公开(公告)号：US12018213B2

公开(公告)日：2024-06-25

申请号：US17773796

申请日：2020-11-03

Applicant: Recycling Technologies Ltd

Inventor： Marvine Besong ,  Colin Kedge

IPC: C10B53/07 ,  B01J4/00 ,  B01J6/00 ,  B65G33/22 ,  B65G33/24 ,  C10B3/02 ,  C10B7/10 ,  C10B49/22 ,  C10G1/10 ,  F23G5/30

CPC classification number: C10B7/10 ,  B01J4/007 ,  B01J4/008 ,  B01J6/008 ,  B65G33/22 ,  B65G33/24 ,  C10B3/02 ,  C10B49/22 ,  C10B53/07 ,  C10G1/10 ,  F23G5/30 ,  B01J2204/002 ,  B01J2204/007 ,  C10G2300/1003 ,  F23G2201/00 ,  F23G2205/121 ,  F23G2207/20 ,  F23G2209/28

Abstract: A feed system for a reactor, a reactor assembly comprising such a feed system, and a method of supplying a feed material to a reactor with a feed system are provided. The reactor may be a pyrolysis reactor, such as a fluidised bed pyrolysis reactor. A method of pyrolysing a feed material is also provided. The feed system may comprise a feed conduit extending from an inlet to an outlet, and may have a first section including the inlet and a second section including the outlet. The first section may accommodate an auger. The second section may comprise at least one plug forming zone in which feed material is compressed into a substantially gas-tight plug during operation. There may be a temperature regulator for controlling the temperature in the second section. The temperature regulator may comprise a cooling jacket.

公开(公告)号：US11774088B2

公开(公告)日：2023-10-03

申请号：US16604912

申请日：2018-04-18

Applicant: Improbed AB

Inventor： Bengt-Ake Andersson

IPC: F22B31/00 ,  F23C10/26 ,  B03C1/12 ,  B03C1/30 ,  F23C10/01 ,  F23C10/02 ,  F23G5/30

CPC classification number: F22B31/0015 ,  B03C1/12 ,  B03C1/30 ,  F22B31/0092 ,  F23C10/01 ,  F23C10/02 ,  F23C10/26 ,  F23G5/30 ,  B03C2201/18 ,  F23C2900/10001 ,  F23J2700/001 ,  F23J2900/01001 ,  F23J2900/15023

Abstract: The invention relates to a method for operating a fluidized bed boiler (6), comprising the steps of: a) providing fresh ilmenite particles having a shape factor of 0.8 or lower as bed material to the fluidized bed boiler (6); b) carrying out a fluidized bed combustion process; c) removing at least one ash stream comprising ilmenite particles from the fluidized bed boiler; d) separating ilmenite particles from the at least one ash stream, wherein the separation includes a step of using a magnetic separator (12) comprising a field strength of 2,000 Gauss or more; e) recirculating separated ilmenite particles into the bed of the fluidized bed boiler; wherein the average residence time of ilmenite particles in the fluidized bed is 100 h or more.

公开(公告)号：US20230012258A1

公开(公告)日：2023-01-12

申请号：US17801229

申请日：2021-02-19

Applicant: Advanced Biofuel Solutions Ltd.

Inventor： Kevin Griggs ,  Richard Taylor

IPC: C10J3/72 ,  B09B3/40 ,  C10J3/48 ,  C10K3/00 ,  F23G5/027 ,  F23G5/08 ,  F23G5/16 ,  F23G5/30

Abstract: The invention relates to an apparatus for producing syngas, typically from municipal waste. In particular, a gasifier is used in combination with a plasma furnace. The system is configured so that non-airborne char generated in the gasifier is removed from the system prior to delivery to the plasma furnace. This enhances the energy efficiency of the system whilst still yielding excellent yields of syngas.

公开(公告)号：US20220154930A1

公开(公告)日：2022-05-19

申请号：US17589131

申请日：2022-01-31

Applicant: ThermoChem Recovery International, Inc.

Inventor： Ravi Chandran ,  Daniel A. Burciaga ,  Daniel Michael Leo ,  Shawn Robert Freitas ,  Dave G. Newport ,  Justin Kevin Miller ,  Kaitlin Emily Harrington ,  Brian Christopher Attwood

IPC: F23G5/30 ,  B01J8/04 ,  B01J19/00 ,  B01J19/24 ,  B09B3/00 ,  C01B3/02 ,  C10J3/48 ,  C10J3/72 ,  C10J3/84 ,  F23G5/00

Abstract: A multi-stage product gas generation system converts a carbonaceous material, such as municipal solid waste, into a product gas which may subsequently be converted into a liquid fuel or other material. One or more reactors containing bed material may be used to conduct reactions to effect the conversions. Unreacted inert feedstock contaminants present in the carbonaceous material may be separated from bed material using a portion of the product gas. A heat transfer medium collecting heat from a reaction in one stage may be applied as a reactant input in another, earlier stage.

