Relatively inexpensive process proposed for impregnating coal with calcium carbonate to increase rates of gasification and combustion of coal and to reduce emission of sulfur by trapping sulfur in calcium sulfide. Process involves aqueous-phase reactions between carbon dioxide (contained within pore network of coal) and calcium acetate. Coal impregnated with CO2 by exposing it to CO2 at high pressure.
Impregnating Coal With Calcium Carbonate
NASA Tech Briefs ; 15 , 12
1991-12-01
Sonstige
Keine Angabe
Englisch
Method of impregnating railway ties with preservations
Engineering Index Backfile | 1934
|Feeding and discharging device and method for impregnating tank
Europäisches Patentamt | 2023
|