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Journal of Renewable Energy
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2016
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Article
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Fig 2
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Research Article
Biodiesel Production from Castor Oil by Using Calcium Oxide Derived from Mud Clam Shell
Figure 2
SEM images of heterogeneous catalyst and its raw material.
(a)
Mud clam shell (CaCO
3
)
(b)
Mud clam shell CaO
(c)
Commercial CaO