The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2012
Filed:
Mar. 11, 2009
Fuyuki Yagi, Yokohama, JP;
Kenichi Kawazuishi, Yokohama, JP;
Fuyuki Yagi, Yokohama, JP;
Kenichi Kawazuishi, Yokohama, JP;
Japan Oil, Gas and Metals National Corporation, Kawasaki-shi, JP;
Inpex Corporation, Tokyo, JP;
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Japan Petroleum Exploration Co., Ltd., Tokyo, JP;
Cosmo Oil Co., Ltd., Tokyo, JP;
Nippon Steel Engineering Co., Ltd., Tokyo, JP;
Chiyoda Corporation, Yokohama-shi, JP;
Abstract
In a so-called GTL process of producing synthesis gas from natural gas, producing Fischer-Tropsch oil by way of Fischer-Tropsch synthesis of the obtained synthesis gas and producing liquid hydrocarbons containing fuel oil by upgrading, the synthesis gas produced from the synthesis gas production step is partly branched off prior to getting to the Fischer-Tropsch oil production step and the synthesis gas entering the branch line is subjected to a water gas shift reaction to raise the hydrogen concentration thereof. Subsequently, high-purity hydrogen is isolated from the synthesis gas and the residual gas left after the isolation is circulated to the synthesis gas production step and used as raw material for synthesis gas production. As a result, a significant improvement can be achieved in terms of raw material consumption per product of the entire process.