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:
Aug. 02, 2016
Filed:
Jul. 12, 2007
Marco Di Girolamo, San Donato Milanese Milan, IT;
Massimo Conte, Peschiera Borromeo Milan, IT;
Antonio Sgambati, Milan, IT;
Alberto Cipelli, Busseto Parma, IT;
Marco Di Girolamo, San Donato Milanese Milan, IT;
Massimo Conte, Peschiera Borromeo Milan, IT;
Antonio Sgambati, Milan, IT;
Alberto Cipelli, Busseto Parma, IT;
SAIPEM S.p.A., San Donato Milanese, IT;
Abstract
Process for the production of alkyl ethers by the etherification of isobutene, contained in C-Chydrocarbon streams, with linear alcohol, in the presence of acid catalysts, comprising the following essential steps: a) feeding the isobutene contained in C-Chydrocarbon cuts, together with one or more streams containing linear alcohol, to a first reaction step; b) sending the stream leaving the first reaction step to a first distillation area, separating a light stream from a heavy stream containing the desired ether; c) feeding the light stream separated in the first distillation area, together with one or more streams containing linear alcohol, to a second reaction step; d) sending the stream leaving the second reaction step to a second distillation area separating a light stream from a heavy stream containing ether, Chydrocarbons and alcohol which is recycled to the first distillation area; e) sending the light stream in the second distillation area to a recovery section of the linear alcohol contained therein; f) recycling the linear alcohol recovered in the recovery section to at least one of the two reaction steps. The present invention relates to plant solutions which allow the alcohol/isobutene molar ratio to be increased in the reaction steps and therefore maximizing the conversion of isobutene.