TECHNOLOGICAL CHALLENGES FOR THE PRODUCTION OF BIODIESEL ...

1 Universidad de C rdoba (Espa a) TECHNOLOGICAL CHALLENGES FOR THE PRODUCTION OF BIODIESEL IN ARID LANDS Diego LunaDepartamento de Qu mica Org nica, Universidad de C rdoba, Campus de Rabanales, Edificio. Marie Curie, E-14014 C rdoba, Spain. Green Catalyst, Campus de Rabanales, E-14014 C rdoba, FOR BIOFUELS AND BIODIESEL IN ARID LANDS (BIO3) Friday, November 26, 2010 Universidad de C rdoba (Espa a)Hexadecane (also called cetane) is an alkane hydrocabon with the chemical formula C16H34, a chain of 16 carbon atomsMolecular formulaC16H34 Molar g/molMelting point18 C, 291 K, 64 FBoiling point287 C, 560 K, 549 FSolubility in waterInsolubleFlash point135 CAutoignition temperature201 CTriglyceride molecule modelFriday, November 26, 2010 Universidad de C rdoba (Espa a)Conventional Transesterification process of triglyceride moleculesBiodiesel typically comprises of fatty acid (chains C14 C22)

2 Esters of short-chain alcohols, mainly methanol Three molecules of fatty acid methyl esters (FAME) and one molecule of glycerol are generated for every molecule Friday, November 26, 2010 Universidad de C rdoba (Espa a)Strengths and weaknesses of the available different methods for the PRODUCTION of the mixtures of methyl esters of fatty acids that constitute FAME, the conventional Temperature/ C Economic charges Improvements Basic reactionN a O H , KOH60 Low Available technologyAcid reactionH2SO455 - 120 LowDo not form soapssupercritical alcohol -239-385 Medium Uses no catalyste n z y m a t i c processLipases45 -55 HighLow level of wastesFriday, November 26, 2010 Universidad de C rdoba (Espa a)

3 Pilot scale material balance for Jatropha oil transesterification using NaOH (1 %) as catalyst Friday, November 26, 2010 Universidad de C rdoba (Espa a)Lurgi Transesterification , November 26, 2010 National Sustainable Agriculture Information is the national sustainable agriculture information service operated by the National Center for Appropriate Technology, through a grant from the Rural Business-Cooperative Service, Department of Agriculture. These organizations do not recommend or endorse products, companies, or individuals.

4 NCAT has offices in Fayetteville, Arkansas ( Box 3657, Fayetteville, AR 72702), Butte, Montana, and Davis, CaliforniaBy David Ryan, Energy SpecialistDecember 2004 NCAT 2004 BIODIESEL - A PrimerAbstract: This publication is an introduction to BIODIESEL productionWashing BiodieselUnwashed BIODIESEL will not meet ASTM (American Society of Testing and Materials) standards. For more information about ASTM standards, and testing and specifications for BIODIESEL and other diesel fuels, see Resources.

5 Remember, equipment and engine manufacturers only warranty their equipment and engines for their material and manufacturer defects. Fuel manufacturers (in this case, you) assume responsibility for any damage caused by the fuel. Washing BIODIESEL is easy to do, and requires only water and de C rdoba (Espa a)Friday, November 26, 2010 Universidad de C rdoba (Espa a)Processes of Dehydration (1), Oxidation (2) and Polymerization (3), undertaken by the residual glycerol in the BIODIESEL , inside the engines working at higher , November 26, 2010 Universidad de C rdoba (Espa a)

6 Polymer deposition resulting from a use of biodi sel with an inadequate oxidation resulting from soap deposition (bio-diesel with an excessively high alkaline or alkaline earth content). Friday, November 26, 2010 Universidad de C rdoba (Espa a)Friday, November 26, 2010 Universidad de C rdoba (Espa a) PRODUCTION of high-quality biofuel from vegetable oils through removal of oxygen in triglyceride molecules by overall hydrotreatment in conventional , November 26, 2010 Universidad de C rdoba (Espa a)Composition of the high-quality biofuels obtained from vegetable oils through the hydroprocessing routes to transportation fuels in conventional biogasoline hydrobiodiesel (or H- BIODIESEL )

7 Friday, November 26, 2010 Universidad de C rdoba (Espa a)DMC-BIOD is a patented biofuel (Notari and Rivetti, 2004) that integrates the glycerine as glycerol carbonate, in a process that can be developed by enzymatic technology (Su et al, 2007) obtained by crossed transesterification reaction of a triglyceride with dimethyl carbonate, obtaining a mix of three moles of FAMEs and one mole of glyceryl carbonate (GC). Friday, November 26, 2010 Universidad de C rdoba (Espa a)Gliperol is a biofuel patented by the Industrial Chemistry Research Institute of Varsow (Poland), (Kije!)

8 Ski et al, 2004), consisting of a mixture of three moles of FAME or FAEE and a mole of triacetin, that can be obtained by the cross transesterification of ethyl acetate and the corresponding triglycerides in an enzymatic catalyzed process (Modi et al., 2007).Friday, November 26, 2010 Universidad de C rdoba (Espa a)Ecodiesel , is a biofuel which incorporates the glycerol as monoglyceride, produced by enzymatic technology and patented by the University of Cordoba (Luna et al, 2007).

9 It is composed of two moles of ethyl esters of fatty acids (FAEE) and a mole of monoglyceride ( MG).Friday, November 26, 2010 Universidad de C rdoba (Espa a). (TRIOLEIN) (TG !!>DG) [MW: TG " 3/2 DG]CH3-(CH2)7-CH=CH- (CH2)7-COO-CH2 CH3-(CH2)7-CH=CH-(CH2)7-COO-CH2 # k1 #CH3-(CH2)7-CH=CH- (CH2)7-COO-CH !!>CH3-(CH2)7-CH=CH-(CH2)7-COO-CH # #CH3-(CH2)7-CH=CH- (CH2)7-COO-CH2 + CH2OH CH3-(CH2)7-CH=CH-(CH2)7-COOCH2CH3 (FAEE)

10 (DG !!>MG) [MW: DG " 1/2 MG]CH3-(CH2)7-CH=CH- (CH2)7-COO-CH2 CH2OH # k2 #CH3-(CH2)7-CH=CH- (CH2)7-COO-CH !!>CH3-(CH2)7-CH=CH-(CH2)7-COO-CH # # CH2OH + CH2OH