Process and the Related Simulation Research for Synthesis of tert-Butanol with Catalytic Distillation
1. Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2. Beijing Key Laboratory of Enze Biomass Fine Chemical, Beijing 102617, China;
3. Beijing University of Chemical Technology, Beijing 100026, China
Abstract：The synthesis of tert-butanol from isobutene-contained C4 raffinate and deionized water was achieved over ion exchange resins with desirable macropores and thermal stability in a catalytic distillation column. Effects of reaction pressure, temperature, space velocity of the C4 raffinate(C4, mass fraction of isobutene 24.40%) and the molar ratio of H2O to C4 on the conversion of isobutene to tert-butanol were studied. The conversion of isobutene and the selectivity of tert-butanol reached 80.07% and 99.96%, respectively, under the conditions of temperature 79 ℃, pressure 1.0 MPa, the space velocity of C4 0.3 h-1, molar ratio of H2O to C4 5:1, and ratio of top-feeding water to middle-feeding water at 5:2. The obtained results were much better than the conversional hydration of isobutene with a conversion of 60%-75%. Besides, the components of the off-gas and residue in the bottom of reactor from experiment were consistent with the simulation results by Aspen Plus.
Ye Lili 1,2,Yao Zhilong 1 et al. Process and the Related Simulation Research for Synthesis of tert-Butanol with Catalytic Distillation[J]. 化学反应工程与工艺, 2015, 31(5): 469-474.
