High Pressure Phase Behavior of CO2 + N-Vinyl Caprolactam and CO2 + N-Methyl Caprolactam Systems

Hwayong Kim; Won Bae; Soyoung Kwon

doi:10.11491/apcche.2004.0.986.0

Asian Pacific Confederation of Chemical Engineers congress program and abstracts

Session ID : 3P-11-009

DOI https://doi.org/10.11491/apcche.2004.0.986.0

Conference information

Host: The Society of Chemical Engineers, Japan

High Pressure Phase Behavior of CO₂ + N-Vinyl Caprolactam and CO₂ + N-Methyl Caprolactam Systems

Hwayong Kim, Won Bae, Soyoung Kwon

Author information

Keywords: N-vinyl caprolactam, N-methyl caprolactam, carbon dioxide, high pressure phase behavior

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

Pressure - composition isotherms for binary mixtures of carbon dioxide (CO₂) + N-vinyl caprolactam (NVCL) and carbon dioxide (CO₂) + N-methyl caprolactam (NMCL) were measured using a variable volume view cell at temperature from 323 K to 353 K and pressure up to 21 MPa. Phase behavior of these binary experimental data was modeled with Peng-Robinson equation of state with two adjustable parameters. Critical constants were estimated with Joback method and acentric factor was estimated with Lee-Kesler method. Good correlation results were obtained.

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