Premium
Continuously Conducted Selective Hydrogenation of Benzene to Cyclohexene in a Four‐Phase System
Author(s) -
Spod Hendrik,
Lucas Martin,
Claus Peter
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201500224
Subject(s) - cyclohexanol , cyclohexene , cyclohexane , cyclohexanone , benzene , catalysis , chemistry , adipic acid , caprolactam , platinum , organic chemistry , continuous stirred tank reactor , inorganic chemistry
Currently, the production of nylon 6 and nylon 6.6 is based on the complete hydrogenation of benzene to cyclohexane over nickel or platinum catalysts and its subsequent oxidation at very low conversions to a mixture of cyclohexanol/cyclohexanone. This mixture is further reacted to ϵ ‐caprolactam or adipic acid. Alternatively, the reaction can be carried out by selective hydrogenation of benzene to cyclohexene and subsequent hydration with acidic catalysts to cyclohexanol. A laboratory method for the selective hydrogenation of benzene in a continuous stirred‐tank reactor (CSTR) using a gas/liquid/liquid/solid system is presented.