摘要 |
The present invention is a process for dehydrating an alcohol to prepare a corresponding olefin, comprising: (a) providing a composition (A) comprising at least an alcohol having at least 2 carbon atoms, optionally water, optionally an inert component, in a dehydration unit, (b) placing the composition (A) into contact with an acidic catalyst in a reaction zone of said dehydration unit at conditions effective to dehydrate at least a portion of the alcohol to make a corresponding olefin, (c) recovering from said dehydration unit an effluent (B) comprising : - at least an olefin, - water, - undesired by-products including aldehydes and light products, - optionally unconverted alcohol(s), - optionally the inert component, wherein, said composition (A)-providing step (a) comprises adding an effective amount of one or more sulfur containing compound capable to reduce the undesired by-products by comparison with a non introduction of such sulfur containing compound. The component introduced at step (a) can be chosen from the group consisting of thiols, sulfides, disulfides. |
申请人 |
TOTAL RESEARCH & TECHNOLOGY FELUY;IFP ENERGIES NOUVELLES |
发明人 |
MINOUX, DELPHINE;NESTERENKO, NIKOLAI;ADAM, CINDY;VERMEIREN, WALTER;DE SMEDT, PHILIP;DATH, JEAN-PIERRE;COUPARD, VINCENT;MAURY, SYLVIE;ARIBERT, NICOLAS |