US 7,538,068 B2
	Carbon dioxide gas absorbent and method of manufacturing the same
Masahiro Kato, Naka-gun (Japan); Toshihiro Imada, Yokohama (Japan); and Kenji Essaki, Kawasaki (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan)
Filed on Mar. 16, 2006, as Appl. No. 11/376,062.
Claims priority of application No. 2005-080476 (JP), filed on Mar. 18, 2005.
Prior Publication US 2006/0211570 A1, Sep. 21, 2006
Int. Cl. B01J 20/04 (2006.01); B01J 20/10 (2006.01); C01B 33/32 (2006.01); C01B 37/02 (2006.01); C01D 15/00 (2006.01)

U.S. Cl. 502—407  [423/179.5; 423/325; 423/326; 423/332; 423/333; 423/334; 423/592.1; 423/593.1; 423/594.15; 423/641; 502/344; 502/411; 96/108; 501/11; 501/39; 501/53; 501/80; 501/154]

17 Claims

1. A carbon dioxide gas absorbent comprising a porous body containing a lithium complex oxide, wherein the porous body includes pores having a pore diameter distribution such that main pores which consist of first pores with a diameter of 10 to 100 μm and second pores with a diameter larger than 100 μm and 500 μm or smaller occupy 80 to 100%, third pores with a diameter smaller than 10 μm occupy 0 to 10% and fourth pores with a diameter larger than 500 μm occupy 0 to 10%, the main pores having a pore diameter distribution such that the first pores occupy 15 to 85% and second pores occupy 15 to 85%.