Transesterification of soybean oil by PAAc catalytic membrane: Sorption properties and reactive performance for biodiesel production

Gloria Aca-Aca, María I. Loría-Bastarrachea, F. Alberto Ruiz-Treviño and Manuel Aguilar-Vega

Renewable Energy, 2018, vol. 116, issue PA, 250-257

Abstract: A catalytic performance study for biodiesel production by a novel catalytically active membrane from polyacrylic acid (PAAc) crosslinked with 4,4′-diamino-2,2′-biphenyl sulfonic acid (PAAc-BDSA) was performed. Evaluation of oil and methanol sorption capacity as well as heterogeneous acid catalyzed transesterification of soybean oil by PAAc-BDSA was compared to polyvinyl alcohol, PVA (88% and 99% hydrolysed) catalytically active membranes crosslinked with sulfosuccinic acid (PVA-88-SSA and PVA-99-SSA). PAAc-BDSA membranes with similar ion exchange capacity (IEC) presented at least twice the swelling degree (Q) for soybean oil and methanol than PVA-88-SSA and PVA-99-SSA membranes. Effective diffusion coefficients of PAAc-BDSA for methanol and a mixture of methanol-glycerol determined by sorption method show that in this membrane the diffusion was at least 4 to 6 times faster than in PVA-88-SSA and PVA-99-SSA. Soybean oil transesterification reaction rate fits pseudo-first order kinetics and methyl ester yield follows the order 90, 92 and 73% for PVA-88-SSA, PVA-99-SSA and PAAc-BDSA, respectively. Higher diffusion coefficients and sorption of methanol and glycerol by PAAc-BDSA membrane make it a candidate for application in membrane reactors for simultaneous biodiesel production and glycerol separation.

Keywords: Hydrophilicity; Transesterification; Catalytic membrane; Biodiesel; Diffusion coefficient; Soybean oil sorption (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148117309047
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:116:y:2018:i:pa:p:250-257

DOI: 10.1016/j.renene.2017.09.042

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().