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Cleaning agent for removing iron carbonyl and nickel carbonyl in synthesis gas and preparation method and application of cleaning agent

A purification agent and synthesis gas technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problem of low removal accuracy

Inactive Publication Date: 2012-12-12
SOUTHWEST RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reported purification agents for removing iron carbonyl and nickel carbonyl in synthesis gas all have the disadvantage of low removal accuracy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 149.83g Cu(NO 3 ) 2 ·3H 2 O, 82.70gZn(NO 3 ) 2 ·6H 2 O and 64.18g Al(NO 3 ) 3 9H 2 O was made into 1500ml mixed salt solution, diatomite was added into it with stirring, the mass ratio of diatomite to CuO was 1.7 / 1, soaked at 65°C-90°C for 10-12h, and filtered to obtain Scavenger precursor A. Purifying agent precursor A was dried at 50° C. for 24 hours to obtain purifying agent precursor B. 149.83g Cu(NO 3 ) 2 ·3H 2 O, 82.70gZn(NO 3 ) 2 ·6H 2 O and 64.18g Al(NO 3 ) 3 9H 2 O was made into 1500ml mixed salt solution, and the cleaning agent precursor B was added into it with stirring, soaked at 65°C-90°C for 10-12h, and filtered to obtain the cleaning agent precursor C. Purifying agent precursor C was dried at 50°C for 12 hours, added a certain amount of bentonite and water, extruded, and calcined at 300°C to obtain purifying agent RA-a. Use this purifying agent to remove carbonyl iron and carbonyl nickel in synthesis gas, wherein the concentration of ca...

Embodiment 2

[0024] 149.83g Cu(NO 3 ) 2 ·3H 2 O, 72.25gZn(NO 3 ) 2 ·6H 2 O and 63.98g Al(NO 3 ) 3 9H 2 O is made into 1500ml mixed salt solution, diatomite is added into it with stirring, the mass ratio of diatomite to CuO is 1.85 / 1, impregnated at 65°C-90°C for 10-12h, and filtered to obtain Scavenger precursor A. The cleaning agent precursor A was dried at 80°C for 16 hours to obtain the cleaning agent precursor B. 149.83g Cu(NO 3 ) 2 ·3H 2 O, 72.25gZn(NO 3 ) 2 ·6H 2 O and 63.98g Al(NO 3 ) 3 9H 2 O was made into 1500ml mixed salt solution, and the cleaning agent precursor B was added into it with stirring, soaked at 65°C-90°C for 10-12h, and filtered to obtain the cleaning agent precursor C. Purifying agent precursor C was dried at 80°C for 10 hours, added a certain amount of bentonite and water, extruded, and calcined at 375°C to obtain purifying agent RA-b. Use this purifying agent to remove carbonyl iron and carbonyl nickel in synthesis gas, wherein the concentratio...

Embodiment 3

[0026] 149.83g Cu(NO 3 ) 2 ·3H 2 O, 62.48gZn(NO 3 ) 2 ·6H 2 O and 63.79g Al(NO 3 ) 3 9H 2 O to make 1500ml mixed salt solution, add diatomite to it with stirring, the mass ratio of diatomite to CuO is 2 / 1, impregnate at 65°C-90°C for 10-12h, filter to obtain Scavenger precursor A. The cleaning agent precursor A was dried at 110°C for 12 hours to obtain the cleaning agent precursor B. 149.83g Cu(NO 3 ) 2 ·3H 2 O, 62.48gZn(NO 3 ) 2 ·6H 2 O and 63.79g Al(NO 3 ) 3 9H 2 O was made into 1500ml mixed salt solution, and the cleaning agent precursor B was added into it with stirring, soaked at 65°C-90°C for 10-12h, and filtered to obtain the cleaning agent precursor C. Purifier precursor C was dried at 110°C for 8 hours, a certain amount of bentonite and water were added, extruded, and calcined at 450°C to obtain purifier RA-c. Use this purifying agent to remove carbonyl iron and carbonyl nickel in synthesis gas, wherein the concentration of carbonyl iron + carbonyl ...

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Abstract

The invention discloses a cleaning agent for removing iron carbonyl and nickel carbonyl in synthesis gas and a preparation method and application of the cleaning agent. The invention belongs to the field of gas purification. The general formula of the cleaning agent is CuZnAl(O)-carrier; the molar ratio of Cu to Zn to Al is (58-62):(26-21):(16-17), and the mass ratio of the carrier to CuO is (1.7-2):1. The preparation method for the cleaning agent comprises the following steps of in sequence: preparing soluble salt with active ingredients into a solution A; soaking to obtain a cleaning agent precursor A; drying to obtain a cleaning agent precursor B; preparing the soluble salt with the active ingredients into a solution B; soaking to obtain a cleaning agent precursor C; drying; adding bentonite and water; extruding; and roasting to obtain the cleaning agent, wherein the reaction temperature is 170-300 DEG C, the reaction pressure is 0-2.0MPa, and the reaction airspeed is 500-8000h-1. The cleaning agent with higher removal precision more meets the requirements of the methanol large-scale synthesis gas purification aspect at present.

Description

Technical field [0001] The present invention is a gas purifier and its preparation and application fields. It is more specifically involved in a purification agent and its preparation and application that involves a deprivation of synthetic gas and nickel nickel nickel. Background technique [0002] At present, the raw material routes of coal -to -methanol in my country occupy an increasingly important position in the national energy strategy policy. The domestic methanol industry has also developed rapidly. Gradually develop to a single series and large -scale development. In this case, the long -term and efficient operation of methanol devices highlights important.However, from the actual situation of the methanol industry in my country, there are some problems in the process of development and progress. One of the prominent problems is that the service life of methanol catalysts is short, and the production intensity of methanol catalysts is low. [0003] As far as the product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/32B01D53/04
Inventor 王莉艾珍吴砚会邱传珪
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND
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