Modified large pore zeolites for trapping alkenes

Details Modified large pore zeolites for trapping alkenes Modified large pore zeolites for trapping alkenes

B - Operations, Transporting

01

D

B01D 53/04 (2006.01) B01D 53/94 (2006.01) F01N 3/08 (2006.01) F01N 3/20 (2006.01) F01N 13/02 (2010.01) F02M 25/07 (2006.01) B01D 53/36 (1990.01) F01N 7/02 (2006.01)

Patent

CA 2128562

Abstract of the Disclosure A modified large pore zeolite molecular sieve structure is disclosed for adsorbing alkenes emitted during engine start-up, before the catalytic converter has attained its effective operating temperature. The zeolite molecular sieve is modified by inserting certain metal ions into the molecular sieve structure. In particular, a modified y-zeolite having a high adsorption capacity for propylene is disclosed.

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