Treatment system for exhaust with high oxygen content and treatment method thereof

A treatment system and treatment method technology, applied in the field of chemical equipment, can solve the problems of reducing economic value, increasing the investment cost of incinerators, wasting light fuel in venting exhaust gas, etc., so as to reduce environmental protection investment, reduce design treatment volume, and save costs. Effect

Pending Publication Date: 2020-08-14
连云港石化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This approach has many disadvantages. It not only increases the investment cost of tens of millions of incinerators, but also wastes light fuel in the exhaust gas, greatly reducing the economic value.

Method used

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  • Treatment system for exhaust with high oxygen content and treatment method thereof
  • Treatment system for exhaust with high oxygen content and treatment method thereof
  • Treatment system for exhaust with high oxygen content and treatment method thereof

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Experimental program
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Embodiment 1

[0033] A fuel gas system for processing high-oxygen tail gas, comprising a first system 2 and a second system 11, closing valve b 7, valve c 8, valve d 9, valve e 10, valve f 13, and valve g 14, Valve k 26, valve q 31, valve r 32. Open valve i 24, valve j 25, valve n 28, and valve p 30. The valve m 27 is set to automatically control the pressure at 0.6Mpa. The pressure regulating valve a 6 is set to automatically control the pressure to 0.4Mpa. The first safety valve 21 and the second safety valve 22 ensure that the front and rear valves are opened and put into use, and are regularly inspected. The valve h 23 is set to the interlocking state, the upper limit of the interlock is 0.42Mpa, and the lower limit of the interlock is 0.35Mpa. The fuel gas goes to each user, and there are valves in the user boundary area. The user can take the gas freely. The pressure of the fuel gas system is stable and reliable, and the exhaust gas is connected to the grid safely and smoothly.

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Abstract

The invention discloses a treatment system for exhaust with high oxygen content and a treatment method thereof. The treatment system comprises two stages of pressure operating systems, namely a firstsystem and a second system; a natural gas introduction control device is arranged at the front end of the first system, and is used for controlling natural gas introduced from the outside of a boundary region; the tail end of the first system is connected with the front end of the second system; a pressure regulating valve a is arranged between the tail end of the first system and the front end ofthe second system; the pressure of the first system is controlled to be higher than that of the second system by the pressure regulating valve a; the first system is provided with a plurality of gasfeed pipelines connected to ethylene oxide and glycol devices; the second system is provided with a plurality of gas supply pipelines and a plurality of exhaust emission pipelines for receiving exhaust from the ethylene oxide and glycol devices; and the second system is also provided with a safety release device. The treatment system and the treatment method have the advantages of reducing environmental protection investment, being capable of efficiently recycling exhaust with high oxygen content, reducing the production cost, improving the production benefits and the like.

Description

Technical field [0001] The invention relates to a processing system and a processing method for high-oxygen tail gas, and belongs to the field of chemical equipment. Background technique [0002] At present, domestic ethylene production plants are mainly based on naphtha or coal to olefins, and large-scale plants that use light hydrocarbon ethane as a raw material to produce ethylene have not yet achieved production and operation. In the large-scale light hydrocarbon combined plant, the ethylene oxide and ethylene glycol plant is an important part. In the process of producing ethylene oxide and ethylene glycol, raw materials ethylene and oxygen are used under high temperature and high pressure conditions to generate ethylene oxide through the catalytic oxidation of silver catalyst. The compressor is sent back to the reaction system for recycling. Since the inert gas argon in the raw material oxygen does not participate in the ethylene oxidation reaction, it has been accumulated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/02F17D3/01F17D3/18F23K5/00
CPCF17D1/02F17D3/01F17D3/18F23K5/005
Inventor 杨卫东钟向宏李建亮朱晓东赵启鹏蔡兴峰胡鹏关磊孙海霞董国祥胡玉栋邢向龙陈方方
Owner 连云港石化有限公司
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