公开(公告)号：US20220106528A1

公开(公告)日：2022-04-07

申请号：US17538854

申请日：2021-11-30

Applicant: The Texas A&M University System

Inventor： Sergio C. Capareda ,  Calvin B. Parnell, JR. ,  David B. Carney

IPC: C10B53/00 ,  C10J3/48 ,  C10K1/02 ,  B04C5/26 ,  F23C10/20 ,  F23C10/10 ,  C10J3/84 ,  C10J3/50 ,  F23G5/027 ,  B01J8/44 ,  F23G5/30 ,  F23G7/10 ,  C10B53/02 ,  C10B49/22 ,  C10J3/46 ,  C10J3/54 ,  F16L41/02 ,  G01F1/76

Abstract: A pyrolysis and gasification system produce a synthesis gas and bio-char from a biomass feedstock. The system includes a feed hopper that has a flow measurement device. The system also includes a reactor that is operable in a gasification mode or a pyrolysis mode. The reactor is configured to receive the biomass feedstock from the feed hopper. The reactor is operable to provide heat to the biomass feedstock from the feed hopper to produce the synthesis gas and bio-char. The system also includes a cyclone assembly. The produced synthesis gas including the bio-char is fed to the cyclone assembly. The cyclone assembly removes a portion of the bio-char from the synthesis gas.

公开(公告)号：US11262066B2

公开(公告)日：2022-03-01

申请号：US16321198

申请日：2017-07-26

Applicant: FLORADRY GMBH

Inventor： Swantje M. Schlederer ,  Thomas Steer ,  Hans Werner

IPC: F23G5/00 ,  F23L15/04 ,  F23G5/04 ,  F23G5/30 ,  F23G5/40 ,  F23G5/46 ,  F23G7/00 ,  F23G7/10

Abstract: The invention relates to a staggered firing for combustion of wet charge materials, consisting of the following steps: pre-combustion designed as a fluidized bed firing, heat transition in a heat exchanger, dust precipitation, and post-combustion. The staggered firing is characterized in that during the heat transition in the heat exchanger, exhaust gases from the pre-combustion are cooled and combustion air for pre-combustion is heated and then supplied to the pre-combustion.

公开(公告)号：US11236904B2

公开(公告)日：2022-02-01

申请号：US16823847

申请日：2020-03-19

Applicant: ITOCHU CERATECH CORPORATION

Inventor： Hiroshi Makino ,  Jun Sakamoto ,  Takayuki Kameda ,  Reiku Aoyama ,  Shunichi Sato ,  Yoji Okumura

IPC: F23C10/18 ,  C21D1/53 ,  F23C10/01 ,  F23G5/30

Abstract: Provided are: a useful bed medium for a fluidized bed with good fluidity, the bed medium being usable in a fluidized bed furnace using biomass material and coal material as fuel; and a useful bed medium for a fluidized bed with good durability, the bed medium not easily forming an agglomerate of its particles, and being resistant to collapsing. The bed medium for a fluidized bed in a fluidized bed furnace for combusting or gasifying the fuel is formed of artificially-produced spherical refractory particles containing not less than 40% by weight of Al2O3 and not more than 60% by weight of SiO2 and having an apparent porosity of not more than 5%, and a ratio by weight of agglomerated particles in the bed medium is not more than 20% after three heat treatment tests on the bed medium at 900° C. for 2 hours under coexistence with the fuel.

公开(公告)号：US11047568B2

公开(公告)日：2021-06-29

申请号：US15735437

申请日：2016-06-07

Applicant: Improbed AB

Inventor： Bengt-Ake Andersson ,  Fredrik Lind ,  Henrik Thunman

IPC: F23C10/10 ,  F23G5/30 ,  F23C10/18 ,  F23N3/00 ,  F23C10/20 ,  F23N1/00

Abstract: The invention relates to a method for operating a fluidized bed boiler, comprising: a) setting the ratio of secondary oxygen containing gas to primary oxygen containing fluidizing gas to a value ranging from 0.0 to 0.8; b) carrying out the combustion of fuel with a fluidized bed comprising ilmenite particle; and to a fluidized bed boiler.

公开(公告)号：US10458650B2

公开(公告)日：2019-10-29

申请号：US13865393

申请日：2013-04-18

Applicant: Degremont

Inventor： Pierre-Emmanuel Pardo ,  Ludovic Morice

IPC: F23J7/00 ,  F23G5/30 ,  F23G7/00 ,  F23J3/00

Abstract: A process for nitrification, in the heterogeneous phase, of the flue gases produced by a combustion furnace (1), in particular a furnace for incinerating waste or sludge from a municipal water or industrial water purification plant, according to which the fuel is introduced into a fluidized bed (B) or onto a grate, and combustion air (2) is injected into the furnace; a reducing agent (6) is injected into the fuel and/or into the combustion air, upstream of the combustion chamber (H), and is mixed homogenously with the fuel and/or the combustion air, in order to carry out a reducing treatment promoted by the bed (3) of ash or of solids present in the furnace.

公开(公告)号：US20190322942A1

公开(公告)日：2019-10-24

申请号：US16502941

申请日：2019-07-03

Applicant: The Texas A&M University System

Inventor： Sergio C. Capareda ,  Calvin B. Parnell, JR. ,  David B. Carney

IPC: C10B53/00 ,  G01F1/76 ,  C10J3/48 ,  B01J8/44 ,  C10J3/50 ,  C10J3/84 ,  C10K1/02 ,  B04C5/26 ,  F23C10/20 ,  F16L41/02 ,  F23G7/10 ,  F23G5/30 ,  F23G5/027 ,  F23C10/10 ,  C10J3/54

Abstract: A pyrolysis and gasification system produce a synthesis gas and bio-char from a biomass feedstock. The system includes a feed hopper that has a flow measurement device. The system also includes a reactor that is operable in a gasification mode or a pyrolysis mode. The reactor is configured to receive the biomass feedstock from the feed hopper. The reactor is operable to provide heat to the biomass feedstock from the feed hopper to produce the synthesis gas and bio-char. The system also includes a cyclone assembly. The produced synthesis gas including the bio-char is fed to the cyclone assembly. The cyclone assembly removes a portion of the bio-char from the synthesis gas.