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• W4220804724 abstract "A highly active and selective mesoporous TiO 2 was developed by the sol-gel hydrolysis technique for the selective transformation of glucose to 5-hydroxymethylfurfural (5-HMF). The catalytic performance was tested in a glass tube reactor, and the reaction parameters were optimized using response surface methodology (RSM). The best-optimized reaction conditions were obtained using four-factors, four-responses, and the 5-level central composite design (CCD) integrated with the desirability approach. At the optimum reaction condition, RSM predicted complete conversion of glucose and a very high 5-HMF yield of ~56% in the dimethylsulfoxide (DMSO) solvent. The predicted yield of other major products, including formic acid (FA) and levulinic acid (LA), was ~18% and ~2%, respectively. The empirical process model developed by RSM was validated by the experimental data generated. Experimental results demonstrated that the TiO 2 catalyst developed can easily be recycled with a constant glucose conversion and 5-HMF yield. Further, a new liquid-liquid extraction method (LLE) is proposed to extract 5-HMF from the product. The results depicted that 5-HMF can easily be extracted from the product mixture with very high purity (~96%). Additionally, the Power-Law kinetic study suggested that the conversion of glucose over TiO 2 followed the first-order kinetics, and the calculated activation energy was 67.5 kJ mol −1 . • Highly selective and stable TiO 2 catalyst was developed for glucose dehydration. • Response surface methodology was used to optimize the reaction condition. • A maximum 5-hydroxymethylfurfural yield of 56% was achieved at ~100% conversion. • Glucose dehydration reaction followed the first-order Power-Law. • A new liquid-liquid extraction process is proposed for the separation of 5-HMF." @default.
• W4220804724 created "2022-04-03" @default.
• W4220804724 creator A5003993577 @default.
• W4220804724 creator A5018759484 @default.
• W4220804724 date "2022-11-01" @default.
• W4220804724 modified "2023-09-29" @default.
• W4220804724 title "Optimization of reaction parameters by using response surface methodology (RSM) for the selective dehydration of glucose to 5-hydroxymethylfurfural (5-HMF), a valuable platform chemical over a mesoporous TiO2 catalyst in dimethylsulfoxide (DMSO) medium" @default.
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• W4220804724 doi "https://doi.org/10.1016/j.cattod.2022.03.019" @default.
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