期刊
CATALYSIS COMMUNICATIONS
卷 8, 期 7, 页码 1070-1073出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2006.06.007
关键词
ethylenediamme; pyrazine; copper oxide/copper chromite catalysts
Ethylenediamine (ED) vapor on passing over a series of copper oxide/copper chromite catalysts in the temperature range of 340-440 degrees C yielded pyrazine with a very high selectivity (98-100%), the reaction proceeds by intermolecular deamination and cyclization of ED to form piperazine, which undergoes subsequent dehydrogenation to form pyrazine. Reaction parameters like effect of temperature, contact time, reactant feed ratio and time on stream were found to have profound effect on the reactant conversion as well as the product selectivity. (C) 2006 Elsevier B.V. All rights reserved.
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