| US 7,393,470 B2 | ||
| Process for producing synthesis gas for the fischer-tropsch synthesis and producing apparatus thereof | ||
| Masaru Ihara, Funabashi (Japan); Yoshifumi Suehiro, Horie Urayasu (Japan); Yasumasa Morita, Tokyo (Japan); Kiyoshi Inaba, Ichikawa (Japan); Toshio Shimizu, Satte (Japan); Osamu Iwamoto, Satte (Japan); Tomoyuki Mikuriya, Tokyo (Japan); Ryuichiro Kajiyama, Yokohama (Japan); Ken-ichiro Fujimoto, Tokyo (Japan); and Yasuhiro Onishi, Tokyo (Japan) | ||
| Assigned to Japan Oil, Gas and Metals National Corporation, Kanagawa-ken (Japan); Sekiyushigen Kamatsu Kabushiki Kaisha, Tokyo (Japan); Cosmo Oil Co. Ltd., Tokyo (Japan); Chiyoda Corporation, Kanagawa-ken (Japan); Nippon Steel Corporation, Tokyo (Japan); and Inpex Corporation, Tokyo (Japan) | ||
| Filed on Mar. 25, 2005, as Appl. No. 11/90,393. | ||
| Claims priority of application No. 2004-100941 (JP), filed on Mar. 30, 2004. | ||
| Prior Publication US 2005/0220703 A1, Oct. 06, 2005 | ||
| Int. Cl. C01B 3/26 (2006.01) | ||
| U.S. Cl. 252—373 | 6 Claims |
| 1. A process for producing synthesis gas for the Fischer-Tropsch synthesis comprising:
an adsorbing step of adsorbing impurities contained in natural gas by active carbon to remove the impurities therefrom;
a hydro-desulfurizing step of hydrogenating sulfur content in the natural gas in the presence of a hydrogenation catalyst
under a partial pressure of hydrogen of 100 to 200 kPa and desulfurizing the sulfur content by an adsorbing agent;
a hydrogen supplying step of supplying the natural gas after the hydro-desulfurizing step with hydrogen (H2) in an amount of 0.05 to 0.1 mol to 1 mol of carbon (C) of hydrocarbon in the natural gas;
a reaction step of reacting the natural gas, carbon dioxide, and steam in the presence of a catalyst for reforming to obtain
synthesis gas for the Fischer-Tropsch synthesis; and
a cooling step of cooling the synthesis gas for the Fischer-Tropsch synthesis at a cooling rate of 2000-4000° C./second.
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