Purification system of straw quick thermal cracking products

A technology of purification system and cracking system, which is applied in the field of purification system of rapid thermal cracking products of straw, can solve problems such as difficulties in purification and treatment of biomass oil and gas, and achieve the effects of improving performance, high quality, and improving thermal stability

Inactive Publication Date: 2013-02-13
吉林省颐民宝新能源开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Because of this, unlike crude oil distillation and refining of coal liquefaction components, the purification of biomass oil and gas after thermal cracking is more difficult

Method used

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  • Purification system of straw quick thermal cracking products
  • Purification system of straw quick thermal cracking products

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Embodiment 1

[0027] Example 1. A purification system for fast pyrolysis products of straw, such as figure 1 , figure 2 shown. It includes a trough 2 for crushing straw materials, a silo 10 for transporting the material in the trough 2 to it through a distributor 21, a cracking furnace 3 connected to the silo 10, and a material outlet of the cracking furnace 3. The pyrolysis system dust collector 4. The hot air outlet of the air preheater 11 is connected to the bottom of the cracking furnace 3 . The bottom outlet of the cracking system dust collector 4 is connected with the carbon powder cooler 7, and the top outlet of the cracking system dust collector 4 is connected with the inlet of the rectification washing tower 9. The top outlet of the carbon powder cooler 7 is connected to the carbon powder dust collector 8 , the bottom outlet of the carbon powder dust collector 8 is connected to the carbon powder storage tank 14 , and the top gas outlet of the carbon powder dust collector 8 is ...

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Abstract

The invention relates to a purification system of straw quick thermal cracking products. The system comprises a crushing device, a trough, a storage hopper, a cracking furnace and a cracking system dust catcher, wherein an air preheater is connected with the bottom of the cracking furnace; the bottom outlet of the cracking system dust catcher is connected with a carbon powder cooler, while the top outlet is connected with the inlet of a rectification washing tower; the top of the carbon powder cooler is connected with a carbon powder dust catcher, while the bottom outlet is connected with a carbon powder storage trough and the top fuel gas outlet is connected with the fuel gas inlet of the cracking furnace; the bottom outlet of the rectification washing tower discharges straw heavy oil through a tower bottom cooler and a reflux pump, while the top is connected with an oil-water separator through a tower top condenser; and the oil-water separator respectively discharges light oil and water. The purification system can improve the thermal stability, thermal value and output capacity of biological carbon and biomass oil obtained through straw quick thermal cracking, eliminates solid suspended substances in oil products to improve the quality of the oil products, provides products with stable quality and makes full use of domestic straw resources.

Description

technical field [0001] The invention belongs to the technical field of pyrolysis of straw, and more specifically relates to the design and innovation of a purification system for fast pyrolysis products of straw. Background technique [0002] Biomass pyrolysis refers to the thermal degradation of biomass under the condition of complete anoxic or limited oxygen supply, and finally produces char, condensable gas (biofuel) and combustible gas (non-condensable). Biomass pyrolysis is a complex thermochemical reaction process, including reactions such as molecular bond breaking, isomerization, and small molecule polymerization. Hemicellulose and cellulose mainly produce volatile substances, while lignin mainly breaks down into char. [0003] The pyrolysis process is carried out layer by layer from the outside to the inside. When the biomass particles are heated, they are quickly cracked into charcoal and volatile matter. The primary cracking reaction generates biochar, primary b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02C10K1/08C10K1/04
CPCY02E50/14Y02E50/10Y02P20/129
Inventor 丁赤民李建隆
Owner 吉林省颐民宝新能源开发有限公司
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