A device and process for converting multi-component complex organic sulfur in crude synthesis gas into hydrogen sulfide

Abstract

The invention discloses a device and a method used for converting multi-component complex organic sulfur in crude synthetic gas into hydrogen sulfide. The device comprises a high temperature hydrogenation reactor, a low temperature hydrolysis reactor, a steam content adjusting assembly, and a heating assembly; the steam content adjusting assembly is used for controlling steam content of crude synthetic gas introduced into the device; the heating assembly is used for heating crude synthetic gas introduced into the high temperature hydrogenation reactor; the crude synthetic gas is introduced into the high temperature hydrogenation reactor and the low temperature hydrolysis reactor successively for conversion treatment. According to the method, the crude synthetic gas is subjected to direct organic sulfur conversion, hydrogen sulfide removing pre-treatment is not needed, the whole process is simplified; high temperature hydrogenation and low temperature hydrolysis combined organic sulfuris adopted, high temperature is beneficial for treatment of composite organic sulfides such as thiophene, thioether, and mercaptan, low temperature is beneficial for increasing of organic sulfur conversion balance reaction depth, so that the whole organic sulfur conversion rate is increased.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a device and a process for converting multi-component complex organic sulfur in crude synthesis gas into hydrogen sulfide. Background technique [0002] With the development of the coal chemical industry, the resource utilization of coke oven tail gas and calcium carbide tail gas, and the further improvement of environmental protection requirements, the desulfurization and purification of crude coal gas, coke oven tail gas, calcium carbide tail gas, etc. be valued. The multi-component and complex organic sulfur in crude synthesis gas is difficult to be effectively removed by conventional purification processes. Most of the existing crude synthesis gas organic sulfur removal processes first wet wash to remove hydrogen sulfide, and then convert and adsorb to remove organic sulfur. The process is complicated, and a large amount of desulfurization adsorbent is ...

AI Technical Summary

Problems solved by technology

The multi-component and complex organic sulfur in crude synthesis gas is difficult to be effectively removed by conventional purification processes. Most of the existing crude synthesis gas organic sulfur removal processes first wet wash to remove hydrogen sulfide, and then convert and adsorb to remove organic sulfur. The process is complicated, and a large amount of desulfurization adsorbent is consumed, and sulfur-containing waste solids are formed

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