CAPTURE OF CARBON DIOXIDE
    1.
    发明申请
    CAPTURE OF CARBON DIOXIDE 审中-公开
    二氧化碳捕获

    公开(公告)号:US20130287673A1

    公开(公告)日:2013-10-31

    申请号:US13847381

    申请日:2013-03-19

    IPC分类号: C01B31/20

    CPC分类号: C01C1/244 C01F5/24 C01F11/18

    摘要: A method for capturing carbon dioxide comprising the steps of extracting mineral ions from a mineral source material to a mineral solution by reaction with a first ammonium salt; reacting the mineral solution with a CO2 source to precipitate a carbonate of the mineral and to produce a second ammonium salt; and recovering the first ammonium salt from the second ammonium salt.

    摘要翻译: 一种捕获二氧化碳的方法,包括以下步骤:通过与第一种铵盐反应从矿物原料中提取矿物离子至矿物溶液; 使矿物溶液与CO 2源反应以沉淀矿物的碳酸盐并产生第二铵盐; 并从第二铵盐中回收第一种铵盐。

    Method for production of sodium bicarbonate, sodium carbonate and
ammonium sulfate from sodium sulfate
    7.
    发明授权
    Method for production of sodium bicarbonate, sodium carbonate and ammonium sulfate from sodium sulfate 失效
    从硫酸钠生产碳酸氢钠,碳酸钠和硫酸铵的方法

    公开(公告)号:US5980848A

    公开(公告)日:1999-11-09

    申请号:US832798

    申请日:1997-04-04

    摘要: There is disclosed a process for recovering sodium bicarbonate and forming ammonium sulfate from a source containing sodium sulfate. The method involves contacting the sodium sulfate in solution with carbon dioxide and a compound containing ammonia. Sodium bicarbonate is precipitated in high purity form from the solution. It is important to maintain the temperature of the source solution at or above 32.degree. C. This provision eliminates contamination of hydrates or ammonium bicarbonate components. The filtrate of the sodium bicarbonate reaction can be further processed to yield an ammonium sulfate product in the concentrated liquid or precipitated form in high purity. The basic process can be expanded to be combined with a conventional Claus process for sulfur recovery as a Tail Gas Unit, or can be further employed in a wet and dry scrubbing process for FGD schemes.

    摘要翻译: 公开了从含有硫酸钠的源中回收碳酸氢钠并形成硫酸铵的方法。 该方法包括使溶液中的硫酸钠与二氧化碳和含氨的化合物接触。 碳酸氢钠从溶液中以高纯度形式沉淀。 将源溶液的温度保持在32℃或以上是很重要的。该条款消除了水合物或碳酸氢铵组分的污染。 可以进一步处理碳酸氢钠反应的滤液,得到浓缩液体中的硫酸铵产物或高纯度的沉淀形式。 基本方法可以扩展为与作为尾气单元的硫回收的常规Claus方法组合,或者可以进一步用于FGD方案的湿式和干式洗涤方法。