Premium
Reactivation and Reuse of Platinum‐Based Spent Catalysts for Combustion of Exhaust Organic Gases
Author(s) -
Rui Zebao,
Wu Shangren,
Ji Hongbing,
Liu Zili
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400467
Subject(s) - catalysis , combustion , catalytic combustion , sintering , platinum , toluene , chemistry , exhaust gas , reuse , aqueous solution , waste management , chemical engineering , materials science , inorganic chemistry , nuclear chemistry , organic chemistry , engineering
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 CH 4 demonstrate that air pretreatment has a slightly positive effect. NaBH 4 solution treatment leads to the highest initial activity. No pulverization of the granule size and sintering of the Pt nanoparticles happen after NaBH 4 treatment. Results from the catalytic combustion of toluene indicate that the performance of the NaBH 4 ‐treated catalyst can be further improved by combination with air pretreatment.