Applied Catalysis A: General (2019)
Update date:2022-08-16
Topics:
Chou, Chen-Yu
Lobo, Raul F.
Supported indium oxide catalysts are investigated for the CO2 hydrogenation to methanol at a total pressure of 40 bar (528–573 K) using a laboratory flow reactor. Surface reducibility, optical spectral characteristics, and catalytic rates and selectivity were correlated to catalyst composition. Promoted catalysts, especially Yttrium or Lanthanum-promoted indium oxide, require higher temperatures (H2-TPR) for surface reduction and display higher CO2 desorption temperatures (CO2-TPD). The promoted samples also have ?20% higher methanol selectivity compared to the non-promoted catalyst, while having similar methanol formation rates (0.330–0.420 gMeOH gcat.?1 h?1 at 573 K). From 528 K to 558 K, methanol selectivity was over 80%, over all the promoted catalysts, and nearly 100% selectivity was observed at the low temperature range (?528 K) investigated. The reaction kinetics of Y-promoted catalyst and the results of CO co-feeding experiments suggest that formate pathway is the likely reaction mechanism for methanol formation.
View MoreContact:+33-5-34012600
Address:28 ZA des Pignès
Hangzhou Think Chemical Co. Ltd
website:http://www.thinkchem.com/
Contact:86-571-89986307/81956191/81956084/81956192
Address:Room 501-502, Tower E, Yuanjian Building, Yuanyang International Center, Hangzhou-310011, China
Feiyang Biotechnology Co., Ltd.
Contact:+86-533-7866339
Address:Qilu Chemistry Park, 200m north of Management Community Building of Park
Xuzhou Tianrun Chemical Co.,Ltd
website:http://www.tianrunchem.cn
Contact:86-516-83832636
Address:fuxing road
Yurui(Shanghai)Chemical Co.,Ltd
Contact:0086 21-50456736
Address:No.3188 Xiupu Road,Shanghai
Doi:10.1002/anie.201711833
(2018)Doi:10.1021/jo00108a034
(1995)Doi:10.1016/j.saa.2016.05.013
(2016)Doi:10.1016/0022-2860(81)85040-5
(1981)Doi:10.1016/j.molliq.2012.10.032
(2013)Doi:10.1039/b211234p
(2003)