Texture/phase evolution during plasma treatment of microwave-combustion synthesized KOH/Ca12Al14O33-C nanocatalyst for reusability enhancement in conversion of canola oil to biodiesel

Hamed Nayebzadeh, Mohammad Haghighi, Naser Saghatoleslami, Shervin Alaei and Sina Yousefi

Renewable Energy, 2019, vol. 139, issue C, 28-39

Abstract: Glow-discharge plasma was utilized for treating the KOH/carbonated calcium aluminate synthesized by MCM. Treated and untreated nanocatalysts were characterized by XRD, FESEM, EDX-dot mapping, TEM, TGA/DSC, FTIR and N2 adsorption-desorption measurements. Moreover, some analyses were performed on the catalyst after assessment its catalytic activity in the microwave-assisted transesterification reaction. Treated and untreated nanocatalyst presented Ca12Al14O33 structure as support which was covered by carbon groups. The plasma treating was significantly effect on the potassium component as surface active phase and interaction of potassium and calcium with aluminium cations such that no agglomeration of active phases with the highest crystallinity was observed. The plasma treated sample showed better textural properties than untreated nanocatalyst. The main advantage of plasma was clearly observed on the stability of the nanocatalyst that the reduction the activity of untreated sample was more than two times of those for treated nanocatalyst. The plasma treated KOH/Ca12Al14O33-C exhibited no deformation of support structure and leaching of calcium component in the reaction medium against of untreated sample. Therefore, the plasma–microwave hybrid synthesis method provides an excellent rout for preparation of surface modified nanocatalysts for biodiesel production with the highest activity and stability to decrease the production cost.

Keywords: KOH/Ca12Al14O33; Microwave; Combustion synthesis; Plasma; Transesterification; Biodiesel (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119301302
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:139:y:2019:i:c:p:28-39

DOI: 10.1016/j.renene.2019.01.122

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 ().