New Sorbents for Ultrapurification of Transportation Fuels

用于超纯化运输燃料的新型吸附剂

• 批准号: 0455176
• 负责人: Ralph Yang
• 金额: --
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-01 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0455176&HistoricalAwards=false
• 关键词: New; Sorbents; Ultrapurification; Transportation; Fuels

AbstractProposal Title: New Sorbents for Ultrapurification of Transportation FuelsProposal Number: CTS-0455176Principal Investigator: Ralph YangInstitution: University of MichiganAdsorbents with p-complexation have been found to have superior selectivities and capacities for adsorbing sulfur- and nitrogen-containing molecules from transportation fuels (gasoline, diesel and jet fuels) at ambient temperature and pressure. The equilibrium amounts of the sorbents that the PI has developed are nearly proportional to the total sulfur concentration in the feed. In future work a significant challenge will be to develop high-capacity p-complexation sorbents for low-sulfur fuels. Two approaches, based on nanoscale considerations, will be followed in this project (1) to use a cation (or atom) that forms strong p-complexation bonds with thiophene and thiophenic molecules; and (2) to increase the exposed cation site density. Palladium-based sorbents will be studied because they are known to form the strongest p-complexation bonds. Monolayers of various salts supported on high-surface-area substrates will be studied. A research plan for denitrogenation in parallel with desulfurization will be carrier out. Ab initio molecular orbital theory calculations will be used as a guide for selecting the proper cations and anions. Molecular orbital calculations also provide a basic understanding of the bonding for adsorption. In terms of the broader impacts, the PI has had a long-standing record of involving minority and female students in his research programs as well as having active participation of undergraduate students. The proposed research may lead to a new technology for desulfurization and denitrogenation of liquid fuels that is fundamentally different from the traditional technology of hydrotreating. It may also solve the crucial problem for using liquid fuels as the power source for future hydrogen fuel cells.

摘要提案标题：运输燃料超净化用新型吸附剂提案编号：CTS-0455176主要研究者：杨立军研究单位： 已发现具有p-络合作用的吸附剂具有上级选择性和在环境温度和压力下从运输燃料（汽油、柴油和喷气燃料）中吸附含硫和含氮分子的能力。 PI开发的吸附剂的平衡量几乎与进料中的总硫浓度成比例。 在未来的工作中，一个重大的挑战将是开发低硫燃料的高容量磷络合吸附剂。基于纳米级考虑，本项目将采用两种方法：（1）使用与噻吩和噻吩分子形成强p-络合键的阳离子（或原子）;（2）增加暴露的阳离子位点密度。 将研究钯基吸附剂，因为已知它们形成最强的p-络合键。 将研究在高表面积基底上支撑的各种盐的单层。实施脱氮与脱硫并行的研究计划。 从头算分子轨道理论计算将被用来作为指导选择适当的阳离子和阴离子。分子轨道计算也提供了一个基本的理解吸附的键。 在更广泛的影响方面，PI有一个长期的记录，涉及少数民族和女学生在他的研究计划，以及有本科生的积极参与。这项研究可能会产生一种与传统加氢处理技术根本不同的液体燃料脱硫脱氮新技术。它也可能解决使用液体燃料作为未来氢燃料电池电源的关键问题。