Processing method for acid gas containing H2S

A treatment method and acid gas technology, applied in separation methods, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as complex control and operation, large circulating liquid in the absorption tower, and slow reaction speed, so as to reduce operation difficulty and cost , the effect of reduced washing cycle volume, reduced height and diameter
CN102205202AInactive Publication Date: 2011-10-05BEIJING FUNGHAN ENG CONSULTING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING FUNGHAN ENG CONSULTING
Publication Date
2011-10-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a processing method for an acid gas containing H2S. The method comprises the following steps that: H2S in the acid gas is transformed into SO2 through burning; the SO2 is subjected to a reaction to generate SO3 in the presence of a catalyst; the SO3 reacts with an alkaline solution to produce a sulfate solution; at last the sulfate solution is processed to obtain a sulfate product. With the method provided by the present invention, the acid gas can be removed so as to meet discharge requirements of environmental protection, and operation difficulty and operation cost are reduced.
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Description

technical field

[0001] The invention relates to a treatment process for acid gas, in particular to a 2 S acid gas combustion and purification combined process. Background technique

[0002] Currently, treatments containing H 2 The methods of S acid gas include alkaline washing to prepare sulfur, Claus to prepare sulfur, and H 2 After S is burned, it is absorbed with ammonia water or other alkaline solutions, and then oxidized to form (NH 4 ) 2 SO 4 etc. sulfate method.

[0003] The above method has large investment, complicated control and operation, among which H 2 After S is burned, it is absorbed by alkaline solution, and some need to be oxidized to form (NH 4 ) 2 SO 4 The sulfate method such as, absorbing tower circulation liquid is very big, and tower diameter is thick, and in order to obtain (NH 4 ) 2 SO 4 Sulfates such as sulfites need to be blown into a large amount of air to oxidize sulfites and bisulfites, etc., and the reaction speed is slow, and ammon...

Claims

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