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Energy-saving method for washing and dedusting synthesis gas product of methyl monomer

A technology for washing and dedusting and synthesis gas, which is applied in chemical instruments and methods, compounds of Group 4/14 elements of the periodic table, organic chemistry, etc. Ideal and other problems to achieve the effect of increasing the feed temperature, saving cooling consumption and reducing energy consumption

Inactive Publication Date: 2011-08-24
于淑芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although superheated monochloromethane gas is used as the blowback gas to remove the dust adhered to the micropores of the ceramic filter, the actual application effect is not ideal. The micropores of the ceramic filter are often blocked, resulting in an increase in bed pressure or even Affect the normal and stable production operation of the monomer synthesis unit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The high-temperature organic chlorosilane synthesis gas from the fluidized bed reactor for chlorosilane synthesis enters the washing tower after passing through the primary and secondary cyclone separators for preliminary dust removal. In the washing tower, the high-temperature organic chlorosilane synthesis gas containing dust and the condensed reflux liquid with a relatively high boiling point are in reverse contact to further remove dust and achieve the purpose of dust removal and purification.

[0021] The qualified organochlorosilane synthesis gas purified from the top of the washing tower enters the primary condenser, and the 80-90°C tower top gas (about 82.2°C) after washing and dust removal enters the first cooler at the top of the washing tower in turn, and the first cooler at the top of the washing tower is used Circulating water is used as the cooling medium for cooling and condensation, and the temperature of the condensate is controlled at 35--45°C.

[0022...

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Abstract

The invention relates to an energy-saving novel method of a technology for washing and dedusting a synthesis gas product of a methyl monomer. The method comprises the following steps of: secondly condensing washing gas, reflowing by a condensed fluid of a condenser with a higher boiling point relatively, and reversely contacting with the dust-containing high-temperate organic chlorosilane synthesis gas to dedust and purify to obtain the qualified organic chlorosilane synthesis gas. Therefore, the method achieves the aim of energy saving.

Description

technical field [0001] The invention relates to a process for washing and dedusting the synthesis gas product of organosilicon monomer. Background technique [0002] The synthesis of methyl monomers uses silicon powder and methyl chloride as raw materials to directly synthesize methylchlorosilane under the action of a copper catalyst system, and the main target product is dimethyldichlorosilane. Methylchlorosilane synthesis technology is the core technology of organosilicon monomer production. Its reaction mechanism is complex, with many side reactions, high dimethyl selectivity and low raw material and energy consumption are the goals that the organosilicon industry has been striving for for many years. [0003] In relevant patent documents at home and abroad, regarding the method for washing and dedusting the synthetic gas products of organosilicon monomers, CN1438226A discloses a method for wet dedusting and high-boiling separation of organochlorosilane gas, which uses or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/16
Inventor 于淑芳
Owner 于淑芳