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Biomass pyrolysis system and method for pyrolyzing biomass

A biomass pyrolysis and biomass technology, applied in the chemical industry, can solve the problems of difficulty in realizing high-value production of biomass resources, increasing system operating costs, and unstable product quality, achieving high energy utilization and low operating costs. , the effect of efficient pyrolysis

Active Publication Date: 2017-05-03
SHENWU TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing biomass pyrolysis technology has defects such as uneven heating and unstable product quality, making it difficult to achieve high-value production of biomass resources, and the pyrolysis process requires an external heat source, which increases the operating cost of the system
[0004] Therefore, low-cost, high-efficiency biomass pyrolysis and co-production of high-quality bio-oil and gas systems and methods need to be studied

Method used

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  • Biomass pyrolysis system and method for pyrolyzing biomass

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Embodiment 1

[0059] Utilize the device of the present invention, the structural representation of device is as figure 1 As shown, wood chips are used as raw materials to produce bio-oil and gas, and the pyrolysis process is as follows image 3 As shown, the specific steps are as follows:

[0060] (1) Taking wood chips with a particle size of 2-3cm and a water content of less than 20% as an example, the wood chips first enter the rotary kiln dryer for material drying at a drying temperature of 150-200°C, and the dried wood chips enter the silo ;

[0061] (2) The dry sawdust and the biochar heat carrier enter the pyrolysis furnace through the raw material inlet and the heat carrier inlet respectively at a ratio of 5:1, and after being fully mixed by the mixing slide, they enter the pyrolysis zone evenly and start pyrolysis;

[0062] (3) The obtained pyrolytic charcoal (500-550°C) is mixed with preheated air (200-300°C) and enters the combustion riser for incomplete combustion, and the prod...

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Abstract

The invention discloses a biomass pyrolysis system and a biomass pyrolysis method. The biomass pyrolysis system comprises a pyrolysis furnace, a combustion lift pipe, a separation device, a biochar heat carrier pipeline and a smoke flue. According to the biomass pyrolysis system, efficient biomass pyrolysis is realized through simultaneous heating by the aid of internal biochar heat carriers and external smoke.

Description

technical field [0001] The invention relates to the field of chemical engineering, in particular to a biomass pyrolysis system and a method for pyrolyzing biomass. Background technique [0002] The excessive exploitation and utilization of non-renewable fossil energy such as coal and oil have made the energy and environmental problems on the earth more and more serious, and the task of finding a clean alternative energy is also imminent. Biomass resources are the fourth largest resources on the earth, its reserves are second only to coal, oil and natural gas, and it is also the clean renewable energy with the largest reserves, and it is one of the most suitable alternative energy sources for fossil energy. However, the utilization efficiency of biomass resources is not high, and most agricultural wastes are burned directly on farmland, which not only causes environmental pollution, but also causes energy waste. Therefore, the efficient use of biomass resources can not only ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10B53/02C10B51/00
CPCY02E50/10
Inventor 赵延兵李史吴道洪
Owner SHENWU TECH GRP CO LTD
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