Preparation of Cotton Methyl Ester and Cotton Ethyl Ester for Shock Tube Investigation
Journal Title: INTERNATIONAL JOURNAL OF ENGINEERING TRENDS AND TECHNOLOGY - Year 2014, Vol 11, Issue 5
Abstract
This paper describes an experimental effort for the production of cotton methyl ester (CME) and cotton ethyl ester (CEE) from neat cottonseed oil (CSO) for use as a biodiesel fuel and investigation the ignition delay times of these fuels using the shock tube. The transesterification of the neat CSO with methanol or ethanol have been performed using different variables to determine the optimum conditions for the preparation. The experiments were simulated at reaction temperature, 60 0C. The optimum parameters were cottonseed oil / alcohol molar ratio, 1:6; NaOH amount, 1% by the weight of the oil and reaction time, 75 min. The 89% of the neat CSO was converted to CME or CEE and the use of different alcohols (methanol or ethanol) present few differences with regards to the kinetics of reaction but the final yield of esters remains almost unchanged. The physical properties of all the tested fuels are measured. The ignition delay times were measured using a piezo-electric pressure transducer; charge amplifier, data acquisition card, IBM computer and LabVIEW program. For the all fuels, the minimum ignition delay times occur near the stoichiometric condition.
Authors and Affiliations
H. E. Saleh , Ahmad. S. K. Attaiep
Keywords
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