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Selecting and packing method of catalyst for sulphur preparation

A catalyst and filling technology, which is used in the preparation/purification of sulfur, can solve the problems of large fluctuation of gas volume, complex composition and low efficiency, and achieve the effect of controlling environmental pollution, avoiding pollution and improving the environment.

Active Publication Date: 2011-05-25
SHANDONG SUNWAY PETROCHEMICAL ENGINEERING CO LTD
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Problems solved by technology

[0002] There are many domestic petrochemical systems that recover sulfur from sulfur-containing crude oil and natural gas. In the rubber additives industry, because of the production of vulcanization accelerator MBT (dithiol benzothiazole) and vulcanization accelerator DPG (diphenylguanidine) , and H 2 S acid gas is generated; due to the intermittent discharge of acid gas from each reactor, the gas volume fluctuates greatly, and the composition is very complex. The Claus recovery sulfur production device actually used in the rubber additives industry is relatively simple and has low efficiency.

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  • Selecting and packing method of catalyst for sulphur preparation

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Embodiment

[0012] A method for filling sulfur-making catalysts in the rubber additive industry, characterized in that the three-stage sulfur-making reactors are filled with sulfur-making catalysts, and the height of the catalysts in the three-stage sulfur-making reactors is 800mm; the upper part of the first-stage converter is filled with 1m 3 PSR-41, lower filling 2m 3 PSR-31; fill 1.1m in the upper part of the secondary converter 3 PSR-41, lower filling 2.1m 3 PSR-31; fill 1.6m in the upper part of the three-stage converter 3 PSR-41, lower filling 1.6m 3 The PSR-31.

[0013] The selection and filling method of the novel sulfur-making catalyst provided by the present invention is based on the CS in the acid gas produced by the rubber vulcanization accelerator MBTS in the rubber industry. 2 The characteristics of high content, the selection of extremely high COS / CS 2 Catalysts with hydrolytic activity, large specific surface area and pore volume, which have increased the area of ​​...

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Abstract

The invention belongs to the technical field of sulfur reclamation in the rubber ingredient industry, and in particular relates to a method for filling a sulfur production catalyst in the rubber ingredient industry, which is characterized in that the sulfur production catalyst is respectively filled into triple-stage sulfur production reactors, wherein the height of the catalyst in the triple-stage sulfur production reactors is all 800 millimeter; the upper part of a primary converter is filled with 1 cubic meter of PSR-41, and the lower part of the primary converter is filled with 2 cubic meters of PSR-31; the upper part of a secondary converter is filled with 1.1 cubic meters of the PSR-41, and the lower part of the secondary converter is filled with 2.1 cubic meters of the PSR-31; and the upper part of a tertiary converter is filled with 1.6 cubic meters of the PSR-41, and the lower part of the tertiary converter is filled with 1.6 cubic meters of the PSR-31. The method improves the sulfur conversion rate of a sulfur reclamation plant in the rubber industry.

Description

technical field [0001] The invention belongs to the technical field of sulfur recovery in the rubber additive industry, and in particular relates to the selection and filling method of a catalyst for sulfur production. Background technique [0002] There are many domestic petrochemical systems that recover sulfur from sulfur-containing crude oil and natural gas. In the rubber additives industry, because of the production of vulcanization accelerator MBT (dithiol benzothiazole) and vulcanization accelerator DPG (diphenylguanidine) , and H 2 S acid gas is generated; due to the intermittent discharge of acid gas from each reactor, the gas volume fluctuates greatly, and the composition is very complex. The Claus recovery sulfur production device actually used in the rubber additives industry is relatively simple and has low efficiency. In 2006, a chemical plant in Shandong took the lead in adopting new technology in the rubber additives industry, and designed a super Claus sulf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B17/02
Inventor 李英
Owner SHANDONG SUNWAY PETROCHEMICAL ENGINEERING CO LTD
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