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System and method for removing organic sulfur in coal gas

A technology of organic sulfur and gas, applied in the direction of combustion method, combustible gas purification, combustible gas purification/transformation, etc.

Pending Publication Date: 2021-04-16
CERI ENERGY & AIR PROTECTION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, there is no system and method in the prior art that is small in investment, simple in process, and suitable for the removal of organic sulfur in gas

Method used

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  • System and method for removing organic sulfur in coal gas
  • System and method for removing organic sulfur in coal gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] This embodiment provides a system for removing organic sulfur in gas, wherein the structural diagram of the system for removing organic sulfur in gas is as follows figure 1 shown, from figure 1 As can be seen, the system includes:

[0097] Three desulfurization towers (in the form of 2 for 1 standby), namely the first desulfurization tower 5, the second desulfurization tower 6, the third desulfurization tower 7, the incinerator 8, the regenerative gas blower 10 and the air blower 11;

[0098] The incinerator 8 includes a main combustion chamber and a flue gas discharge chamber, and a gas heating device 13, a steam generating device 12 and an air preheating device 14 are arranged in the flue gas discharge chamber;

[0099] The air inlets of the first desulfurization tower 5, the second desulfurization tower 6, and the third desulfurization tower 7 are respectively connected with the gas inlet main pipe 1 through the gas inlet branch pipes, and the gas inlet branch pipes...

Embodiment 2

[0109] This embodiment provides a system for removing organic sulfur in gas, wherein the structural diagram of the system for removing organic sulfur in gas is as follows figure 2 shown, from figure 2 As can be seen, the system includes:

[0110] Three desulfurization towers (in the form of 2 for 1 standby), namely the first desulfurization tower 5, the second desulfurization tower 6, the third desulfurization tower 7, the incinerator 8, the regenerative gas blower 10 and the air blower 11;

[0111] The incinerator 8 includes a main combustion chamber and a flue gas discharge chamber, which is provided with a gas heating device, a steam generating device 12 and an air preheating device;

[0112] The air inlets of the first desulfurization tower 5, the second desulfurization tower 6, and the third desulfurization tower 7 are respectively connected with the gas inlet main pipe 1 through the gas inlet branch pipes, and the gas inlet branch pipes are all provided with cut-off v...

Embodiment 3

[0124] This embodiment provides a method for removing organic sulfur in gas, wherein the method for removing organic sulfur in gas utilizes the system for removing organic sulfur in gas provided in Example 1, which includes the following steps:

[0125] The coal gas used in this embodiment is blast furnace gas after rough purification, and the total sulfur in the gas is less than 300mg / m 3 Greater than or equal to 100mg / m 3 , gas pressure is 12KPa, dust content is less than 10mg / m 3 , gas temperature is 80℃, flow rate is 300000Nm 3 / h;

[0126] Open the first cut-off valve V1, the third cut-off valve V3, the seventh cut-off valve V7, and the ninth cut-off valve V9, and make the eighth cut-off valve V8, the tenth cut-off valve V10, the second cut-off valve V2, and the fourth cut-off valve V4 Wait until other valves are closed;

[0127] The blast furnace gas enters the first desulfurization tower 5 and the second desulfurization tower 6 respectively through the gas inlet mai...

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Abstract

The invention provides a system and a method for removing organic sulfur in coal gas. The system comprises at least two desulfurizing towers, an incinerator, a regenerated gas fan and an air blower, wherein a gas heating device, a steam generating device and an air preheating device are at least arranged in the smoke exhaust chamber of the incinerator, the gas inlets of the desulfurizing towers are respectively connected with a coal gas inlet main pipe through coal gas inlet branch pipes in an on-off manner, the coal gas inlet branch pipes are respectively connected with regeneration desorption gas branch pipes, the regeneration desorption gas branch pipes are respectively connected with a regeneration desorption gas main pipe in an on-off manner, the gas outlets of the desulfurizing towers are respectively connected with a clean coal gas outlet main pipe through clean coal gas outlet branch pipes in an on-off manner, the clean gas outlet branch pipes are also respectively connected with regenerated gas inlet branch pipes, the regenerated gas inlet branch pipes are respectively connected with a regenerated gas inlet main pipe in an on-off manner, the clean coal gas outlet main pipe is connected with the inlet of the regenerated gas fan, the outlet of the clean coal gas outlet main pipe is connected with the regenerated gas inlet main pipe and the inlet of the gas heating device through pipelines, and the outlet of the gas heating device is in on-off connection with the regenerated gas inlet main pipe through a pipeline.

Description

technical field [0001] The invention relates to a system and method for removing organic sulfur in gas, belonging to the technical field of gas desulfurization. Background technique [0002] Sulfur in coal gas (including blast furnace gas, coke oven gas, producer gas, etc.) is mainly divided into inorganic sulfur (mainly hydrogen sulfide) and COS, CS 2 , sulfide, mercaptan, thiophene and other organic sulfur. Inorganic sulfur (mainly H 2 S) is easy to remove, while organic sulfur is extremely difficult to remove. After the gas is purified, because it contains a large amount of organic sulfur, the sulfur content in the exhaust gas discharged by subsequent users exceeds the standard. With the increasingly stringent environmental protection requirements, the removal of organic sulfur in gas is very necessary. Generally, the removal methods of organic sulfur include adsorption method, pyrolysis method, hydrolysis method and hydrogenation conversion method. The adsorption me...

Claims

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Application Information

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IPC IPC(8): C10K1/32C10K1/22C10K1/20F23G7/06
CPCY02P20/129
Inventor 孙加亮杨伟明杜雄伟高峰吴英军叶小虎
Owner CERI ENERGY & AIR PROTECTION TECH CO LTD
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