Equipment for preparing sulfuric acid

An equipment and technology for sulfuric acid, applied in the field of equipment for preparing sulfuric acid, can solve the problems of large fluctuation, the sulfuric acid needs to be improved, and the sulfuric acid cannot be satisfied, and the effect of low cost is achieved.
CN103405997AInactive Publication Date: 2013-11-27CHINA ENFI ENGINEERING CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ENFI ENGINEERING CORPORATION
Publication Date
2013-11-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides equipment for preparing sulfuric acid, which comprises a high-concentration flue gas supply device, a sulfur dioxide transformation device, a sulfur trioxide absorbing device, an absorbing device, a desorbing device and a sulfur dioxide liquefying device, connected in sequence, wherein a sulfur dioxide absorbing agent is arranged in the absorbing device to absorb sulfur dioxide in high-concentration flue gas; the desorbing device is used for releasing sulfur dioxide through rising the temperature; the sulfur dioxide transformation device is used for transforming sulfur dioxide into sulfur trioxide; the sulfur trioxide absorbing device is used for absorbing sulfur trioxide with sulfuric acid to obtain sulfuric acid and acid making exhaust gas containing sulfur dioxide; the sulfur dioxide liquefying device is used for liquefying gaseous sulfur dioxide. The flue gas purification equipment can provide sulfur dioxide enriched or recovered in flue gas, and finally obtain sulfuric acid or liquid sulfur dioxide.
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Description

technical field

[0001] The invention relates to the field of chemical industry, in particular, the invention relates to a device for preparing sulfuric acid. Background technique

[0002] Smoke is a mixture of gas and smoke and is the main cause of air pollution in residential areas. The composition of flue gas is very complex, including sulfur dioxide, carbon monoxide, carbon dioxide and so on. The pollution of flue gas to the environment is the compound pollution of various poisons. The sulfur dioxide in the flue gas can be converted into sulfur trioxide to absorb sulfuric acid to prepare sulfuric acid. However, due to the low concentration of sulfur dioxide in the flue gas (large fluctuations), it cannot meet the needs of the contact method for the preparation of sulfuric acid.

[0003] Thus, the current means for preparing sulfuric acid still needs to be improved. Contents of the invention

[0004] The present invention aims at solving at least one of the above-men...

Claims

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