A Th m va tr ca th ce tr m am fo st bo so th at th at m

Proceedings of the Third Internatiional Symposium
m on Renewable E
Energy and Sustaainability,
Temixco, Moreloos, México, Septeember 9-11, 20155
ANALYSISS OF QUALITTY OF PROD
DUCTION OFF BIODIESELL FROM CRU
UDE AVOC
CADO OILS BY RAMAN AND INFRA
ARED SPECTTROSCOPY L. A. Juárez M
Morán1, J. Díaaz Reyes2 1
Faacultad de Ciencias Fisicomatématticas, Beneméritaa Universidad Auttónoma de Puebla. Av. San Claudio
o y 18 Sur. 2
Co
ol. San Manuel, Ciiudad Universitarria. Puebla, Puebla. 72570. México
o; Centro de Inveestigación en Biotecnología Ap
plicada, Instituto Politécnico Nacio
onal. Ex–Hacienda de San Juan M
Molino. Km 1.5 dee la Carretera Esttatal Santa Inéés Tecuexcomac‐Tepetitla. Tepetittla, Tlaxcala. 907000. México. Correesponding authorr: lu
uisjumo13@hotm
mail.com. A
Abstract: Th
he process of transestterification,, also called
d alcoholyssis, is the method m
m
most commo
only used for f the prod
duction of biodiesel. Crude C
oil avvocado vaariety Fuertte was extrracted by ceentrifugatio
on. To the crude c
avocaado oil trransesterificcation was reacted w
with methaanol and ttwo conventional caatalyst (KOH
H and NaOH
H) for 1 hou
ur at a temp
perature of 60°C. In thiis work th
he transestterification of crude oil, avocaado class III extractted by ceentrifugatio
on was anaalyzed by in
nfrared and
d Raman sspectroscop
py. The trransesterificcation was carried out with methanol an
nd KOH. Th
he oil‐
m
methanol mo
olar ratio w
was varied 1:4, 1:6 y 1:8
8, while keeeping constaant the am
mount of ccatalyst, tem
mperature and a time. B
By FTIR meeasurementss were fo
ound biodieesel characteeristic peakks located at 1196 cm‐11 attributed to the sttretching vib
bration of tthe methyl group and 1437 cm‐1 iin the asym
mmetric bo
ound CH3, eexcept the ssample with molar ratio
o 1:4. By Raman spectro
oscopy so
ome significcant differences betweeen the spectra and the sample o
oil after th
he transesteerification p
process weree observed.. A shift of tthe band ob
bserved ‐1
att 1750 to 17
742 cm atttributed to C = O was o
observed, w
which may ssuggest th
hat there is no bond with the moleecule of glyccerin and a new peak appears att 863 cm‐1 aattributed to
o ((R‐C=O an
nd C‐C), whiich is due to
o formation
n of the m
methyl ester. L. A. Juárez Morán, J. Díaz Reyyes.(2015) Analyysis of quality of production o
of biodiesel fro
om crude avvocado oils byy raman and iinfrared spectrroscopy. Poster Session: Biofuels and Alteernatives; Prroceedings of th
he Third Interna
ational Sympossium on Renew
wable Energy an
nd Sustainabilityy (Eds. E. Saantoyo, P.J. Sebastian, M. Lópeez de Haro), Tem
mixco, Morelos,, México, September 9‐11, 20115.