Title:
PRODUCTION OF OLEFIN-FREE TERTIARY AMYL ALKYL ETHER-RICH FRACTION AND NORMAL PENTANE-RICH PARAFFIN FRACTION
Document Type and Number:
Japanese Patent JP3198356
Kind Code:
B2
Abstract:
PURPOSE: To simultaneously obtain a tert. amyl alkyl ether-rich fraction and an n-pentane-rich fraction from a 5C fraction contg. isopentenes, cyclopentene and dichloropentadiene.
CONSTITUTION: An olefin-rich 5C hydrocarbon fraction contg. isopentenes is hydrogenated as feedstock with hydrogen and a sulfur compd. at 20-150°C and 5-100 bar in the presence of a catalyst contg. a group VIII noble metal, e.g. alumina carrying Pd. The hydrogenation effluent is fractionated to obtain a 5C-rich fraction and a 6C fraction. The 5C-rich fraction is sent to an isoolefin etherification zone using an alcohol such as methanol, and after distillation, the objective fractions are obtd. By the combination of the hydrogenation, etherification and separation steps, the value of the 5C fraction from steam cracking is enhanced.
Inventors:
Patrick Sarazan
Jean kojin
Alan forrescher
Jean Paul Boischiau
Jean kojin
Alan forrescher
Jean Paul Boischiau
Application Number:
JP22279792A
Publication Date:
August 13, 2001
Filing Date:
August 21, 1992
Export Citation:
Assignee:
Institute Francais du Petrol
International Classes:
B01J23/40; C07B61/00; C07C5/03; C07C7/148; C07C9/15; C07C41/05; C07C41/20; C07C41/42; C07C43/04; C10G69/02; C07C; C10G; (IPC1-7): C07C5/03; B01J23/40; C07C7/148; C07C9/15; C07C41/05; C07C41/42; C07C43/04
Domestic Patent References:
| JP56136894A |
Attorney, Agent or Firm:
Eisuke Kishimoto (3 others)