Title: Fusel oil molecular sieve gas phase dewatering method and separating and purifying method
Application Number: 03129744 Application Date: 2003.05.13
Publication Number: 1458260 Publication Date: 2003.11.26
Approval Pub. Date: Granted Pub. Date: 2006.01.04
International Classifi-cation: C12F3/00,B01D15/08,C07C29/76
Applicant(s) Name: Tianjin Univ. Address: 300072
Inventor(s) Name: Zhang Minhua, Liu7 Baoju
Attorney & Agent: wang li
Abstract:
     The present invention proposes the technological scheme of separation and purifying fusel oil through combining molecular sieve vapor phase dewatering and rectification. Fuel oil fraction gas containing water is introduced to adsorbing apparatus for selective adsorption of fusel alcohol and water at operation gage pressure of 0-0.6 MPa and temperature 190-300 deg.c; and after water is adsorbed by the adsorbent, various alcohols and esters are condensated to obtain qualified fuel alcohol product. The through dewatering of the fusel oil material can solve the difficult problem that water and various alcohols form azeotrope to lower the yield of separated fuel oil products. The thorough dewatered fuel oil in further rectified and separated intermittently or continuously to obtain fuel alcohol, isopropyl alcohol, isobutyl alcohol, isoamyl alcohol, ethyl caprate and other products.
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