DESULFURIZATION IN A REGENERATIVE CALCIUM CYCLE SYSTEM
    5.
    发明申请
    DESULFURIZATION IN A REGENERATIVE CALCIUM CYCLE SYSTEM 有权
    再生钙循环系统中的脱硫

    公开(公告)号:US20140102343A1

    公开(公告)日:2014-04-17

    申请号:US14055170

    申请日:2013-10-16

    Abstract: The present invention relates to a method and system for combustion of a fuel and treatment of the resulting flue gas. The method includes: combusting a fuel with air or oxygen to produce a hot flue gas stream containing at least carbon dioxide (CO2) and sulfur dioxide (SO2), bringing the flue gas stream into contact with solid calcium oxide (CaO) in a carbonation reactor operating at a temperature at which CO2 in the flue gas reacts with CaO to form solid calcium carbonate (CaCO3), heating CaCO3 formed in the carbonation reactor in a calcination reactor operating at a temperature at which CaCO3 is converted to CaO and CO2, whereby said heating is at least partially effected by indirect heat exchange with the hot flue gas stream from the combustion, and recirculating CaO formed in the calcination reactor back to the carbonation reactor, wherein the flue gas used for indirect heat exchange in the calcination reactor is subsequently subjected to dry desulfurization in a dry desulfurizer before it is brought into contact with CaO in the carbonation reactor.

    Abstract translation: 燃料燃烧方法和系统技术领域本发明涉及一种用于燃烧燃料的方法和系统以及对所得烟道气的处理。 该方法包括:用空气或氧气燃烧燃料以产生至少含有二氧化碳(CO 2)和二氧化硫(SO 2)的热烟道气流,使烟道气与碳酸化中的固体氧化钙(CaO)接触 反应器在烟道气中的CO 2与CaO反应形成固体碳酸钙(CaCO 3)的温度下操作,加热在碳酸化反应器中形成的碳酸钙,该煅烧反应器在CaCO 3转化为CaO和CO 2的温度下操作,由此 所述加热至少部分地通过与来自燃烧的热烟道气流的间接热交换以及将在煅烧反应器中形成的CaO再循环回到碳酸化反应器来进行,其中用于在煅烧反应器中间接热交换的烟道随后 在干式脱硫器中,在碳酸化反应器中与CaO接触之前,经过干法脱硫。

    DESULPHURIZATION AND COOLING OF PROCESS GAS
    7.
    发明申请
    DESULPHURIZATION AND COOLING OF PROCESS GAS 审中-公开
    工艺气体的脱硫和冷却

    公开(公告)号:US20140065046A1

    公开(公告)日:2014-03-06

    申请号:US14017951

    申请日:2013-09-04

    CPC classification number: B01D53/507 B01D53/343 B01D53/504 B01D2252/1035

    Abstract: The present invention relates to a method of cleaning a process gas containing sulphur dioxide the method including removing sulphur dioxide from the process gas by contacting the process gas with seawater to generate an at least partly cleaned process gas in a first gas cleaning device. In a second gas cleaning device, being arranged in direct fluid connection with the first gas cleaning device, the at least partly cleaned process gas having passed through the first gas cleaning device is cooled to condense water there from, thereby generating a process gas having a reduced content of water vapour. At least a part of the condensed water generated in the second gas cleaning device is passed to the first gas cleaning device. The present invention moreover relates to a gas cleaning system for cleaning of a process gas containing sulphur dioxide.

    Abstract translation: 本发明涉及清洗含二氧化硫的工艺气体的方法,该方法包括通过使工艺气体与海水接触以在第一气体清洁装置中产生至少部分清洁的工艺气体来从工艺气体中除去二氧化硫。 在与第一气体清洁装置直接流体连接的第二气体清洁装置中,经过第一气体清洁装置的至少部分清洁的处理气体被冷却以将水从那里冷凝,从而产生具有 减少水蒸气含量。 在第二气体净化装置中产生的冷凝水的至少一部分通过第一气体净化装置。 本发明还涉及一种用于清洗含二氧化硫的工艺气体的气体净化系统。

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