Yu U Liu

US Patent:

6585952, Jul 1, 2003

Filed:

May 25, 2000

Appl. No.:

09/578315

Inventors:

Thomas J. Pinnavaia - East Lansing MI
Wenzhong Zhang - Broken Arrow OK
Yu Liu - East Lansing MI

Assignee:

Board of Trustees operating Michigan State University - East Lansing MI

International Classification:

C01B 3326

US Classification:

423702, 423705, 4233281, 4233282

Abstract:

Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam) The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.

US Patent:

6702993, Mar 9, 2004

Filed:

Apr 23, 2002

Appl. No.:

10/128065

Inventors:

Thomas J. Pinnavaia - East Lansing MI
Wenzhong Zhang - Broken Arrow OK
Yu Liu - East Lansing MI

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C01B 3326

US Classification:

4233281, 4233282, 423702, 502182, 502263, 501 80, 501 81

Abstract:

Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam). The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.

US Patent:

6706169, Mar 16, 2004

Filed:

Apr 23, 2002

Appl. No.:

10/128093

Inventors:

Thomas J. Pinnavaia - East Lansing MI
Wenzhong Zhang - Broken Arrow OK
Yu Liu - East Lansing MI

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C10G 1105

US Classification:

20812001, 208122

Abstract:

Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam). The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.

US Patent:

6746659, Jun 8, 2004

Filed:

Feb 21, 2001

Appl. No.:

09/792017

Inventors:

Thomas J. Pinnavaia - East Lansing MI
Wenzhong Zhang - Broken Arrow OK
Yu Liu - East Lansing MI

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C01B 3700

US Classification:

423702, 423709, 4233281, 4233282, 501 80, 501 81

Abstract:

Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.

US Patent:

6770258, Aug 3, 2004

Filed:

Apr 23, 2002

Appl. No.:

10/128388

Inventors:

Thomas J. Pinnavaia - East Lansing MI
Wenzhong Zhang - Broken Arrow OK
Yu Liu - East Lansing MI

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C01B 3326

US Classification:

423709, 423702, 4233281, 4233282, 501 81

Abstract:

Mesoporous hexagonal, cubic or wormhole aluminosilicates derived from zeolite seeds using an ionic structure directing agent are described. The aluminum in the structures is stable so that the framework of the structures does not collapse when heated in the presence of water or water vapor (steam). The steam stable aluminosilicates can be used as acid catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other cracking of organic compounds.

US Patent:

6843977, Jan 18, 2005

Filed:

Dec 19, 2001

Appl. No.:

10/025647

Inventors:

Thomas J. Pinnavaia - East Lansing MI, US
Wenzhong Zhang - Broken Arrow OK, US
Yu Liu - East Lansing MI, US

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C01B 3326

US Classification:

423702, 423709, 4233282, 501 80, 501 81

Abstract:

Porous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds or zeolite fragments using an organic porogen directing agent are described. The porous aluminosilicates optionally also can contain zeolite crystals depending upon the aging of the protozeolitic seeds. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.

US Patent:

6869906, Mar 22, 2005

Filed:

Oct 2, 2003

Appl. No.:

10/677798

Inventors:

Thomas J. Pinnavaia - East Lansing MI, US
Wenzhong Zhang - Broken Arrow OK, US
Yu Liu - East Lansing MI, US

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C01B033/26
B01J029/03

US Classification:

502182, 502263, 423702, 4233282, 501 80, 501 81

Abstract:

Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.

US Patent:

7128892, Oct 31, 2006

Filed:

Oct 2, 2003

Appl. No.:

10/677663

Inventors:

Thomas J. Pinnavaia - East Lansing MI, US
Wenzhong Zhang - Broken Arrow OK, US
Yu Liu - East Lansing MI, US

Assignee:

Board of Trustees of Michigan State University - East Lansing MI

International Classification:

C01B 33/36
C01B 39/00
C01F 7/00

US Classification:

423700, 4233281, 4233282, 423702, 423709, 502102, 502103, 502104, 502232, 502237, 502240, 502300, 502407, 502414

Abstract:

Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.