| US 7,491,250 B2 | ||
| Pressure swing reforming | ||
| Frank Hershkowitz, Liberty Corner, N.J. (US); and Harry W. Deckman, Clinton, N.J. (US) | ||
| Assigned to ExxonMobil Research and Engineering Company, Annandale, N.J. (US) | ||
| Filed on Jun. 10, 2003, as Appl. No. 10/458,399. | ||
| Claims priority of provisional application 60/391360, filed on Jun. 25, 2002. | ||
| Prior Publication US 2003/0235529 A1, Dec. 25, 2003 | ||
| Int. Cl. C01B 3/32 (2006.01); C01B 3/36 (2006.01); C10J 3/46 (2006.01); C10J 3/54 (2006.01); F28D 21/00 (2006.01) | ||
| U.S. Cl. 48—198.7 [48/197 R; 422/206] | 15 Claims |
| 1. A cyclic reforming and re-heating process comprising:
(a) reforming a hydrocarbon by introducing at least a portion of said hydrocarbon along with steam and optionally CO2, through a first end of a first zone having a first volume containing bed packing materials and catalyst to produce a synthesis
gas product;
(b) passing at least a portion of the product of step (a) to a second zone having a second volume containing bed packing materials,
and transferring sensible heat from the product to the packing materials;
(c) removing substantially all of the product from said second zone;
(d) introducing an oxygen-containing gas into a first end of said second zone; and
(e) contacting said oxygen-containing gas with a fuel and combusting said gas and fuel within said zones, thereby re-heating
said first zone to reforming temperatures and creating a fluegas which exits through the first end of said first zone, where
each of steps (a) and (b) are done at a space velocity C1GHSV of at least 500 hr−1 as calculated using a combined volume of the first and second zones.
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