Device and method for preparing in-situ molded biochar with high specific surface area

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United States of America

PATENT NO 12151228
SERIAL NO

17786944

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Abstract

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A device and method for preparing in-situ molded biochar with high specific surface area. Crushed and mixed biomass and modifier are fed into a hot pressing and pyrolysis device, and hot-pressing molding and pyrolysis carbonization are completed synchronously, which solves the problem of multiple steps and complicated equipment in the existing preparation process for molded biochar material. In-situ bonding molding is realized by adhesion, bridging, cross-linking and mechanical interlocking functions of low-temperature molten & softened lignin and pyrolytic tar. No additional cross-linking agent is needed in this process, so the production cost is low. Covering and suffocating actions of trace flame retardant modifier are utilized to reduce the temperature of biomass pyrolysis carbonization, inhibit excessive ablation and accelerate polycondensation reaction, thus to improve the specific surface area and yield of a product, and improve the cost performance of the product.

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Patent Owner(s)

Patent OwnerAddress
DALIAN UNIVERSITY OF TECHNOLOGY116024 NO 2 LING ROAD GANJINGZI DISTRICT LIAONING DALIAN DALIAN LIAONING PROVINCE 116024

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Yuan Liaoning, CN 408 2246
Jia, Yongfeng Liaoning, CN 7 0
Li, Aimin Liaoning, CN 45 71
Wang, Shaofeng Liaoning, CN 19 30
Wang, Xin Liaoning, CN 1487 14353

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