Jump to main content
Jump to site search

Issue 59, 2014
Previous Article Next Article

Studies on application of fish waste for synthesis of high quality biodiesel

Author affiliations

Abstract

A low cost raw material obtained from the discarded parts of fish (Cirrhinus mrigala, Cirrhinus cirrhosa, Cirrhinus reba) was utilized as feedstock oil and catalyst for the synthesis of biodiesel. Esterification followed by transesterification was carried out for the synthesis of biodiesel from waste fish oil. The discarded parts of fish after extraction of oil that included fins, tails and bones were used to derive a low cost heterogeneous catalyst for the synthesis of biodiesel. The catalyst characterized by thermo-gravimetric analysis and X-ray diffraction analysis showed the calcination temperature required and the phase of the catalyst respectively. The HAP (hydroxyapatite) present in the waste parts of fish was converted into β-tri-calcium phosphate when calcined at 900 °C for 2 h. The catalyst, β-tri-calcium phosphate was studied for its morphology and porous structure by scanning electron microscopy. A moderate experimental condition (1 : 6.5 molar ratio of oil : methanol, 1.5 wt% of heterogeneous catalyst with respect to oil) was taken for synthesis of biodiesel from waste fish oil. Biodiesel characterized by proton NMR showed a high conversion of waste fish oil to biodiesel (i.e. >96%). The yield of biodiesel determined by gravimetric method was >95%. The heterogeneous catalyst, β-tri-calcium phosphate was reused up to five times without significant loss in its activity.

Graphical abstract: Studies on application of fish waste for synthesis of high quality biodiesel

Back to tab navigation

Supplementary files

Article information


Submitted
20 Apr 2014
Accepted
02 Jul 2014
First published
03 Jul 2014

RSC Adv., 2014,4, 31462-31468
Article type
Communication
Author version available

Studies on application of fish waste for synthesis of high quality biodiesel

D. Madhu, B. Singh and Y. C. Sharma, RSC Adv., 2014, 4, 31462
DOI: 10.1039/C4RA03590A

Social activity

Search articles by author

Spotlight

Advertisements