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Title: Enhancing kinetics of biodiesel production using morpholine

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Journal Article: Publisher's Accepted Manuscript
Journal Name:
Catalysis Communications
Additional Journal Information:
Journal Volume: 83; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 16:34:58; Journal ID: ISSN 1566-7367
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Citation Formats

Bala, Dharshini D., and Chidambaram, Dev. Enhancing kinetics of biodiesel production using morpholine. Netherlands: N. p., 2016. Web. doi:10.1016/j.catcom.2016.05.006.
Bala, Dharshini D., & Chidambaram, Dev. Enhancing kinetics of biodiesel production using morpholine. Netherlands. doi:10.1016/j.catcom.2016.05.006.
Bala, Dharshini D., and Chidambaram, Dev. 2016. "Enhancing kinetics of biodiesel production using morpholine". Netherlands. doi:10.1016/j.catcom.2016.05.006.
title = {Enhancing kinetics of biodiesel production using morpholine},
author = {Bala, Dharshini D. and Chidambaram, Dev},
abstractNote = {},
doi = {10.1016/j.catcom.2016.05.006},
journal = {Catalysis Communications},
number = C,
volume = 83,
place = {Netherlands},
year = 2016,
month = 8

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.catcom.2016.05.006

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  • Research highlights: {yields} Waste sunflower frying oil is successfully converted to biodiesel using lipase as catalyst. {yields} Various process parameters that affects the conversion of transesterification reaction such as temperature, enzyme concentration, methanol: oil ratio and solvent are optimized. {yields} Inhibitory effect of methanol on lipase is reduced by adding methanol in three stages. {yields} Polar solvents like n-hexane and n-heptane increases the conversion of tranesterification reaction. - Abstract: Waste sunflower frying oil is used in biodiesel production by transesterification using an enzyme as a catalyst in a batch reactor. Various microbial lipases have been used in transesterification reaction tomore » select an optimum lipase. The effects of various parameters such as temperature, methanol:oil ratio, enzyme concentration and solvent on the conversion of methyl ester have been studied. The Pseudomonas fluorescens enzyme yielded the highest conversion. Using the P. fluorescens enzyme, the optimum conditions included a temperature of 45 deg. C, an enzyme concentration of 5% and a methanol:oil molar ratio 3:1. To avoid an inhibitory effect, the addition of methanol was performed in three stages. The conversion obtained after 24 h of reaction increased from 55.8% to 63.84% because of the stage-wise addition of methanol. The addition of a non-polar solvent result in a higher conversion compared to polar solvents. Transesterification of waste sunflower frying oil under the optimum conditions and single-stage methanol addition was compared to the refined sunflower oil.« less
  • The energy crisis pushes the development and intensification of biodiesel production process. Biodiesel is produced by transesterification of vegetable oils or animal fats and conventionally produced by using acid/base catalyst. However, the conventional method requires longer processing time and obtains lower yield of biodiesel. The microwave has been intensively used to accelerate production process and ionic liquids has been introduced as source of catalyst. This paper discusses the overview of the development of biodiesel production through innovation using microwave irradiation and ionic liquids catalyst to increase the yield of biodiesel. The potential microwave to reduce the processing time will bemore » discussed and compared with other energy power, while the ionic liquids as a new generation of catalysts in the chemical industry will be also discussed for its use. The ionic liquids has potential to enhance the economic and environmental aspects because it has a low corrosion effect, can be recycled, and low waste form.« less
  • One of the major impacts that humans have had on the world is the consequence of the use of natural resources of the planet, whose purpose has been the energy supply for economic and technological development. This economic development has caused an increase in the demand for goods and services in industrialized countries, and in turn has led to an increase in per capita consumption of energy worldwide. For this reason, it is very important to develop new energy alternatives to reduce the actual dependence on petroleum and, at the same time, reduce the impact of emissions of greenhouse gasesmore » to the environment. An alternative to using fossil fuels is biodiesel, which is biodegradable, eco-friendly, and represents an economical source of energy. Biodiesel may be produced by the transesterification reaction of new or used vegetable oils (for example sunflower, corn, or olive oil) with a short chain alcohol (methanol) in the presence of a catalyst (NaOH). In the present work we have synthesized biodiesel from these three types of vegetable oils that have been subsequently characterized. Different chemical tests have been used to ensure the quality of the biodiesel obtained. The results indicate that sunflower oil provided better efficiency biodiesel, followed by corn and olive oils. CO 2 emissions that could affect the environment were, in all cases, less than 4.1%.« less