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Variable cascade temperature regulation biomass charring device

A biomass and cascade technology, applied in biofuels, special forms of dry distillation, petroleum industry, etc., can solve problems such as uncontrollable heating rate, achieve the effects of avoiding errors, accurate temperature measurement, and reducing energy consumption

Inactive Publication Date: 2015-08-26
ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of uncontrollable temperature rise rate in the existing biomass pyrolysis technology mentioned in the technical background, and disclose a variable step temperature-adjusted biomass continuous carbonization equipment. pyrolysis furnace

Method used

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  • Variable cascade temperature regulation biomass charring device
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  • Variable cascade temperature regulation biomass charring device

Examples

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Embodiment

[0036] Example: Production of biochar using corn stalks

[0037] Biochar is produced by adopting the variable step temperature-adjusted biomass continuous carbonization equipment of the present invention, the raw material is corn stalks, the length is about 3-4mm, the moisture content is 10-20%, and the density is about 100kg / m 3 , first close the lower airtight valve of the feeding device, open the upper airtight valve, temporarily store the raw materials in the lower silo, and then open the upper airtight valve and the lower airtight valve alternately after the reaction starts. Then turn on the heating wire switch of the pyrolysis furnace to heat the temperature of each section of the furnace wall to the set value, and at this time open the feed valve and the feed variable frequency motor. The temperature rise rate and the final pyrolysis temperature of the biomass raw material are controlled by different temperature settings at each stage of the pyrolysis furnace and the co...

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Abstract

The invention discloses a variable cascade temperature regulation biomass charring device. The device mainly comprises a feeding unit, a segmented pyrolysis unit, an oil-gas separation unit, a secondary catalytic cracking unit and a waste heat reuse unit. The whole process is regulated through a reaction control system, and the continuous performing of the pyrolytic reaction is guaranteed through continuous sealed feeding and discharging. According to the pyrolysis portion, a variable cascade segmented heating principle is used, so that multi-stage regulation among different heating sections of a pyrolyzing furnace is achieved, and the requirement for different heating speeds during pyrolysis is met. Meanwhile, the pyrolysis gas condensation separation technology, the secondary catalytic cracking tar removing technology, the charcoal continuous cooling technology, the high-temperature pyrolysis gas waste heat reuse technology, the internal and external combined heating pyrolysis charring technology and the like are integrated. The device is applicable to pyrolysis charring of various biomasses in different conditions.

Description

technical field [0001] The invention belongs to the technical field of renewable energy, and specifically relates to a variable step temperature-adjusted biomass continuous carbonization equipment, which is suitable for pyrolysis of various biomass under different conditions. Inner cascaded and segmented temperature-adjustable heating, and can complete the separation and collection of pyrolysis products charcoal-oil-gas, secondary catalytic cracking of tar and waste heat recovery of pyrolysis gas. Background technique [0002] Biochar is a solid product produced by thermal cracking of biomass organic materials in an anoxic or anaerobic environment. It is rich in resources and has a wide range of uses. It can be used not only as a high-quality energy source, but also as a reducing agent, as well as a soil improver, fertilizer slow-release carrier and carbon dioxide sequestration agent. [0003] At present, due to the emphasis on the study of biomass pyrolysis mechanism, some...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B57/02C10B57/00
CPCY02E50/10Y02P20/129
Inventor 赵立欣姚宗路贾吉秀孟海波丛宏斌霍丽丽
Owner ACADEMY OF PLANNING & DESIGNING OF THE MINIST OF AGRI
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