Off-gas treatment system and method

A tail gas treatment and tail gas technology, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation, can solve problems such as large investment and thermal pollution, and achieve the effect of saving initial investment and maintenance costs.

Active Publication Date: 2015-09-09
北联智服(北京)科技有限公司
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Problems solved by technology

[0003] The three-way catalysis method is currently generally recognized as the treatment method before exhaust emission. As the most important external purification device installed in the automobile exhaust system, the carrier component corresponding to the three-way catalysis method is installed in a special exhaust pipe. The porous ceramic material of the three-way catalysis method itself does not participate in the chemical reaction, and the surface must be covered with precious metals. Therefore, the three-way catalysis technology currently accepted by the market generally has the defect of excessive investment, and the three-way catalysis method is at a high temperature. It can only react when it reaches 350°C. In this way, while reducing chemical pollution, the accompanying heat pollution can no longer be ignored.

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  • Off-gas treatment system and method

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 The exhaust gas treatment system shown mainly includes an adsorption unit, a cooling subsystem and a purification unit arranged sequentially along the exhaust gas discharge direction, wherein the adsorption unit and the purification unit are mainly used for adsorption purification treatment of automobile exhaust in different stages , to reduce the chemical pollution produced by it, and the cooling subsystem is used to cool down the exhaust gas and reduce the thermal pollution produced by it; among them:

[0025] The main effective structure of the purification unit is a filter with activated carbon fiber and zeolite, and the cooling subsystem is a closed loop composed of an evaporator, a condenser, a compressor and a throttle valve, which are placed between the purification unit and the adsorp...

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Abstract

The invention provides an off-gas treatment system and method. The treatment system comprises an off-gas adsorption subsystem and a cooling subsystem, wherein the off-gas adsorption subsystem comprises an adsorption unit and a purification unit; and the cooling subsystem is arranged between the adsorption unit and the purification unit, and the adsorption unit is arranged at the rear end of an automobile exhaust pipe. According to the off-gas treatment system and method, adsorption-cooling-adsorption treatment is performed on automobile off-gas, so that thermal pollution generated by off-gas is also eliminated to a certain extent under the precondition of performing treatment on chemical pollution of the off-gas.

Description

technical field [0001] The invention relates to the field of automobile tail gas treatment, in particular to a tail gas treatment system and method. Background technique [0002] Under the background that environmental issues have become the focus of attention on a global scale, with the increase and further increase of car ownership, the inevitable chemical pollution caused by vehicle exhaust emissions is accompanied by thermal pollution, which to a certain extent makes the environment load further increases. Therefore, how to reduce the impact of automobile exhaust emissions on the environment has become one of the key research directions accompanying the development of the automobile industry. [0003] The three-way catalysis method is currently generally recognized as the treatment method before exhaust emission. As the most important external purification device installed in the automobile exhaust system, the carrier component corresponding to the three-way catalysis m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02
Inventor 王刚熊亚选徐荣吉王晗吴占铁李亚男松柏孙东晗陈美含
Owner 北联智服(北京)科技有限公司
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