Waste shells of mollusk and egg as biodiesel production catalysts

Published Date
May 2010, Vol.101(10):3765–3767, doi:10.1016/j.biortech.2009.12.079

Author  

N. Viriya-empikul ^a

P. Krasae ^b

B. Puttasawat ^b

B. Yoosuk ^b

N. Chollacoop ^b

K. Faungnawakij ^a,,

aNational Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Rd., Klong Luang, Pathumthani 12120, Thailand

bNational Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, 114 Thailand Science Park, Phahonyothin Rd., Klong Laung, Pathumthani 12120, Thailand

Received 28 September 2009. Revised 17 December 2009. Accepted 18 December 2009. Available online 15 January 2010. 

Abstract

The solid oxide catalysts derived from waste shells of egg, golden apple snail, and meretrix venus were employed to produce biodiesel from transesterification of palm olein oil. The shell materials were calcined in air at 800 °C with optimum time of 2–4 h to transform calcium species in the shells into active CaO catalysts. All catalysts showed the high biodiesel production activity over 90% fatty acid methyl ester (FAME) in 2 h, whilst the eggshell-derived catalyst showed comparable activity to the one derived from commercial CaCO₃. The catalytic activity was in accordance with the surface area of and the Ca content in the catalysts.

Keywords

Biodiesel

Heterogeneous catalyst

Waste shells of mollusk and egg

CaO

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 Table 1

Table 1.

Fig. 1.

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