Preparation of Cellulose-Derived Solid Acid Catalyst and Its Use for Production of Biodiesel from Waste Oils with High Acid Value

2014 ◽  
Vol 32 (11) ◽  
pp. 1755-1761
Author(s):  
Wenyong LOU ◽  
Jun CAI ◽  
Zhangqun DUAN ◽  
Minhua ZONG
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Acid Value ◽  
High Acid ◽  
Waste Oils

scholarly journals Correction: Direct production of biodiesel from high-acid value Jatropha oil with solid acid catalyst derived from lignin

2012 ◽  
Vol 5 (1) ◽  
pp. 66 ◽  
Author(s):  
Fei-ling Pua ◽  
Zhen Fang ◽  
Sarani Zakaria ◽  
Feng Guo ◽  
Chin-hua Chia
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Acid Value ◽  
Jatropha Oil ◽  
Direct Production ◽  
High Acid

scholarly journals Direct production of biodiesel from high-acid value Jatropha oil with solid acid catalyst derived from lignin

2011 ◽  
Vol 4 (1) ◽  
pp. 56 ◽  
Author(s):  
Fei-ling Pua ◽  
Zhen Fang ◽  
Sarani Zakaria ◽  
Feng Guo ◽  
Chin-hua Chia
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Acid Value ◽  
Jatropha Oil ◽  
Direct Production ◽  
High Acid

Decreasing the acid value of pyrolysis oil via esterification using ZrO2/SBA-15 as a solid acid catalyst

2020 ◽  
Vol 146 ◽  
pp. 643-650
Author(s):  
Lu Li ◽  
Bin Yan ◽  
Huaxiao Li ◽  
Shitao Yu ◽  
Xiaoping Ge
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Acid Value ◽  
Pyrolysis Oil

scholarly journals Preparation of a Cellulase-imitated Solid Acid Catalyst With High Acid Density and Its Evaluation for Hydrolysis of Cellulose

2021 ◽  
Author(s):  
Bo Deng ◽  
Ya-xiong Wang ◽  
Li Huo ◽  
Ying Wang ◽  
Li’e Jin
Keyword(s):  
Sulfuric Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Cycle Performance ◽  
High Acid ◽  
Hydrolysis Of Cellulose ◽  
Concentrated Sulfuric Acid ◽  
Hydrolysis Of ◽  
Carbon Based

Abstract In this paper, tannic acid, a polyphenolic substance rich in plants, is modified by the glutamic acid and cross-linked with formaldehyde to prepare a high acid density tannin-glutamate acid resin-based imitation enzyme solid acid catalyst (T-Glu-R), which is completely different from traditionally carbon-based solid acid synthesized by concentrated sulfuric acid and carbonized matter. The solid acid catalyst was characterized by Fourier transform infrared spectroscopy, scanning electron microscope, thermogravimetry, and X-ray photoelectron spectroscopy. The catalytic activity and cycle performance of T-Glu-R in the cellulose hydrolysis reaction were evaluated. The results show that the acid density of T-Glu-R reached 7.28 mmol/g, which is much higher than that of the highest acid density of carbon-based solid acid. Microcrystalline cellulose was hydrolyzed in distilled water at 180 °C for 2 h, the yield of total reducing sugars reached 72.15%. After four cycles of hydrolysis, the yield was only reduced by 4.32%, showing excellent cycle performance and stability. The study provides a new strategy with the synthesis of solid acid catalyst for hydrolysis of cellulose converted into platform compounds without concentrated sulfuric acid.

Preparation and Characterization of WO3/ZrO2 Solid Acid Catalyst with Hierarchically Porous Structure

2011 ◽  
Vol 32 (4) ◽  
pp. 647-651
Author(s):  
Chongcheng CHEN ◽  
Hangrong CHEN ◽  
Jianchang YU ◽  
Zhengqing YE ◽  
Jianlin SHI
Keyword(s):  
Porous Structure ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure

Synthesis and Characterization of Heterogeneous Solid Acid Catalyst from Alstonia Scolaris Stalks for Biodiesel Production using Waste Cooking Oil

2020 ◽  
Vol 10 ◽  
Author(s):  
Charishma Venkata Sai Anne ◽  
Karthikeyan S. ◽  
Arun C.
Keyword(s):  
Reaction Time ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Wood Biomass ◽  
Waste Wood ◽  
X Ray ◽  
Cooking Oil

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.

scholarly journals Production of cellulose nanofibrils and films from elephant grass using deep eutectic solvents and a solid acid catalyst

RSC Advances ◽  
2021 ◽  
Vol 11 (23) ◽  
pp. 14071-14078
Author(s):  
Xi-Que Wu ◽  
Pan-Dao Liu ◽  
Qun Liu ◽  
Shu-Ying Xu ◽  
Yu-Cang Zhang ◽  
...  
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Cellulose Nanofibrils ◽  
Acid Catalyst ◽  
Deep Eutectic Solvents ◽  
Elephant Grass ◽  
Film Forming ◽  
New Strategy

A new strategy was developed to produce cellulose nanofibrils and films from elephant grass using deep eutectic solvents and a recyclable solid acid catalyst with assistance of ultrasonic disintegration and a suction filtration film forming method.

scholarly journals ZnAlMCM-41; a very ecofriendly and reusable solid acid catalyst for highly selective synthesis of 1, 3-dioxanes by Prins cyclization of olefins

2021 ◽  
Author(s):  
Manickam Selvaraj ◽  
Mohammed A. Assiri ◽  
Hari Singh ◽  
Jimmy Nelson Appaturi ◽  
Subrahmanyam Ch ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Selective Synthesis ◽  
Comparison Study ◽  
Catalytic Method ◽  
Prins Cyclization ◽  
Heterogeneous Catalytic

Prins cyclization of styrene (SE) with paraformaldehyde (PFCHO) was conducted with mesoporous ZnAlMCM-41 catalysts for synthesis of 4-phenyl-1,3-dioxane (4-PDO) under a liquid phase heterogeneous catalytic method. For comparison study, the...

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