Method and device for desulphurization of recycle hydrogen

Abstract

The invention relates to a method and a device for the desulphurization of recycle hydrogen. The invention provides a method for the desulphurization of the recycle hydrogen, which comprises the following steps: conveying the recycle hydrogen mixture into a high-pressure separator of an internal cyclone separator to remove liquid and solid particles carried by the mixture; and delivering the recycle hydrogen mixture from which the liquid and the solid particles are removed into a desulfurizer to remove sulfur carried by the mixture, wherein the high-pressure separator and the desulfurizer are transversely arranged or longitudinally and coaxially overlapped. The invention also provides a device for the desulphurization of the recycle hydrogen.

Description

technical field [0001] The invention belongs to the field of chemical environmental protection treatment and relates to a compact cycle hydrogen desulfurization method. Specifically, the present invention adopts the method of directly connecting the gas phase outlet of the cyclone enhanced high-pressure separator with the gas phase inlet of the circulating hydrogen desulfurization tower, which not only cancels the dehydration and dehydrogenation equipment at the circulating hydrogen desulfurization tower inlet in the original circulating hydrogen desulfurization process , which reduces the investment cost and energy consumption of the desulfurization process equipment, and eliminates the temperature drop caused by the dehydration at the inlet of the original circulating hydrogen desulfurization tower and the pipeline between the gas phase outlet of the dehydrogenation equipment and the inlet of the circulating hydrogen desulfurization tower. The induced foaming of the desulfur...

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Problems solved by technology

[0008] The present invention provides a new compact circulating hydrogen desulfurization method and device, which solves the problems of circulating hydrodecarbonization and desulfurization process, such as foaming and loss of amine liquid, and cancels the circulating hydrogen desulfurization tower in the original circulating hydrogen desulfurization process The inlet dehydration and dehydrogenation equipment reduces the investment cost and energy consumption of desulfurization process equipment, and also eliminates the temperature drop caused by the pipeline between the gas phase outlet of the dehydration and dehydrocarbon equipment at the inlet of the original circulating hydrogen desulfurization tower and the inlet of the circulating hydrogen desulfurization tower, avoiding The problem of desulfurization agent foaming caused by this part of condensed oil, thus solving the problems existing in the prior art

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