catalyst for hydrogenation and deoxygenation of animal and vegetable oils to produce hydrocarbon fuels, comprising the following steps: loading active components on a composite carrier prepared by perovskite and acidic carrier.

[0040] The preparation of the composite carrier specifically includes the following steps: adding a binder to the perovskite and the acidic carrier to form a mixture, then adding a peptizer and water to the mixture, kneading and molding after mixing, and then drying and roasting the formed product , to obtain a composite carrier.

[0041] The perovskite is commercially available or prepared according to the following method: dissolve soluble rare earth metal salts, soluble alkaline earth metal salts, and soluble transition metal salts in water to form a solution with a concentration of 0.25-2.5mol / L, and then add complex mixture, and finally put the solution added ...

Embodiment 1

[0047] 1) Preparation of perovskite

[0048] Lanthanum nitrate, calcium nitrate, iron nitrate, and manganese nitrate are formulated into a precursor aqueous solution A of perovskite-type active components, wherein the molar ratio of metal ions La: Ca: Fe: Mn is 9:1:1:9 , the total molar concentration of metal ions is 1.0mol / L; add a certain amount of citric acid to solution A, the molar ratio of citric acid to La, Ca, Fe, Mn metals is 1.0, stir and fully dissolve to obtain solution B ; Place solution B in an oven and dry at 100°C for 24 hours to evaporate excess water to obtain gel A; place gel A in a muffle furnace to roast at 800°C for 3 hours to obtain perovskite La 0.9 Ca 0.1 Fe 0.1 mn 0.9 o 3 .

[0049] 2) Forming of composite carrier

[0050] 150gLa 0.9 Ca 0.1 Fe 0.1 mn 0.9 o 3 , 100g γ-Al 2 o 3 , 50gZSM-5, 20g turmeric powder, and 30g pseudoboehmite are fully mixed; add 100g of deionized water and 10g of acetic acid to the dry material of the mixture, fully...

Embodiment 2

[0053] 1) Preparation of perovskite

[0054] Lanthanum nitrate, calcium nitrate, iron nitrate, and manganese nitrate are formulated into a precursor aqueous solution A of perovskite-type active components, wherein the molar ratio of metal ions La: Ca: Fe: Mn is 5:5:5:5 , the total molar concentration of metal ions is 2.0mol / L; add a certain amount of citric acid to solution A, the molar ratio of citric acid to La, Ca, Fe, Mn metals is 0.5, stir and fully dissolve to obtain solution B; Solution B was dried in an oven at 120°C for 4 hours, and excess water was evaporated to obtain gel A; gel A was calcined in a muffle furnace at 700°C for 6 hours to obtain perovskite La 0.5 Ca 0.5 Fe 0.5 mn 0.5 o 3 .

[0055] 2) Forming of composite carrier

[0056] 100gLa 0.5 Ca 0.5 Fe 0.5 mn 0.5 o 3 , 100g amorphous silica-alumina, 100gZSM-22, 10g gum, 15g pseudo-boehmite are fully mixed; add deionized water 90g, oxalic acid 5g in the dry material of the mixture, fully knead, and th...

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Abstract

The invention relates to the field of catalysts, in particular to a catalyst for producing hydrocarbon fuels by hydrodeoxygenation of animal and vegetable oils and fats, comprising: active components, including at least one metal element in Group VIB and at least one Group VIII metal element; perovskite, The general formula is A 1‑x A' x B 1‑y B' y O 3 , where A is a rare earth metal element, A' is an alkaline earth metal element, B and B' are transition metal elements, 0.1≤x≤0.9, 0.1≤y≤0.9; acidic carriers, including γ‑Al 2 O 3 Or at least one of amorphous silica-alumina and molecular sieves, with suitable acidity, suitable pore structure and resistance to hydrothermal aging, and can hydrodeoxygenate, hydroisomerize animal and vegetable oils and other raw materials in one reactor The reaction is completed in one step, thereby obtaining isoparaffins with low freezing point, reducing operation procedures and energy consumption.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a catalyst for hydrogenation and deoxygenation of animal and vegetable oils to produce hydrocarbon fuels and a preparation method. Background technique [0002] At present, the main source of energy in the world is fossil energy, but fossil energy is non-renewable energy, and the resources are limited. Therefore, with the continuous development of the world economy and the increasing pressure of carbon dioxide emission reduction, the market is demanding renewable, low-greenhouse gas The demand for green energy that emits emissions is also increasing. [0003] At present, all countries in the world, especially industrially developed countries, are actively committed to developing coal-to-oil, bio-oil and other new oil alternative energy sources to alleviate the oil shortage. However, the primary products of these new alternative energy sources also exist. Its inherent defects, such as lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/48B01J29/78B01J29/85C10G3/00C11C3/12
CPCB01J29/48B01J29/7876B01J29/7892B01J29/85C10G3/49C10G3/50C11C3/126Y02P30/20
Inventor 高群仰刘营胡胜
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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