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Catalyst for jointly producing low carbon mixed alcohol and gasoline fraction from synthesis gas and production method and use

A low-carbon mixed alcohol and gasoline fraction technology, which is applied in the preparation of liquid hydrocarbon mixtures, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of high price and wide application of catalysts, etc. problem, to achieve the effect of low cost, good repeatability of reaction performance and good anti-sintering performance

Inactive Publication Date: 2008-12-24
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst is prepared by a simple impregnation method, but the active components of the catalyst are cobalt and palladium, which are expensive, which limits the wide application of the catalyst

Method used

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  • Catalyst for jointly producing low carbon mixed alcohol and gasoline fraction from synthesis gas and production method and use
  • Catalyst for jointly producing low carbon mixed alcohol and gasoline fraction from synthesis gas and production method and use

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Experimental program
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Effect test

Embodiment 1

[0027] The following metal atoms in the form of nitrates were dissolved in distilled water at a molar ratio of Cu:Fe:Mn:Zn:Zr:Co=1.0:1.0:0.5:1:0.1:0.2 to form a mixed solution. Precipitate in parallel flow with 30wt% sodium carbonate solution at 70°C, fully stir during the precipitation process, and keep pH = 8-9. The precipitate was washed 30 times with an equal volume of distilled water. The wet filter cake was dried at 120°C, then calcined at 400°C in an air atmosphere for 6 hours, and crushed to 40-60 mesh to obtain the catalyst. The composition of each element in the catalyst is Cu: 25.2%, Fe: 24.8%, Mn: 8.7%, Zn: 24.8%, Zr: 6.8%, Co: 9.6%, Na: 0.05%. The reaction conditions are as follows: T=260°C, P=6.0MPa, GHSV=8000h -1 , H 2 / CO=2.0. The reaction results are shown in Table 1.

Embodiment 2

[0029] The following metal atoms in the form of nitrates were dissolved in distilled water at a molar ratio of Cu:Fe:Mn:Zn:Zr:Co=1.0:1.0:0.5:1:0.1:0.2 to form a mixed solution. Precipitate in parallel flow with 30wt% sodium carbonate solution at 70°C, fully stir during the precipitation process, and keep pH = 8-9. The precipitate was washed 15 times with an equal volume of distilled water. The wet filter cake was dried at 120°C, then calcined at 400°C in an air atmosphere for 6 hours, and crushed to 40-60 mesh to obtain the catalyst. The composition of each element in the catalyst is Cu: 25.2%, Fe: 23.8%, Mn: 8.7%, Zn: 24.8%, Zr: 6.8%, Co: 9.6%, Na: 1.1%. The reaction conditions are as follows: T=260°C, P=6.0MPa, GHSV=8000h -1 , H 2 / CO=2.0. The reaction results are shown in Table 1.

Embodiment 3

[0031] The following metal atoms in the form of nitrates were dissolved in distilled water at a molar ratio of Cu:Fe:Mn:Zn:Zr:Co=1.0:1.0:0.5:1:0.1:0.2 to form a mixed solution. Precipitate in parallel flow with 30wt% sodium carbonate solution at 70°C, fully stir during the precipitation process, and keep pH = 8-9. The precipitate was washed 5 times with an equal volume of distilled water. The wet filter cake was dried at 120°C and then calcined at 400°C for 6 hours in an air atmosphere and crushed to 40-60 mesh to obtain the catalyst. The composition of each element in the catalyst is Cu: 26.2%, Fe: 24.8%, Mn: 8.7%, Zn: 24.8%, Zr: 7.8%, Co: 9.6%, Na: 4.1%. The reaction conditions are as follows: T=260°C, P=6.0MPa, GHSV=8000h -1 , H 2 / CO=2.0. The reaction results are shown in Table 1.

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Abstract

The present invention relates to a catalyst for making low-carbon mixed alcohol co-produced gasoline fraction from synthesis gas. The catalyst is characterized in that in weight percentage, the catalyst consists of 20 percent to 40 percent of Cu, 15 percent to 40 percent of Fe, 5 percent to 25 percent of Mn, 5 percent to 25 percent of Zn, 5 percent to 15 percent of Zr, 5 percent to 10 percent of Co and 0.01 percent to 5 percent of M, wherein, M is one kind or multiple kinds of alkali metals, alkaline earth metals or transition metal elements. The catalyst is prepared by a coprecipitation method. The catalyst has the advantages of low cost, good stability, long life and high selectivity of the low-carbon mixed alcohol co-produced gasoline fraction made from the synthesis gas under mild reaction condition.

Description

technical field [0001] The invention belongs to a catalyst for producing low-carbon mixed alcohols from synthesis gas for co-production of gasoline fractions, a preparation method and application thereof. Background technique [0002] With the depletion of petroleum resources and the continuous improvement of human environmental awareness, seeking new clean alternative fuels has become an important issue of energy development and utilization. In view of my country's resource endowment characteristics of "rich in coal, poor in oil, and low in gas", converting coal into clean liquid fuels and chemicals will have a beneficial application prospect in replacing petroleum and producing efficient alternative fuels. [0003] Low-carbon mixed alcohols (C1-C5 mixed alcohols) prepared from coal-based syngas can be used as fuel additives and raw materials for some chemical products, and even directly used as clean fuels. Low-carbon mixed alcohol has good miscibility with gasoline, whic...

Claims

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Application Information

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IPC IPC(8): B01J23/889C07C29/156C10G2/00
Inventor 孙予罕房克功李德宝林明桂姜东
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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