Device and method of reclaim and processing tail gas of sulfur

A technology for tail gas treatment and sulfur recovery, which is applied in separation methods, chemical instruments and methods, sulfur preparation/purification, etc., can solve problems such as sulfur dioxide penetration, incomplete hydrogenation, and large economic losses, so as to simplify the process and reduce the Flow rate and energy saving effect

Inactive Publication Date: 2007-10-17
东营科瑞泛能油气技术服务有限公司
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Problems solved by technology

When the operation is unstable, hydrogenation is very likely to be incomplete, which may cause sulfur dioxide breakthrough accidents, that is, sulfur dioxide enters the subsequent cooling system and MDEA solution abso...

Method used

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  • Device and method of reclaim and processing tail gas of sulfur

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Embodiment 1

[0037]The sulfur recovery and tail gas treatment device for hydrogen production in the reheat furnace has a simple structure and is easy to manufacture. As shown in Figure 1, the device includes a thermal reaction section, a catalytic reaction section, and a reduction absorption section. The thermal reaction section includes the main combustion furnace 1, waste heat Boiler 2 and primary condensing cooler 3, one end of main combustion furnace 1 is connected to hydrogen sulfide gas pipe 27 and air pipe 21, the other end is connected to primary condensing cooler 3 through waste heat boiler 2, and the lower end of primary condensing cooler is connected to liquid The sulfur pipe 22 is connected, and the upper end of the first-stage condensing cooler is connected to the first-stage reheating hydrogen production furnace 4; the catalytic reaction section contains two-stage reheaters, two-stage reactors and two-stage condensing coolers, and the process gas is reheated by two stages Afte...

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Abstract

A sulfur recovery and offgas processing device and a method therefor is characterized in that the device comprises a thermal reaction section, a catalytic reaction section and a reducing absorption section. In the thermal reaction section, hydrogen sulfide acid gas is partly burnt in a main burner (1) to convert into sulfur dioxide, hydrogen sulfide and sulfur dioxide proceed claus reaction to generate process gas such as elemental sulphur, the process gas is cooled by a waste-heat boiler (2) and a primary condensate cooler (3) to obtain liquid sulfur; in the catalytic reaction section, the process gas is reacted through a primary reheat hydrogen furnace (4), a secondary steam reheater (7), two stage reactor (5, 8), then separating liquid sulfur is cooled by two stage condensate cooler (6, 9) then enters into the reducing absorption section; in the reducing absorption section, the process gas is heated by a steam heater (10) then hydrogenizated in a hydrogenation reactor (11), cooled in a process gas cooler (12) and enters into a quench tower (13) which top connecting with bottom of a absorber (16), top of the absorber connects with a incinerator (18), the incinerator connects with a chimney (19).

Description

technical field [0001] The invention relates to a sulfur recovery and tail gas treatment device and a method for sulfur recovery and tail gas treatment, belonging to the field of sulfur recovery and tail gas treatment. Background technique [0002] With the development of science and technology, my country's demand for oil and natural gas is increasing. Some oil and natural gas contain sulfur. In order to produce clean energy, sulfur needs to be removed, usually in the form of hydrogen sulfide. In the treatment of acid gas containing hydrogen sulfide, at present, it is mainly to convert hydrogen sulfide into elemental sulfur as much as possible. The more economical treatment process is that the sulfur recovery rate is about 99%, but it cannot meet the current national environmental protection standard GB16297 "Air Pollutants According to the requirements of the Comprehensive Emission Standard, the content of sulfur dioxide in the exhaust gas is less than or equal to 960mg / m ...

Claims

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Application Information

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IPC IPC(8): C01B17/04B01D53/48B01D53/75C10K1/00
CPCY02P20/129
Inventor 吴炜
Owner 东营科瑞泛能油气技术服务有限公司
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