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A process for the centralized recovery of coal gas and oil gas in the coal chemical industry

A technology of coal chemical industry and coal gas, which is applied in the field of centralized recovery of coal gas and oil gas in the coal chemical industry, to achieve the effects of ensuring safety, reducing operating costs and notable environmental protection effects

Active Publication Date: 2021-09-17
HENAN DRAGON INTO COAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the cost of membrane separation technology is expensive, but for environmental protection and safety, it has to be used

Method used

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  • A process for the centralized recovery of coal gas and oil gas in the coal chemical industry
  • A process for the centralized recovery of coal gas and oil gas in the coal chemical industry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the coal gas purification process is that the raw coal gas produced by coal pyrolysis is directly cooled by spraying water → gas-liquid separation → horizontal cooling for oil removal → electric capture for oil removal → fan pressurization → desulfurization → deammonization → benzene elution.

[0029] A process for the centralized recovery of coal gas and oil gas in the coal chemical industry. The tar tanks in the coal chemical industry and the co-production of tar to produce gasoline and diesel oil tanks and diesel tanks, and the tank tops of underground emptying tanks are respectively equipped with breathing pipes. The breathing pipeline is connected with the gas positive pressure pipeline before the benzene eluting device after the pressurized fan in the gas purification to form a pipe network together, and the gas pressure in the pipe network is consistent.

[0030] The gas pressure in each tank is consistent with the gas space of the enti...

Embodiment 2

[0034] Such as figure 2 As shown, the purification process of coal gas is that the raw coal gas produced by coal pyrolysis is directly cooled by spraying water → gas-liquid separation → horizontal cooling for oil removal → electric capture for oil removal → fan pressurization → benzene elution → desulfurization → ammonium sulfate, gas get cleansed.

[0035] The tar tanks and tar co-production gasoline and diesel tanks for producing gasoline and diesel oil, and the breathing pipes on the top of the tanks in the underground emptying tanks are still connected to the gas positive pressure pipes in front of the benzene eluting device after the pressurized fan in the gas purification process. Form a pipe network.

[0036] The difference from the gas purification process in Example 1 is that the benzene elution process in Example 2 is placed in front of the desulfurization and ammonium sulfate process. The purpose is to remove the organic matter before the gas desulfurization, so a...

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Abstract

The invention discloses a process for centralized recovery of coal gas and oil gas in the coal chemical industry, belonging to the field of coal chemical industry. Connect the tar tanks in the coal chemical industry, as well as the gasoline tanks for co-production of tar to produce gasoline and diesel, and the top breathing pipes of the diesel tanks with the gas pipelines in front of the benzene eluting device for gas purification to form a gas oil and gas pipeline network. Form a structure in which the gas pressure in each tank is consistent with that of the entire pipe network. With the change of the liquid's height and position in each tank, the gas, oil and gas are automatically filled or discharged to realize automatic compensation of gas pressure. The solvent washing oil inside the benzene eluting device has strong compatibility with organic substances such as volatile small molecular hydrocarbons and benzene in coal tar, gasoline and diesel oil, so it is absorbed, and the collection rate of volatiles can reach 99%. The device and method are simple and easy to implement, and have excellent cost advantages and environmental protection advantages.

Description

technical field [0001] The invention relates to a process for centralized recovery of coal gas and oil gas in the coal chemical industry, which belongs to the technical field of coal chemical oil gas recovery, and specifically relates to the technical field of coal chemical industry and tar deep processing. Background technique [0002] Crude oil and gasoline and other light oil products stored and sold in oil depots contain a large amount of light hydrocarbon components, which are highly volatile, so it is inevitable that some liquid hydrocarbon components will vaporize and enter the atmosphere in the form of oil and gas , not only waste energy, but also cause environmental pollution and affect human health. [0003] In order to reduce the volatilization of oil and gas, people have designed floating roof tanks, and adopted measures for cooling and heat insulation of the oil tank, but the use of floating roof tanks and breathing valves can only reduce oil and gas evaporation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14B01D50/00B01D53/00
CPCB01D50/00B01D53/00B01D53/002B01D53/1487
Inventor 朱书成王希彬
Owner HENAN DRAGON INTO COAL TECH CO LTD
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