Multifunctional integrated wet desulphurization device and process

Abstract

The invention discloses a multifunctional integrated wet desulphurization device and process. The device comprises an efficient reactor, a desulfurization tower and a base, wherein the efficient reactor is installed on the side wall of an externally-hung tower body in front of a gas inlet of the desulfurization tower; the desulfurization tower comprises a gas-liquid separator, an absorption desulfurization section, a rich liquid tank section, a barren liquid tank section, a demister and the like, and the process comprises five steps of efficient reactor desulfurization, gas-liquid separation,absorption desulfurization, purified gas defoaming and rich liquid regeneration. The problems of large equipment investment, high power consumption, high operation cost and large occupied area in theexisting conventional desulfurization technology are solved, and the wet desulfurization device has the advantages of high sulfur capacity and high desulfurization efficiency of the desulfurization liquid.

Description

technical field [0001] The invention belongs to the technical field of desulfurization, and in particular relates to a multifunctional integrated wet desulfurization device and process. Background technique [0002] Coal classification and quality utilization is one of the ways of coal deep processing, and coal pyrolysis is the leader of coal classification and quality utilization. Coal pyrolysis, also known as coal dry distillation or thermal decomposition, refers to the process of heating coal under the condition of isolation of air, evaporating the tar and gas in the coal, and obtaining tar, gas, and semi-coke (semi-coke). The produced coal tar, semi-coke and gas can be further processed into fuel oil and high-end chemicals to achieve quality-based utilization. [0003] Coal can be divided into low-sulfur coal (<1.0wt%), medium-sulfur coal (1.0-2.0wt%), medium-high-sulfur coal (2.0-3.0wt%) and high-sulfur coal (>3.0wt%) according to the sulfur content . After coa...

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Problems solved by technology

Conventional sodium carbonate lye method (including ammonia water method) desulfurization equipment includes absorption tower, oxidation regeneration tower, rich liquid tank, lean liquid tank, sulfur foam tank, sulfur melting kettle, etc., because the gas volume is generally large, especially for high Concentration of sulfur-containing gas, the mass transfer efficiency of conventional packed absorption towers is not high, so these equipments are large in size, the entire device occupies a large area, and the sulfur capacity of rich liquid is low, and the regeneration cycle of desulfurization liquid is large, so it is necessary to use transportation A large number of pumps are transferred, resulting in a large amount of power consumption, resulting in large equipment investment and high operating costs for the whole set of sodium carbonate lye method (including ammonia method) wet desulfurization device

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