Effect of methanol on the gas-phase reaction of trifluoromethane with methane
Han, W., Kennedy, E.M., Mackie, J.C. and Dlugogorski, B.Z. (2010) Effect of methanol on the gas-phase reaction of trifluoromethane with methane. Industrial & Engineering Chemistry Research, 49 (18). pp. 8406-8414.
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The reaction of CHF 3 with CH 4 in the presence of small amounts of CH 3OH (5% of CHF 3 concentration) was investigated in a tubular alumina reactor at temperatures between 900 K and 1150 K. The presence of CH 3OH has a significant influence on both the conversion and selectivity of the reaction. Increasing the CH 3OH concentration enhances the conversion of CHF 3 by a factor of 1-4 times at temperatures between 873 K and 1123 K, although the rate of formation of the major products (CH 2=CF 2) does not increase. A reaction scheme, based on NIST HFC and GRI-Mech mechanisms, is developed to model the reactions. Satisfactory agreement between experimental results and predictions is achieved for the conversion of reactants and formation of products. Based on experimental measurements and modeling results, a detailed reaction mechanism is proposed, and insight into how CH 3OH influences the reaction of CHF 3 with CH 4 is presented.
|Publication Type:||Journal Article|
|Publisher:||American Chemical Society|
|Copyright:||© 2010 American Chemical Society.|
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