Purification device and method for pyrolysis non-condensable gas of waste tires

A technology for purifying device and waste tires, applied in chemical instruments and methods, combination devices, separation methods, etc., can solve the problems of not mentioning the basis of flue gas composition index, the basis of flue gas combustible gas, not mentioning flue gas composition index, etc. , to achieve the effect of complete waste gas treatment process, meet the requirements of thermal energy utilization, and reduce pollution

Pending Publication Date: 2020-07-10
沈阳鑫迪环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Invention patent CN2018102075354 provides a solid waste pyrolysis gas purification and utilization system, which can make full use of the calorific value of combustible gas and tar generated by pyrolysis, and at the same time convert harmful substances into fully oxidized flue gas, solving the problem of "dioxin" British" and toxic heavy metal pollution such as mercury, lead, cadmium, etc., but this method does not mention the composition index of the purified flue gas and the basis for the flue gas to be used as a combustible gas
However, this method also does not mention the composition index of flue gas after purification.

Method used

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  • Purification device and method for pyrolysis non-condensable gas of waste tires
  • Purification device and method for pyrolysis non-condensable gas of waste tires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for purifying non-condensable gas by pyrolysis of waste tires described in this embodiment comprises the following steps:

[0038] The crude non-condensable gas from waste tire pyrolysis enters the electric tar collector to capture and remove a small amount of oil doped in the non-condensable gas. The working voltage is 34kV, and the captured oil is sent to the tar storage tank for collection; Impurities and moisture in condensed gas; non-condensable gas after dehumidification and impurity removal passes through a box-type desulfurization device, using nano-zinc oxide as a desulfurizer to desulfurize at room temperature, and the removal rate of hydrogen sulfide in non-condensable gas after desulfurization can reach 97.2% , the content is 5mg / m 3 . Example 1 meets the hydrogen sulfide content requirements of natural gas II.

[0039] project Non-condensable gas after purification Natural gas class II Hydrogen sulfide / (mg / m 3 )

Embodiment 2

[0041] A method for purifying noncondensable gas by pyrolysis of waste tires described in this embodiment comprises the following steps: the crude noncondensable gas from pyrolysis of waste tires enters an electric tar catcher to capture and remove a small amount of oil doped in the noncondensable gas, The working voltage is 32kV, and the captured oil is sent to the tar storage tank for collection; after that, the impurity and moisture in the non-condensable gas are filtered out with a filter; the non-condensable gas after dehumidification and impurity is passed through a box-type desulfurization device, and nano-zinc oxide is used As a desulfurizer, desulfurize at room temperature, the removal rate of hydrogen sulfide in non-condensable gas after desulfurization can reach 93.4%, and the content is 12mg / m 3 .

[0042] Example 2 meets the hydrogen sulfide content requirements of natural gas class II.

[0043] project Non-condensable gas after purification Natural...

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Abstract

The invention provides a purification device and method for pyrolysis non-condensable gas of waste tires. The method specifically comprises the following steps: oil in the waste tire pyrolysis non-condensable gas is removed through an electric coke catcher, then the waste tire pyrolysis non-condensable gas enters a filter to filter out impurities and water in the non-condensable gas, then the waste tire pyrolysis non-condensable gas enters a box type desulfurization device, hydrogen sulfide in the waste tire pyrolysis non-condensable gas is removed through a self-made zinc oxide desulfurizer,and the purified non-condensable gas can continue to serve as a heat source and can also serve as crude feed gas for natural gas. The device comprises an electric coke catcher, a tar storage tank, a filter, a material receiving tank, a desulfurization device and a gas collecting device. The coke catching rate is 99.99%, the impurity removal rate ranges from 99.5% to 99.8%, the desulfurization efficiency is 93.4%-97.2%, the quality of the produced non-condensable gas product is stable and the purification requirement of the content of class II hydrogen sulfide is met.

Description

technical field [0001] The invention relates to the field of air pollution desulfurization, in particular to a purification device and method for pyrolyzing non-condensable gas from waste tires. Background technique [0002] Waste tires are "black pollution", but if they can be used as resources, waste can be turned into treasure, making it "black gold". Pyrolysis technology is known as the ultimate treatment technology for waste tires. [0003] The pyrolysis of waste tires will produce pyrolysis oil gas, and after condensation and separation, the product oil and about 5%-10% non-condensable gas will be obtained. In addition to water vapor (10%-20%), these non-condensable gases also contain a large amount of CO. h 2 , to CH 4 Mainly hydrocarbons and other high calorific value substances, the calorific value is about 40 ~ 55MJ / m 3 , which is much higher than the calorific value of Class I natural gas. This is a huge energy wealth. It can not only be recycled as pyrolysis ...

Claims

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Application Information

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IPC IPC(8): C10L3/00B01D50/00
CPCB01D50/00C10L3/00
Inventor 张正洁姜媛媛佟永顺朱合威
Owner 沈阳鑫迪环境技术有限公司
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