Catalytic Activation and Functionalisation of Light Alkanes: by P. L. Villa, S. Rapagnà (auth.), Eric G. Derouane, Jerzy

By P. L. Villa, S. Rapagnà (auth.), Eric G. Derouane, Jerzy Haber, Francisco Lemos, Fernando Ramôa Ribeiro, Michel Guisnet (eds.)

Light alkanes are usually immune to many varieties of activation. The horizontal technique of the current booklet covers homogeneous, heterogeneous and organic catalysis, therefore permitting readers to realize an wisdom of development and concepts in examine components various from their very own. The publication includes either normal chapters, giving an outline of the topic, and specialized contributions that care for the main points and cutting-edge. a consultant file can be incorporated which supplies a serious perception into present growth and discusses destiny customers and significant demanding situations.
Audience: beginners and senior researchers within the box of alkane activation. The combined theoretical and useful technique might be of curiosity to researchers and industrialists alike.

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9. Chaumette, P. , Revue de L 'Institut Francais du Petrole, Vol. 51, N° 5, October, 711-727. 10. , (1994) Prodotti e Processi dell 'Industria Chimica, Citta Studi Edizioni, Milano 11. Satterfield, C. N. , New York. 12. , Petzny, W. J. und Weitkamp, J (1994) Perspektiven der Petrochemie, DGMK- Tagungsbericht 9403, 51-85 13. Fox III, J. M. (1993) The Different Catalytic Routes for Methane Valorization: An Assessment of Processes for Liquid Fuels, Catal. Rev. Sci. , 35 (2), 169-212. 14. A. F. (1995) Homogeneous gas-phase partial oxidation of methane to methanol and formaldehyde Fuel processing Technology 42, 129-150.

The selectivity is enhanced by operating with limited benzene conversion (52-55%) and a high benzene/ethylene ratio. Higher ethylbenzenes are recycled to the reactor, where the transalkylation with benzene may occur. Other types of process, operating in the gas phase and employing acidic catalysts, are operated in the USA. 8 MPa, gives a conversion of 85% with selectivity in ethylbenzene of 98% C6H6 based, and 99% C2~ based. 30 7. Area of research for catalytic conversion of ethane to ethylene.

C2+ yields obtained for most of the catalytic systems studied fall in the range of 15-25%. It has been shown [5] that unpromoted or promoted Li/MgO catalysts give the best results in long-test runs, achieving a stable yield of 15% C2+ at 11 00°C, 1-2 bar pressure and using a 5-10 CHJ 0 2 ratio in the feed. However, from an economical point of view the key point will be to achieve very high selectivity at a reasonable conversion per pass. The results reported by Pereira et al. [6] using a new type of oxidative dehydrogenation catalyst may represent a step forward in this direction.

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