| US 7,510,648 B2 | ||
| Method for desulfurization of liquid hydrocarbons and process for production of hydrogen for fuel cells | ||
| Tadashi Kisen, Chiba (Japan); Hiroto Matsumoto, Chiba (Japan); Hisashi Katsuno, Chiba (Japan); and Kazuhito Saito, Tokyo (Japan) | ||
| Assigned to Idemitsu Kosan Co., Ltd., Tokyo (Japan) | ||
| Appl. No. 10/519,681 PCT Filed Jul. 22, 2003, PCT No. PCT/JP03/09247 § 371(c)(1), (2), (4) Date Jan. 07, 2005, PCT Pub. No. WO2004/009735, PCT Pub. Date Jan. 29, 2004. |
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| Claims priority of application No. 2002-212384 (JP), filed on Jul. 22, 2002. | ||
| Prior Publication US 2006/0131215 A1, Jun. 22, 2006 | ||
| Int. Cl. C10G 29/00 (2006.01); C10G 29/04 (2006.01); C01B 3/24 (2006.01); C01B 3/26 (2006.01) | ||
| U.S. Cl. 208—208R [208/213; 208/216 R; 208/217; 208/243; 208/244; 423/650; 423/651; 423/652; 423/653; 423/654] | 5 Claims |
| 1. A method for producing a desulfurized liquid hydrocarbon, comprising:
identifying distillation characteristics of a liquid hydrocarbon;
selecting desulfurization conditions based on the distillation characteristics of the liquid hydrocarbon; and
contacting the liquid hydrocarbon with a metallic desulfurizing agent under the desulfurization conditions to obtain the desulfurized
liquid hydrocarbon;
wherein:
selecting the desulfurization conditions comprises selecting conditions satisfying the following formula (1):
1.06×Pope0.44<Tope/T50<1.78×Pope0.22 (1)
wherein
Tope represents operation temperature in ° C.;
Pope represents operation pressure in MPa; and
T50 represents a temperature per 50 percent recovered as determined by the “test method for distillation at atmospheric pressure”
provided in the standard JIS K2254 “Petroleum products—Determination of distillation characteristics” as revised in 1998.
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