Journal
BIORESOURCE TECHNOLOGY
Volume 101, Issue 22, Pages 8515-8519Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.06.082
Keywords
Quail eggshell; Transesterification; Palm oil; Biodiesel; Methanol
Funding
- Ministry of Education, Science and Technology [2009-0094056]
- National Research Foundation of Korea [2009-0094056] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The transesterification of palm oil with methanol was investigated over calcium oxide catalysts prepared by calcining eggshells of quail and chicken. Compared to chicken eggshell, the palisade layer of quail eggshell had more closely dispersed micron-sized pores. Following treatment with 0.005 M HCl solution for 2 h to remove its dense cuticle layer and subsequent calcination above 800 degrees C, the quail eggshell had a large amount of strong basic sites and showed high catalytic activity comparable to that of potassium methoxide in the transesterification. The acid-treated, quail eggshell catalyst steadily maintained high conversions of over 98% during repeated fivefold usage at 65 degrees C with a reactant composed of methanol/oil (as mol) = 12/1 and oil/catalyst (as g)= 2/0.03. (C) 2010 Elsevier Ltd. All rights reserved.
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