Method for production regulation of chelated iron desulfurization process

A desulfurization process, a technology for complexing iron, applied in separation methods, chemical instruments and methods, petroleum industry, etc., can solve problems such as poor ratio selection, changing desulfurizers, etc., to reduce electricity consumption, avoid waste, and desulfurization good effect

Active Publication Date: 2014-04-02
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0008] In order to overcome the problems existing in the existing chelated iron desulfurization process when the content of the sulfur-containing raw material gas changes, it is necessary to change the ratio of

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  • Method for production regulation of chelated iron desulfurization process
  • Method for production regulation of chelated iron desulfurization process
  • Method for production regulation of chelated iron desulfurization process

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[0055] A method for the production and control of complex iron desulfurization process. The raw material gas containing hydrogen sulfide is passed through an acid gas separator to remove solid and liquid impurities, and then enters the pre-absorption tower and other absorption towers in turn, and complexed with iron The hydrogen sulfide gas is removed by the liquid reaction, and the purified natural gas enters the purified gas separator to remove water, and is directly exported after passing the metering test;

[0056] In the absorption tower, the complex iron rich liquid containing sulfur passes through the rich liquid flash tank and enters the regeneration tower to contact with oxygen in the air to form a lean liquid capable of absorbing hydrogen sulfide again. The lean liquid enters the separation tank and passes through the lean liquid. The pump enters the absorption tower again to complete the entire desulfurization liquid cycle. The rich liquid and the lean liquid form the d...

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Abstract

The present invention relates to a gas treatment method, specifically to a method for production regulation of a chelated iron desulfurization process. According to the method, solid phase impurities and liquid phase impurities are removed from hydrogen sulfide-containing raw material gas through an acid-gas separator, the obtained material sequentially passes through a pre-absorption tower and an absorption tower, and reacts with the chelated iron barren solution so as to remove the hydrogen sulfide gas, and the purified nature gas enters a purified gas separator to remove water, is subjected to measurement detection, and then is directly and externally output. With the method, normal use can be achieved even when the hydrogen sulfide content in the raw material gas is changed, and production requirements can be met through adaptable regulation of other parameters according to the method so as to avoid regulation of the production process. In addition, according to the actual situation requirements of the production, the optimal desulfurization solution circulation amount is selected so as to reduce equipment loss, reduce pump power consumption and avoid waste of energy sources.

Description

technical field [0001] The invention relates to a gas treatment method, in particular to a method for production control of complexed iron desulfurization process. Background technique [0002] At present, the natural gas desulfurization processes commonly used in natural gas desulfurization can roughly have the following three types: [0003] (1) Absorption-regeneration process: According to the type of absorption solvent, it can be subdivided into two types: physical solvent absorption method and chemical solvent absorption method. Among them, the chemical absorption method using various alcohol amines as solvents is the current natural gas purification process. the broadest method. Such methods should also remove a certain amount of carbon dioxide while removing hydrogen sulfide. [0004] (2) Oxidation-reduction process: Under certain conditions, it is suitable for the desulfurization of normal pressure or low pressure, medium and low sulfur natural gas. This type of pr...

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Application Information

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IPC IPC(8): B01D53/78B01D53/52C10L3/10
Inventor 张百灵赵禹鑫谭明文赵凯杨功田陈学敏王黎明罗庆瑞唐勇唐华斌李依珂于川黄守清李锦程胡腾曾建平伍洲熊重寒孙昊茹李成军高利黄海文刚宋洋
Owner CHINA PETROLEUM & CHEM CORP
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