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Room temperature ionic liquids for propyne-propylene separations: Solubility behaviors and selectivity investigation
Palgunadi J., Indarto A.b
a Department of Chemistry and Research Institute of Basic Sciences, Kyung Hee University, South Korea
b Department of Chemical Engineering, Institut Teknologi Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Room temperature ionic liquids (RTILs) have been discovered as very promising media for acetylene-ethylene separation. In this work, propyne and propylene solubility behaviors in dialkylimidazolium-based RTILs bearing various kinds of anions have been investigated for the feasible extraction process of propyne from propylene mixture. Solubility-molar volume relationship supported by thermodynamic analysis indicated that physical absorption mechanism plays dominantly in determining the propylene solubility. Meanwhile, unlike the acetylene solubility, which is controlled almost exclusively by hydrogen bonding interaction (chemical interaction) between the anion of RTIL and the solute, the solubility of propyne is a result from a tradeoff between chemical and physical interactions. Generally speaking, the trend of the ideal absorption selectivity for propyne over propylene is close to the acetylene-ethylene case where the higher the hydrogen bond basicity and the smaller the molar volume of RTIL results in the greater the selectivity for propyne. © 2011 Elsevier Ltd.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Chemical interactions,Extraction process,Hydrogen bonding interactions,Hydrogen-bond basicity,Physical absorption,Physical interactions,Propynes,Room temperature ionic liquids,Selectivity investigation,Solubility behavior,Thermo dynamic analysis[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Propylene,Propyne,Selectivity,Separation,Solubility,Thermochemistry[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.ces.2011.08.030[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]