Device and method for removing hydrogen sulfide in coal gas through desulfurization and regeneration integration

Abstract

The invention discloses a device for removing hydrogen sulfide in coal gas through desulfurization and regeneration integration. The device comprises a coal gas cooling unit, wherein a coal gas outletof the coal gas cooling unit is connected to a coal gas inlet of a coal gas purification unit; the coal gas outlet of the coal gas purification unit is connected with the coal gas inlet of a coal gasdesulfurization and regeneration unit; the coal gas desulfurization and regeneration unit comprises a desulfurization section located at the lower part and a regeneration section located at the upperpart; a sulfur foam generation groove is mounted at the lower part of the regeneration section; the bottom of a sulfur foam generation groove is connected to a sulfur foam storage groove through a pipeline; an outlet of the sulfur foam storage groove is connected with a sulfur melting kettle; the sulfur melting kettle is used for processing sulfur foam into sulfur and conveying the sulfur to a subsequent procedure. According to the device disclosed by the invention, desulfurization and regeneration are integrated, so that the land area is reduced; a spraying device is utilized and air is self-sucked into the regeneration section through desulfurization liquid power of the regeneration section; a compressor is not needed so that the energy consumption is saved.

Description

【Technical field】 [0001] The invention belongs to the technical field of coal gas desulfurization, and in particular relates to a device and method for removing hydrogen sulfide in coal gas by integrating desulfurization and regeneration. 【Background technique】 [0002] The coke oven gas in the coking plant contains 5g / m 3 If the left and right hydrogen sulfide gas is not removed, it will cause corrosion to the equipment and pipelines, affect the quality of downstream products, poison the catalyst in the methanol workshop, and pollute the atmosphere. The traditional desulfurization method is to use the HPF process that matches the desulfurization tower and the regeneration tower The hydrogen sulfide gas is absorbed by the desulfurization liquid to produce sulfur. The field equipment occupies a large area, the operating cost is high, and the power consumption is large. 【Content of invention】 [0003] The object of the present invention is to provide a device and method for...

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Problems solved by technology

[0002] The coke oven gas in the coking plant contains 5g / m 3 If the left and right hydrogen sulfide gas is not removed, it will cause corrosion to the equipment and pipelines, affect the quality of downstream products, poison the catalyst in the methanol workshop, and pollute the atmosphere. The traditional desulfurization method is to use the HPF process that matches the desulfurization tower and the regeneration tower Hydrogen sulfide gas is absorbed by desulfurization liquid to produce sulfur, the field equipment occupies a large area, the operation cost is high, and the power consumption is large

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