METHOD FOR FIXING CARBON DIOXIDE
    31.
    发明公开

    公开(公告)号:EP4049973A1

    公开(公告)日:2022-08-31

    申请号:EP20891693.2

    申请日:2020-11-26

    发明人: INUI, Masayuki

    IPC分类号: C01F11/18 B01D53/14

    摘要: A carbon dioxide fixation method includes a step of preparing a calcium-containing substance containing calcium, a step of preparing a calcium extraction substance for extracting calcium ions from the calcium-containing substance by a reaction with the calcium-containing substance to produce a calcium-containing intermediate, a step of producing a gel including the calcium-containing intermediate, by mixing the calcium-containing substance and the calcium extraction substance, a step of supplying a basic substance and carbon dioxide to the gel including the calcium-containing intermediate to precipitate calcium carbonate which is slightly soluble, and a step of removing the precipitated calcium carbonate.

    AIR POLLUTION CONTROL APPARATUS AND AIR POLLUTION CONTROL METHOD

    公开(公告)号:EP3530341A3

    公开(公告)日:2019-12-18

    申请号:EP19158899.5

    申请日:2009-10-30

    发明人: Iijima, Masaki

    IPC分类号: B01D53/62 F23J15/02 B01D53/34

    摘要: An air pollution control apparatus according to an embodiment of the present invention includes: a stack (15) that discharges flue gas discharged from a boiler outside; a blower (13) that is provided downstream of the stack (15) and draws in the flue gas; and a CO 2 recovering apparatus (22) that recovers CO 2 in the flue gas drawn in by the blower (13). The stack (15) includes a controlling unit that suppresses release of the flue gas outside from the stack (15) and suppresses inflow of atmosphere to the stack (15), and the controlling unit is a channel forming unit (23A) that forms a serpentine channel through which the flue gas and the atmosphere in the stack (15) flow.

    GAS PURIFICATION DEVICE AND GAS PURIFICATION METHOD

    公开(公告)号:EP3546053A1

    公开(公告)日:2019-10-02

    申请号:EP17874942.0

    申请日:2017-11-17

    IPC分类号: B01D53/14 C10K1/08 C10K1/34

    摘要: To provide a gas clean-up unit and a gas purification method that can effectively reduce the concentration of carbonyl sulfide in gas to be treated even when the concentration of carbonyl sulfide in the gas to be treated is high. A gas clean-up unit 1 includes a first COS converter 12 that performs a first conversion process of converting hydrogen cyanide contained in gas to be treated G 1 to ammonia, in presence of a first catalyst and at a first predetermined temperature; a second COS converter 14 that performs a second conversion process of converting carbonyl sulfide in gas to be treated G 3 after the first conversion process to hydrogen sulfide, in presence of a second catalyst and at a second predetermined temperature that is lower than the first predetermined temperature; a first cleaner 13 that performs a cleaning process of cleaning and removing ammonia by bringing gas to be treated G 2 into gas-liquid contact with cleaning liquid; and a desulfurizer 16 that absorbs and removes hydrogen sulfide in gas to be treated G 5 by bringing the gas to be treated G 5 after the cleaning process into gas-liquid contact with absorbent.