Henry's Law Constants for Methanol and α-Pinene in Ionic Liquids
Keywords:Ionic liquid, RTIL, pollution control, absorber, Henry's Law constant
AbstractThe capture of organic compounds from the exhaust gases of dryers and presses in the wood products industry is difficult due to low concentrations and high gas volumes. The possibility of using room temperature ionic liquids as absorbents was investigated by determining the Henry's Law constants for methanol and α-pinene in four imidazolium-based and eight phosphonium-based ionic liquids. The stability of the imidazolium-based ionic liquids proved problematic. The constants for the phosphoniumbased ionic liquids were low, indicating that the ionic liquids tested might be very good absorbents.
Blanchard, L. A., and J. F. Brennecke. 2001. Recovery of organic products from ionic liquids using supercritical carbon dioxide. Ind. Eng. Chem. Res.40(1):287-292.nBlanchard, L. A., D. Hancu, E. J. Beckman, and J. F. Brennecke. 1999. Green processing using ionic liquids and CO2. Nature (London)399(6731):28-29.nBranco, L. C., and C. A. M. Afonso. 2001. Ionic liquids as recyclable reaction media for the tetrahydropyranylation of alcohols. Tetrahedron57(20):4405-4410.nCarmichael, A. J., M. J. Earle, J. D. Holbrey, P. B. McCormac, and K. R. Seddon. 1999. The Heck reaction in ionic liquids: A multiphasic catalyst system. Org. Lett.1(7):997-1000.nDewulf, J., H. Van Langenhove, and P. Everaert. 1999. J. Chromatograph A.830:353-363.nFederal Register. July 30, 2003. National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products, Volume 70, Number 145, pp. 44011-44036.nHuddleston, J. G., H. D. Willauer, R. P. Swatloski, A. E. Visser, and R. D. Rogers. 1998. Room temperature ionic liquids as novel media for "clean" liquid-liquid extraction. Chem. Commun.:1765-1766.nKim, K. S., S. Choi, D. Demberelnyamba, H. Lee, J. Oh, B. B. Lee, and S. J. Mun. 2004. Ionic liquids based on N-alkyl-N-methylmorpholinium salts as potential electrolytes. Chem. Commun. 828-829.nLi, X., Y. Geng, J. Simonsen, and K. Li. 2004. Application of ionic liquids for electrostatic control in wood. Holzforschung58(3):280-285.nPernak, J., A. Czepukowicz, and R. Pozniak. 2001. New ionic liquids and their antielectrostatic properties. Ind. Eng. Chem. Res.40:2379-2383.nPoddar, T. K. and K. K Sirkar. 1996. Henry's Law constant for selected organic compounds in high-boiling liquids. J. Chem. Eng. Data.41(6):1329-1332.nRathbun, R. E. 1998. Transport, behavior, and fate of volatile organic compounds in streams. U.S. Geological Survey, Professional Paper 1589, 151 pp.nRogers, R. D., and K. R. Seddon (ed.). 2003. Ionic liquids as green solvents: Progress and prospects, ACS symposium symposium series 856. American Chemical Society, Washington, DC.nSAS Institute 1988. SAS/STAT Users Guide. SAS Institute, Cary, NC. 1028 pp.nShelton, R. 2001. Catalytic reactions in ionic liquids. Chem. Commun.:2399-2407.nSwatloski, R. P., S. K. Spear, J. D. Holbrey, and R. D. Rogers. 2002. Dissolution of cellulose with ionic liquids. J. Am. Chem. Soc.124(18):4974-4975.n
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