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Title: Ethyl tert-butyl ether (ETBE) synthesis on H-Mordenite: Gas-phase kinetics and DRIFTS studies

Abstract

The ethyl tert-butyl ether (ETBE) formation between 313 and 363 K over an H-mordenite catalyst was studied in a packed-bed flow catalytic reactor at atmospheric pressure. An activation energy of 82 kJ/mol and reaction orders in isobutene and ethanol of 0.8 and -0.8 were found. In situ diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) was used to study the state of the catalyst under reaction conditions. The IR studies, coupled with the reaction kinetics information, are consistent with the idea that the stability of the H-mordenite catalyst requires the protective action of ethanol to prevent the occurrence of isobutene oligomerization products. The high ethanol concentrations found in the zeolite pores under the temperature and pressure conditions employed is also responsible for reaction inhibition. 27 refs., 13 figs., 1 tab.

Authors:
; ;  [1]
  1. Univ. of Nebraska-Lincoln, NB (United States); and others
Publication Date:
OSTI Identifier:
224035
Resource Type:
Journal Article
Journal Name:
Journal of Catalysis
Additional Journal Information:
Journal Volume: 157; Journal Issue: 2; Other Information: PBD: Dec 1995
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; 10 SYNTHETIC FUELS; 02 PETROLEUM; ETHERS; CHEMICAL PREPARATION; MORDENITE; CATALYTIC EFFECTS; CHEMICAL REACTION KINETICS; CATALYSTS; ACTIVATION ENERGY; ABSORPTION SPECTROSCOPY; ZEOLITES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K

Citation Formats

Larsen, G, Lotero, E, and Marquez, M. Ethyl tert-butyl ether (ETBE) synthesis on H-Mordenite: Gas-phase kinetics and DRIFTS studies. United States: N. p., 1995. Web. doi:10.1006/jcat.1995.1330.
Larsen, G, Lotero, E, & Marquez, M. Ethyl tert-butyl ether (ETBE) synthesis on H-Mordenite: Gas-phase kinetics and DRIFTS studies. United States. https://doi.org/10.1006/jcat.1995.1330
Larsen, G, Lotero, E, and Marquez, M. 1995. "Ethyl tert-butyl ether (ETBE) synthesis on H-Mordenite: Gas-phase kinetics and DRIFTS studies". United States. https://doi.org/10.1006/jcat.1995.1330.
@article{osti_224035,
title = {Ethyl tert-butyl ether (ETBE) synthesis on H-Mordenite: Gas-phase kinetics and DRIFTS studies},
author = {Larsen, G and Lotero, E and Marquez, M},
abstractNote = {The ethyl tert-butyl ether (ETBE) formation between 313 and 363 K over an H-mordenite catalyst was studied in a packed-bed flow catalytic reactor at atmospheric pressure. An activation energy of 82 kJ/mol and reaction orders in isobutene and ethanol of 0.8 and -0.8 were found. In situ diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) was used to study the state of the catalyst under reaction conditions. The IR studies, coupled with the reaction kinetics information, are consistent with the idea that the stability of the H-mordenite catalyst requires the protective action of ethanol to prevent the occurrence of isobutene oligomerization products. The high ethanol concentrations found in the zeolite pores under the temperature and pressure conditions employed is also responsible for reaction inhibition. 27 refs., 13 figs., 1 tab.},
doi = {10.1006/jcat.1995.1330},
url = {https://www.osti.gov/biblio/224035}, journal = {Journal of Catalysis},
number = 2,
volume = 157,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 1995},
month = {Fri Dec 01 00:00:00 EST 1995}
}