Selective conversion of furfuryl alcohol into ethyl levulinate over Zr modified tungstophosphoric acid supported on β-zeolite

2021 ◽  
Author(s):  
Yogita Y ◽  
Bolla Srinivasarao ◽  
Ch Subrahamayam ◽  
N. Lingaiah
Keyword(s):  
Furfuryl Alcohol ◽  
Tungstophosphoric Acid ◽  
Zeolite Catalysts ◽  
Impregnation Method ◽  
Selective Conversion ◽  
Β Zeolite ◽  
Ethyl Levulinate ◽  
Zeolite P

Zirconium exchanged with the protons of tungstophosphoric acid (TPA) supported on β-zeolite catalysts are prepared by impregnation method for the selective alcoholysis of furfuryl alcohol into ethyl levulinate. The prepared...

Crystal facet-dependent activity of h-WO3 for selective conversion of furfuryl alcohol to ethyl levulinate

2020 ◽  
Vol 22 (46) ◽  
pp. 26923-26934
Author(s):  
Guoming Gao ◽  
Mingxuan Lv ◽  
Yuewen Shao ◽  
Guanggang Gao ◽  
Hui Zhao ◽  
...  
Keyword(s):  
Furfuryl Alcohol ◽  
Crystal Facet ◽  
Selective Conversion ◽  
Ethyl Levulinate ◽  
Dependent Activity

The (110) facet of h-WO3 boosted the selective conversion of furfuryl alcohol to ethyl levulinate.

Pd 3 Pb Nanosponges for Selective Conversion of Furfural to Furfuryl Alcohol under Mild Condition

Small Methods ◽  
2021 ◽  
pp. 2100400
Author(s):  
Minki Jun ◽  
Heesu Yang ◽  
Dongyong Kim ◽  
Gi Joo Bang ◽  
Minah Kim ◽  
...  
Keyword(s):  
Mild Condition ◽  
Furfuryl Alcohol ◽  
Selective Conversion

Selective conversion of furfuryl alcohol to levulinic acid by SO3H-containing silica nanoflower in GVL/H2O system

2021 ◽  
Vol 171 ◽  
pp. 124-132
Author(s):  
Ruoqing Wang ◽  
Feng Shen ◽  
Yiwei Tang ◽  
Haixin Guo ◽  
Richard Lee Smith ◽  
...  
Keyword(s):  
Furfuryl Alcohol ◽  
Levulinic Acid ◽  
Selective Conversion

A Green and Sustainable Approach for Acetalization of Benzaldehyde Using Tungstophosphoric Acid Loaded on Metal Oxide Catalysts

2019 ◽  
Vol 41 (5) ◽  
pp. 805-805
Author(s):  
Li Fanghao Li Fanghao ◽  
Li Chenjie Li Chenjie ◽  
Chen Junyi Chen Junyi ◽  
Wang Kuiwu Wang Kuiwu ◽  
Zhang Haijiang Zhang Haijiang ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Condensation Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Synergetic Effect ◽  
Reaction Model ◽  
Oxide Catalysts ◽  
Tungstophosphoric Acid ◽  
Impregnation Method ◽  
Metal Oxide Catalysts

A series of tungstophosphoric acid (H3PW12O40; HPW) loaded on metal oxide catalysts, namely H3PW12O40/M (M= TiO2, CeO2, ZrO2) was prepared by initial wetting impregnation method and their catalytic performances were also investigated during the condensation reaction of benzaldehyde with glycol. Among them, the 20 wt% H3PW12O40/TiO2 catalyst demonstrated highly active with superior acetal yield (90.1 %) and excellent durability. The high activity of the catalyst derived from high surface area, ultra-strong Brand#248;nsted acidity and synergetic effect of Brand#248;nsted-Lewis acid. Response surface methodology (RSM) based on Box-Behnken design (BBD) was used to optimize the course of the condensation reaction of benzaldehyde with glycol, and the optimal benzaldehyde glycol acetal yield (93.4 %) could be obtained. The optimized yield and the experimental results are similar. Moreover, under optimal reaction conditions, the activation energy (Ea) of reaction could be obtained through the kinetic study of the irreversible parallel reaction model, and the Ea was 23.24 kJ/mol.

Selective conversion of furfuryl alcohol into butyl levulinate over zinc exchanged heteropoly tungstate supported on niobia catalysts

2017 ◽  
Vol 427 ◽  
pp. 80-86 ◽  
Author(s):  
B. Srinivasa Rao ◽  
P. Krishna Kumari ◽  
D. Dhanalakshmi ◽  
N. Lingaiah
Keyword(s):  
Furfuryl Alcohol ◽  
Selective Conversion

Synergy of B and Al Dopants in Mesoporous MFI Nanocrystals for Highly Selective Alcoholysis of Furfuryl Alcohol into Ethyl Levulinate

2019 ◽  
Vol 7 (6) ◽  
pp. 1900271 ◽  
Author(s):  
Meng-Ying Wang ◽  
Hui Su ◽  
Guang-Yao Zhai ◽  
Qiu-Ying Yu ◽  
Hong-Hui Wang ◽  
...  
Keyword(s):  
Furfuryl Alcohol ◽  
Ethyl Levulinate

scholarly journals The Influence of Ce or Mn Doping on Cu-Based Catalysts for De-NOx with NH3-SCR

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Lei Jiang ◽  
Yixi Cai ◽  
Miaomiao Jin ◽  
Zengzan Zhu ◽  
Yinhuan Wang
Keyword(s):  
Low Temperature ◽  
Physicochemical Properties ◽  
Topological Structure ◽  
Zeolite Catalysts ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
Performance Tests ◽  
Nh3 Scr ◽  
Temperature Window ◽  
Different Doses

In this study, the de-NOx performance of Cu-based zeolite catalysts supported on topological structure (SSZ-13, BEA, ZSM-5) and loaded with different doses of copper (from 2 to 6 wt.%) was investigated. The preparation of copper-based catalysts adopted the incipient wetness impregnation method. To analyze the physicochemical properties of the catalysts, advanced techniques like BET, XRD, NH3-TPD, H2-TPR, and DRS UV-Vis were used. The performance tests suggested the 4Cu/SSZ-13 catalyst exhibited higher low-temperature activity and wider temperature window. Furthermore, compared with Mn-Cu/SSZ-13, the Ce-Cu/SSZ-13 catalysts exhibited better de-NOx performance.

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