Natural marble powder-modified SBA-15 as an efficient catalyst for the selective production of 2-methyl-2-pentenal from n-propanal self-aldol condensation
- Authors
- Kannapu, Hari Prasad Reddy; Yadagiri, Jyothi; Moogi, Surendar; Kwon, Eilhann E.; Lam, Su Shiung; Park, Young-Kwon
- Issue Date
- Feb-2021
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Bio-oil; n-propanal; 2-methyl-2-pentenal; AMW-SBA-15; Hydrophobicity
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.94, pp.448 - 456
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 94
- Start Page
- 448
- End Page
- 456
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/190162
- DOI
- 10.1016/j.jiec.2020.11.016
- ISSN
- 1226-086X
- Abstract
- In this study, conversion of n-propanal to produce 2-methyl-2-pentenal (C6 compound, a fuel range precursor) was carried out using AMW-SBA-15 catalyst synthesized from activated marble waste (AMW) consisting mainly of Ca2+ and Mg2+ ions. AMW-SBA-15 catalysts with different weight ratios of AMW/Si (6, 12, and 18 wt. %) were prepared using single step sol-gel method. The catalytic activities were examined using a fixed bed continuous reactor over temperature ranging from 350-425 degrees C under atmospheric pressure. The 12AMW-SBA-15 catalysts showed superior catalytic performance with n-propanal conversion of 75 % and C-6 compound selectivity of 81 % at 375 degrees C without the need of deactivation for 12 h. To elucidate the structure-activity relationship, all catalysts were characterized using a variety of techniques. The superior performance of 12AMW-SBA-15 was ascribed to the high surface area and smaller particle size as well as the high hydrophobicity, which controlled the hydration of Ca2+/Mg2+ ions during the reaction.
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