| abstract |
The invention relates to a method for isomerising dehydration of a feedstock comprising at least one primary monoalcohol, alone or in a mixture, of formula R-CH2-OH, wherein R is a non-linear alkyl radical of general formula CnH2n+1, wherein n is an integer from 3 to 20, said method operating in gas phase at a weighted mean temperature of 200°C to 275°C, at a pressure of 0.1 MPa to 1 MPa and at a WHSV (weight hourly space velocity) of 1 h-1 to 18 h-1, in the presence of a catalyst comprising at least one zeolite in H or NH4 form having at least one series of channels of which the opening is defined by a ring with 8 oxygen atoms (8MR), said zeolite being formed with at least one alumina binder, said binder lacking at least one of the elements selected independently among Si, Ti, Zr, F, Cl, Br and I. The invention likewise relates to said catalyst and a preparation method. |