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Catalytic vent gas treatment system for abatement of volatile chemical emissions

A volatile compound, treatment system technology, applied in the field of catalytic treatment systems

Inactive Publication Date: 2002-07-17
BP CORP NORTH AMERICA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, hydrohalic acids are corrosive pollutants

Method used

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  • Catalytic vent gas treatment system for abatement of volatile chemical emissions
  • Catalytic vent gas treatment system for abatement of volatile chemical emissions

Examples

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Embodiment 1

[0057] In this example, methanol is used as the combustible fluid in accordance with the present invention, and a noble metal catalyst capable of destroying volatile organic compounds is used in the form of a ceramic monolith or supported on a monolithic ceramic to treat a series of exhaust gas streams.

[0058] The content of each component in the gaseous mixture flowing into the reactor is: about 2-6% of oxygen, about 0.1-0.5% of carbon monoxide, about 0.5-3.0% of carbon dioxide, about 0.2-2.0% of water, methyl acetate, methyl bromide, Methyl formate, benzene, toluene, o-xylene and acetic acid are all about 1-1000ppmv, methanol is about 3000-14000ppmv, and the balance is nitrogen.

[0059] At a reactor temperature of about 415-510°C, a reactor pressure of about 160-170 psig, and a space velocity of about 10,000 hr -1 Under the reaction conditions of (gas flow velocity / catalyst volume under the standard state), the conversion rates of carbon monoxide, methyl acetate, methyl b...

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Abstract

An integrated process of vent gas treatment for abatement of carbon monoxide and volatile organic compound emissions from a chemical process plant is provided, and includes provisions for catalytic oxidation of organic pollutants with dioxygen in a vent gas stream over a solid oxidation catalyst (44), means for supplying an amount of combustible fluid (31) into the vent gas stream upstream of the oxidation to facilitate catalytic oxidation of the organic pollutants; and means for controlling the amount of combustible fluid being supplied by the supplying means, the controlling means being arranged to provide sufficient reactants for the catalytic oxidation to maintain suitable reaction temperatures in accordance with the present invention.

Description

technical field [0001] The present invention relates to a catalytic exhaust gas treatment system which can be used to reduce the emission of volatile chemical substances in the exhaust gas. In particular, it relates to apparatus and methods for reducing emissions of carbon monoxide and volatile organic chemicals in exhaust gas streams containing potential pollutants from industrial processes. [0002] The present invention provides a method of treating exhaust comprising: (A) diffusing a controlled amount of a pre-selected combustible fluid into the exhaust gas stream; (B) oxidizing the combustible fluid while passing it at an elevated temperature over an oxidation catalyst The oxidation reaction destroys most of the harmful VOCs; (C) Control the amount of combustible fluid fed into the exhaust gas stream to provide sufficient reactants for the catalytic oxidation reaction to maintain a suitable reaction temperature. [0003] Aspects of the invention also relate to the indust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/34B01D53/86B01D53/94B01J23/38
CPCB01D53/8662B01D53/864B01D53/8668B01D53/8696Y02P20/10B01D53/34B01D53/94B01D53/86
Inventor 肯尼思·J·艾布拉姆斯弗兰克·G·贝尔蒙特朱迪思·P·奥本海姆
Owner BP CORP NORTH AMERICA INC
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