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- W2782767018 abstract "Abstract Biomass‐derived phenolic compounds and small oxygenates obtained from pyrolysis of lignocellulosic biomass needs to be upgraded to obtain the C 10 ‐C 13 range fuel precursors. In this context, iso ‐propylation of m ‐cresol was performed in batch reactors using multifunctional ionic liquids (ILs) as catalysts. Environmentally benign Bronsted‐Lewis acidic ILs were synthesized and characterized using 1 H NMR, 13 C NMR and Raman spectroscopic data. Relative Bronsted and Lewis acidity of these ILs were compared using UV‐Visible and FTIR spectroscopic data and the effect of acidity on the catalytic activity and product selectivity in alkylation of m‐ cresol with iso ‐propyl alcohol was investigated. Correlation of acidity and catalytic activity was confirmed by theoretical DFT study on IL structures. High conversion of m ‐cresol (95.6%) was obtained using ZnCl 2 containing IL, at 393 K temperature and 2:1:1 alcohol: m‐ cresol: IL molar ratio, within 5 h of reaction time. The activity and recoverability of these ILs were retained even after 8 recycles. The effect of process parameters like reaction time, temperature, reactant mole ratio and catalyst to reactant mole ratio was investigated and optimized from design of experiments results. A plausible reaction mechanism was formulated based on the product distribution and a kinetic model was developed to estimate the activation energy (45.70 kJ mol −1 ) and pre‐exponential factor (247.78 lit. mol −1 min −1 )." @default.
- W2782767018 created "2018-01-26" @default.
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- W2782767018 date "2018-01-09" @default.
- W2782767018 modified "2023-09-26" @default.
- W2782767018 title "Synergistic Bronsted-Lewis Acidity Effect on Upgrading Biomass-Derived Phenolic Compounds: Statistical Optimization of Process Parameters, Kinetic Investigations and DFT Study" @default.
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- W2782767018 doi "https://doi.org/10.1002/slct.201702848" @default.
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