Title:
FCC法に使用されるNOx低減組成物
Document Type and Number:
Japanese Patent JP2006503698
Kind Code:
A
Abstract:
Processes for preparing a composition comprising (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, and (iii) an oxygen storage component are disclosed. Preferably, the process comprise forming a single slurry of components (i)-(iii), spray drying and calcining to obtain metal oxide particles comprising components (i)-(iii). Preferably, the slurry comprise a base peptized acidic metal oxide containing slurry wherein the component (ii) is provided in the slurry as a metal of the base. Compositions prepared are impregnated with a noble metal to provide compositions useful to reduce gas phase reduced nitrogen species and NOx in an effluent off gas of a fluid catalytic cracking regenerator.
Inventors:
Yarris
Rudsil, Jiyoung Allen
Suarez, Wilson
Rudsil, Jiyoung Allen
Suarez, Wilson
Application Number:
JP2004547025A
Publication Date:
February 02, 2006
Filing Date:
October 21, 2003
Export Citation:
Assignee:
W. R. Grace and Company-Connecticut
International Classes:
B01J23/58; B01D53/86; B01D53/94; B01J21/12; B01J23/10; B01J23/63; B01J37/00; B01J37/04; B01J37/08; B01J37/10; C10G11/05; C10G11/18; B01J35/10
Domestic Patent References:
| JPS55127490A | 1980-10-02 | |||
| JPS6190736A | 1986-05-08 | |||
| JPH08229394A | 1996-09-10 | |||
| JPH08299794A | 1996-11-19 | |||
| JP2005510356A | 2005-04-21 |
Foreign References:
| WO2000044493A1 | 2000-08-03 |
Attorney, Agent or Firm:
Heikichi Odashima