New Sorbents for Separation and Purification by Weak Chemical Bonds

该补助金是通过化学和运输系统部门的界面，运输和分离计划的分离和纯化计划子元素授予的。 首席研究员是密歇根大学的Ralph Yang博士。 拟议的研究涉及三种基本类型的分离问题的新型吸附剂的研究。 特别是，重点是那些涉及烯烃链烷烃系统。 这些系统中分离的基础被认为主要是由于烯烃物质和吸附剂之间的优先π键合，这在低分子量石蜡物质中不存在。 PI的研究建议继续制备用于这些分离的银和铜基吸附剂。此外，PI还建议研究二恶英吸附（使用二氧化硅载体上的银盐）和热燃烧气体中的NO吸附。 实验工作在每一个战神进行了描述。 因此，一个initio molcularorbital计算计划，试图提供一个更详细的了解的阳离子-山梨酸盐结合步骤，这是一个重要组成部分的吸附机制，在每个这些系统。

This grant is awarded through the Separations and Purification program sub-element of the Interfacial,Transport and Separations program of the Chemical and Transport Systems Division. The principal investigator is Dr. Ralph Yang at the University of Michigan. The proposed research concerns the study of novel adsorbents for three basic types of separations problems. In particular, emphasis is given to those involving olefeneparaffin systems. The basic for the separation in these systems is thought to be largely due to the preferential pi-bonding between the olefenic species and the adsorbent, which is not present with a low molecularweight paraffin species. The PI's research proposes to continue with the preparation of both silver and copper-based sorbents for these separations. In addition, the PI is proposing the study of both dioxin adsorption, using silver salts supported on silcia supports, and NO adsorption from hot combustion gases. Experimental work is described in each of these ares. Futhermore, an initio molcularorbital calculations are planned in an attempt to provide a more detailed understanding of the catiion-sorbate binding step that is an essential part of the adsorption mechanism in each of these systems.