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:
May. 06, 2014
Filed:
Mar. 15, 2011
Pieter Struelens, Gooik, BE;
Pierre Jacobs, Gooik, BE;
Nikolai Nesterenko, Nivelles, BE;
Delphine Minoux, Nivelles, BE;
Sander Van Donk, Guildford, GB;
Jean-pierre Dath, Beloeil, BE;
Pieter Struelens, Gooik, BE;
Pierre Jacobs, Gooik, BE;
Nikolai Nesterenko, Nivelles, BE;
Delphine Minoux, Nivelles, BE;
Sander Van Donk, Guildford, GB;
Jean-Pierre Dath, Beloeil, BE;
Total Research & Technology Feluy, Seneffe (Feluy), BE;
Abstract
A process to make propylene can include providing a reaction zone containing a catalyst and introducing a feedstock into the reaction zone. The catalyst can be an acid. The feedstock can include ethylene, dimethyl ether or methanol and dimethyl ether with at least 1000 wppm of dimethyl ether, and optionally steam. The feedstock can be contacted with the catalyst at temperature and pressure conditions to produce an effluent, including propylene, hydrocarbons, steam, optionally unconverted methanol and/or unconverted dimethyl ether and optionally unconverted ethylene. The temperature at the inlet of the reaction zone can be under 280° C., such as from 50 to 280° C. The effluent can be sent to a fractionation zone to recover propylene, optionally methanol, dimethyl ether and optionally ethylene. At least a part of methanol, dimethyl ether, and ethylene can be recycled to the reaction zone at step b).