公开(公告)号：US20240101428A1

公开(公告)日：2024-03-28

申请号：US18013285

申请日：2022-04-27

申请人： SOUTHEAST UNIVERSITY

发明人： Huiyan ZHANG ,  Dongyang JIANG ,  Qingyu LIU ,  Ru HONG ,  Bo PENG ,  Rui XIAO

IPC分类号： C01B32/162 ,  B01J23/86 ,  B01J23/94 ,  C01B3/26

CPC分类号： C01B32/162 ,  B01J23/862 ,  B01J23/94 ,  C01B3/26 ,  B82Y40/00 ,  C01B2203/0277 ,  C01B2203/06 ,  C01B2203/1023 ,  C01B2203/1047 ,  C01B2203/1235

摘要： A meshed catalyst based high-yield preparation and regeneration method for carbon nanotubes and hydrogen includes the following steps: step one, adding waste plastic into a low-temperature pyrolysis section, conducting slow heating, and continuously introducing nitrogen; step two, using a multilayer stainless steel mesh obtained through laminated pressing and vacuum sintering as a catalyst, introducing the volatiles into a high-temperature catalytic section, conducting a catalytic reaction under the action of a meshed stainless steel catalyst obtained through acid etching and calcination pretreatment, generating the carbon nanotubes on a surface of the catalyst, and meanwhile generating high-purity hydrogen; and step three, after temperature drop, conducting ultrasonic treatment on a stainless steel mesh after the reaction, achieving physical stripping of the carbon nanotubes from the stainless steel mesh, then placing the stainless steel mesh subjected to secondary calcination in a system for recycling, and regenerating the carbon nanotubes and the hydrogen.

公开(公告)号：US20230256356A1

公开(公告)日：2023-08-17

申请号：US18012098

申请日：2021-12-20

申请人： SOUTHEAST UNIVERSITY

发明人： Huiyan ZHANG ,  Shuping ZHANG ,  Bo PENG ,  Rui XIAO

IPC分类号： B01D5/00

CPC分类号： B01D5/0027 ,  B01D5/0036 ,  B01D5/0087 ,  B01D5/0057 ,  B01D2202/00

摘要： The present disclosure relates to a pyrolysis bio-oil fractional condensation device and method capable of cooling medium self-circulation. The device includes a primary condensation system, a secondary condensation system and a cooling medium self-regulation heat exchange system. The primary condensation system uses the temperature-regulated cooling medium to condense the macromolecular tar by direct heat exchange with the pyrolysis volatiles. The condensed tar is heated, pushed and scraped with a rotary mechanism to prevent adhesion. The spray liquid in the secondary condensation system exchange heat with the uncondensed volatiles directly for secondary condensation. The cooling medium self-regulation heat exchange system realizes self-circulation and self-balance of the cooling medium mass flow and energy flow by integrating heat absorption during biomass raw material feeding and drying, heat release during volatiles condensation, and heat absorption during pyrolysis char cooling, and realized the independent operation of the condensation device in the mobile biomass pyrolysis system.

公开(公告)号：US20240325964A1

公开(公告)日：2024-10-03

申请号：US18703716

申请日：2022-11-22

申请人： SOUTHEAST UNIVERSITY

发明人： Huiyan ZHANG ,  Bo PENG ,  Siyu WANG ,  Rui XIAO

IPC分类号： B01D53/12 ,  B01D53/30 ,  C10G9/16

CPC分类号： B01D53/10 ,  B01D53/12 ,  B01D53/30 ,  C10G9/16 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2258/0283 ,  B01D2259/4009

摘要： A pyrolysis vapor outlet anti-coking device of adsorbing medium self-recycling regeneration includes a particle flow adsorbing system and a medium burning regeneration recycling system in mutual communication. The particle flow adsorbing system is configured to enable an easy-to-coke component to be adsorbed on an outer surface of an adsorbing medium to form a coking layer, and convey the a coking adsorbing medium into the medium burning regeneration recycling system. The medium burning regeneration recycling system is configured to quickly burn the coking layer on the outer surface of the adsorbing medium to realize regeneration of the adsorbing medium and convey the regenerated adsorbing medium into the particle flow adsorbing system for recycling use.