Mechanical vapor recompression coupling organic rankine cycle process for purification of crude biodiesel obtained by solid base-catalyzed transesterification

Dayu Sun, Lijing Gao, Ruiping Wei, Xiaomei Pan and Guomin Xiao

Energy, 2023, vol. 266, issue C

Abstract: In this study, an effective method of mechanical vapor recompression coupling Organic Rankine Cycle process is introduced to purify crude biodiesel obtained by solid base-catalyzed transesterification. Mechanical vapor recompression is used for recovering the waste heat of the methanol, while the Organic Rankine Cycle is applied for converting the waste heat of biodiesel into electric energy. Pinch technology is proposed to guide the coupling of mechanical vapor recompression and Organic Rankine Cycle process, the electric energy and waste heat generated by Organic Rankine Cycle are supplied to the mechanical vapor recompression system. Compared with conventional purification process, the total annual cost of proposed process decreases by 55.40% and the greenhouse gas emissions decrease by 76.31% for CO2, 76.41% for SO2, and 76.42% for NOx, respectively. In addition, the parameters of the proposed process are optimized to achieve a coefficient of performance of 16.03 for mechanical vapor recompression and 14.06% thermal efficiency for Organic Rankine Cycle.

Keywords: Biodiesel purification; Mechanical vapor recompression; Organic rankine cycle; Pinch analysis (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544222033850
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:energy:v:266:y:2023:i:c:s0360544222033850

DOI: 10.1016/j.energy.2022.126499

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

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