Conversion of Glucose to Levulinic Acid Using SO42-/TiO2-Al2O3-SnO2 Solid Acid Catalysts

2012 ◽  
Vol 550-553 ◽  
pp. 234-237 ◽  
Author(s):  
Jun Ping Zhuang ◽  
Xue Ping Li ◽  
Ying Liu
Keyword(s):  
Levulinic Acid ◽  
Solid Acid ◽  
Low Cost ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Acid Yield ◽  
Platform Chemicals ◽  
Catalytic Effects

Biomass represents an abundant and relatively low cost carbon resource that can be utilized to produce platform chemicals such as levulinic acid. This study focused on the effect of SO42-/TiO2-Al2O3-SnO2solid acid catalyst on the catalytic performance in levulinic acid production from biomass-derived carbohydrates glucose. The SO42-/TiO2-Al2O3-SnO2solid acid catalyst showed a high catalytic activity for the selective conversion of glucose to levulinic acid. Experimental results showed that SO42-/TiO2-Al2O3-SnO2solid acid had markedly catalytic effects on the conversion of glucose to levulinic acid. With SO42-/TiO2-Al2O3-SnO2solid acid as the catalyst, an optimized ethyl levulinic acid was obtained at 180 °C for 2 h with glucose dosage of 2 wt% and 3 g SO42-/TiO2-Al2O3-SnO2solid acid catalys and the levulinic acid yield was 74.05%.

Production of Levulinic Acid from Cellulose Catalyzed by Environmental-Friendly Catalyst

2010 ◽  
Vol 96 ◽  
pp. 183-187 ◽  
Author(s):  
Pan Wang ◽  
Si Hui Zhan ◽  
Hong Bing Yu
Keyword(s):  
Catalytic Activity ◽  
Levulinic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Impregnation Method ◽  
Acid Yield ◽  
Environmental Friendly ◽  
Sulfated Tio2 ◽  
Catalyst Dosage

Using solid acid catalyst for the levulinic acid (LA) production from cellulose is one of the promising methods for utilization of biomass. An environmentally friendly solid acid catalyst, sulfated TiO2 was prepared by precipitation-impregnation method and used to catalyze the production of levulinic acid from cellulose. The concentration of sulphuric acid had a remarkable influence on the construction and catalytic activity of sulfated TiO2. The influence of reaction temperature and catalyst dosage on levulinic acid yield was also investigated with the aim to obtain the highest yield of LA. The optimum condition for the highest yield of levulinic acid (27.2%) was achieved at 240 °C, 0.7g of sulfated TiO2 and reaction time of 15 min. The recycling test indicated that the catalytic activity of the catalyst had a slight decrease after being used two times.

Optimal Process Conditions for Levulinic Acid Synthesis from Glucose Using ZSM-5 Supported SO42-/ZrO2 Catalysts

2012 ◽  
Vol 538-541 ◽  
pp. 2256-2259 ◽  
Author(s):  
Jun Ping Zhuang ◽  
Xue Ping Li ◽  
Ying Liu
Keyword(s):  
Levulinic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Acid Synthesis ◽  
Process Conditions ◽  
Optimal Process ◽  
Acid Yield ◽  
Platform Chemical

Levulinic acid has been identified as a promising green, biomass derived platform chemical. Since the availability of fossil resources diminishes, the conversion of carbohydrates to Levulinic acid has become increasingly important. ZSM-5 supported SO42-/ZrO2 solid acid catalyst have been applied for the dehydration of glucose to Levulinic acid. With ZSM-5 supported SO42-/ZrO2 solid acid as the catalyst, an optimized Levulinic acid yield was obtained at 180 °C for 2.5 h with 3 g ZSM-5 supported SO42-/ZrO2 catalyst solid acid catalys and the highest Levulinic acid yield was 55.035%.

