PURIFICATION COMPOSITION, METHOD FOR PRODUCING PURIFICATION COMPOSITION AND METHOD FOR PURIFYING FLUE GAS BY PURIFICATION COMPOSITION

    公开(公告)号:US20220274058A1

    公开(公告)日:2022-09-01

    申请号:US17629108

    申请日:2020-06-15

    Inventor: Pekka HILTUNEN

    Abstract: A purification composition, comprising 50-60% by weight of ash and 40-50% by weight of liquid. A method for producing the purification composition, comprising: measuring an amount of ash, combining the ash and liquid, wherein an amount of the liquid is based on the amount of the ash, adjusting a temperature of the combination of the ash and the liquid by adjusting a temperature of the liquid and mixing the ash and the liquid. A method for purifying a flue gas by the purification composition, comprising: combining the purification composition and vapour to form a chute, adding the chute to the flue gas, adding the purification composition to the flue gas and over-pressuring the flue gas and adding more of the purification composition to the flue gas and under-pressuring the flue gas.

    Mineral carbonation
    10.
    发明授权

    公开(公告)号:US11273408B2

    公开(公告)日:2022-03-15

    申请号:US17053109

    申请日:2019-05-08

    Abstract: An integrated process for carbon dioxide capture, sequestration and utilization, includes a) providing an aqueous slurry with a particulate solid including an activated magnesium silicate mineral; b) contacting a CO2-containing gas stream with the aqueous slurry to provide a slurry comprising a magnesium ion enriched carbonated aqueous liquid and a magnesium depleted solid residue; c) subjecting at least part of the magnesium depleted solid residue to a particle size classification process that separates the magnesium depleted solid residue into a fine particle size fraction and a coarse particle size fraction; d) subjecting the coarse particle size fraction to a particle size reduction process; e) providing an aqueous slurry comprising particle size reduced fraction from step d) and repeating step b), wherein this step e) does not include using fine particle size fraction from step c); and f) precipitating magnesium carbonate from magnesium ions dissolved in b) and e).

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