Comprehensive evaluation of an ionic liquid based deep purification process for NH-containing industrial gas.

Ammonia (NH) emission has caused serious environment issues and aroused worldwide concern. The emerging ionic liquid (IL) provides a greener way to efficiently capture NH. This paper provides rigorous process simulation, optimization and assessment for a novel NH deep purification process using IL.

Effective Absorption of Dichloromethane Using Carboxyl-Functionalized Ionic Liquids.

Dichloromethane (DCM) is recognized as a very harmful air pollutant because of its strong volatility and difficulty to degrade. Ionic liquids (ILs) are considered as potential solvents for absorbing DCM, while it is still a challenge to develop ILs with high absorption performances. In this study, four carboxyl-functionalized ILs-trioctylmethylammonium acetate [N][Ac], trioctylmethylammonium formate [N][FA], trioctylmethylammonium glycinate [N][Gly], and trihexyl(tetradecyl)phosphonium glycinate [P][Gly]-were synthesized for DCM capture.

Highly Selective Oxygen/Nitrogen Separation Membrane Engineered Using a Porphyrin-Based Oxygen Carrier.

Air separation is very important from the viewpoint of the economic and environmental advantages. In this work, defect-free facilitated transport membranes based on poly(amide-12-b-ethylene oxide) (Pebax-2533) and tetra(-methoxylphenyl)porphyrin cobalt chloride (T(-OCH)PPCoCl) were fabricated in systematically varied compositions for O/N separation. T(-OCH)PPCoCl was introduced as carriers that selectively and reversibly interacted with O and facilitated O transport in the membrane.