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Method for collecting and treating excess sulphur and elemental carbon from process gas of carbon bisulfide production

A carbon disulfide and treatment method technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve problems such as process pipeline blockage, and achieve the effects of prolonging service life, reducing construction costs, and reducing operating costs

Inactive Publication Date: 2004-12-29
宣汉正北科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The method of the present invention will enable the excess sulfur and powdery elemental carbon present in the process gas to be substantially completely removed, thereby satisfactorily solving the blockage of the aggregates in the form of "sulfur mud" on process pipelines such as heat exchanger tubes. question

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  • Method for collecting and treating excess sulphur and elemental carbon from process gas of carbon bisulfide production

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Embodiment Construction

[0021] As shown in the figure is a process flow of the present invention for capturing and treating excess sulfur and elemental carbon in carbon disulfide production process gas. The process is as follows:

[0022]Using natural gas with an amount of 282 standard cubic meters per hour (composed of 96.37% methane, 1.62% ethane, 0.45% propane, and 33% 0-butane), and sulfur exceeding 6% of the theoretical amount as raw materials, at 640°C to 680°C After completing the reaction to synthesize carbon disulfide under the condition of 0.4Mpa, the process gas in the form of a mixture leaving the carbon disulfide reactor is washed and collected once by liquid sulfur at a temperature of 120°C-170°C, especially 120°C-150°C. The above-mentioned patent is used for washing. The application number is 02276560.3 industrial gas scrubbing equipment, and the process gas is carried out through the liquid scrubbing medium through the lower end of the partition structure extending into the liquid scr...

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Abstract

The present invention relates to a method for trapping and treating excess sulfur and elementary carbon in the process gas produced in the course of carbon disulfide. The process gas away from the carbon disulfide reactor is washed and trapped at least once by using liquid sulfur as washing medium, then more washed and trapped at least once again by using liquid carbon disulfide, in particular the process gas is trapped and washed by making the process gas pass through liquid sulfur and liquid carbon disulfide as washing medium, then is fed into condensation separation treatment process of carbon disulfide, so that it can effectively remove excess sulfur and elementary carbon from the process gas produced in the production of carbon disulfide.

Description

technical field [0001] The present invention relates to the process of capturing and removing the excess sulfur in the process gas leaving the carbon disulfide reactor and the elemental carbon produced by the cracking of hydrocarbon raw materials in the process of producing carbon disulfide with hydrocarbons and sulfur as raw materials method. Background technique [0002] When carbon disulfide is produced from low-level hydrocarbons such as sulfur and methane or petroleum cracked gas containing saturated and / or unsaturated low-carbon hydrocarbons, except that excess sulfur is usually used, the cracking of hydrocarbon raw materials will also cause carbon disulfide in the reaction process. Elemental carbon is produced in the form of pulverulent particles. Therefore, in the process gas leaving the carbon disulfide reactor in the form of a mixture of reaction products and unreacted products, it is inevitable and unavoidable to be accompanied by excess sulfur and pulverized ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D47/00C01B31/26
Inventor 王起超王刚
Owner 宣汉正北科技有限公司
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