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Treatment method of odor gas containing sulfur and dust

A technology for waste gas and dust, applied in the field of odorous waste gas treatment, can solve problems such as uneconomical, achieve high purification efficiency and eliminate odor pollution.

Active Publication Date: 2012-05-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] But above-mentioned method handles this type of waste gas described in the present invention and is uneconomical, and in the malodorous waste gas containing sulfur and dust involved in the present invention, VOCs amount is less, needs further processing after reclaiming and just has utilization value, for reclaimed In terms of the value embodied by VOCs, it is not economical

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  • Treatment method of odor gas containing sulfur and dust
  • Treatment method of odor gas containing sulfur and dust

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Embodiment 1

[0036] In this embodiment, wet scrubbing-two-stage adsorption method is used to treat sulfur-containing dust and odorous gas of hydrocarbons, wherein the concentration of sulfide is 300mg / m 3 , the total hydrocarbon concentration is 0.2% (volume ratio), and the dust concentration is 3000mg / m 3 , the exhaust gas temperature is normal temperature. The additive is sodium alkylbenzene sulfonate, and the concentration of sodium alkylbenzene sulfonate is 2 wt%. The space velocity of the exhaust gas in the absorption and washing equipment is 4000h -1 , the liquid-gas ratio is 15L / m 3 . The adsorbent in the lower layer of the adsorption tower is an iron-type desulfurizer with a specific surface area of ​​713m 2 / g, pore volume 0.39ml / g, average pore diameter 2.2nm. The upper layer is solvent recovery activated carbon with a specific surface area of ​​1013m 2 / g, pore volume 0.49ml / g, average pore diameter 1.3nm. After treatment by this process, the total hydrocarbon concentrati...

Embodiment 2

[0040] In the fugitive exhaust gas of an industrial facility, the exhaust gas volume is 500m 3 / h, normal temperature, hydrogen sulfide 100mg / m 3 , organic sulfide 50mg / m 3 , dust concentration 4000mg / m 3 . The waste gas is purified by settling box-bubbling absorption tower. The composition of the absorption washing liquid is 5wt% sodium hypochlorite, 1wt% sodium hydroxide, 5wt% nonylphenol polyoxyethylene ether, and 5wt% sodium alkylbenzenesulfonate. The space velocity of the waste gas in the bubbling absorption tower is 2000h -1 , the liquid-gas ratio is 5L / m 3 . After purification by this process, the dust is completely removed, the hydrogen sulfide waste gas is completely purified, and the organic sulfide outlet is less than 1mg / m 3 .

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Abstract

The invention discloses a method for processing foul waste gas contained sulfur and dust. The waste gas is processed dedusting using liquid absorption, water solution contained additive is used as absorption washing liquid, the additive comprises a washing agent, the washing agent has washing organism, is one or some of the surface active agent, washing agent, emulsifying agent and dispersing agent, the absorption washing liquid also can comprise alkaline matter or oxidizing agent. Waste gas is deprived hazardous substance such as sulphide, hydrocarbon further after being absorption and washing. The method can deprive various contamination in foul waste gas contained sulfur and dust effectively, has advantages of high purifying rate and long device running period. The method can be used for purifying various foul waste gas contained sulfur and dust, especially in catalyst production process.

Description

technical field [0001] The invention relates to a treatment method for malodorous waste gas containing sulfur and dust, in particular to a treatment method for malodorous waste gas containing harmful components such as sulfur, dust and hydrocarbon volatiles. Background technique [0002] In oil refining enterprises, catalyst is an indispensable core product. In the process of catalyst production, since the catalyst needs to be heated, roasted and other processes, catalyst production equipment will inevitably produce dust, sulfide (hydrogen sulfide and organic sulfur-containing compounds) ), VOCs (Volatile Organic Compounds), ammonia and other complex exhaust gases mixed together. Long-term activities of employees in an environment polluted by these substances may cause diseases such as the respiratory system, digestive system, and reproductive system, and may also cause body lesions and cancer; when the pollution is severe, it may also cause dizziness, sore throat, nausea, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14B01D53/78B01D53/04B01D47/00
Inventor 郭兵兵
Owner CHINA PETROLEUM & CHEM CORP
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