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:
Apr. 14, 2009
Filed:
Oct. 06, 2005
Jan Lodewijk Maria Dierickx, Amsterdam, NL;
Jan Lodewijk Maria Dierickx, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A process to make ethylene and/or propylene from methane comprises preparing a gaseous mixture of carbon monoxide and hydrogen from methane, performing a Fischer Tropsch synthesis using the gaseous mixture to obtain a Fischer Tropsch product having a 50 wt % recovery point above 250° C., evaporating a part of the Fischer Tropsch product in the presence of a dilution gas comprising the unconverted carbon monoxide and hydrogen from the Fischer Tropsch synthesis step and carbon dioxide into a gas and a liquid fraction and separating the liquid fraction from the remaining gas fraction, further heating the gas fraction and subjecting the gas fraction to a thermal cracking step, isolating a mixture of methane, carbon monoxide and hydrogen from the cracked gases, and recycling the mixture of methane, carbon monoxide and hydrogen to the step of preparing a gaseous mixture.