ie6b02640_si_001.pdf (625.22 kB)
0/0

Catalytic Effect of the SUS316 Reactor Surface on the Hydrolysis of Benzamide in Sub- and Supercritical Water

Download (625.22 kB)
journal contribution
posted on 09.09.2016 by Makoto Akizuki, Nanae Fujioka, Yoshito Oshima
The catalytic effect of an SUS316 reactor surface on the hydrolysis of benzamide in sub- and supercritical water was investigated at 350–450 °C and 25–65 MPa. Tube reactors having different surface area to volume ratios were used to distinguish the effect of the homogeneous reaction and the surface-catalyzed reaction. The surface of an SUS316 reactor acted as a heterogeneous catalyst for the hydrolysis reaction. Kinetic analysis indicated that surface Fe2O3 mainly contributes to the catalytic effect of SUS316. Both homogeneous and surface-catalyzed reactions occurred, and the contribution of each reaction depended on water density. The surface-catalyzed reaction was dominant at low water density, and the contribution from the homogeneous reaction became larger with increasing water density. Furthermore, at 400 °C and 25 MPa, hydrolysis products promoted the reaction.

History

Exports