scholarly journals Utilization of Carbide Lime Waste as Base Catalyst for Biodiesel Production

2018 ◽  
Vol 7 (4.35) ◽  
pp. 700 ◽  
Author(s):  
Koguleshun Subramaniam ◽  
Sasidevan Munusamy ◽  
Fei-ling Pua ◽  
Mohd Aizat Mohd Nasir ◽  
Rohaya Othman ◽  
...  
Keyword(s):  
Ester Group ◽  
Catalytic Performance ◽  
Biodiesel Production ◽  
Strength Analysis ◽  
Solid Base ◽  
Base Catalyst ◽  
Solid Base Catalyst ◽  
X Ray ◽  
Solid Base Catalysts ◽  
Base Catalysts

Calcium rich solid base catalyst was synthesized from local waste carbide lime and its catalytic performance was evaluated via biodiesel production. Carbide lime waste was used to produce CLW-I and CLW-II solid base catalyst using different preparation methods. Characterization including base strength analysis, scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) were investigated. Catalytic strength was examined by deploying the solid base catalysts for transesterification reaction of palm oil. Fourier Transform Infra-red (FTIR) was used to analyze the presence of ester group in biodiesel. The yield of biodiesel conversion was calculated based on the mass of biodiesel and glycerol. The highest biodiesel conversion rate of 75.30% was achieved by CLW-I solid base catalyst at 9% loading. The good catalytic performance of carbide lime waste derived solid base catalysts proves that it has high potential to replace the usage of conventional catalyst in the biodiesel industry.

Influence of Preparation Conditions of the Solid Base Catalyst on the Performance of Synthesizing Polyglycerol

2012 ◽  
Vol 549 ◽  
pp. 109-112
Author(s):  
Jia Wei Qu ◽  
Min Wei Wang ◽  
Ren Lang Wang
Keyword(s):  
Reaction Time ◽  
Catalyst Preparation ◽  
Solid Base ◽  
Polymerization Degree ◽  
Base Catalyst ◽  
Solid Base Catalyst ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Preparation Conditions ◽  
Catalyst Type

Different solid base catalysts used for the polymerization of glycerol were prepared by impregnation. Catalyst type and the preparation conditions were optimized on the base of polymerization degree. Results showed: the best catalyst was KF/Al2O3, and optimal condition for catalyst preparation was as follows: loading of 40% KF, calcinations temperature 600°C. The polymerization degree of 5.92 was obtained under the following reaction condition: the amount of catalyst 11.62,reaction temperature 250°C, reaction time 4 h.

Deacidification of Jatropha Curcas Oil by Extraction for Biodiesel Production

2013 ◽  
Vol 291-294 ◽  
pp. 207-211
Author(s):  
Xue Jun Liu ◽  
Hai Yan Zhang ◽  
Ning Ai ◽  
Mei Zhen Lu ◽  
Yu Min Li ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Jatropha Curcas ◽  
Acid Value ◽  
Biodiesel Production ◽  
Solid Base ◽  
Base Catalyst ◽  
Solid Base Catalyst ◽  
Ethanol Extraction ◽  
Jatropha Curcas Oil ◽  
Base Catalysts

The acid value of jatropha curcas oil is 9.41mgKOH/g. The most of fatty acids should be removed if base catalysts are adopted to catalyze the transesterification reaction for biodiesel production in case of soap formation. In this study, methanol and ethanol were adopted to extract the fatty acids in jatropha curcas oil. Then, it was catalyzed by calcium methoxide for biodiesel production. The extracted fatty acids can be used to produce biodiesel at supercritical or sulfuric acid conditions. The results indicated that the acid value of jatropha curcas oil decrease to 0.31 mgKOH/g from 9.41 mgKOH/g using ethanol extraction for 3 times at 25°C. The biodiesel yield exceeded 96% using solid base catalyst. The advantages of methanol and ethanol extractions are low oil loss and high biodiesel yield.

