US 7,524,472 B1
Mercury removal from coal emissions using montmorillonite clay
Raymond Kong, Los Angeles, Calif. (US)
Assigned to California Earth Minerals, Corp., Culver City, Calif. (US)
Filed on Nov. 15, 2006, as Appl. No. 11/600,700.
Int. Cl. B01D 53/64 (2006.01); B01J 20/12 (2006.01); C09K 3/00 (2006.01)
U.S. Cl. 423—210  [502/400; 252/181.1; 252/181.3; 252/181.6; 252/182.32; 252/182.35; 252/183.13; 252/183.14; 95/134] 19 Claims
OG exemplary drawing
 
1. A method of removing mercury from a gas stream comprising:
introducing the gas stream into a flue or duct; and
contacting the gas stream with a gettering composition comprising a montmorillonite clay and an activator comprising one or more organic cations.