A kind of treatment method and device of hydrogen sulfide-containing gas

A treatment device and hydrogen sulfide technology, applied in chemical instruments and methods, separation methods, ammonium sulfide/polysulfide, etc., can solve problems such as solid waste generation, low purity of sulfur products, and expensive desulfurization catalysts, and reduce Energy consumption, increased crystal attachment area, large surface area effect

Active Publication Date: 2019-01-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This technology has problems such as expensive desulfurization catalyst, sulfur foam entrainment catalyst, low purity of sulfur product, and solid waste generation.

Method used

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  • A kind of treatment method and device of hydrogen sulfide-containing gas
  • A kind of treatment method and device of hydrogen sulfide-containing gas
  • A kind of treatment method and device of hydrogen sulfide-containing gas

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Embodiment 1

[0067] use as figure 1 The shown treatment method and device use acid gas as raw material for treatment. CO in acid gas 2 The volume fraction is 94%, H 2 The volume fraction of S is 5%, and the volume fraction of hydrocarbons is 1%. In embodiment 1, crystallization tower structure is as figure 2 shown. The acid gas is first cooled by 20°C through the cooler, and then mixed evenly with ammonia gas in the mixer. The feed molar ratio of acid gas and ammonia gas is 2:3. The mixed stream enters the crystallization tower to obtain gas phase stream and ammonium hydrogen sulfide crystallization. The ammonium hydrosulfide crystals are deposited on the crystallization column in the crystallization tower. The results of material analysis are shown in Table 1.

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Abstract

The invention discloses a hydrogen sulphide-containing gas treatment device. The device comprises a cooler, a mixer and a crystallization tower; a hydrogen sulphide-containing gas feeding pipeline is connected with an inlet of the cooler; an outlet of the cooler is connected with an inlet of the mixer; the inlet of the mixer is also connected with the hydrogen sulphide-containing gas feeding pipeline; an outlet of the mixer is connected with an inlet of the crystallization tower. The invention also discloses a hydrogen sulphide-containing gas treatment method. According to the hydrogen sulphide-containing gas treatment method and the hydrogen sulphide-containing gas treatment device, the hydrogen sulphide is separated from a hydrogen sulphide-containing gas and simultaneously an ammonium hydrogen sulphide product is obtained by utilizing the characteristic that ammonia gas and hydrogen sulphide perform gas phase reaction to generate ammonium hydrogen sulphide; the method is simple in process and low in energy consumption, is particularly suitable for separating acid gas of a refinery plant; the used crystallization tower has the advantages that crystal substances fall easily, the surface on which the crystal substances can be attached is large and the like.

Description

technical field [0001] The invention relates to a treatment method and device for hydrogen sulfide-containing gas, in particular to a method and device for purifying hydrogen sulfide-containing gas by means of crystallization. Background technique [0002] Crystallization, the process by which solid matter emerges as crystals from a vapor, solution or melt, has been used thousands of years ago to extract table salt from seawater. According to statistics, in modern society, about 2 / 3 of the bulk chemical products are solid products, especially in the pharmaceutical industry, 85% of the products are solid products, and the production process of these solid products is inseparable from crystallization operate. The traditional industrial crystallization research field can generally be divided into four categories, namely solution crystallization, melt crystallization, precipitation crystallization and sublimation crystallization. [0003] Crystallization equipment is an import...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/76B01D53/52C01C1/20
Inventor 彭德强王璐瑶孟凡飞陈新刘杰王岩
Owner CHINA PETROLEUM & CHEM CORP
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