George G Roberts

US Patent:

45348472, Aug 13, 1985

Filed:

Jan 16, 1984

Appl. No.:

6/571311

Inventors:

George W. Roberts - Emmaus PA
John C. Tao - Perkiomenville PA

Assignee:

International Coal Refining Company - Allentown PA

International Classification:

C10G 100
C10G 106

US Classification:

208 8LE

Abstract:

In this invention, a process is disclosed characterized by heating a slurry of coal in the presence of a process-derived recycle solvent and passing same to a dissolver zone, separating the resultant gases and liquid/solid products therefrom, vacuum distilling the liquid/solids products, separating the portions of the liquid/solids vacuum distillation effluent into a solid ash, unconverted coal particles and SRC material having a boiling point above 850. degree. F. and subjecting same to a critical solvent deashing step to provide an ash-free SRC product. The lighter liquid products from the vacuum distillation possess a boiling point below 850. degree. F. and are passed through a distillation tower, from which recycled solvent is recovered in addition to light distillate boiling below 400. degree. F. (overhead). The ash-free SRC product in accompanyment with at least a portion of the process derived solvent is passed in combination to a hydrotreating zone containing a hydrogenation catalyst and in the presence of hydrogen is hydroprocessed to produce a desulfurized and denitrogenized low-sulfur, low-ash boiler fuel and a process derived recycle solvent which is recycled to slurry the coal in the beginning of the process before heating.

US Patent:

48594342, Aug 22, 1989

Filed:

Jun 10, 1988

Appl. No.:

7/205145

Inventors:

George W. Roberts - Emmaus PA
Shivaji Sircar - Wescosville PA
Paul Stepanoff - Quakertown PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C01B 2104
C01B 2300

US Classification:

423219

Abstract:

The present invention is directed to a process for producing endothermic gases from methanol and inert gas streams containing minor amounts of oxygen, wherein the oxygen is reacted with stoichiometric excess quantities of methanol over a catalyst as ambient feed temperature conditions without a requirement for external heating of the reaction to produce an endothermic gas containing very low levels of oxygen and methanol and significant quantities of hydrogen, carbon monoxide, water and carbon dioxide.

US Patent:

48594350, Aug 22, 1989

Filed:

Jun 10, 1988

Appl. No.:

7/205408

Inventors:

George W. Roberts - Emmaus PA
Shivaji Sircar - Wescosville PA
Paul Stepanoff - Quakertown PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C01B 2104
C01B 2300

US Classification:

423219

Abstract:

The present invention is directed to a process for removing minor amounts of oxygen from inert gas streams to result in very low levels of oxygen contamination in such inert gas streams, wherein the oxygen is removed by the action of stoichiometric quantities of methanol, which react with the oxygen over a catalyst at ambient feed temperature conditions without a requirement for external heating of the reaction.

US Patent:

47661542, Aug 23, 1988

Filed:

Feb 6, 1987

Appl. No.:

7/011647

Inventors:

Leo W. Bonnell - Macungie PA
Alan T. Perka - Macungie PA
George W. Roberts - Emmaus PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C07C 2706

US Classification:

518700

Abstract:

The present invention is a process for the production of methanol from a syngas feed containing carbon monoxide, carbon dioxide and hydrogen. Basically, the process is the combination of two liquid phase methanol reactors into a staging process, such that each reactor is operated to favor a particular reaction mechanism. In the first reactor, the operation is controlled to favor the hydrogenation of carbon monoxide, and in the second reactor, the operation is controlled so as to favor the hydrogenation of carbon dioxide. This staging process results in substantial increases in methanol yield.

US Patent:

44216300, Dec 20, 1983

Filed:

Oct 5, 1981

Appl. No.:

6/308639

Inventors:

George W. Roberts - Emmaus PA
Edwin N. Givens - Bethlehem PA
Ronald W. Skinner - Allentown PA

Assignee:

International Coal Refining Company - Allentown PA

International Classification:

C10G 100

US Classification:

208 8LE

Abstract:

There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a pasting oil, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals, are separated from the condensed reactor effluent. In accordance with the improved process, the first dissolver is operated at a higher temperature than the second dissolver. This temperature sequence produces improved product selectivity and permits the incorporation of sufficient hydrogen in the solvent for adequate recycle operations.

US Patent:

46902155, Sep 1, 1987

Filed:

May 16, 1986

Appl. No.:

6/864179

Inventors:

George W. Roberts - Emmaus PA
James G. Hansel - Emmaus PA
Goutam H. Shahani - Allentown PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

E21B 43243

US Classification:

166261

Abstract:

Enhanced oil recovery from a crude oil reservoir is promoted following primary oil production, by subjecting the reservoir to water flooding, discontinuing the water flooding, preferably when the remaining oil is at an OIP level above 0. 10, and then subjecting the reservoir to fireflooding with gas having an O. sub. 2 content of at least 50%, preferably above 85%.

US Patent:

48015741, Jan 31, 1989

Filed:

Dec 2, 1987

Appl. No.:

7/127830

Inventors:

Dennis M. Brown - Allentown PA
Thomas H. Hsiung - Emmaus PA
Pradip Rao - Allentown PA
George W. Roberts - Emmaus PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

B01J 2104
B01J 2306
B01J 2372
C07C 2916

US Classification:

502342

Abstract:

The present invention relates to a method of activation of a CuO/ZnO/Al. sub. 2 O. sub. 3 catalyst slurried in a chemically inert liquid. Successful activation of the catalyst requires the use of a process in which the temperature of the system at any time is not allowed to exceed a certain critical value, which is a function of the specific hydrogen uptake of the catalyst at that same time. This process is especially critical for activating highly concentrated catalyst slurries, typically 25 to 50 wt %. Activation of slurries of CuO/ZnO/Al. sub. 2 O. sub. 3 catalyst is useful in carrying out the liquid phase methanol or the liquid phase shift reactions.