A system for ensuring normal shutdown and blowing of sulfur during sulfur recovery

A technology for normal shutdown and sulfur recovery, applied in the field of sulfur recovery, can solve the problems of insufficient sulfur blowing time, system and equipment damage, etc., to reduce costs and ensure system safety.

Inactive Publication Date: 2017-02-01
内蒙古大唐国际克什克腾煤制天然气有限责任公司
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  • Abstract
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Problems solved by technology

[0006] In the field of coal or petroleum conversion to natural gas chemical industry, to overcome the defects of the sulfur recovery system due to sudden interruption of fuel gas or insufficient fuel gas to force the system to h

Method used

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  • A system for ensuring normal shutdown and blowing of sulfur during sulfur recovery

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[0032] The present invention is further explained by specific examples below, but it should be understood that these examples are only used for more detailed and specific explanation, and should not be understood as limiting the present invention in any form. It is clear to those skilled in the art that in the context, unless otherwise specified, the valves and components used in the present invention are all well-known in the art.

[0033] Such as figure 1 As shown, the present invention provides a system for ensuring the normal shutdown of sulfur blowing in the sulfur recovery process. The system includes a fuel gas pipeline 10, a venting flare pipeline 13, a natural gas export pipeline 1, a pressure equalization pipeline 2 connected in parallel with it, The pressure equalizing valve 3 and the pressure equalizing valve 4 on the pressure equalizing pipeline, the system further includes:

[0034] In the flow direction of the gas in the pressure equalization line 2 and the fuel gas ...

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Abstract

The invention provides a system for guaranteeing normal shut-down sulfur blow in a sulfur recovery process. The system comprises a natural gas output pipeline, a balance pipeline connected with the natural gas output pipeline in parallel, a balance valve arranged on the balance pipeline, a fuel gas pipeline and a release flare pipeline, and also comprises a first pipeline and a control valve group, wherein the first pipeline is arranged in the flow direction of a gas in the fuel gas pipeline, one end of the first pipeline is arranged behind the balance valve, the other end is arranged on the fuel gas pipeline, the first pipeline connects the balance pipeline with the fuel gas pipeline, and the control valve group is arranged on the first pipeline, and is used for controlling the pressure of a gas in the first pipeline. The system can effectively meet fuel gas required by emergency shut-down of a sulfur recovery workshop section, is safe and reliable, and can reduce the investment of enterprises and increase the economic benefit.

Description

technical field [0001] The invention relates to the technical field of sulfur recovery. Specifically, the present invention relates to a system for ensuring normal shutdown and blowing of sulfur during the sulfur recovery process. Background technique [0002] In recent years, due to increasingly stringent requirements for environmental protection, countries all over the world have attached great importance to the development and application of sulfur recovery technology. In my country's chemical industry, most of the sulfur in coal and petroleum is recovered by the Claus sulfur recovery method. [0003] Since the first Claus unit was proposed in 1883, technologies such as Super Claus, Clinsulf-SDP, improved CBA and LT-SCOT have been developed for sulfur recovery and tail gas treatment. The Super Claus process adds a selective catalytic oxidation reaction section on the basis of the conventional Claus process, which converts the residual H in the process gas from the last ...

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Application Information

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IPC IPC(8): C01B17/04
Inventor 宋长睿胡海洋梁超
Owner 内蒙古大唐国际克什克腾煤制天然气有限责任公司
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