Efficient Conversion of Furfuryl Alcohol into Alkyl Levulinates Catalyzed by an Organic-Inorganic Hybrid Solid Acid Catalyst

ChemSusChem ◽  
2011 ◽  
Vol 4 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Zehui Zhang ◽  
Kun Dong ◽  
Zongbao Kent Zhao
2016 ◽  
Vol 1 (19) ◽  
pp. 6079-6085 ◽  
Author(s):  
Md. Mominul Islam ◽  
Subhajit Bhunia ◽  
Rostam Ali Molla ◽  
Asim Bhaumik ◽  
Sk. Manirul Islam

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 113
Author(s):  
Jianguang Liang ◽  
Li Ji ◽  
Jiarui He ◽  
Shuxin Tang ◽  
Yucai He

In this work, the feasibility of chemoenzymatically transforming biomass-derived D-xylose to furfuryl alcohol was demonstrated in a tandem reaction with SO42−/SnO2-CS chemocatalyst and reductase biocatalyst in the deep eutectic solvent (DES)–water media. The high furfural yield (44.6%) was obtained by catalyzing biomass-derived D-xylose (75.0 g/L) in 20 min at 185 °C with SO42−/SnO2-CS (1.2 wt%) in DES ChCl:EG–water (5:95, v/v). Subsequently, recombinant E.coli CF cells harboring reductases transformed D-xylose-derived furfural (200.0 mM) to furfuryl alcohol in the yield of 35.7% (based on D-xylose) at 35 °C and pH 7.5 using HCOONa as cosubstrate in ChCl:EG–water. This chemoenzymatic cascade catalysis strategy could be employed for the sustainable production of value-added furan-based chemical from renewable bioresource.


ChemInform ◽  
2013 ◽  
Vol 44 (41) ◽  
pp. no-no
Author(s):  
Lanchang Gao ◽  
Liu Bing ◽  
Zehui Zhang ◽  
Huang Kecheng ◽  
Hu Xiaoyun ◽  
...  

Author(s):  
Charishma Venkata Sai Anne ◽  
Karthikeyan S. ◽  
Arun C.

Background: Waste biomass derived reusable heterogeneous acid based catalysts are more suitable to overcome the problems associated with homogeneous catalysts. The use of agricultural biomass as catalyst for transesterification process is more economical and it reduces the overall production cost of biodiesel. The identification of an appropriate suitable catalyst for effective transesterification will be a landmark in biofuel sector Objective: In the present investigation, waste wood biomass was used to prepare a low cost sulfonated solid acid catalyst for the production of biodiesel using waste cooking oil. Methods: The pretreated wood biomass was first calcined then sulfonated with H2SO4. The catalyst was characterized by various analyses such as, Fourier-transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDS) and X-ray diffraction (XRD). The central composite design (CCD) based response surface methodology (RSM) was applied to study the influence of individual process variables such as temperature, catalyst load, methanol to oil molar ration and reaction time on biodiesel yield. Results: The obtained optimized conditions are as follows: temperature (165 ˚C), catalyst loading (1.625 wt%), methanol to oil molar ratio (15:1) and reaction time (143 min) with a maximum biodiesel yield of 95 %. The Gas chromatographymass spectrometry (GC-MS) analysis of biodiesel produced from waste cooking oil was showed that it has a mixture of both monounsaturated and saturated methyl esters. Conclusion: Thus the waste wood biomass derived heterogeneous catalyst for the transesterification process of waste cooking oil can be applied for sustainable biodiesel production by adding an additional value for the waste materials and also eliminating the disposable problem of waste oils.


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