Patent ID: 9132414
Filing Date: 2015-09-15
Classification: B01J,C07C

Abstract:
1. A method of producing C4 olefins, comprising passing a feed of C4 monohydric alcohol over a catalyst, dehydrating of the monohydric alcohol to at least one olefin, and skeletal isomerization of at least one of the olefins produced in one and the same reaction vessel, wherein the reactions of dehydration and of isomerization are carried out in the presence of the catalyst, optionally containing a promoter, said catalyst being based on alumina, free from halogens and having a pore distribution such that the volume of pores with diameter greater than 0.1 μm measured by mercury porosimetry according to standard ASTM D4284-83 is between 10 mL/100 g and 30 mL/100 g, and a total pore volume defined by analysis using mercury porosimetry between 0.45 and 0.9 ml/g wherein said catalyst has a surface area S BET between 180 and 270 m 2 /g.