PROCESS FOR PRODUCTION OF PROPYLENE

摘要

The present invention provides a process for producing propylene, comprising contacting at least one of raw material selected from the group consisting of ethylene and ethanol with a catalyst containing a medium pore diameter zeolite in a fluidized bed reactor wherein the catalyst containing the medium pore diameter zeolite satisfies the following (a) through (e):
(a) a particle diameter of catalyst particles at 90% by weight or more is within a range of 10 to 197 µm;
(b) a bulk density of the catalyst particles is within a range of 0.7 to 1.1 g/cm 3 ;
(c) a mean compressive strength of the catalyst particles having a particle diameter within a range of 30 to 70 µm is 15 MPa or more, and a compressive strength of the catalyst particles at 90% by weight or more is 10 MPa or more;
(d) an angle of repose is 20 to 30°; and
(e) a pore volume of pores having a pore radius within a range of 2000 to 20000 nm is 0.050 cc/g or less,