公开(公告)号：US20230134219A1

公开(公告)日：2023-05-04

申请号：US17642672

申请日：2020-12-22

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Shuping ZHANG ,  Qing DONG ,  Rui XIAO ,  Xiaodi LI

IPC: C10B53/02 ,  C10B57/10 ,  C10B19/00 ,  C10B27/00 ,  C10B7/10 ,  C10G1/02

Abstract: A biomass pyrolysis device and a biomass pyrolysis method is for optimal matching of thermal energy and microwave energy, wherein the device comprises a power generation system, a drying device and a microwave pyrolysis device; wherein the drying device is a cylinder nested with a flue gas layer and a material layer, a material inlet of the drying device is connected with a feeding device, and a volatile outlet is connected with a condensing unit; the microwave pyrolysis device is connected with a material outlet of the drying device, and a pyrolysis gas outlet of the microwave pyrolysis device is connected with the condensing unit; the condensing unit is connected with the power generation system, and waste gas generated by the power generation system is introduced into the flue gas layer of the drying device.

公开(公告)号：US20240325964A1

公开(公告)日：2024-10-03

申请号：US18703716

申请日：2022-11-22

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Bo PENG ,  Siyu WANG ,  Rui XIAO

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

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

Abstract: 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.

公开(公告)号：US20250084805A1

公开(公告)日：2025-03-13

申请号：US18957936

申请日：2024-11-25

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Yinhai SU ,  Bo PENG ,  Sheng CHU ,  Yujie TAO ,  Qi CAO ,  Rui XIAO

IPC: F02G5/04

Abstract: The provided is energy storage method and device for biomass cascade pyrolysis coupled with new energy power generation. The key point of the technical solution is that, with inexpensive, clean and safe biomass as energy storage medium, the redundant unstable electric energy is converted by a cascade pyrolysis energy storage system into an easy-to-store liquid and solid chemical energy in biomass pyrolytic products, and based on use requirements, can be further converted into clean fuels for power generation or exported renewable chemicals, so as to realize continuous stable output of the new energy power generation systems. Furthermore, the cascade pyrolysis energy storage system can, based on the principle of “energy level matching”, fully recover and utilize the electric energy, high-temperature heat energy and low-temperature heat energy generated in pyrolysis processes, thereby maximizing the energy utilization efficiency of the system.

公开(公告)号：US20230256356A1

公开(公告)日：2023-08-17

申请号：US18012098

申请日：2021-12-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Shuping ZHANG ,  Bo PENG ,  Rui XIAO

IPC: B01D5/00

CPC classification number: B01D5/0027 ,  B01D5/0036 ,  B01D5/0087 ,  B01D5/0057 ,  B01D2202/00

Abstract: 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：US20240101428A1

公开(公告)日：2024-03-28

申请号：US18013285

申请日：2022-04-27

Applicant: SOUTHEAST UNIVERSITY

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

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

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

Abstract: 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：US20230419073A1

公开(公告)日：2023-12-28

申请号：US18014075

申请日：2022-04-27

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Zhenting ZHA ,  Zefeng GE ,  Yuna MA

IPC: G06N3/006 ,  G06N3/084 ,  G06F18/214

CPC classification number: G06N3/006 ,  G06N3/084 ,  G06F18/214

Abstract: The present disclosure provides a method for predicting gasification characteristics of biomass char, including the following steps: step 10): acquiring training data of biomass char gasification; step 20): establishing a BP neural network model including an input layer, a hidden layer and an output layer, input parameters of the BP neural network model being char making temperature, char specific surface area and gasification time, and output parameters being char conversion rate; step 30): training the BP neural network model by adopting the training data, and optimizing the BP neural network model by adopting a particle swarm optimization algorithm to obtain a BP neural network model with high prediction precision; and step 40): predicting the char conversion rate by using the BP neural network model with high prediction precision. According to the method, high-fitness simulation can be performed on the gasification process of biomass char, and the char gasification characteristics can be accurately predicted.

