An extended energy saving method for modification of MTP process heat exchanger network

Farid Sadeghian Jahromi and Masoud Beheshti

Energy, 2017, vol. 140, issue P1, 1059-1073

Abstract: Pinch Technology has been widely adopted and considered to be one of the most successful techniques in process energy integration. But according to limitation and defect of pinch analysis in heat exchanger retrofit, a new conceptual diagram is proposed for super-ambient and sub-ambient temperature process. This diagram is based on heat flow rate as a function of temperature. By using this diagram, it can be achieve to the concepts such as: 1- retrofit of the HEN for energy saving, 2- the best location of hot and cold utility, 3- The actual amount of required hot and cold utility. Composite curve, the grand composite curve and the energy transfer diagram have been constructed for analysis of the HEN of a methanol to propylene plant. In this novel design it was attempted to improve the HEN’s efficiency of MTP process and get the maximum economic return. Annual profit percentage reach to 13.2% by improving HEN via bridge method. Results showed that utilities consumption have been decreased significantly in the novel design by bridge method (about 9.3%) to pinch analysis (5.0%). Finally, it can be said, bridge analysis provides more detail about heat savings modifications, than traditional pinch analysis.

Keywords: MTP process; Energy savings; Heat exchanger network; Bridge method; Retrofit (search for similar items in EconPapers)
Date: 2017
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/S0360544217315530
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:140:y:2017:i:p1:p:1059-1073

DOI: 10.1016/j.energy.2017.09.032

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 ().