POLYHEMA BASED SILICOTUNGSTIC ACID CATALYSTS FOR VAPOR PHASE ETHYL TERT-BUTYL ETHER (ETBE) SYNTHESIS

被引：0
作者：
Degirmenci, Levent [1 ]
Oktar, Nuray [2 ]
机构：
[1] Bilecik Univ, Muhendisl Fak, Kimya & Surec Muhendisligi Bolumu, TR-11210 Gulumbe, Bilecik, Turkey
[2] Gazi Univ, Muhendisl Fak, Kimya Muhendisligi Bolumu, TR-06570 Ankara, Turkey
来源：
JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY | 2012年 / 27卷 / 03期
关键词：
PolyHEMA; STA; catalyst; isobutene; ETBE; TUNGSTOPHOSPHORIC ACID; RESIN CATALYSTS; SILICA; ADSORPTION; MTBE; TAME; MECHANISM; ETHANOL; KEGGIN; FILMS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The activity of PolyHema-Silico tungstic acid (PH-STA) catalysts were investigated for vapor phase ETBE production conducted between 353-373K with isobutene/ethanol (IB/EtOH) molar ratio of 0.17. IB conversions to ETBE were found to be close to the equilibrium value with these synthesized catalysts. Activity test of PH-STA (25/75 v/v HEMA EGDMA) at 373K revealed a conversion value of 0.17 which was higher than that obtained in the presence of pure STA in our previous study. Comparison of the activity with pure STA revealed an improvement in the activity of PH-STA even though the active material in catalyst had been 8% (w/w). Catalyst stability was tested by repeated experiments conducted in the presence of PH-STA catalysts treated with ethanol. TGA analysis revealed changes in the molecular structure of synthesized catalysts with a change in temperature. Glass transition temperature (Tg) of polyHEMA was determined as 136 degrees C by DSC analysis. FTIR and XPS analyses of polyHEMA and polyHEMA based STA catalysts revealed formation of polymeric structure in addition to STA. Acidic nature of the synthesized catalysts were determined by DRIFTS analysis.
引用
收藏
页码：641 / 650
页数：10
相关论文
共 50 条
  • [21] Ethyl tert-butyl ether (ETBE) and tert-amyl methyl ether (TAME) can affect distribution pattern of inorganic N in soil
    Bartling, Johanna
    Schloter, Michael
    Wilke, Berndt-Michael
    BIOLOGY AND FERTILITY OF SOILS, 2010, 46 (03) : 299 - 302
  • [22] Ethyl tert-butyl ether (ETBE) and tert-amyl methyl ether (TAME) can affect distribution pattern of inorganic N in soil
    Johanna Bartling
    Michael Schloter
    Berndt-Michael Wilke
    Biology and Fertility of Soils, 2010, 46 : 299 - 302
  • [23] Optimal design of reactive distillation systems: Application to the production of ethyl tert-butyl ether (ETBE)
    Domingues, Luis
    Pinheiro, Carla I. C.
    Oliveira, Nuno M. C.
    COMPUTERS & CHEMICAL ENGINEERING, 2014, 64 : 81 - 94
  • [24] Bio-based membranes for ethyl tert-butyl ether (ETBE) bio-fuel purification by pervaporation
    Abdellatif, Faten Hassan Hassan
    Babin, Jerome
    Arnal-Herault, Carole
    Nouvel, Cecile
    Six, Jean-Luc
    Jonquieres, Anne
    JOURNAL OF MEMBRANE SCIENCE, 2017, 524 : 449 - 459
  • [25] Estimation of catalyst deactivation parameters of ethyl tert-butyl ether (ETBE) reactors based on industrial plant data
    Domingues, Luis
    Pinheiro, Carla C.
    Oliveira, Nuno M. C.
    Vilelas, Andre
    Fernandes, Jorge
    Ribeiro, Fernando Ramoa
    22 EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, 2012, 30 : 1002 - 1006
  • [26] Potential of stable isotope analysis to deduce anaerobic biodegradation of ethyl tert-butyl ether (ETBE) and tert-butyl alcohol (TBA) in groundwater: a review
    van der Waals, Marcelle J.
    Thornton, Steven F.
    Rolfe, Stephen A.
    Rock, Luc
    Smith, Jonathan W. N.
    Bosma, Tom N. P.
    Gerritse, Jan
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2024, 31 (11) : 16685 - 16695
  • [27] Ethyl tert-butyl ether (EtBE) degradation by an algal-bacterial culture obtained from contaminated groundwater
    van der Waals, Marcelle J.
    Plugge, Caroline
    Meima-Franke, Marion
    de Waard, Pieter
    Bodelier, Paul L. E.
    Smidt, Hauke
    Gerritse, Jan
    WATER RESEARCH, 2019, 148 : 314 - 323
  • [28] Feasibility Study on the Etherification of Fermentative-Produced Isobutylene to Fully Renewable Ethyl Tert-Butyl Ether (ETBE)
    Tretbar, Maik
    Witzel, Thomsen
    Hauffe, Anika
    Junghans, Ulrike
    Bulc, Ales
    Pufky-Heinrich, Daniela
    CATALYSTS, 2018, 8 (11):
  • [29] Synthesis of ethyl tert-butyl ether from tert-butyl alcohol and ethanol on strong acid cation-exchange resins
    Yang, BL
    Yang, SB
    Yao, RQ
    REACTIVE & FUNCTIONAL POLYMERS, 2000, 44 (02) : 167 - 175
  • [30] Isolation and characterization of two aerobic bacterial strains that completely degrade ethyl tert-butyl ether (ETBE)
    M. Kharoune
    L. Kharoune
    J. Lebeault
    A. Pauss
    Applied Microbiology and Biotechnology, 2001, 55 : 348 - 353
12345