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Novel biomass pyrolysis carbonization system and method

A biomass pyrolysis and biomass technology, applied in the fields of biofuels, special forms of dry distillation, petroleum industry, etc., can solve the problems of non-recovery of heat energy, incineration, pollution of the atmosphere, etc., to save costs, reduce heat loss, and save energy. Effect

Inactive Publication Date: 2021-01-01
TIANJIN ENEW ENVIRONMENTAL PROTECTION ENGCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of agricultural and forestry wastes are produced in our country every year. As the most important biomass raw material, the annual output of straw is about 1 billion tons. Smog pollutes the atmosphere and wastes energy
[0004] The utilization rate of raw materials in the existing biomass carbonization process is low, the yield of biomass charcoal is low, and a large amount of heat energy generated in the carbonization stage has not been recovered, resulting in waste of resources and energy

Method used

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  • Novel biomass pyrolysis carbonization system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The biomass 21 used is wheat straw, the wheat straw is put into the pretreatment pool 1, and the first dosing device 8 is used to add Na 2 CO 3 Solution, add medicine while spiral stirring, adjust the pH to 8.50, and then stay for 8 hours; use the conveyor belt to enter the drier 2 after soaking the wheat straw, set the drying temperature to 100 ° C, dry for 5 hours, and the moisture content of the dried wheat straw will drop to 8%; transfer the dried wheat straw to the crushing device 3, stir and crush for 30 minutes; then send the crushed wheat straw to the granulation device 4, the diameter of the granulation is 20mm; after granulation, the material is sent to the carbonization furnace 5 , the initial heating rate of the carbonization furnace 5 was 20°C / min, and after the temperature was raised to 400°C, the carbonization was carried out for 15 minutes to obtain the crude product of the carbonization product; After the combustible gas is collected, it enters the flu...

Embodiment 2

[0044] The biomass 21 used is peanut shells, the peanut shells are put into the pretreatment pool 1, and the first dosing device 8 is used to add Na 2 CO 3 Solution, add medicine while spiral stirring, adjust the pH to 9.50, and then stay for 12h; use the conveyor belt to enter the drier 2 after soaking the peanut shells, set the drying temperature to 150°C, dry for 3h, and the moisture content of the dried peanut shells will drop to 5%; send the dried peanut shells to the crushing device 3, stir and crush for 60 minutes; then send the crushed peanut shells to the granulation device 4, and the granulation diameter is 10mm; after granulation, the material is sent to the carbonization furnace 5 , the initial heating rate of the carbonization furnace 5 is 50°C / min. After the temperature is raised to 600°C, the carbonization is carried out for 30 minutes to obtain the crude product of the carbonization product; the pyrolysis gas generated during the carbonization process is mainly...

Embodiment 3

[0046]The biomass 21 used is corn stalks, the corn stalks are put into the pretreatment pool 1, and the first dosing device 8 is used to add K 2 CO 3 Solution, add medicine while spiral stirring, adjust the pH to 9.50, and then stay for 12 hours; use the conveyor belt to enter the drier 2 after soaking the corn stalks, set the drying temperature to 150 ° C, dry for 4 hours, and the moisture content of the dried corn stalks will drop to 7%; transfer the dried corn stalks to the crushing device, stir and crush them for 60 minutes; then send the crushed corn stalks to the granulation device with a granulation diameter of 20mm; after granulation, transfer the material to the carbonization furnace 5 for carbonization The initial heating rate of furnace 5 was 50°C / min. After the temperature was raised to 600°C, carbonization was carried out for 30 minutes to obtain the crude product of the carbonization product; the pyrolysis gas generated during the carbonization process was mainly...

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Abstract

The invention discloses a novel biomass pyrolysis carbonization system and method, the novel biomass pyrolysis carbonization system comprises a pretreatment pool, a dryer, a crushing device, a granulation device, a carbonization device and a pyrolysis gas recovery device, the pyrolysis gas recovery device is connected with the carbonization device and a drying device. A first medicine adding device is connected to the pretreatment pool. The invention has the beneficial effects that pyrolysis gas generated in the biomass carbonization process passes through the heat energy recovery system and then is combusted again to heat the carbonization device and the drying device, the heat loss is reduced, the heat energy loss is reduced, the treatment cost is saved, and the biomass carbonization treatment system conforms to the cyclic utilization principle of resources.

Description

technical field [0001] The invention relates to the field of biomass pyrolysis carbonization treatment, in particular to a novel biomass pyrolysis carbonization system and method. Background technique [0002] Biomass includes rice husk, straw, forestry residues, etc., and has the advantages of vast production area, large output, and renewable, but at the same time, the disadvantages of biomass as fuel, such as large volume, low density, and inconvenient transportation and storage, have hindered the development of biomass. Prospects for the development of renewable energy. [0003] Biomass pyrolysis and carbonization technology is a process in which biomass is pyrolyzed under anaerobic or anoxic conditions to obtain carbonaceous materials. A large amount of agricultural and forestry wastes are produced in our country every year. As the most important biomass raw material, the annual output of straw is about 1 billion tons. Smog pollutes the atmosphere and wastes energy. ...

Claims

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Application Information

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IPC IPC(8): C10B53/02
CPCC10B53/02Y02E50/10
Inventor 张春苗王学科马竞男
Owner TIANJIN ENEW ENVIRONMENTAL PROTECTION ENGCO LTD
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