Maximizing Propylene Separation from Propane by Extractive Distillation with Aqueous  N ‐Methyl‐2‐pyrrolidone as Separating Agent | Zendy

Cruz Valdez Jesús Alonso | Zendy; Avilés Martínez Adriana | Zendy; Vallejo Montesinos Javier | Zendy; Pérez Elías | Zendy; Patiño-Herrera Rosalba | Zendy

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Maximizing Propylene Separation from Propane by Extractive Distillation with Aqueous N ‐Methyl‐2‐pyrrolidone as Separating Agent

Author(s) -

Cruz Valdez Jesús Alonso,

Avilés Martínez Adriana,

Vallejo Montesinos Javier,

Pérez Elías,

Patiño-Herrera Rosalba

Publication year - 2021

Publication title -

chemical engineering and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.403

H-Index - 81

eISSN - 1521-4125

pISSN - 0930-7516

DOI - 10.1002/ceat.202100203

Subject(s) - propane , extractive distillation , distillation , aqueous solution , chemistry , selectivity , azeotropic distillation , chromatography , separation process , chemical engineering , organic chemistry , catalysis , engineering

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 % in total annual cost.

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