TY - JOUR
T1 - Two-step biodiesel production from Jatropha curcas crude oil using SiO 2·HF solid catalyst for FFA esterification step
AU - Corro, Grisel
AU - Tellez, Nallely
AU - Ayala, Edgar
AU - Marinez-Ayala, Alma
N1 - Funding Information:
The authors acknowledge support from FOMIX-CONACYT-Gobierno del Estado de Puebla (Project 76981) and from Vicerrectoria de Investigacion y Estudios Avanzados, BUAP (Mega Proyecto de Ahorro de Energia y Energias Alternativas), and from SIPDCA-PROMEP (Redes Tematicas de Colaboracion Academica 2009).
PY - 2010
Y1 - 2010
N2 - A high quality biodiesel was produced from Mexican Jatropha curcas crude oil (JCCO) by a two step catalyzed process. The free fatty acids (FFA) were first esterified with methanol, catalyzed by a solid catalyst: SiO2 pretreated with HF. The catalyst showed a high number of Lewis acid surface sites, and no CO2 or H2O adsorption activity. This catalyst showed a high FFA esterification activity and high stability. After 30 esterification runs, the catalyst activity remained unchanged. During the second step, the triglycerides present in the JCCO were transesterified with methanol catalyzed by NaOH. The chromatographic analysis of the biodiesel obtained, revealed that the process proposed in this investigation led to a very high quality biodiesel, meeting the international requirements for its utilization as a fuel. The combustion gas emissions of the JCCO biodiesel were studied by FTIR spectroscopy using a laboratory combustor. These preliminary results showed low amounts of aromatic and sulfur containing compounds. However, halogenated compounds and dicyclopentadiene were also detected at the combustor exhaust.
AB - A high quality biodiesel was produced from Mexican Jatropha curcas crude oil (JCCO) by a two step catalyzed process. The free fatty acids (FFA) were first esterified with methanol, catalyzed by a solid catalyst: SiO2 pretreated with HF. The catalyst showed a high number of Lewis acid surface sites, and no CO2 or H2O adsorption activity. This catalyst showed a high FFA esterification activity and high stability. After 30 esterification runs, the catalyst activity remained unchanged. During the second step, the triglycerides present in the JCCO were transesterified with methanol catalyzed by NaOH. The chromatographic analysis of the biodiesel obtained, revealed that the process proposed in this investigation led to a very high quality biodiesel, meeting the international requirements for its utilization as a fuel. The combustion gas emissions of the JCCO biodiesel were studied by FTIR spectroscopy using a laboratory combustor. These preliminary results showed low amounts of aromatic and sulfur containing compounds. However, halogenated compounds and dicyclopentadiene were also detected at the combustor exhaust.
KW - Biodiesel
KW - Biodiesel emissions
KW - Heterogeneous acid catalyst
KW - Jatropha curcas oil
UR - http://www.scopus.com/inward/record.url?scp=77954782367&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2010.04.023
DO - 10.1016/j.fuel.2010.04.023
M3 - Artículo
SN - 0016-2361
VL - 89
SP - 2815
EP - 2821
JO - Fuel
JF - Fuel
IS - 10
ER -