Rectisol hydrogen sulfide treatment device

A technology of low-temperature methanol washing and processing device, which is applied in the fields of combustible gas purification, chemical instruments and methods, combustible gas purification/reconstruction, etc. Effect

Pending Publication Date: 2019-10-11
河南开祥精细化工有限公司
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AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a low-temperature methanol washing hydrogen sulfide treatment device to solve the problem that the existing devices proposed in the above-mentioned background technology cannot process hydrogen sulfide

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  • Rectisol hydrogen sulfide treatment device

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] The invention provides the following technical scheme: a low-temperature methanol washing hydrogen sulfide treatment device, which is used to change the tail gas discharged from the hydrogen sulfide concentration tower of the low-temperature methanol washing system of the methanol plant from the direct discharge torch system to the hydrogen sulfide adsorption tower and then discharge it to Torch system. This device uses hydrogen sulfide adsorption techn...

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Abstract

The invention discloses a rectisol hydrogen sulfide treatment device in the technical field of chemical production. The device comprises a hydrogen sulfide concentration tower, a pipeline for tail gasfrom the hydrogen sulfide concentration tower to a heat exchanger, a nitrogen pipeline, a pipeline from a hydrogen sulfide adsorption tower to a torch and a hydrogen sulfide adsorption tower pressuregauge, wherein the upper portion of the hydrogen sulfide concentration tower is connected with the pipeline for the tail gas from the hydrogen sulfide concentration tower to the heat exchanger, and the pipeline for the tail gas from the hydrogen sulfide concentration tower to the heat exchanger is connected with a tail gas outlet of the hydrogen sulfide concentration tower and an inlet of the heat exchanger. The device is characterized in that the tail gas discharged by the hydrogen sulfide concentration tower of a rectisol system of a methyl alcohol device is discharged to a torch system after being treated by the hydrogen sulfide concentration tower instead of being directly discharged to the torch system; a hydrogen sulfide adsorption technology is adopted to remove hydrogen sulfide inthe tail gas, the treatment process is adsorbent adsorption, it is achieved that the final hydrogen sulfide content in the tail gas is 1ppm or below, odor around a plant is reduced or eliminated, theecological environment of the production device is actively improved, and the economical practicability is stronger.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a low-temperature methanol washing hydrogen sulfide treatment device. Background technique [0002] Methanol is an important basic chemical raw material, which is the need of the national energy security and the rapid development of the chemical industry. The coal-to-methanol process uses coal as raw material, and the crude synthesis gas produced by gasification undergoes methanol conversion, low-temperature methanol washing, synthesis, and rectification to produce qualified methanol. The removal of acid gas in gas by low-temperature methanol scrubbing belongs to wet desulfurization. It is used to remove carbon dioxide, hydrogen sulfide, organic sulfide, cyanide and unsaturated hydrocarbons in chemical raw material gas. It is a relatively advanced technology for deep desulfurization of synthesis gas, and is widely used in the production of methanol synthesis and ammo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/52C10K1/00C10K1/16
CPCB01D53/8612C10K1/004C10K1/16
Inventor 和进伟李建立胡金明张卫国张方李森张萌萌周鹏飞段广新尚凤玲罗明周刘少勇马海腾李栋平寒锐李长伟李娜
Owner 河南开祥精细化工有限公司
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