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:
Jan. 15, 2013
Filed:
Mar. 09, 2009
Werner Siegfried Ernst, Secunda, ZA;
Werner Siegfried Ernst, Secunda, ZA;
Abstract
A process () to synthesise hydrocarbons includes gasifying () a carbonaceous feed material at a temperature sufficiently high to produce at least one hot synthesis gas stream () at a temperature of at least 900° C. and comprising at least CO and H. In a Fischer-Tropsch hydrocarbon synthesis stage (), synthesis gas is converted to hydrocarbons, providing a tail gas stream () containing methane. The tail gas stream () is subjected to steam reforming () thereby converting the methane to CO and Hproducing a reformed gas stream which is recycled to the Fischer-Tropsch hydrocarbon synthesis stage (). The steam reforming () takes place at an elevated temperature of at least 700° C. and heat for the steam reforming is provided by indirect heat exchange with the at least one hot synthesis gas stream ().