Anaerobic pyrolysis purification process

A purification process and pyrolysis technology, which is applied in the fields of combustible gas purification, combustible gas purification/transformation, and petroleum industry, etc., can solve the problems of low utilization rate of resources, poor quality of straw gas, etc. The effect of reducing the design temperature

Active Publication Date: 2013-06-12
光谷蓝焰(团风)新能源有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects and problems of poor straw gas quality and low resource utilization rate in the prior art, and provide an anaerobic pyrolysis purification process with good straw gas quality and high resource utilization rate

Method used

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  • Anaerobic pyrolysis purification process
  • Anaerobic pyrolysis purification process

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Embodiment

[0042] The anaerobic pyrolysis purification process includes the following steps in turn:

[0043] Gas generation step: put the formed straw sticks or other straw materials into the retort 11 first, then heat the straw sticks or other straw materials in the retort 11 by the pyrolysis furnace 1, and the straw sticks or other straw materials are High-temperature straw gas is generated after pyrolysis, wherein, the operation method for dry distillation 11 is as follows: firstly open the vent 21 of tar separator 2, then heat dry distillation kettle 11 for 2 hours to make the temperature reach 150°C, and then The discharge port 21 of the tar separator 2 is closed, then the discharge ports of No. 1 gas filter 8 and No. 2 gas filter 9 are opened, and the heating is continued for 1 hour to make the temperature rise to 250° C., then No. 1 gas filter 8 1. The discharge port of the No. 2 gas filter 9 is closed, and the Roots blower unit 22 is started again, and then the heating is contin...

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Abstract

The invention discloses an anaerobic pyrolysis purification process. The process comprises the following steps of: hermetically heating a straw material to generate straw gas; introducing the straw gas into a tar separator, a first-level cooling separator and a second-level cooling separator sequentially, and cooling to remove most part of tar; introducing the cooled straw gas into a No.1 gas-liquid separator, a neutralization separator and a No.2 gas-liquid separator sequentially to remove most part of moisture; introducing the dewatered straw gas into a separating column to remove the moisture, the tar and vinegar liquid again; introducing into a Roots fan set, a No.1 gas filter and a No. 2 gas filter sequentially to filter gas impurities out; and introducing the filtered straw gas intoa gas storage cabinet, and introducing the removed moisture, tar and vinegar liquid into an oil-water separation tank. By the process, the generated straw gas has higher quality, the utilization ratio of resources is relatively high, production cost is relatively low, production efficiency is relatively high, and safety is relatively high.

Description

technical field [0001] The invention relates to a purification process of pyrolysis gas, in particular to an oxygen-free pyrolysis purification process, which is particularly suitable for the production of straw gas with high purity and high cleanliness. Background technique [0002] At present, as an effective way to utilize biomass resources on a large scale, biomass dry distillation technology has been paid more and more attention by the society. The existing biomass dry distillation technology generally includes pyrolysis furnace, cooler, gas-liquid separator, tar adsorber and gas storage cabinet. But the biomass gas produced by it, such as straw gas, often contains a lot of impurities, such as tar, water, etc., which will not only reduce the heat generated during combustion, but also cause accidents. [0003] The Chinese patent authorization announcement number is CN2698791Y, and the utility model patent whose authorization announcement date is May 11, 2005 discloses a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02C10B57/00C10K1/00C10K1/04C10K1/12C10K1/32C10K1/06
CPCY02E50/10
Inventor 熊建何涛
Owner 光谷蓝焰(团风)新能源有限公司
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