Reaction of sulfur dioxide SO2 with reversible ionic liquids RevILs for carbon dioxide CO2 captureReport as inadecuate


Reaction of sulfur dioxide SO2 with reversible ionic liquids RevILs for carbon dioxide CO2 capture


Reaction of sulfur dioxide SO2 with reversible ionic liquids RevILs for carbon dioxide CO2 capture - Download this document for free, or read online. Document in PDF available to download.

Silylated amines, also known as reversible ionic liquids RevILs, have been designed and structurally modified by our group for potential use as solvents for CO₂ capture from flue gas. An ideal CO₂ capture ionic liquid should be able to selectively and reversibly capture CO₂ and have tolerance for other components in flue gas, including SO₂, NO₂, and O₂. In this project, we study the reactivity, selectivity, uptake capacity, and reversibility of RevILs in the presence of pure SO₂ and mixed gas streams tosimulate flue gas compositions. Tripropylsilylamine TPSA, a candidate CO₂ capture RevIL, reacts with pure SO₂ to form an ionic liquid consisting of an ammonium group and a salfamate group, supported by IR and NMR results. The resulting IL with pure SO₂ partially reverses when heated to temperatures of upto 500 C in the TGA. TGA analysis of the ionic liquid formed from a 4 vol% SO₂ in CO₂ mixture indicates a possible reversal temperature in the 86-163 C range.



Georgia Tech Theses and Dissertations - School of Chemical and Biomolecular Engineering Theses and Dissertations -



Author: Momin, Farhana - -

Source: https://smartech.gatech.edu/







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