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\begin{document}

\title{Performance and mechanism of the separation of C8 \selectlanguage{greek}α-\selectlanguage{english}olefin from F-T
synthesis products using novel Ag-DES\selectlanguage{english}}



\author[1]{Hu Li}%
\author[2]{Zisheng Zhang}%
\author[3]{Guanlun Sun}%
\author[4]{Suli Liu}%
\author[4]{Liangcheng An}%
\author[1]{Xingang Li}%
\author[5]{Hong Li}%
\author[3]{Xin Gao}%
\affil[1]{Tianjin University}%
\affil[2]{University of Ottawa}%
\affil[3]{Tianjin university}%
\affil[4]{Affiliation not available}%
\affil[5]{National Engineering Research Ceter of Distillation Technology}%


\vspace{-1em}



  
  \date{May 08, 2024}


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\begin{abstract}
As an attractive alternative technology for the separation of long chain
olefin and paraffin, a novel silver-based deep eutectic solvent (Ag-DES)
was prepared and utilized for 1-octene/n-octane separation.
Comprehensive reactive extraction separation experiments were performed
to highlight the Ag-DES concentration and operating temperature
discriminations using compounds with different ratio of
1-octene/n-octane. The novel Ag-DES showed optimal separation
performance regarding 1-octene/n-octane and possessed the highest levels
separation selectivity in the range 3.75-16.74 with excellent
circulation stability in our best knowledge. Furthermore, FT-Raman
measurements and quantum chemistry calculation were conducted to
elucidate the interaction mechanism of Ag-DES in the separation of
1-octene and n-octane, which revealed that both chemical complexation
and strong physical attraction existed in the complex of Ag-DES with
1-octene rather than n-octane. This study lends important insight for
the development of Ag-DES reactive extraction separation process for the
energy-efficient long chain \selectlanguage{greek}α-\selectlanguage{english}olefin purification from F-T synthesis
products.%
\end{abstract}%



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