Bruce R Utz, Age 80Casselberry, FL

H69, Jun 3, 1986

Nov 6, 1985

6/795302

Herbert R. Appell - Pitcairn PA
Nand K. Narain - Bethel Park PA
Bruce R. Utz - Pittsburgh PA

The United States of America as represented by the United States
Department of Energy - Washington DC

C10G 100
C10B 4902
C10B 5304

208 8LE

Increased liquefaction yield is obtained by pretreating a slurry of solid carbonaceous material and a liquid hydrocarbonaceous solvent at a temperature above 200. degree. C. but below 350. degree. C. for a period of 10 minutes to four hours prior to exposure to liquefaction temperatures.

6146432, Nov 14, 2000

Jul 15, 1999

9/354051

Thomas L. Ochs - Albany OR
William D. Sands - Butler PA
Karl Schroeder - Pittsburgh PA
Cathy A. Summers - Albany OR
Bruce R. Utz - Pittsburgh PA

The United States of America as represented by the Department of Energy - Washington DC

C10L 500

44501

This invention is a process for the passivation or deactivation with resp to oxygen of a carbonaceous material by the exposure of the carbonaceous material to an oxygenated gas in which the oxygenated gas pressure is increased from a first pressure to a second pressure and then the pressure is changed to a third pressure. Preferably a cyclic process which comprises exposing the carbonaceous material to the gas at low pressure and increasing the pressure to a second higher pressure and then returning the pressure to a lower pressure is used. The cycle is repeated at least twice wherein the higher pressure may be increased after a selected number of cycles.

5096570, Mar 17, 1992

Jun 1, 1990

7/531722

Bruce R. Utz - Pittsburgh PA
Anthony V. Cugini - Pittsburgh PA

The United States of America as represented by the United States
Department of Energy - Washington DC

C10G 100

208423

A method for dispersing finely divided catalyst precursors onto the surface of coal or other particulate material includes the steps of forming a wet paste mixture of the particulate material and a liquid solution containing a dissolved transition metal salt, for instance a solution of ferric nitrate. The wet paste mixture is in a state of incipient wetness with all of this solution adsorbed onto the surfaces of the particulate material without the presence of free moisture. On adding a precipitating agent such as ammonia, a catalyst precursor such as hydrated iron oxide is deposited on the surfaces of the coal. The catalyst is activated by converting it to the sulfide form for the hydrogenation or direct liquefaction of the coal.

5168088, Dec 1, 1992

Aug 12, 1991

7/743968

Bruce R. Utz - Pittsburgh PA
Anthony V. Cugini - Pittsburgh PA

The United States of America as represented by the United States
Department of Energy - Washington DC

B01J 2374
B01J 2118
B01J 27043
B01J 2720
B01J 3702
B01J 3720

502185

A method for dispersing finely divided catalyst precursors onto the surface of coal or other particulate material includes the steps of forming a wet paste mixture of the particulate material and a liquid solution containing a dissolved transition metal salt, for instance a solution of ferric nitrate. The wet paste mixture is in a state of incipient wetness with all of this solution adsorbed onto the surfaces of the particulate material without the presence of free moisture. On adding a precipitating agent such as ammonia, a catalyst precursor such as hydrated iron oxide is deposited on the surfaces of the coal. The catalyst is activated by converting it to the sulfide form for the hydrogenation or direct liquefaction of the coal.