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Device of purifying large quantity of exhaust gas containing dilute volatile hydrocarbon

An exhaust gas purification device, hydrocarbon technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc.

Inactive Publication Date: 2009-02-11
SHISUTEMU ENJI SAABISU
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0013] However, even the "fibrous activated carbon method" and the "honeycomb rotor method", any of them are already known technologies, but they have a problem that the concentration of condensed volatile hydrocarbons is as high as 1000-5000PPM. Concentrations of volatile hydrocarbons cannot be combusted, so there are economics of recovery

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  • Device of purifying large quantity of exhaust gas containing dilute volatile hydrocarbon
  • Device of purifying large quantity of exhaust gas containing dilute volatile hydrocarbon

Examples

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Embodiment 1

[0098] (Concrete application example 1 of the present invention)

[0099] Below on the basis of Fig. 1, the "processing of 5000m per hour containing 500PPM ethyl acetate" of the specific application example 1 of the present invention is illustrated by way of example. 3 In addition, Fig. 1 is a schematic diagram showing an embodiment of the purification device of the present invention. In the figure, 10 is a waste gas supply pipe, 11 is a honeycomb pipe, 12 is a regeneration air supply pipe, and 13 is discharged to The gas pipeline in the atmosphere, 1 is the supply pipeline of concentrated gas, 2a, 2b, 3a, 3b are electromagnetic valves, 4 is a vacuum pump, 5 is a gas-liquid separator, 6 is a return pipeline for non-condensed gas, 7a, 7b are adsorption Towers, 8, 8a, 8b are air (purified gas) supply pipes, 9 is a gas pipe for discharging into the atmosphere, 9a, 9b are solenoid valves.

[0100] As shown above, this example is "treating 5000m per hour containing 500PPM ethyl ac...

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Abstract

A method of purifying an exhaust gas by means of an ''adsorption unit (adsorption columns (7a, 7b)) including an adsorbent layer packed with precoated mesoporous active carbon'' capable of alternately switched operations of adsorption and desorption, wherein prior to the treatment by means of the adsorption unit, a concentration increase is effected by means of a ''pre-treatment unit (honeycomb rotor (11) or stationary honeycomb) including an adsorbent layer packed with precoated mesoporous active carbon'' for concentrating of any dilute volatile hydrocarbon contained in the exhaust gas. Consequently, there can be provided a method of purifying large amounts of exhaust gas with dilute volatile hydrocarbon concentration, in which without emission of carbon dioxide, any volatile hydrocarboncontained can be recovered with extreme easiness as a liquid. Further, there can be provided a purification method in which ''zero emission'' is attained with respect to volatile hydrocarbons.

Description

[0001] This invention patent application is a divisional application of another Chinese invention patent application. The application date of this other Chinese invention patent application: June 27, 2005, application number: 200680023192.1, invention name: containing dilute volatile hydrocarbons A method of purifying a large amount of exhaust gas. technical field [0002] The invention relates to a purification device for exhaust gas containing volatile hydrocarbons, especially a purification device for a large amount of exhaust gas containing dilute volatile hydrocarbons discharged into the atmosphere. In this device, carbon dioxide is not discharged into the atmosphere after burning waste gas as in the prior art, but according to the "point of view of preventing global warming" and "point of view of pollution control", in order to achieve the purpose of zero emission purification of the above-mentioned waste gas, from The adsorption device for effectively separating and reu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
Inventor 田原弘能智博史
Owner SHISUTEMU ENJI SAABISU
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