Intensified reaction of dilute thiophenes in nanoreactor.
A discovery that catalytic reactivity is intensified on reducing the size of reactor toward several nanometers scale was applied for the separation of dilute species, for example, the thiophenic compounds in transportation fuels, in the present study. A characteristic reaction of the dilute species was selected as the separation mechanism, and a nanoreactor was formed with preloading reactant/catalyst in volumes of mesopore dimension. Probability for the dilute species to contact the nanoreactor radically enlarged due to the integration of such volumes in a porous material. Because all reagents and the reaction product stayed inside the nanoreactor, separation of fuel from sulfuric compounds and the surplus chemicals used in reaction becomes simple. It was experimentally shown that the nanoreaction exhibited first-order kinetics, and all thiophenes and benzothiophenes contained in different types of model fuels were completely removed at moderate conditions.
Zhou
Li
L
High Pressure Adsorption Laboratory, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China. zhouli@tju.edu.cn
Wang
Shengqiang
S
Dai
Wei
W
Zhou
Yaping
Y