TY - JOUR
T1 - Continuous Liquid-Phase Epoxidation of Ethylene with Hydrogen Peroxide on a Titanium-Silicate Catalyst
AU - Alvear, Matias
AU - Fortunato, Michele Emanuele
AU - Russo, Vincenzo
AU - Eränen, Kari
AU - Di Serio, Martino
AU - Lehtonen, Juha
AU - Rautiainen, Sari
AU - Murzin, Dmitry
AU - Salmi, Tapio
N1 - Funding Information:
This research work is part of the activities financed by Academy of Finland, through the Academy Professor grants 319002 and 320115 (T.S. and M.A.). The work was carried out in the BECCU research project coordinated by the VTT Technical Research Centre of Finland Ltd. with main funding from Business Finland.
Publisher Copyright:
© 2021 American Chemical Society. All rights reserved.
PY - 2021
Y1 - 2021
N2 - Ethylene epoxidation with hydrogen peroxide was studied in a laboratory-scale trickle bed reactor under a broad range of experimental conditions (15-80 °C, 2.5-8.5 bar) utilizing a commercial titanium-silicate catalyst (TS-1). The catalyst was very stable and selective over 150 h time-on-stream. The main reaction product was ethylene oxide, while 2-methoxyethanol and ethylene glycol were observed as kinetic byproducts. In most of the experiments, ethylene glycol was not detected at all. An increase in temperature and pressure affected negatively the ethylene oxide selectivity, while an increase in the hydrogen peroxide concentration improved both the ethylene oxide selectivity and ethylene conversion. Ethylene epoxidation was comparable with propylene epoxidation, displaying, however, important differences in activity and selectivity, which were attributed to the partial pressures studied in the present work. It was demonstrated that TS-1 is a very selective and active catalyst for the selective epoxidation of ethylene with hydrogen peroxide.
AB - Ethylene epoxidation with hydrogen peroxide was studied in a laboratory-scale trickle bed reactor under a broad range of experimental conditions (15-80 °C, 2.5-8.5 bar) utilizing a commercial titanium-silicate catalyst (TS-1). The catalyst was very stable and selective over 150 h time-on-stream. The main reaction product was ethylene oxide, while 2-methoxyethanol and ethylene glycol were observed as kinetic byproducts. In most of the experiments, ethylene glycol was not detected at all. An increase in temperature and pressure affected negatively the ethylene oxide selectivity, while an increase in the hydrogen peroxide concentration improved both the ethylene oxide selectivity and ethylene conversion. Ethylene epoxidation was comparable with propylene epoxidation, displaying, however, important differences in activity and selectivity, which were attributed to the partial pressures studied in the present work. It was demonstrated that TS-1 is a very selective and active catalyst for the selective epoxidation of ethylene with hydrogen peroxide.
UR - http://www.scopus.com/inward/record.url?scp=85110349194&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.1c01722
DO - 10.1021/acs.iecr.1c01722
M3 - Article
AN - SCOPUS:85110349194
SN - 0888-5885
VL - 60
SP - 9429
EP - 9436
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 26
ER -