Results
Title

Reactivation and Reuse of Platinum-Based Spent Catalysts for Combustion of Exhaust Organic Gases.

Authors

Rui, Zebao; Wu, Shangren; Ji, Hongbing; Liu, Zili

Abstract

The optimum pretreatment method for a Pt-based spent catalyst for the removal of exhaust organic gases was examined. Two different pretreatment procedures with gas and aqueous solution were evaluated. Results obtained from the catalytic combustion of trace CH4 demonstrate that air pretreatment has a slightly positive effect. NaBH4 solution treatment leads to the highest initial activity. No pulverization of the granule size and sintering of the Pt nanoparticles happen after NaBH4 treatment. Results from the catalytic combustion of toluene indicate that the performance of the NaBH4-treated catalyst can be further improved by combination with air pretreatment.

Subjects

PLATINUM; SPENT catalysts; COMBUSTION gases; TOLUENE; AQUEOUS solutions

Publication

Chemical Engineering & Technology, 2015, Vol 38, Issue 3, p409

ISSN

0930-7516

Publication type

Academic Journal

DOI

10.1002/ceat.201400467