发明名称 Processo para adsorção de dióxido de carbono de um fluxo de gás contendo dióxido de carbono e dito adsorvente.
摘要 Adsorption of carbon dioxide from gas streams at temperatures in the range of 300 to 500 DEG C is carried out with a solid adsorbent containing magnesium oxide, preferably promoted with an alkali metal carbonate or bicarbonate so that the atomic ratio of alkali metal to magnesium is in the range of 0.006 to 2.60. Preferred adsorbents are made from the precipitate formed on addition of alkali metal and carbonate ions to an aqueous solution of a magnesium salt. Atomic ratios of alkali metal to magnesium can be adjusted by washing the precipitate with water. Low surface area adsorbents can be made by dehydration and CO2 removal of magnesium hydroxycarbonate, with or without alkali metal promotion. The process is especially valuable in pressure swing adsorption operations.
申请公布号 BR0003340(B1) 申请公布日期 2014.09.23
申请号 BR20000003340 申请日期 2000.08.02
申请人 AIR PRODUCTS AND CHEMICALS, INC 发明人 STEVEN GERARD MAYORGA;THOMAS RICHARD GAFFNEY;JEFFREY RICHARD BRZOZOWSKI;SCOTT JEFREY WEIGEL
分类号 B01D53/02;B01J20/04;B01D53/04;B01D53/047;B01D53/62;B01J20/30;B01J20/34;C01F5/00 主分类号 B01D53/02
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