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Method for processing sulphur-containing exhaust air with fetor escaped from storage tank

A treatment method and exhaust gas technology, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, etc., can solve problems such as large adsorption amount, increased equipment investment, and inconvenient operation

Active Publication Date: 2010-12-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When this patent is aimed at the purification of hydrocarbon waste gas with high concentration, there are also the above-mentioned dangerous safety problems caused by excessive heat of adsorption
Although other non-flammable adsorbents can also be used in the adsorption process of VOCs, generally speaking, the adsorption efficiency is low, the amount of adsorbent required is large, the investment in equipment is increased, the adsorption amount of VOCs is low when it penetrates, and frequent regeneration is required processing, causing inconvenience to the operation

Method used

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  • Method for processing sulphur-containing exhaust air with fetor escaped from storage tank
  • Method for processing sulphur-containing exhaust air with fetor escaped from storage tank

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Abstract

The invention discloses a method for treating sulfur-bearing niffy waste gas emitted from a storage tank, which includes the following process: the waste gas is firstly decarbolized and then sequentially passes through a noncombustible adsorbent bed layer and a flammable adsorbent bed layer; the noncombustible adsorbent includes silica gel, molecular sieve or alumina, the flammable adsorbent includes activated carbon or activated carbon fibers, the volume ratio of noncombustible adsorbent to flammable adsorbent is 20:80 to 80:20. By adopting the method of the invention, the concentration of the niffy gas emitted from the storage tank can meet the relevant national standards, and the hydrocarbon concentration of waste gas also can meet the relevant national standards; furthermore, the treatment process is simple and has no potential safety hazard. The method of the invention is mainly applied to the places where sulphid and hydrocarbon waste gas can be generated, for instance, an oil tank, an oily sewage tank, a device which can generate sulfur-bearing hydrocarbon waste gas in hydrocarbon processing course, etc.

Description

Method for treating sulphur-containing malodorous waste gas from storage tank Technical field The invention relates to a method for treating malodorous waste gas from a storage tank. This process adopts an absorption-two-stage adsorption process to purify the sulfur-containing odorous waste gas that escapes from the storage tank and recover the hydrocarbons in the waste gas. After being purified by the process of the present invention, the odorous waste gas containing sulfur escaping from the storage tank can reach the relevant national standards. It is especially suitable for the purification and recovery of sulfur-containing malodorous waste gas generated by oil storage tanks, oily sewage tanks and hydrocarbon processing equipment. Background technique Oil refineries contain various storage tanks, such as sulfur-containing sewage tanks, oil intermediate tanks, etc., which are important sources of malodorous gas emission. The emitted malodorous gas contains high concentratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/75B01D53/78B01D53/04
Inventor 郭兵兵刘忠生
Owner CHINA PETROLEUM & CHEM CORP