Process for the preparation of high purity cyclohexane
Abstract
Abstract TEMERPATURE IN THE INITIAL CATALYST REACTION LAYER IS 165-220*C. HIGH PURITY CYCLOHEXANE IS PRODUCED BY HYDROGENATION OF BENZENE IN A PLURALITY OF SERIES-CONNECTED CATALYTIC REACTORS WHEREIN BENZENE, PREFERABLY FREE OF IMPURITIES, IS FED TO THE FIRST REACTOR, HYDROGENATION GAS IS RECYCLED FROM THE LAST TO THE FIRST REACTOR AND AT A POINT INTERMEDIATE THE FIRST AND LAST REACTOR, A PORTION OF THE PARTIALLY DEPLETED HYDROGENATION GAS IS WITHDRAWN AND FRESH HYDROGENATION GAS, I.E., A GAS HAVING A HIGH HYDROGEN CONTENT, FED TO THE SYSTEM. THE MOLE RATIO OF HYDROGEN TO BENZENE FEED IS 3-3.8:1, THE VOLUMETRIC RATIO OF HYDROGENATION GAS NOT WITHDRAWN TO THAT WHICH IS WITHDRAWN AT THE DEPLETED HYDROGENATION GAS SEPARATOR IS 6-80:1, AND THE
Inventors
- 👤 Seiya Otani
- 👤 Takao Iwamura
- 👤 Toru Yamazaki
- 👤 Yoshio Noguchi
- 👤 Takeaki Akatsuka
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