Experiment Study on Biodiesel Produced from Soybean Oil by Solid Base Catalysts

2011 ◽  
Vol 236-238 ◽  
pp. 641-644 ◽  
Author(s):  
Feng Xian Ma ◽  
Jing Xia Li
Keyword(s):  
Soybean Oil ◽  
Raw Materials ◽  
Molar Ratio ◽  
Solid Base ◽  
Base Catalyst ◽  
Solid Base Catalyst ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Ester Exchange ◽  
Ester Exchange Reaction

In this paper, biodiesel is successfully produced by the ester exchange reaction with solid base catalyst of K2O/Ti-HMS based on soybean oil as raw materials. The result of which shows that K2O/Ti-HMS has good ester exchange activity as solid base catalyst and the catalyst easily is separated from products. By single factor experiment, the influence of K2O load, molar ratio of methanol and oil and catalyst dosage on the biodiesel conversion rate is researched and the optimal relationship between the above parameters is obtained.

scholarly journals Core–shell magnetic mesoporous N-doped silica nanoparticles: solid base catalysts for the preparation of some arylpyrimido[4,5-b]quinoline diones under green conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (58) ◽  
pp. 35397-35406
Author(s):  
Shekofeh Neamani ◽  
Leila Moradi ◽  
Mingxuan Sun
Keyword(s):  
Silica Nanoparticles ◽  
Solid Base ◽  
Core Shell ◽  
Base Catalyst ◽  
Solid Base Catalyst ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Green Conditions

Preparation of core–shell magnetic mesoporous N-doped silica nanoparticles as a new solid base catalyst was studied. obtained catalyst was used for the preparation of some arylpyrimido[4,5-b]quinoline diones under green conditions.

scholarly journals Investigation of solid base catalysts for biodiesel production from fish oil

2019 ◽  
Vol 139 ◽  
pp. 661-669 ◽  
Author(s):  
Despoina Papargyriou ◽  
Emmanouil Broumidis ◽  
Matthew de Vere-Tucker ◽  
Stelios Gavrielides ◽  
Paul Hilditch ◽  
...  
Keyword(s):  
Fish Oil ◽  
Biodiesel Production ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts

scholarly journals Environmentally Benign Neem Biodiesel Synthesis Using Nano-Zn-Mg-Al Hydrotalcite as Solid Base Catalysts

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Karthikeyan Chelladurai ◽  
Manivannan Rajamanickam
Keyword(s):  
Methyl Esters ◽  
Catalytic Performance ◽  
Environmentally Benign ◽  
Bet Surface Area ◽  
Molar Ratio ◽  
Solid Base ◽  
Synthetic Compound ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Biodiesel Synthesis

Hydrotalcite, also known as aluminum-magnesium layered double hydroxide (LDH) or anionic clay, is a synthetic compound that was broadly investigated in the past decade due to its many potential applications. In this work, we present an environmentally benign process for the transesterification (methanolysis) of neem oil to fatty acid methyl esters (FAME) using Zn-Mg-Al hydrotalcites as solid base catalysts in a heterogeneous manner. The catalysts were characterized by XRD, FT-IR, TPD-CO2, and the BET surface area analysis. It is well-known that the catalytic performance of hydrotalcite is dramatically increased through the incorporation of Zn into the surface of Mg-Al hydrotalcite material. The optimized parameters, 10 : 1 methanol/oil molar ratio with 7.5 g catalysts reacted under stirring speed 450 rpm at 65°C for 4 h reaction, gave a maximum ester conversion of 90.5% for the sample with Zn-Mg-Al ratio of 3 : 3 : 1.

Synthesis of Biodiesel from Neem Oil Using Mg-Al Nano Hydrotalcite

2013 ◽  
Vol 678 ◽  
pp. 268-272 ◽  
Author(s):  
R. Manivannan ◽  
C. Karthikeyan
Keyword(s):  
Methyl Esters ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Solid Base ◽  
Neem Oil ◽  
Solid Base Catalysts ◽  
Animal Fats ◽  
Base Catalysts ◽  
Benign Process ◽  
Nano Catalysts

Abstract Methyl ester of fatty acids, derived from vegetable oils or animal fats are known as biodiesel. The most common method of biodiesel production is transesterification (alcoholysis) of oil (triglycerides) with methanol in the presence of a catalyst which gives biodiesel (fatty acid methyl esters, FAME) and glycerol (by product). In this work, an environmentally benign process for the methanolysis of neem oil to methyl esters using Mg–Al nano hydrotalcites as solid base catalysts in a heterogeneous manner was developed. The effect of the reaction temperature, reaction time, catalyst amount, and methanol /oil molar ratio on the Mg-Al nano hydrotalcite was analyzed. The nano catalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM). Biodiesel produced from the neem oil by using Mg-Al nano hydrotalcite catalyst was analyzed by gas chromatography.

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