Jerome H Marten

US Patent:

49635131, Oct 16, 1990

Filed:

May 24, 1989

Appl. No.:

7/356752

Inventors:

Jerome H. Marten - Baton Rouge LA

Assignee:

Florida Institute of Phosphate Research - Lakeland FL

International Classification:

C01J 314
C01J 316
C01J 384
C01B 1750

US Classification:

48210

Abstract:

The present invention relates to the coproduction of a combustible gas stream usable as an energy source, a sulfur-dioxide-containing second gas stream usable as a source of oxidant in the gasification of coal, and a sulfur-dioxide-containing third gas stream usable as a feedstock for the production of sulfuric acid. The process includes heating coal in a coal gasification zone in the presence of an oxygen and sulfur dioxide-containing atmosphere under partial coal gasifying conditions to produce a carbonaceous char and a crude coal gas stream. Sulfur-containing compounds are removed from the coal gas stream and converted to elemental sulfur. The carbonaceous char is combined with gypsum to form a feed mixture. The non-gypsum portion of the feed mixture contains sufficient reducing potential to release substantially all of the sulfur in the gypsum as gaseous compounds of sulfur in a +4 or lower oxidation state. The feed mixture is heated under reducing conditions to produce a sulfur-dioxide-containing second gas stream recovered at an early statge of the reaction a sulfur-dioxide-containing third gas stream and a solid sintered product.

US Patent:

47449691, May 17, 1988

Filed:

Dec 10, 1986

Appl. No.:

6/939964

Inventors:

Jerome H. Marten - Lakeland FL
Timothy J. Kendron - Lakeland FL

Assignee:

Florida Institute of Phosphate Research - Bartow FL

International Classification:

C01B 1750

US Classification:

423541R

Abstract:

The present invention relates to the coproduction of a combustible feed gas stream useable as an energy source and a sulfur-containing second gas stream useable as a feedstock for the production of sulfuric acid. The process includes heating coal in the presence of an oxygen-lean atmosphere under partial coal gasifying conditions to produce a solid carbonaceous char and a crude coal-gas stream. Sulfur-containing compounds are removed from the coal gas stream and converted to solid sulfur-containing materials. The solid sulfur-containing materials are combined with the solid carbonaceous char and gypsum to form a feed mixture. The non-gypsum portion of the feed mixture contains sufficient reducing potential to release substantially all of the sulfur in the gypsum as gaseous compounds of sulfur in a +4 or lower oxidation state. The feed mixture is heated under reducing conditions to produce a sulfur-containing second gas stream and a solid sintered product.

US Patent:

49170244, Apr 17, 1990

Filed:

May 24, 1989

Appl. No.:

7/356754

Inventors:

Jerome H. Marten - Baton Rouge LA
G. Michael Lloyd - Lakeland FL

Assignee:

Florida Institute of Phosphate Research - Lakeland FL

International Classification:

E23B 700

US Classification:

110233

Abstract:

A coal fired power plant includes a coal gasification zone where coal is gasified in the presence of an oxidant-lean atmosphere under partial coal gasifying conditions to produce a carbonaceous char and a crude gas stream, an acid separating zone where sulfur-containing compounds are separated from the crude gas stream to produce a combustible gas stream, and a converting zone where the sulfur-containing compounds are converted to elemental sulfur. The combustible gas stream and the carbonaceous char are fed into a boiler which drives a generator to produce electricity; portions of the carbonaceous char product and the combustible gas stream are diverted into a gypsum desulfurization zone. SO. sub. 2 -containing flue gas from the boiler is fed into a flue gas desulfurization zone. There, the SO. sub.

US Patent:

49466585, Aug 7, 1990

Filed:

May 11, 1989

Appl. No.:

7/351269

Inventors:

Jerome H. Marten - Lakeland FL
George M. Lloyd - Lakeland FL

Assignee:

Florida Institute of Phosphate Research - Bartow FL

International Classification:

C01F 1146

US Classification:

423168

Abstract:

A pelletized mixture of gypsum, carbonaceous material and pyrite is charged to a travelling grate where the charge is heated under suitable conditions to produce a solid sintered material which has a broad spectrum of applications due to its chemical and physical properties and a gaseous effluent containing sulfur dioxide, sulfur or mixtures thereof.

US Patent:

48658200, Sep 12, 1989

Filed:

Aug 14, 1987

Appl. No.:

7/085159

Inventors:

Michael Dunster - Gerrards Cross, GB2
Joseph D. Korchnak - Lakeland FL
Jerome H. Marten - Lakeland FL

Assignee:

Davy McKee Corporation - Houston TX

International Classification:

B01J 802

US Classification:

422220

Abstract:

A gas mixer and distributor for a reactor has first and second inlet chambers with the second inlet chamber being interposed between the first inlet chamber and an entrance to a reaction chamber. Walls form tubular or slit-like passageways extending from the first chamber to the entrance of the reaction chamber through the second chamber. Upper portions of the passageways have uniform cross-sections selected to produce gas velocities above the flashback velocity, as well as producing turbulence to completely mix gas passing from the second chamber through orifices in the walls of the passageways. Lower sections of the passageways gradually increase in cross-section to reduce velocity and minimize vortexing and recirculation at the entrance to the reactor chamber.