Complete hydrocracking of dibenzyl ether over a solid acid under mild conditions. (1st November 2016)

• Record Type: Journal Article
• Authors: Zhao, Mei-Xia; Wei, Xian-Yong; Qu, Meng; Kong, Jiao; Li, Zhan-Ku; Liu, Jing; Zong, Zhi-Min
• Is Part Of: Fuel. Volume 183(2016)
• Page Start: 531
• Page End: 536
• Publication Date: 2016-11-01
• Subjects: Solid acid -- Dibenzyl ether -- Hydrocracking -- Low-rank coal-related model compound; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2016.06.086
• Languages: English
• ISSNs: 0016-2361

Abstract

Graphical abstract: Highlights: A novel solid acid was prepared by impregnating TFMSA onto MPZCA. Strong interaction exists between TFMSA and MPZCA. DBE was completely hydrocracked over TFMSA/MPZCA at 160 °C without H2 . The attack of H + on O atom in DBE could be vital for DBE hydrocracking. Abstract: A novel solid acid was prepared by impregnating trifluoromethanesulfonic acid (TFMSA) onto mesoporous ZrO2 coated attapulgite (MPZCA) via one-pot synthesis method. Dibenzyl ether (DBE) was used as a coal-related model compound to evaluate the catalytic activity of TFMSA/MPZCA for cleaving Calk –O bridged bonds in low-rank coals. The results show that DBE conversion over TFMSA/MPZCA could reach 100% at 160 °C in C2 H5 OH without charging H2 . TFMSA/MPZCA proved to be stable after 4 cycles with only slight loss in catalytic activity. Moreover, a H + transfer mechanism was proposed, which reasonably deduces possible pathways for DBE hydrocracking over TFMSA/MPZCA.