U.S.-Argentina Cooperative Research: Catalytic Activation of Lower Alkanes: Dehydrogenation and Alkylation Reactions

这项美国-阿根廷合作科学奖支持与博士访问有关的差旅费和一些消耗性研究用品。D. Resasco，俄克拉何马大学，诺曼，OK和G. Larsen，内布拉斯加州大学，林肯，NE到阿根廷。访问的目的是研究低烷烃活化生产烯烃、含氧化合物和高级碳氢化合物。阿根廷合作公司。是国立滨海大学INCAPE的J. Parera博士。南巴伊亚布兰卡大学的A. J. Rouco博士也将参与这项研究。该项目由两部分组成。第一个将处理低烷烃在铂基催化剂上的脱氢反应。本研究将试图证明在一定的反应条件下，促进剂的加入改变了H的表面浓度。研究了改性对烷烃脱氢催化剂活性和稳定性的影响，并对催化材料进行了全面表征。该项目的第二部分将研究固体超强酸催化剂对烷烃的活化作用。研究了甲烷-烯烃烷基化、异丁烯-异丁烯烷基化和正丁烷异构化等反应。研究了锰和铁作为促进剂对硫酸氧化锆催化活性的影响。这项研究将试图确定这种促进是否会产生能够在低温下转化甲烷的高活性酸性物质。研究了铂和锡作为促进剂对提高催化剂寿命的作用。该研究将集中于阐明失活机制，并确定Pt和Sn的存在是否会改变焦炭形成的性质和速度。这种促进可能导致催化剂具有非常高的活性，因此能够在相对较低的温度下工作，在这种温度下平衡转化率很高。

This U. S.-Argentina Cooperative Science Award supports travel expenses and some expendable research supplies related to the visits of Drs. D. Resasco, Univ. of Oklahoma, Norman, OK and G. Larsen, U. of Nebraska, Lincoln, NE to Argentina. The purpose of the visits is to perform research on the activation of lower alkanes to produce olefins, oxygenates and higher hydrocarbons. The Argentine co-P.I. is Dr. J. Parera, of INCAPE, Universidad Nacional del Litoral . Dr. A. J. Rouco, Universidad del Sur, Bahia Blanca, will also be involved in the research. The project consists of two parts. The first will deal with the dehydrogenation of lower alkanes over Pt- based catalysts. The research will attempt to demonstrate that the addition of promoters alters the surface concentration of H under certain reaction conditions. The effect of the alteration on the activation and stability of alkane dehydrogenation catalysts will be investigated, and the catalytic materials will be fully characterized. The second part of the project will examine the activation of alkanes over solid superacid catalysts. Several reactions, such as methane-olefin alkylation isobutene-isobutylene alkylation and n-butane isomerization will be studied. The effects of Mn and Fe as promoters for the catalytic activity of sulfated zirconia will be investigated. The research will attempt to determine whether such promotion results in highly active acid materials able to convert methane at low temperatures. The effects of Pt and Sn as promoters for improving the life of the catalyst will also be investigated. The research will focus on elucidating deactivation mechanisms, and on determining whether the presence of Pt and Sn modifies the nature and rate of coke formation. Such promotion may result in a catalyst with a very high activity and, in consequence, able to operate at relatively low temperatures at which equilibrium conversions are high.