HIGH TEMPERATURE HYDRATOR
    3.
    发明申请

    公开(公告)号:US20210380475A1

    公开(公告)日:2021-12-09

    申请号:US17324806

    申请日:2021-05-19

    摘要: An apparatus includes a fluidized bed vessel with inlet ports arranged to receive at least one feed stream comprising calcium oxide, calcium carbonate, water, and a fluidizing gas into a fluidized bed vessel. The calcium oxide contacts the water to initiate a hydrating reaction to produce calcium hydroxide and heat. The fluidized bed vessel is configured to operate with a fluidization velocity that fluidizes and separates at least a portion of the calcium carbonate and at least a portion of the calcium oxide into a first fluidization regime, and at least a portion of the calcium hydroxide and at least another portion of the calcium oxide into a second fluidization regime. The apparatus further includes a heat transfer assembly configured to transfer heat of the hydrating reaction to the calcium carbonate, and a cyclone configured to separate a portion of the fluidization gas from a portion of at least one of the calcium hydroxide, calcium carbonate or calcium oxide.

    Recovering a caustic solution via calcium carbonate crystal aggregates

    公开(公告)号:US11014823B2

    公开(公告)日:2021-05-25

    申请号:US16704088

    申请日:2019-12-05

    IPC分类号: C01F11/18 B01D9/00 D21C11/00

    摘要: Techniques for growing crystalline calcium carbonate solids such that the crystalline calcium carbonate solids include a volume of 0.0005 mm3 to 5 mm3, include a slaker to react quicklime (CaO) and a low carbonate content fluid to yield a slurry of primarily slaked lime (Ca(OH)2); a fluidized-bed reactive crystallizer that encloses a solid bed mass and includes an input for a slurry of primarily slaked lime, an input for an alkaline solution and carbonate, and an output for crystalline calcium carbonate solids that include particles and an alkaline carbonate solution; a dewatering apparatus that includes an input coupled to the crystallizer and an output to discharge a plurality of separate streams that each include a portion of the crystalline calcium carbonate solids and alkaline carbonate solution; and a seed transfer apparatus to deliver seed material into the crystallizer to maintain a consistent mass of seed material.

    AIR-TO-SYNGAS SYSTEMS AND PROCESSES
    6.
    发明申请

    公开(公告)号:US20200299132A1

    公开(公告)日:2020-09-24

    申请号:US16772693

    申请日:2018-12-12

    IPC分类号: C01B3/44 B01J8/22 C01F11/06

    摘要: Techniques for converting carbonate material to carbon monoxide include transferring heat and at least one feed stream that includes a carbonate material and at least one of hydrogen, oxygen, water, or a hydrocarbon, into an integrated calcination and syngas production system that includes a syngas generating calciner (SGC) reactor; calcining the carbonate material to produce a carbon dioxide product and a solid oxide product; initiating a syngas production reaction; producing, from the syngas production reaction, at least one syngas product that includes at least one of a carbon monoxide product, a water product or a hydrogen product; and transferring at least one of the solid oxide product or the at least one syngas product out of the SGC reactor.

    HIGH TEMPERATURE HYDRATOR
    7.
    发明申请

    公开(公告)号:US20190144333A1

    公开(公告)日:2019-05-16

    申请号:US16243755

    申请日:2019-01-09

    摘要: An apparatus includes a fluidized bed vessel with inlet ports arranged to receive at least one feed stream comprising calcium oxide, calcium carbonate, water, and a fluidizing gas into a fluidized bed vessel. The calcium oxide contacts the water to initiate a hydrating reaction to produce calcium hydroxide and heat. The fluidized bed vessel is configured to operate with a fluidization velocity that fluidizes and separates at least a portion of the calcium carbonate and at least a portion of the calcium oxide into a first fluidization regime, and at least a portion of the calcium hydroxide and at least another portion of the calcium oxide into a second fluidization regime. The apparatus further includes a heat transfer assembly configured to transfer heat of the hydrating reaction to the calcium carbonate, and a cyclone configured to separate a portion of the fluidization gas from a portion of at least one of the calcium hydroxide, calcium carbonate or calcium oxide.

    Carbon dioxide capture method and facility

    公开(公告)号:US11504667B2

    公开(公告)日:2022-11-22

    申请号:US16384401

    申请日:2019-04-15

    摘要: A carbon dioxide capture facility is disclosed comprising packing formed as a slab, and at least one liquid source. The slab has opposed dominant faces, the opposed dominant faces being at least partially wind penetrable to allow wind to flow through the packing. The at least one liquid source is oriented to direct carbon dioxide absorbent liquid into the packing to flow through the slab. The slab is disposed in a wind flow that has a non-zero incident angle with one of the opposed dominant faces. A method of carbon dioxide capture is also disclosed. Carbon dioxide absorbing liquid is applied into packing in a series of pulses. A gas containing carbon dioxide is flowed through the packing to at least partially absorb the carbon dioxide from the gas into the carbon dioxide absorbing liquid.