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Catalyst for preparing olefin through CO hydrogenation and preparation method and application thereof

An olefin catalyst and catalyst technology, applied in the field of CO hydrogenation to produce olefin catalyst and its preparation, can solve the problem that the hardness of the catalyst cannot meet the requirements of catalytic conversion, etc., and achieve the effect of broad application prospects

Pending Publication Date: 2020-05-22
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, since the above-mentioned iron-based catalyst has not been sintered at high temperature, the hardness of the catalyst cannot meet the catalytic conversion requirements of the existing fluidized bed and fixed bed reactors.

Method used

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  • Catalyst for preparing olefin through CO hydrogenation and preparation method and application thereof
  • Catalyst for preparing olefin through CO hydrogenation and preparation method and application thereof
  • Catalyst for preparing olefin through CO hydrogenation and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Preparation of 15Fe / MgO catalyst (the mass ratio of Fe element to MgO is 15:100)

[0047] First, measure the saturated water absorption of magnesium oxide. Weigh 1 gram of magnesium oxide carrier and place it in a glass beaker with a volume of 25 milliliters. Slowly drop deionized water into the beaker, while continuously stirring the magnesium oxide powder in the beaker, so that the water is evenly distributed on the powder, until the magnesium oxide powder is completely wetted, the amount of deionized water used at this time is the saturated water absorption of magnesium oxide quantity. Experimentally measured saturated water absorption of magnesium oxide is 660 microliters. Another 1 g of magnesium oxide was weighed and placed in a glass beaker with a volume of 25 ml, which was designated as beaker I. Weigh 1.082 g of ferric nitrate nonahydrate and place it in another glass beaker with a volume of 25 ml, add 660 microliters of deionized water to it, and record it ...

Embodiment 2

[0050] Preparation of 1Na-15Fe / MgO catalyst (the mass ratio of Fe element to MgO is 15:100, the mass ratio of iron element to sodium element is 100:1)

[0051] First, measure the saturated water absorption of magnesium oxide. Weigh 1 gram of magnesium oxide carrier and place it in a glass beaker with a volume of 25 milliliters. Slowly drop deionized water into the beaker, while continuously stirring the magnesium oxide powder in the beaker, so that the water is evenly distributed on the powder, until the magnesium oxide powder is completely wetted, the amount of deionized water used at this time is the saturated water absorption of magnesium oxide quantity. Experimentally measured saturated water absorption of magnesium oxide is 660 microliters. Another 1 g of magnesium oxide was weighed and placed in a glass beaker with a volume of 25 ml, which was designated as beaker I. Weigh 1.082 g of ferric nitrate nonahydrate and 0.0056 g of sodium nitrate into another glass beaker w...

Embodiment 3

[0053] Preparation of 5Na-15Fe / MgO catalyst (the mass ratio of Fe element to MgO is 15:100, and the mass ratio of Fe element to Na element is 100:5)

[0054] First, measure the saturated water absorption of magnesium oxide. Weigh 1 gram of magnesium oxide carrier and place it in a glass beaker with a volume of 25 milliliters. Slowly drop deionized water into the beaker, while continuously stirring the magnesium oxide powder in the beaker, so that the water is evenly distributed on the powder, until the magnesium oxide powder is completely wetted, the amount of deionized water used at this time is the saturated water absorption of magnesium oxide quantity. Experimentally measured saturated water absorption of magnesium oxide is 660 microliters. Another 1 g of magnesium oxide was weighed and placed in a glass beaker with a volume of 25 ml, which was designated as beaker I. Weigh 1.082 g of ferric nitrate nonahydrate and 0.0277 g of sodium nitrate into another glass beaker wit...

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Abstract

The invention relates to a catalyst for preparing olefin through CO hydrogenation. A carrier of the catalyst is one selected from of MgO, BeO and La2O3, and is loaded with iron and alkali metal, and the loading amount of Fe is 5 wt%-60 wt%, preferably 15wt%; the loading capacity of the alkali metal is 0.01 wt%-1.5 wt%, preferably 0.15 wt%; the alkali metal comprises one or more selected from a group consisting of Na, K, Rb and Cs; and a mass ratio of the Fe element to the alkali metal element is 1: 0.0001 to 1: 0.1. Compared with the prior art, the catalyst has the advantages that the selectivity of olefin and the stability of the catalyst are remarkably improved, the defect that the performance of an existing catalyst is greatly reduced after active components are loaded is overcome, a new thought is provided for design and preparation of industrial catalysts for efficient conversion of CO hydrogenation, and the catalyst has good industrial prospects.

Description

technical field [0001] The invention relates to the field of CO hydrogenation catalysis, in particular to a catalyst for producing olefins by CO hydrogenation, a preparation method and application thereof. Background technique [0002] Fossil energy is a kind of non-renewable energy, mainly including coal, oil and natural gas. With the continuous development of industry, the demand for these fossil energy sources continues to rise, and the storage capacity also drops sharply thereupon. Indirect coal liquefaction has enormous potential applications. New synthetic techniques are increasingly focused in this area. As a bridge for energy conversion, syngas can convert coal, natural gas, and biomass into clean oil products, and is considered to be one of the most potential alternatives to petroleum. Based on the status quo of China's low oil reserves, the development of synthesis gas conversion technology can not only promote the country's energy strategy security, but also a ...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J23/78B01J23/83C07C1/04C07C11/04
CPCB01J23/78B01J23/83C07C1/044C07C1/0445B01J35/394B01J35/393C07C11/02Y02P20/52
Inventor 韩一帆刘义涛徐晶朱明辉杨子旭丁晓旭张超
Owner EAST CHINA UNIV OF SCI & TECH
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