Separation of light olefins from their respective paraffins by adsorption is an attractive strategy due to the sustainable and inexpensive nature of adsorption process. It is well understood that the presence of Ag(I) in the adsorbent favors the adsorption of ethylene and propylene (olefins) over ethane and propane (paraffins) owing to the $\pi$ -$\pi$ complexation between Ag(I) and $\pi$ bond present in olefins. In this research, Ag(I) doped microporous carbons were synthesized from furfuryl alcohol as carbon source. It is also shown that prior sulfurization of the carbon greatly favored Ag(I) content owing to the affinity of sulfur to Ag(I). All the carbons were successfully characterized with pore textural properties, SEM-EDX imaging and x-ray photoelectron spectroscopy (XPS). Only the carbon with highest Ag(I) content (2.5 at.%) and BET specific area (1193 m²/g) favored the adsorption of ethylene and propylene over ethane and propane, respectively. IAST-based selectivity values were also employed to calculate binary adsorption isotherms for ethane-ethylene and propane-propylene mixtures. The IAST-based selectivity values of ethylene/ethane and propylene/propane were in the range of 4.5 to 2.5 and 5 to 2.4, respectively. Finally, column breakthrough and pulse chromatographic peaks were simulated to confirm the separation of paraffin-olefin pairs on thus carbon. To the best of our knowledge, it is the first report of the separation of light paraffin and olefins in a carbon-based adsorbent and by harnessing the $\pi$ -$\pi$ complexation.

通过吸附将轻质烯烃与它们各自的链烷烃分离是一种有吸引力的策略，因为吸附过程具有可持续且廉价的性质。众所周知，吸附剂中Ag（I）的存在有利于乙烯和丙烯（烯烃）比乙烷和丙烷（链烷烃）的吸附，因为$\pi$ --$\pi$ Ag（I）与 $\pi$存在于烯烃中的键。在这项研究中，以糠醇为碳源合成了Ag（I）掺杂的微孔碳。还表明，由于硫对Ag（I）的亲和力，碳的预先硫化极大地有利于Ag（I）的含量。所有碳都已成功地通过孔隙结构特性，SEM-EDX成像和X射线光电子能谱（XPS）进行了表征。仅具有最高的Ag（I）含量（2.5 at。％）和BET比表面积（1193 m ²）的碳/ g）分别促进了乙烯和丙烯对乙烷和丙烷的吸附。还使用基于IAST的选择性值来计算乙烷-乙烯和丙烷-丙烯混合物的二元吸附等温线。基于IAST的乙烯/乙烷和丙烯/丙烷的选择性值分别在4.5至2.5和5至2.4的范围内。最后，模拟了色谱柱穿透峰和脉冲色谱峰，以确认碳上石蜡-烯烃对的分离。据我们所知，这是关于在碳基吸附剂中分离轻质石蜡和烯烃并利用其进行分离的第一份报告。$\pi$ --$\pi$ 复杂化。