abstract

• The separation of polymer-grade propylene from a propylene-propane mixture was performed by an extractive distillation (ED) process in the steady state, and was developed on the Aspen Plus V9 simulator, by using an extractive column and a recovery column. To increase the volatility and relative selectivity of propylene, aqueous N-methyl-2-pyrrolidone (NMP) was used as extracting agent. By using an ED process and aqueous NMP, compared with the high-pressure binary distillation process, a reduction in energy consumption was obtained, with a saving of 52 %25 in total annual cost. © 2021 Wiley-VCH GmbH

authors

• Patiño-Herrera R.
• Pérez E.
• Vallejo-Montesinos J.

publication date

• 2021-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT: 955088  Grant

published in

• Chemical Engineering and Technology  Journal

keywords

• Energy saving; Extractive distillation; N-Methyl-2-pyrrolidone; Propane-propylene separation; Total annual cost Computer software; Distillation; Distillation columns; Energy utilization; Propane; Propylene; Binary distillation; Extracting agents; Extractive distillation; N-methyl-2-pyrrolidone; Propane mixtures; Reduction in energy consumption; Separating agents; Separation of polymers; Distilleries

Digital Object Identifier (DOI)

• 10.1002/ceat.202100203

PubMed ID

start page

• 1726

end page

• 1736

volume

• 44

issue

• 9