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    • 1. 发明申请
    • A FLUIDIZED BED REACTOR SYSTEM AND A METHOD OF OPERATING A FLUIDIZED BED REACTOR SYSTEM
    • WO2021213643A1
    • 2021-10-28
    • PCT/EP2020/061160
    • 2020-04-22
    • SUMITOMO SHI FW ENERGIA OY
    • PALONEN, Juha
    • F23B30/00F23G5/30F23B10/00F23C6/02F23C10/00
    • A reactor system (10, 10', 10'') and a method of controlling a reactor system comprising first and second fluidized bed reactors (12, 14), a flue gas channel (30) in gas flow connection with the first fluidized bed reactor (12) and a product gas channel (54) in gas flow connection with the second fluidized bed reactor (14), the method comprising the steps of feeding solid fuel and oxygen containing gas to the first fluidized bed reactor so as to form therein a fluidized bed of particles and combusting a first portion of the solid fuel in the fluidized bed of particles with the oxygen containing gas so as to generate hot bed particles and a first stream of hot flue gas, conveying the first stream of hot flue gas to the flue gas channel, transferring hot bed particles including a second portion of the solid fuel at a predetermined hot particles transfer rate from the first fluidized bed reactor to the second fluidized bed reactor, feeding fluidizing gas to the second fluidized bed reactor so as to form therein a second fluidized bed of particles, and transferring bed particles from the second fluidized bed reactor to the first fluidized bed reactor; wherein the method comprises first and second operation modes, in which first operation mode the fluidizing gas is oxygen containing gas and the method comprises the steps of combusting a portion of the second portion of the solid fuel in the second fluidized bed of particles so as to generate a second stream of hot flue gas, and conveying the second stream of hot flue gas to the flue gas channel, and in the second operation mode the fluidizing gas comprises steam, CO2 or non-oxygen containing inert gas and the method comprises the steps of pyrolyzing or gasifying a portion of the second portion of the solid fuel in the second fluidized bed of particles so as to generate product gas, and conveying the product gas to the product gas.
    • 9. 发明申请
    • A NOZZLE FOR A CIRCULATING FLUIDIZED BED (CFB) BOILER
    • 一种用于循环流化床(CFB)锅炉的喷嘴
    • WO2017175040A1
    • 2017-10-12
    • PCT/IB2016/053813
    • 2016-06-27
    • THERMAX LIMITED
    • RAMANATHAN, Subramaniam ChiramadamJHA, Radhe SGUPTA, Devkumar FulchandSONDE, Ramakrishna Ramanath
    • F23C10/00
    • F23C10/00F23C10/04F23C10/20
    • A nozzle for a circulating fluidized bed (CFB) boiler of the present disclosure relates to the field of mechanical engineering. The nozzle creates resistance to ingress of fine solid particles and maintains uniform air distribution therethrough. The nozzle has a body having a predetermined thickness and at least one passage configured along the thickness of the body such that, the passage extends from an inner surface of the body and terminates at an outer surface of the body. The passage facilitates the flow of a fluid from a lumen formed within the body to the outer surface of the body and vice versa. The passage has at least one bend. The bend restricts the backflow of fine solid particles through the nozzle to avoid the disturbance to the air flow pattern by the fine solid particles within the windbox.
    • 用于本公开的循环流化床(CFB)锅炉的喷嘴涉及机械工程领域。 喷嘴可以阻止细小固体颗粒的进入并保持均匀的空气分布。 该喷嘴具有一个具有预定厚度的主体和至少一个沿着主体的厚度构造的通道,使得该通道从主体的内表面延伸并终止于主体的外表面。 该通道有助于流体从形成在身体内的内腔流到身体的外表面,反之亦然。 该通道至少有一个弯曲。 弯头限制细小固体颗粒通过喷嘴的回流,以避免风箱内细小固体颗粒干扰气流模式。
    • 10. 发明申请
    • BED MANAGEMENT CYCLE FOR A FLUIDIZED BED BOILER AND CORRESPONDING ARRANGEMENT
    • 流化床锅炉的床管理周期和相应的布置
    • WO2017060890A2
    • 2017-04-13
    • PCT/IB2016/056690
    • 2016-11-07
    • IMPROBED AB
    • ANDERSSON, Bengt-AkeKNUTSSON, PavletaLIND, FredrikTHUNMAN, Henrik
    • F23C10/00F23C10/26F23C10/32
    • F23C10/00F23C10/26F23C10/32F23C2206/103
    • The invention relates to abed management cycle for a fluidized bed boiler, comprising the steps of: a) providing fresh ilmenite particles as bed material to the fluidized bed boiler; 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; e) recirculating separated ilmenite particles into the bed of the fluidized bed boiler. The invention also relates to a corresponding arrangement for carrying out fluidized bed combustion, comprising a fluidized bed boiler comprising ilmenite particles as bed material; and a system for removing ash from the fluidized bed boiler; wherein the arrangement further comprises a separator for separating ilmenite particles from the re- moved ash; and means for recirculating separated ilmenite particles into the bed of the fluidized bed boiler.
    • 本发明涉及流化床锅炉的减排管理循环,包括以下步骤:a)将新的钛铁矿颗粒作为床料提供给流化床锅炉; b)进行流化床燃烧过程; c)从流化床锅炉中除去至少一种包含钛铁矿颗粒的灰分流; d)从所述至少一个灰分流中分离钛铁矿颗粒; e)将分离的钛铁矿颗粒再循环到流化床锅炉的床中。 本发明还涉及一种用于进行流化床燃烧的相应装置,包括:流化床锅炉,其包含作为床料的钛铁矿颗粒; 以及用于从流化床锅炉除去灰分的系统; 其中所述装置还包括用于从所述灰分中分离钛铁矿颗粒的分离器; 以及用于将分离的钛铁矿颗粒再循环到流化床锅炉的床中的装置。