Journal of Energy Bioscience
            
            
              2013, Vol.4, No.2, 7-15 http://jeb.sophiapublisher.com
            
            
              
                Review
              
            
            
              
                Open Access
              
            
            
              
                A Review of Thermo-chemical Energy Conversion Process of Non-edible Seed
              
            
            
              
                Cakes
              
            
            
              J. Thiagarajan , P.K. Srividhya , E. Rajasakeran
            
            
              Department of Mechanical Engineering, Periyar Maniammai University, Vallam, Thanjavur, India
            
            
              Corresponding Author email: srividya.aravazhi@gmail.com;
            
            
              Author
            
            
              Journal of Energy Bioscience, 2013, Vol.4, No.2 doi: 10.5376/jeb.2013.04.0002
            
            
              
                Copyright
              
            
            
              © 2013 Srividhya et al. This is an open access article published under the terms of the Creative Commons Attribution License, which permits
            
            
              unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
            
            
              
                Abstract
              
            
            
              In India, efforts were being made for using non-edible oils for production of bio-diesel on account of country’s
            
            
              potentiality in non-edible oil tree born seeds.
            
            
              
                Jatropha curcas
              
            
            
              (Jatropha) and
            
            
              
                Pongamia pinnata
              
            
            
              (Karanja) crops had been selected as
            
            
              major source of non-edible oils for production of biodiesel. Considering the future scenario of non edible oil seed’s utilization for
            
            
              biodiesel production, there is a need for efficient utilization of their cakes. The main focus of this review is about the options of
            
            
              energy conversions, for production of suitable fuel. The brief overview of energy conversion option on seed cake is presented by
            
            
              means of general background information available in literatures. From the solvent extracted jatropha seed cake and mechanically de
            
            
              oiled jatropha seed cake the quantity of biogas obtained by biomethanation process was 0.5 m
            
            
              3
            
            
              /kg and 0.6 m
            
            
              3
            
            
              /kg respectively with
            
            
              CH
            
            
              4
            
            
              content of 50% to 70%. By using pongaima seed cake as feed material the yield of average specific biogas over a 30-day
            
            
              retention time was 0.703 m
            
            
              3
            
            
              •day
            
            
              -1
            
            
              •kg
            
            
              -1
            
            
              TS with 62.5% of CH
            
            
              4
            
            
              content. Faster conversion rate and using all the components of
            
            
              biomass includes cellulose, hemicelluloses and lignin were the advantages of thermo chemical conversion process over biological
            
            
              conversion process. Energy production through gasification conversion route is suitable as the process of synfuels from biomass will
            
            
              lower the energy cost, waste management improvement and reduction of harmful emission. Experiments on non edible oil seed cake
            
            
              by gasification conversion route and analyzing for its characteristics are more essential for useful energy recovery and its use for
            
            
              thermal application and power generation.
            
            
              
                Keywords
              
            
            
              Non edible oil seeds; Bio diesel; De-oiled cake; Bio mass gasifier
            
            
              
                Introduction
              
            
            
              The universe has gifted with more than hundred
            
            
              species of tree born non edible oil seeds that could be
            
            
              used for extraction of oil which could be
            
            
              supplemented /substituted for the conventional fuel.
            
            
              India is emerging fast in using no edible oils for the
            
            
              production of bio diesel through B20 policy of bio
            
            
              fuel with conventional diesel (Radhakrishna, 2003).
            
            
              The table 1 shows the availability of non edible seeds,
            
            
              oil, cake and oil content in India. In that the Sal is 1.5
            
            
              million metric tons per year followed by Neem,
            
            
              Mahua and Mango.
            
            
              The trees and plants like Jatropha, Karanja, Rice-bran,
            
            
              Castor, Sal, Neem, Mahua, Linseed, rubber-seed etc
            
            
              could grow well on waste land and could withstand
            
            
              draught and dry conditions producing nontraditional
            
            
              oil seeds. Oil extraction from these seeds and
            
            
              conversion into bio diesel production provided
            
            
              opportunities for rural employment and wealth
            
            
              generation to the marginalize sections of the society
            
            
              (Agarwal et al., 2007). For making bio diesel techno
            
            
              economically as viable and renewable substitute or
            
            
              supplement to diesel certain barriers needed to be
            
            
              reviewed.
            
            
              The technology of biodiesel production consumed
            
            
              only extracted vegetable oil from non-edible seeds and
            
            
              left large amount of unutilized biomass as seed cake.
            
            
              Jouranal of Energy Bioscience
            
            
              
                Preferred citation for this article:
              
            
            
              Srividhya et al., 2013, A Review of Thermo-chemical Energy Conversion Process of Non-edible Seed Cakes, Journal of Energy Bioscience, Vol.4, No.2
            
            
              7-15 (doi: 10.5376/jeb.2013.04.0002)
            
            
              Received: 06 Mar., 2013
            
            
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              Accepted: 12 Oct., 2013
            
            
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              Published: 21 Oct., 2013