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Treatment method and treatment system for organic matter-containing gas

A treatment method and technology for organic matter, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, etc., can solve the problems of low gas flux in the absorption subsystem, failure to meet processing requirements, high organic matter removal rate, etc., and achieve complete The effect of removing organic matter, reducing process cost and improving absorption rate

Active Publication Date: 2021-11-26
CHINA PETROLEUM & CHEM CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because there is a gas-liquid equilibrium relationship in absorption, it is often difficult to achieve a high organic matter removal rate in absorption, and must rely on subsequent adsorption for treatment.
[0003] In the current organic matter treatment process, the absorption subsystem often operates at a lower gas velocity due to the limitation of liquid entrainment, but the gas flux of the absorption subsystem is not high, and there is a problem that it cannot meet the treatment requirements

Method used

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  • Treatment method and treatment system for organic matter-containing gas

Examples

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Embodiment 1

[0047] This embodiment provides a treatment method for gas containing organic matter, which adopts figure 1 The devices in are processed as follows:

[0048] Fill the absorption unit 110 with an absorbent (hydrocarbons and mercaptans with a boiling point of 150-250° C., a mixture obtained by mixing them at a volume ratio of 1:1), and the adsorption unit 130 is filled with an adsorbent (made of carbon, with pores less than 2nm and 2 The pore volume ratio of -10nm pores is 1:2, and the pore volume ratio of below 10nm is 95%). The forced mixing section 121 in the mixing and defoaming unit 120 is filled with wire mesh packing with a porosity of 91%.

[0049] The gas containing organic matter (the main gas is nitrogen, the organic matter is C7 ketones, and the concentration of organic matter is 10000mg / m 3 ), from the gas inlet 001 into the absorption unit 110, the gas velocity is controlled at 0.5m / s, the temperature is at -5°C, the pressure is 0.2MPa, and the residence time of ...

Embodiment 2

[0055] This embodiment provides a treatment method for gas containing organic matter, which adopts figure 1 The devices in are processed as follows:

[0056] Fill the absorption unit 110 with an absorbent (a mixture of esters and ketones with a boiling point of 200-250° C., mixed at a volume ratio of 1:1), and the adsorption unit 130 is filled with an adsorbent (made of carbon, with pores less than 2 nm and 2- The pore volume ratio of 10nm pores is 1:3, and the pore volume ratio of below 10nm is 90%). The forced mixing section 121 in the mixing and defoaming unit 120 is filled with wire mesh packing with a porosity of 90%.

[0057] The gas containing organic matter (the main gas is 50% hydrogen and 50% He, the organic matter is a mixture of C10 esters in any proportion, the concentration of organic matter is 500mg / m 3 ), from the gas inlet 001 into the absorption unit 110, the gas velocity is controlled at 1m / s, the temperature is at 10°C, the pressure is 2MPa, and the resid...

Embodiment 3

[0063] This embodiment provides a treatment method for gas containing organic matter, which adopts figure 1 The devices in are processed as follows:

[0064] Fill the absorption unit 110 with an absorbent (a mixture of alcohols, esters, and amines with a boiling point of 150-180°C, mixed at a volume ratio of 1:1:1), and the adsorption unit 130 is filled with an adsorbent (made of carbon, less than 2nm The pore volume ratio of pores to 2-10nm pores is 1:4, and the pore volume ratio of pores below 10nm is 50%). The forced mixing section 121 in the mixing and defoaming unit 120 is filled with wire mesh packing with a porosity of 95%.

[0065] The gas containing organic matter (the main gas is a mixture of CO and Ar in any ratio, the organic matter is C5 hydrocarbons, the ratio of alcohols to ketones is roughly 1:1:1, and the concentration of organic matter is 20000mg / m 3 ), from the gas inlet 001 into the absorption unit 110, the gas velocity is controlled at 0.7m / s, the temper...

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Abstract

The invention discloses a treatment method and a treatment system for gas containing organic matters, and relates to the technical field of chemical engineering and environmental protection. The treatment method of the organic matter-containing gas comprises the following steps: treating the organic matter-containing gas through the absorption unit, the mixing and defoaming unit and the adsorption unit in sequence, wherein the absorption unit is used for enabling gas containing organic matters to be in contact with absorption liquid and outputting the gas subjected to absorption treatment; the mixing and defoaming unit is used for forcibly mixing the gas subjected to absorption treatment, treating the gas by adopting a demister and outputting the gas subjected to defoaming treatment; and the adsorption unit is used for contacting the defoamed gas with an adsorbent. The inventor creatively arranges the mixing and defoaming unit for forced mixing and defoaming between the absorption unit and the adsorption unit, so that the absorption unit can be allowed to operate at a high gas speed, the treatment capacity is remarkably improved, and the process cost is reduced; besides, the absorptivity of the organic matters can be further improved, and the aim of completely removing the organic matters is fulfilled.

Description

technical field [0001] The invention relates to the technical fields of chemical industry and environmental protection, in particular, to a treatment method and a treatment system for gas containing organic matter. Background technique [0002] In the process of chemical production, a large amount of waste gas containing organic matter is often produced, which is generally removed by absorption and adsorption. Among them, the absorption method often uses a liquid absorbent, and uses organic matter with a high boiling point and low volatility to absorb the organic matter in the exhaust gas; the adsorbent in the adsorption method often uses porous material particles or powder, and absorbs the organic matter into the pores. , through the confinement effect of the space, the organic matter in the exhaust gas is removed. Because there is a gas-liquid equilibrium relationship in absorption, it is often difficult to achieve a high organic matter removal rate in absorption, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14B01D53/04B01D45/12
CPCB01D53/1487B01D53/04B01D45/12B01D2253/102Y02A50/20
Inventor 涂先红崔超婕杜建文陈卫红骞伟中鲁华裴旭东李昊陈正朝李朝恒尹泽芳徐兴史朋武于翔贺泽玲喻志龙马爱霞
Owner CHINA PETROLEUM & CHEM CORP
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