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Purification method of sulfur-containing organic waste gas

A waste gas and organic technology, which is applied in the field of purification of sulfur-containing organic waste gas, can solve problems such as pollution of sulfur-containing organic waste gas, achieve the effects of reducing operating costs, preventing the impact of stable operation, and good treatment effects

Active Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the deficiencies of the existing technology, the present invention proposes a technology capable of simultaneously solving sulfur pollution and hydrocarbon pollution, thereby completely solving the pollution problem of sulfur-containing organic waste gas, and at the same time has the advantages of strong economy and the like

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  • Purification method of sulfur-containing organic waste gas
  • Purification method of sulfur-containing organic waste gas

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Embodiment

[0036] The acid water tank of a petrochemical enterprise has a volatilization amount of exhaust gas of 150Nm 3 / h, the total hydrocarbon concentration of the exhaust gas is 60,000 mg / m 3 , total sulfur concentration 6000mg / m 3 , of which the hydrogen sulfide concentration is 900 mg / m 3 , methyl mercaptan 450mg / m 3 , methyl sulfide 300mg / m 3 , dimethyl disulfide 1200mg / m 3 . The waste gas is treated by the process of "lye washing + sewage oil washing + catalytic combustion", in which, in the catalytic combustion unit, the catalysts used are precious metal Pt and Pd catalysts, and the flow rate of the dilution air is from 700Nm 3 / h to 1000Nm 3 / h varies. After two-stage washing pretreatment and air dilution, the total sulfur concentration and hydrogen sulfide concentration of the exhaust gas entering the reactor are both 10 mg / m 3 Below, the total hydrocarbon concentration is 12000mg / m 3 Below, the intake conditions of the catalytic combustion reactor are met.

[0037...

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Abstract

The invention discloses a purification method of a sulfur-containing organic waste gas. The method comprises the following steps: firstly, washing and pre-treating the waste gas with alkali liquor so as to remove hydrogen sulfide in the waste gas; secondly, washing with sump oil to remove organic sulfide and hydrocarbon contaminants in the waste gas; and finally, performing catalytic combustion to completely remove hydrocarbon contaminants in the waste gas, thereby ensuring that the waste gas meets the emission standard. The waste gas is the organic waste gas which is high in sulfur content and is discharged from a sour water tank or alkaline residue tank of a petrochemical enterprise. The method provided by the invention is economical and can be used for removing various harmful substances in the waste gas; and the method has the advantages of short process flow, simplicity, lower equipment investment and operating cost, complete removal of contaminants, no secondary pollution and the like.

Description

technical field [0001] The invention relates to a method for purifying sulfur-containing organic waste gas. The waste gas comes from high-sulfur-containing organic waste gas emitted from acid water tanks, gasoline alkali residue tanks, liquid hydrocarbon alkali residue tanks and the like in petrochemical enterprises. Background technique [0002] In the odorous gas emitted by the crude gasoline alkali residue tank, liquid hydrocarbon alkali residue tank, acid water tank, etc. in petrochemical enterprises, the sulfide is as high as several thousand mg / m 3 , the total hydrocarbon concentration is as high as tens of thousands mg / m 3 , the odor pollution is serious, but the gas emission is not large. Sulfides mainly include organic sulfides and inorganic sulfides, of which inorganic sulfides are hydrogen sulfide, and organic sulfides include mercaptans, sulfides, carbonyl sulfides, organic disulfide compounds (such as dimethyl disulfide), thiophene, etc. Sulfur-containing orga...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/86B01D53/48B01D53/52B01D53/72
Inventor 王新刘忠生戴文军王有华赵磊
Owner CHINA PETROLEUM & CHEM CORP
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