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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Medeiros, Nicholas J. Boyd, Donal J. Snell, Jared R. Clark, William M. |
| Description | Country affiliation: United States Author Affiliation: Clark WM ( Chemical Engineering Department, Worcester Polytechnic Institute, Worcester, MA 01609, USA. wmclark@wpi.edu) |
| Abstract | Quantification of a pH change that was observed over the course of the transesterification reaction that converts vegetable oil to biodiesel may provide a simple method to monitor the reaction. Transesterification of canola oil at 6:1 methanol to oil ratio with 0.5 wt.% KOH as catalyst was studied at 25, 35, and 45 °C. Reaction conversion was correlated to pH measurements and the results were shown to be in agreement with an independent measure of conversion using an enzymatic assay for glycerol. Rate constants obtained from these measurements are consistent with those in the literature. The measured pH change appears to be related to dilution of OH(-) ions as the oil is converted to products rather than to depletion of OH(-) due to reaction. |
| ISSN | 09608524 |
| Volume Number | 136 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-05-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biochemistry Methods Biofuels Analysis Esterification Hydrogen-ion Concentration Hydroxides Pharmacology Kinetics Potassium Compounds Temperature Time Factors Journal Article Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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