公开(公告)号：US20250075130A1

公开(公告)日：2025-03-06

申请号：US18954559

申请日：2024-11-21

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Siyu WANG ,  Kai WU ,  Jiajun YU ,  Yihan WANG ,  Bingbing LUO

IPC: C10B33/00

Abstract: The provided is a novel heat-induction decoking device and method tailored for the thermal conversion of solid fuels. The efficient heat-induction decoking device for the thermal conversion of the solid fuels includes: a decoking tank body, which is configured to condense a macromolecular tar in a pyrolysis gas and discharge the condensed tar from a bottom to a tar tank for storage; an electromagnetic induction heating system, which is disposed on an outer wall surface of the decoking tank body to heat the outer wall surface of the decoking tank body; an ultrasonic vibration decoking system, which is disposed on the decoking tank body to enable the decoking tank body to generate vibration by ultrasonic wave so as to enhance tar fluidity. This innovative design not only reduces energy consumption and equipment wear but also extends system operational lifespan, thereby offering substantial improvements in economic and environmental sustainability.

公开(公告)号：US20230348804A1

公开(公告)日：2023-11-02

申请号：US18013279

申请日：2021-12-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Ziwei LI ,  Rui XIAO ,  Xiaowen LI

IPC: C10L1/02 ,  B01J8/02 ,  B01J4/00 ,  B01J19/00 ,  B01J19/26

CPC classification number: C10L1/02 ,  B01J8/025 ,  B01J8/0285 ,  B01J8/0278 ,  B01J4/002 ,  B01J4/008 ,  B01J19/0013 ,  B01J19/26 ,  C10L2290/141 ,  C10L2290/18 ,  C10L2290/54 ,  C10L2290/56 ,  C10L2290/60 ,  B01J2219/00006 ,  B01J2219/00033 ,  B01J2219/0004 ,  B01J2219/00058 ,  B01J2219/00164

Abstract: A device for online co-production of carbon-containing precursors and high-quality oxygen-containing fuels from biomass pyrolysis gas includes a spray polymerization reactor, where a biomass pyrolysis gas inlet and a polymerization agent inlet are provided on the spray polymerization reactor, an outlet of the spray polymerization reactor is connected to an inlet of a catalytic reactor, and an outlet of the catalytic reactor is connected to an inlet of a condenser; a spray pipe is arranged at a top in the spray polymerization reactor, and a detachable collector for collecting the carbon-containing precursors is mounted at a bottom of the spray polymerization reactor; and a catalyst is arranged in the catalytic reactor, such that micromolecular pyrolysis gas is catalytically converted into the high-quality oxygen-containing fuels.

公开(公告)号：US20230192490A1

公开(公告)日：2023-06-22

申请号：US18010383

申请日：2021-12-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan ZHANG ,  Yihan WANG ,  Xiaodi LI

IPC: C01B32/15 ,  B01J19/12 ,  C01B3/26

CPC classification number: C01B32/15 ,  B01J19/126 ,  C01B3/26 ,  B01J2219/1218 ,  C01P2004/16 ,  C01P2004/64

Abstract: The present disclosure relates to a system and a method for preparing carbon nanofiber and hydrogen through continuous microwave pyrolysis. The system includes four apparatus. The melting and feeding apparatus is to heat and melt feedstocks. The microwave pyrolysis apparatus is for catalytic pyrolysis and includes a feedstock inlet, a gas outlet and a carbon outlet. The gas purification and utilization apparatus is for hydrogen purification and residual gas separation, The power generation apparatus includes a generator and a small internal combustion engine utilizing residual gas as fuel, and the generated smoke is conveyed to the melting and feeding apparatus for feedstocks melting. According to the present disclosure, a poly-generation system for co-producing high-performance carbon materials and hydrogen through plastic wastes with greatly increased energy utilization rate is formed to solve the technical problems of low product yield and high energy consumption in traditional pyrolysis.