Hye Jin Cho, Age 45Fairfax, VA

6846403, Jan 25, 2005

Dec 28, 1998

09/221539

Wu-Cheng Cheng - Ellicott City MD, US
Scott Kevin Purnell - Ellicott City MD, US
Terry G. Roberie - Ellicott City MD, US
Hye Kyung Cho Timken - Woodbury NJ, US
Xinjin Zhao - Columbia MD, US

Mobil Oil Corporation - Fairfax VA
W.R. Grace & Co.-Conn. - Columbia MD

C10G 1100

208113, 208208 R, 208244, 208245, 208247, 208248, 208249, 2081202, 20812025, 20812035, 2081201

The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a rare earth component which enhances the cracking activity of the cracking catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 4 of the Periodic Table, preferably vanadium. The rare earth component preferably includes cerium which enhances the sulfur reduction activity of the catalyst. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.

7452839, Nov 18, 2008

Dec 16, 2004

11/013481

Wu-Cheng Cheng - Ellicott City MD, US
Terry G. Roberie - Ellicott City MD, US
Hye Kyung Cho Timken - Woodbury NJ, US
Scott Kevin Purnell - Ellicott City MD, US
Xinjin Zhao - Columbia MD, US

W. R. Grace & Co.-Conn. - Columbia MD

B01J 29/06

502 64, 502 60, 502 73, 502 65, 502 69

The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction catalyst composition comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve as well as a rare earth component which enhances the cracking activity of the cracking catalyst. The molecular sieve is normally a faujasite such as USY. The primary sulfur reduction component is normally a metal of Period 3 of the Periodic Table, preferably vanadium. The rare earth component preferably includes cerium which enhances the sulfur reduction activity of the catalyst. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.