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Coke oven gas treatment system and crude benzol recovery method

A technology for processing system and coke oven gas, which is applied in combustible gas purification, liquid scrubbing gas purification, combustible gas purification/transformation, etc. It can solve the problems of unstable production and low recovery rate of crude benzene, and achieve the improvement of recovery rate of crude benzene , Guaranteed operating rate, crude benzene recovery rate and stable production effect

Active Publication Date: 2018-08-24
李劲松
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Problems solved by technology

[0003] Aiming at the low recovery rate of crude benzene in coke oven gas and the problem of unstable production in the prior art, the present invention proposes a coke oven gas treatment system capable of improving the recovery rate of crude benzene and stable production and recovering crude benzene method

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  • Coke oven gas treatment system and crude benzol recovery method
  • Coke oven gas treatment system and crude benzol recovery method
  • Coke oven gas treatment system and crude benzol recovery method

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Embodiment Construction

[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0021] Such as figure 1 As shown, the coke oven gas treatment system of the present invention includes the previous process 2, benzene washing tower 3, rich oil pump 4, heat exchange heating system 5, debenzene tower 6, regenerator 7, lean oil storage tank 8, lean oil pump 9. Cooler 10, slag storage tank 11, oil-water separator 12, reflux tank 13, reflux pump 14, crude benzene metering tank 15, clean gas automatic release system 16...

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Abstract

The invention relates to a coke oven gas treatment system. The treatment system comprises a former process unit (2), a benzol scrubber (3), a rich oil pump (3), a heat exchange and heating system (5),a debenzolization tower (6), a regenerator (7), a lean oil storage tank (8), a lean oil pump (9), a cooler (10), a slag storage tank (11), an oil-water separator (12), a reflux tank (13), a reflux pump (14), a crude benzol measuring tank (15) and an automatic clean gas exhaust system (16), wherein the former process unit (2) comprises a primary cooler (21) and a final cooler (22). By means of theprimary cooler and the final cooler with online cleaning capacity as well as the automatic clean gas exhaust system, crude benzol recovery rate is increased.

Description

technical field [0001] The invention belongs to the field of coke oven gas treatment, in particular to the field of crude benzene recovery. Background technique [0002] During the production of coke in the coking plant, coal gas is also produced, which is called coke oven gas. There are many chemical substances in the coke oven gas, which can be extracted by corresponding chemical and physical methods to be very useful chemical products, such as coal tar, ammonium sulfate, sulfur, and crude benzene is also one of them. Crude benzene is an important chemical raw material. It is expensive because of its wide range of uses, and its recovery from coke oven gas does not affect the quality of the gas. Therefore, every coking plant is equipped with a crude benzene recovery device. However, the recovery rate of crude benzene in most coking plants is between 0.9% and 1.0% (based on the dry coal used for coking). For example, in the article "Optimization and Transformation of Benze...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10K1/18C10K1/08
CPCC10K1/08C10K1/18Y02P20/10
Inventor 李劲松
Owner 李劲松
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