RTU Research Information System
Latviešu English

Publikācija: Biodiesel Synthesis from Rapeseed Oil in the Presence of Sodium and Potassium Hydroxides

Publication Type Publications in RTU scientific journal
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Biodiesel Synthesis from Rapeseed Oil in the Presence of Sodium and Potassium Hydroxides
Field of research 2. Engineering and technology
Sub-field of research 2.4 Chemical engineering
Authors Valdis Kampars
Kristaps Māliņš
Tatjana Rusakova
Zane Ābelniece
Jānis Brinks
Keywords biodiesel, homogeneous basic catalysts, evaluation of catalyst formulation
Abstract Biodiesel is produced by methanolysis or ethanolysis of triglycerides, and there are many factors affecting the transesterification process. The most important variables of the transesterification reaction are as follows: quality of the oil, catalyst type, concentration of catalyst, molar ratio of alcohol to oil, temperature and reaction time. The literature studies show that there is not a generally accepted procedure for the characterisation of transesterification reactions results and catalyst formulation activity. Therefore, even the evaluation of the usability of the most utilised industrial catalysts (sodium hydroxide and potassium hydroxide) is inconsistent. The experimental investigations of the transesterification reactions of high quality rapeseed oil in the presence of the above mentioned catalysts by change of all the variables allow us to regard two different characteristics of each reaction (reaction yield and process yield) that has to be determined. The comparison of these two characteristics gives a new instrument for classification of catalyst formulations. In the case of high quality rapeseed oil, sodium hydroxide and potassium hydroxide have shown a similar activity. Sodium hydroxide is more preferable when the concentration area of the used catalysts is low, but potassium hydroxide – at the high concentration area of catalysts.
DOI: 10.7250/msac.2013.003
Reference Kampars, V., Māliņš, K., Rusakova, T., Šustere, Z., Brinks, J. Biodiesel Synthesis from Rapeseed Oil in the Presence of Sodium and Potassium Hydroxides. Materials Sciences and Applied Chemistry. Vol.28, 2013, pp.15-20. ISSN 1407-7353. e-ISSN 2255-8713. Available from: doi:10.7250/msac.2013.003
Full-text Full-text
ID 16615