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H-shaped flue gas dust removal desulfurization reactor and flue gas desulfurization method

Active Publication Date: 2015-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Aiming at the deficiencies of the existing venturi scrubber and turbulent scrubber flue gas treatment technology, the present invention provides an H-type flue gas dedusting and desulfurization reactor and a flue gas desulfurization method, which utilizes the high potential energy and The jujube-shaped structured packing simultaneously pre-treats the flue gas, and the turbulent scrubber is located above the jujube-shaped structured packing

Method used

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  • H-shaped flue gas dust removal desulfurization reactor and flue gas desulfurization method
  • H-shaped flue gas dust removal desulfurization reactor and flue gas desulfurization method
  • H-shaped flue gas dust removal desulfurization reactor and flue gas desulfurization method

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Embodiment 1

[0063] A high-temperature flue gas temperature is 180°C, and the gas volume is 180,000Nm 3 / h,SO 2 The concentration is 800mg / Nm 3 , dust content 500 mg / Nm 3 .

[0064] Reactor operating conditions: operating temperature is 170°C, operating pressure is normal pressure, the pH value of the primary absorption liquid is 6-7, and the pH value of the secondary absorption liquid is 8-9. The turbulent liquid-gas ratio is 6:1, NaOH solution is used as the absorbent, and the gas-liquid is in countercurrent contact; the packing assembly operates with a liquid-gas ratio of 3:1.

[0065] After being treated by the present invention, the flue gas temperature is 60°C, the desulfurization efficiency is 98%, and the dust removal efficiency is 99%.

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Abstract

The present invention discloses an H-shaped flue gas dust removal desulfurization reactor and a flue gas desulfurization method. The reactor of the present invention comprises a pre-treatment unit and a deep treatment unit, wherein the two units form an H-shaped double-tower structure, the pre-treatment unit sequentially comprises a flue gas inlet, a turbulent scrubber, a common jujube seed-shaped regular packing assembly, and a first-stage liquid holding tank from top to bottom, the deep treatment unit comprises a second-stage liquid holding tank, a packing assembly, a demister assembly and a purified flue gas outlet from bottom to top, and the pre-treatment unit and the deep treatment unit are communicated through the flue gas channel on the middle portion. The reactor of the present invention can achieve functions of one spraying and two-stage absorption / purification, has advantages of high contaminant removal rate, low energy consumption and the like, and is especially suitable for the dust removal desulfurization process of high dust content flue gas.

Description

technical field [0001] The invention discloses an H-type flue gas dedusting desulfurization reactor and a flue gas desulfurization method, which belong to the field of environmental protection, are suitable for dust removal and desulfurization treatment of flue gas and process tail gas, and can be widely used in petrochemical, environmental protection and other fields. Background technique [0002] Among the air pollution in China, acid rain and floating dust are the most important ones. For more than a decade, the problem of acid rain has become increasingly prominent due to increasing emissions of sulfur dioxide and nitrogen oxides. Now China is the third largest acid rain area after Europe and North America. SO 2 And dust is an important cause of air pollution in my country, and it is also an air pollutant that is currently under control in our country. my country SO 2 The total discharge has exceeded 20 million tons for many years in a row. In 2005, the total dischar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D47/00
Inventor 彭德强王璐瑶王岩陈建兵孟凡飞王明星陈新姜阳
Owner CHINA PETROLEUM & CHEM CORP
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