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Method for removing tar oil from gasified combustible gas by using waste rubber and plastic crack oil

A technology for cracking oil and gas, used in the petroleum industry, gasoline stabilization, preparation of liquid hydrocarbon mixtures, etc., can solve the problems of white pollution, waste of resources, black pollution, etc., and achieve increased calorific value, increased calorific value, and stable gas quality. Effect

Inactive Publication Date: 2008-05-28
南京绿展能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If these wastes cannot be properly disposed of, it will not only waste resources, but also cause serious "white pollution" and "black pollution".

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The gas to be purified is the gasification gas of sludge, the gasification temperature is 600°C, the pressure is -500Pa, and the flow rate is 1000Nm 3 / h.

[0032] Send 10 tons / day of waste plastics, rubber and other cracking organic matter into the rotary cracking furnace. The cracking temperature of the cracking furnace is 300°C, and the pressure is -500Pa. The cracking reaction of organic matter produces oil-gas mixture and solid charcoal. The solid carbon is discharged through the outlet and refined into toner.

[0033] The oil and gas mixture discharged from the rotary cracking furnace is separated from the oil and gas by the cooling tower to obtain mixed oil and tail gas, and the mixed oil is sent to the rectification tower for component fractionation. Coal gasification gas is also sent to this rectification tower. The rectification tower is used not only as a fractionation equipment for mixed oil products, but also as a tar washing tower.

[0034] The mixed ...

Embodiment 2

[0037] The gas that needs to be purified is RDF (generally refers to the combustibles after treatment of garbage) gasification gas, the gasification temperature is 800°C, the pressure is 500Pa, and the flow rate is 2000Nm 3 / h.

[0038] 40 tons / day of waste plastics, rubber and other cracking organic matter are sent to a fixed bed cracking furnace with a cracking temperature of 450°C and a pressure of -5000Pa. The cracking reaction of organic matter produces oil-gas mixture and solid charcoal. The solid charcoal is discharged from the discharge port and then sent to the RDF gasifier as a raw material for gasification.

[0039] The oil and gas mixture discharged from the fixed bed cracking furnace is separated from oil and gas by rectification tower. RDF gasification gas is also sent to the rectification tower. The rectification tower is used not only as oil and gas fractionation equipment, but also as a tar washing tower.

[0040] The oil-gas mixture and the tar-containing...

Embodiment 3

[0043] The gas to be purified is biomass gasification gas, the gasification temperature is 1000°C, the pressure is 0.5MPa, and the flow rate is 50000Nm 3 / h.

[0044] Send 70 tons / day of waste plastics, rubber and other organic matter for pyrolysis into the tubular pyrolysis furnace. The pyrolysis temperature of the pyrolysis furnace is 650°C and the pressure is 0.5MPa. The cracking reaction of organic matter produces oil-gas mixture and solid charcoal. The solid carbon is discharged through the discharge port and then refined into activated carbon.

[0045] The oil-gas mixture discharged from the tube cracking furnace is separated by cooling tower to obtain mixed oil and tail gas, and the mixed oil is sent to the rectification tower for component fractionation. The biomass gasification gas is sent to the tar washing tower, which is a kind of absorption tower.

[0046] The rectification tower separates the distillate at 250-350°C as waste rubber and plastic washing oil frac...

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Abstract

The invention relates to a process for removing tar oil with gasification gas. At present, the operating cost and the maintenance cost of the present process for removing tar oil are high, and the second pollution of the waste water of tar oil is brought out. The concrete steps of the invention are that waste rubber and plastic used for schizolysis are conveyed to a schizolysis furnace and oil gas mixture and solid charcoal are generated after the heat schizolysis reaction, the oil gas mixture produced by the schizolysis reaction is separated via a rectifying tower and then oil products and gas are generated, and the distillate with the temperature of 200-350 DEG C is separated out as oil washing distillation cut which is employed to absorb the tar oil in the gasification gas which contains tar oil. Compared with the existing technology, the process for removing tar oil in gasification gas has high process reliability, increases the thermal value of the gas, reduces the operation cost , produces no waste water of tar oil, and promotes the added value of the tar product .

Description

technical field [0001] The invention relates to a gas purification treatment method, in particular to a purification treatment method for removing tar in gasification gas by using waste rubber and plastic pyrolysis oil. Background technique [0002] Gas can be used as fuel, such as cooking utensils, boilers, gas generator sets or power machinery, etc., and can also be used as chemical raw materials. However, efficient gas utilization equipment such as internal combustion engines often have strict requirements on the quality of gas. However, currently used gasification gas, such as biomass gas, coal gas, etc., has the problem of high tar content in the gas, and due to the difficulty of purification, the gas produced by small gas production units is generally only used for industrial Furnace fuel, whose economic benefits have not been maximized, has restricted the further development of the gas industry to a certain extent. [0003] There are many raw materials for making ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G7/02C10G1/10
Inventor 马加德
Owner 南京绿展能源有限公司
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