| US 7,572,429 B1 | ||
| Cyclic pre-reformer/desulphurization unit | ||
| Michael K. Neylon, Tacoma, Wash. (US); David C. LaMont, Bartlesville, Okla. (US); and Karen M. Fleckner, Tacoma, Wash. (US) | ||
| Assigned to Nu Element, Inc., Tacoma, Wash. (US) | ||
| Filed on Feb. 16, 2007, as Appl. No. 11/676,229. | ||
| Claims priority of provisional application 60/774479, filed on Feb. 17, 2006. | ||
| Int. Cl. C01B 3/22 (2006.01); C01B 17/50 (2006.01); C07C 4/00 (2006.01) | ||
| U.S. Cl. 423—539 [423/220; 423/230; 423/650; 423/651; 423/652; 252/373] | 34 Claims |
| 1. A staged process comprising
contacting, in a first stage, water and liquid fuel containing sulfur over a catalyst material to convert the fuel into methane,
hydrogen, carbon monoxide, carbon dioxide, and hydrogen sulfide, and upon which the hydrogen sulfide is captured by the catalyst
material; and
contacting, in a second stage, the catalyst material with a mixture of air and water to remove the hydrogen sulfide from the
catalyst material as sulfur dioxide and water.
|