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Corncob to value‐added chemical transformation by metal/beta zeolite and metal/mesoporous SBA ‐15 catalytic pyrolysis
Author(s) -
Jeenpadiphat Sirima,
Kasiban Chomalee,
Tungasmita Duangamol Nuntasri
Publication year - 2016
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4852
Subject(s) - corncob , catalysis , pyrolysis , zeolite , mesoporous material , fluid catalytic cracking , chemistry , char , metal , chemical engineering , organic chemistry , materials science , nuclear chemistry , raw material , engineering
BACKGROUND Although the pyrolysis of biomass has been investigated by many researchers, there are no data available regarding conversion to value added ester compounds from catalytic corncob pyrolysis at low temperature. In this present research thermal and catalytic cracking of residue corncob was performed at 250 to 600 °C under N 2 . The performance of two acidic porous catalysts, metal‐beta zeolite and mesoporous SBA ‐15, with different metal (Al, Pd and Ni) loadings, were compared with the non‐catalytic reaction. RESULTS The cracking products were classified into gases, liquid and char. Methane, C 5 + and CO 2 were the main gas products, while light ester derivatives were the main components in the liquid fraction and these can be important intermediate chemicals. The phenolic compounds were obtained when using low thermal pyrolysis. A reaction temperature of 300 °C with the Al‐ SBA ‐15 catalyst at a SiO 2 / Al 2 O 3 mole ratio of 20 was found to be optimal in terms of producing the highest biomass conversion with a high proportion of light esters. CONCLUSION The Al‐ SBA ‐15 (20) catalyst was selective towards producing the light ester 2‐methoxy phenyl acetate (59.4%), which is an important intermediate chemical for production of sweet fruity aromas in the food industry. © 2015 Society of Chemical Industry