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Removing agent for removing carbonyl iron and carbonyl nickel in syngas and preparation method thereof

A technology for synthesis gas and removing agent, applied in chemical instruments and methods, separation methods, other chemical processes, etc., can solve problems such as catalyst life that affects product yield, catalyst poisoning, etc.

Inactive Publication Date: 2011-10-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is that existing synthesis gas system 2 The above oxygenated compounds (C 2 +-oxygenates) technology in the raw material synthesis gas iron carbonyl and nickel carbonyl will cause catalyst poisoning, thereby affecting the product yield and catalyst life, providing a new removal of carbonyl iron and carbonyl nickel carbonyl in the synthesis gas In addition to agents

Method used

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  • Removing agent for removing carbonyl iron and carbonyl nickel in syngas and preparation method thereof
  • Removing agent for removing carbonyl iron and carbonyl nickel in syngas and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Weigh 1.65g of potassium nitrate and 3.1g of copper nitrate (containing 6 crystal waters), add 4.5g of deionized water, dissolve and mix the copper nitrate and potassium nitrate evenly, then add 5.0g of γ-Al 2 o 3 , after soaking for 5 hours, put it into an oven and dry at 100°C for 18 hours, and finally bake at 600°C for 2 hours. Get Cu(10.5%)-K(10.1%) / γ-Al 2 o 3 (79.4%) remover, numbered T-1.

Embodiment 2

[0022] Weigh 19.1g magnesium nitrate (containing 6 crystal waters), 7.4g copper nitrate (containing 6 crystal waters) and dissolve in 3.0g deionized water, mix well and add 5.0g γAl 2 o 3 , after soaking for 2 hours, put it in an oven and dry it at 80°C for 36 hours, and finally bake it at 500°C4. Get CuO(20%)-MgO(30%) / γ-Al 2 o 3 (50%) remover, numbered T-2.

Embodiment 3

[0024] Weigh 9.9g magnesium nitrate (containing 6 crystal waters), 1.45g copper nitrate (containing 6 crystal waters) and dissolve in 2.3g deionized water, mix well and add 5.0g γAl 2 o 3 , after soaking for 7 hours, put it in an oven to dry at 150°C for 1 hour, and finally bake at 300°C for 6 hours. Obtain Cu(5%)-Mg(15%) / γ-Al 2 o 3 (80%) remover, numbered T-3.

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Abstract

The invention relates to a removing agent for removing carbonyl iron and carbonyl nickel in syngas and a preparation method thereof, and mainly solves the problem in the prior art that carbonyl iron and carbonyl nickel in raw material syngas can cause catalyst poisoning and thereby influence the product yield and the catalyst life. Through the technical scheme that carbonyl iron and carbonyl nickel in syngas are removed by using a removing agent with copper or its oxides as main metal components and alkali metal magnesium, potassium, calcium, or their oxides and mixtures as auxiliary metal components, the invention solves the problem well, and is applicable to the industrial production of preparing C2+-oxygenates by syngas.

Description

technical field [0001] The invention relates to a removing agent for removing iron carbonyl and nickel carbonyl in synthesis gas and a preparation method thereof. Background technique [0002] Iron carbonyl and nickel carbonyl in synthesis gas are generally formed by the corrosion of stainless steel equipment and pipelines by CO. Li Xuanzhi et al. reported in the article "Industrial Catalysis" (Oct.2006, Vol.14, No.10, P28-30) "Influence of Metal Carbonyl Compounds on Catalysts in Methanol Synthesis Gas and Countermeasures" that in industrial production of methanol, At relatively low temperature and extremely high pressure, a large amount of CO contained in the raw gas will react with the surface components of the stainless steel pipe it contacts to form carbonyl iron Fe(CO) 5 , Nickel Carbonyl Ni(CO) 4 . After these iron carbonyls and nickel carbonyls enter the reaction system, they will decompose at the reaction temperature, which will eventually lead to a rapid decline...

Claims

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Application Information

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IPC IPC(8): B01J20/08B01J20/32B01D53/04
Inventor 宋庆英刘苏王仰东
Owner CHINA PETROLEUM & CHEM CORP
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