Open AccessCatalytic Combustion of Voc in Air Stream Over Bimetallic Chromium-Copper Supported On Sicl4-Modified H-Zsm-5 Catalyst
Author(s) -
Anas Abdullah,
Mohamad Zailani Abu Bakar,
S. Bhatia
Publication year - 2010
Publication title -
iium engineering journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.141
H-Index - 6
eISSN - 2289-7860
pISSN - 1511-788X
DOI - 10.31436/iiumej.v7i1.75
Subject(s) - bimetallic strip , catalysis , chromium , catalytic combustion , space velocity , silicon tetrachloride , copper , combustion , zsm 5 , chemistry , inorganic chemistry , materials science , chemical engineering , silicon , metallurgy , selectivity , zeolite , organic chemistry , engineering
The performance of chromium (Cr) and copper (Cu) on silicon tetrachloride modified H-ZSM-5 (SiCl4-Z) catalyst in VOC combustion is reported. H-ZSM-5, modified with SiCl4 at 500?C for 3 h was impregnated with 1.0 wt. % of Cr and 0.5 wt. % of Cu. Performance studies were carried out at GHSV of 3,800 to 32,000 h-1 with 2,000 to 35,000 ppm of VOC. Changes in the activity of Cr-Cu/ SiCl4-Z were ascribed to extra framework deposits, surface acidity and pore characteristics. Cr-Cu/SiCl4-Z catalyst was more stable to coking, humidity and HCl than Cr-Cu/Z. In the combustion of chlorinated VOC, the chlorination of metal species deactivated the catalyst by rendering lower redox ability.