Selective Catalytic Conversion of Glucose to 5-Hydroxymethylfurfural over Zr(H2PO4)2 Solid Acid Catalysts

2011 ◽  
Vol 236-238 ◽  
pp. 134-137 ◽  
Author(s):  
Jun Ping Zhuang ◽  
Lu Lin ◽  
Chun Sheng Pang ◽  
Ying Liu
Keyword(s):  
Systematic Study ◽  
Solid Acid ◽  
Low Cost ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Catalytic Performance ◽  
Solid Acid Catalysts ◽  
Phase System ◽  
Acid Catalysts ◽  
Two Phase

5-hydroxymethylfurfural (5-HMF) is a kind of new green platform chemical with wide application. Glucose, which is the unit compound of cellulose, is one of the most important starting chemicals from biomass. With its low cost and wide supply, the conversion of glucose to HMF has attracted the interests of researchers. In this work, a systematic study has been conducted to evaluate the catalytic performance in the conversion of glucose to 5-HMF using Zr(H2PO4)2 solid acid catalyst in isobutanol-water (1.6:1/V:V) two-phase system. An optimized 5-hydroxymethylfurfural yield of 42.32% was obtained within 1.5 h at 180 °C over Zr(H2PO4)2 with ratio of 1:1 and the glucose conversion was 94.83%. The catalyst stabilities was studied and results showed that Zr(H2PO4)2 had higher stabilities.

scholarly journals Preparation of the WOX/MCM-41 Solid Acid Catalyst and the Catalytic Performance for Solketal Synthesis

ACS Omega ◽  
2021 ◽  
Vol 6 (5) ◽  
pp. 3875-3883
Author(s):  
Yixuan Huang ◽  
Guangcai Zhang ◽  
Qinhui Zhang
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Catalytic Performance ◽  
Mcm 41

scholarly journals A Porous Polymer-Based Solid Acid Catalyst with Excellent Amphiphilicity: An Active and Environmentally Friendly Catalyst for the Hydration of Alkynes

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2091 ◽  
Author(s):  
Yizhu Lei ◽  
Maomin Zhang ◽  
Qian Li ◽  
Yu Xia ◽  
Guojun Leng
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Porous Polymer ◽  
Sustainable Chemistry ◽  
High Catalytic Activity ◽  
Exchange Method ◽  
Swelling Properties ◽  
Amberlyst 15 ◽  
Surface Areas

Developing efficient solid acid catalysts for aqueous organic reactions is of great importance for the development of sustainable chemistry. In this work, a porous polymeric acid catalyst was synthesized via a solvothermal copolymerization and a successive ion-exchange method. Physicochemical characterizations suggested that the prepared polymers possessed large Brunauer-Emmett-Teller (BET) surface areas, a hierarchically porous structure, excellent surface amphiphilicity, and nice swelling properties. Notably, an activity test in phenylacetylene hydration indicated that the prepared solid acid exhibited high catalytic activity in water, which outperformed commercial amberlyst-15, sulfuric acid, and benzenesulfonic acid. Moreover, the prepared solid acid can be easily recovered and reused at least four times. Additionally, a variety of aromatic and aliphatic alkynes could be effectively transformed into corresponding ketones under optimal reaction conditions.

Synthesis of hexyl levulinate as a potential fuel additive from levulinic acid over a solid acid catalyst

2019 ◽  
Vol 7 (5) ◽  
pp. 103420 ◽  
Author(s):  
Mahsasadat Mortazavi Tabrizi ◽  
Alireza Najafi Chermahini ◽  
Zahra Mohammadbagheri
Keyword(s):  
Levulinic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Fuel Additive

Synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by Perchlorated Zirconia (HClO4/ZrO2) nanoparticles as a novel solid acid catalyst

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Seyed Yousef Mosavian
Keyword(s):  
Solid Acid ◽  
Condensation Reaction ◽  
Solid Acid Catalyst ◽  
Sol Gel ◽  
Acid Catalyst ◽  
Catalytic Performance ◽  
Acid Sites ◽  
Zro2 Nanoparticles ◽  
Calcination Temperatures ◽  
Aldehydes And Ketones

Zirconia was synthesized in nanosize by sol-gel method and perchlorated zirconia (HClO4/ZrO2) with various calcination temperatures were prepared and characterized by XRD, FTIR and SEM techniques. The catalyst acidity characters, including the acidicstrength and the total number of acid sites were determined by potentiometric titration. The catalytic performance experiments show that the HClO4/ZrO2 with calcination temperature of 300 °C has the best catalytic activity. 2,3-Dihydroquinazolin-4(1H)-ones wereprepared in good to excellent yields via condensation reaction of oaminobenzamide and various types of aldehydes and ketones in the presence of HClO4/ZrO2 nanoparticles as an efficient solid acid catalyst. The catalyst is reusable with moderate loss in activity.

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