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Filling method of sulfur recovery catalyst

A catalyst and sulfur recovery technology, which is applied in the preparation/purification of sulfur, etc., can solve the problems of poor catalyst strength, rapid catalyst deactivation, and affecting device operation, etc., achieve strong anti-coking ability, eliminate bottleneck constraints, and prolong service life Effect

Active Publication Date: 2013-03-06
CHINA PETROLEUM & CHEM CORP
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AI Technical Summary

Problems solved by technology

The strength of the oxygen-removing protection type sulfur recovery catalyst used in this grading scheme is poor, and it is easy to pulverize in the later stage of the operation of the device, and the catalyst deactivates quickly, which affects the operation of the device

Method used

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  • Filling method of sulfur recovery catalyst
  • Filling method of sulfur recovery catalyst
  • Filling method of sulfur recovery catalyst

Examples

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Embodiment 1

[0033] The invention is applied to a certain sulfur recovery device, and the hydrocarbon gas volume content in the feed gas of the device is 4-30%, which is higher than the normal design value of the device. The conventional alumina-based sulfur recovery catalyst developed by the Research Institute of Sinopec Qilu Branch and the titanium-aluminum composite sulfur recovery catalyst developed by the Research Institute of Sinopec Qilu Branch are used for composite packing. The catalyst gradation scheme of the present invention is as follows: two-stage sulfur production reactor The height of the catalyst is 800mm; the upper part of the primary converter is filled with a 400mm-high titanium-aluminum composite multifunctional sulfur recovery catalyst, a total of 20t, and the lower part is filled with a 400mm-high conventional alumina-based sulfur recovery catalyst, a total of 14t; the secondary conversion The catalyst loading scheme of the converter is the same as that of the primary...

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Abstract

The invention relates to a filling method of a sulfur recovery catalyst, belonging to a method for preparing sulfur from gaseous sulfur compounds containing gaseous sulfides. The invention is suitable for simple substance sulfur recovery at the desulfurization section of a petroleum refining or natural gas processing device technique. The method comprises two stages of sulfur production converters, wherein the upper part of the primary converter is filled with a titanium-aluminum composite sulfur recovery catalyst, and the lower part is filled with a conventional aluminum-oxide-base sulfur recovery catalyst; and the upper part of the secondary converter is filled with the titanium-aluminum composite sulfur recovery catalyst, and the lower part is filled with the conventional aluminum-oxide-base sulfur recovery catalyst. The filling method of the catalyst is suitable for a high-hydrocarbon-content acidic gas sulfur recovery unit. When the hydrocarbon gas volume content in acidic gas of the sulfur recovery unit is 4-30%, the sulfur conversion rate of the sulfur recovery unit is greater than or equal to 96%, and the service life of the catalyst is greater than or equal to 6 years.

Description

technical field [0001] The invention relates to a filling method of a sulfur recovery catalyst, belonging to a method for preparing sulfur from gaseous sulfur-containing compounds including gaseous sulfides. It is suitable for the recovery of elemental sulfur in the desulfurization section of petroleum refining and natural gas processing equipment. Background technique [0002] In the processes of petroleum refining and natural gas processing units, there are more or less certain hydrocarbon impurity gases in the feed acid gas of the sulfur recovery unit, mainly aromatic hydrocarbons and high molecular weight hydrocarbons. In the prior art, the sulfur recovery unit is generally designed to require that the hydrocarbon content in the acid gas is less than 4% (v). However, due to the source of raw materials, operating conditions and other factors, the content of hydrocarbons in the feed acid gas of the sulfur recovery unit is often higher than the 4% (v) index, and sometimes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B17/04
Inventor 刘爱华刘剑利达建文陶卫东许金山刘增让
Owner CHINA PETROLEUM & CHEM CORP
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