Towards a molecular understanding of deactivation issues in methane reforming catalysts

从分子角度理解甲烷重整催化剂失活问题

• 批准号: EP/E028861/1
• 负责人: David Lennon
• 金额: $ 56.65万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE028861%2F1
• 关键词: Towards; molecular; understanding; deactivation; issues

This research proposal brings together a grouping of specialists in surface chemistry, heterogeneous catalysis, solid state chemistry, infrared spectroscopy, Raman spectroscopy and inelastic neutron scattering spectroscopy to identify the critical factors responsible for maintaining hydrogen yields in methane reforming catalysts. Ormerod has already prepared, and partially characterised, a number of methane reforming catalysts that display a wide range of performance, in terms of hydrogen selectivity and operational lifetime. Whereas the standard formulations display the expected catalyst deactivation characteristics, some of the modified catalysts exhibit excellent hydrogen selectivity that can be maintained over extended periods of time, i.e. minimal deactivation is observed. A workplan is presented whereby the research team will develop a mechanistic understanding of why the 'good' catalysts favour high hydrogen selectivity and avoid the carbon laydown processes, that lead to the formation of surface oligermic species and, ultimately, catalyst deactivation. This multi-disciplinary and multi-institutional research proposal has direct connections to energy requirements of the UK chemical industry and, moreover, targets key areas of the science base as highlighted in the recent Whiteside's report and the EPSRC's Research Priorities and Opportunities document.

这项研究计划汇集了一组专家在表面化学，多相催化，固态化学，红外光谱，拉曼光谱和非弹性中子散射光谱，以确定关键因素负责保持甲烷重整催化剂中的氢气产量。Ormerod已经制备并部分表征了许多甲烷重整催化剂，这些催化剂在氢气选择性和操作寿命方面表现出广泛的性能。尽管标准制剂显示出预期的催化剂失活特性，但一些改性催化剂显示出优异的氢气选择性，其可以在延长的时间段内保持，即观察到最小的失活。一个工作计划，研究小组将制定一个机械的理解，为什么“好”的催化剂有利于高氢选择性，避免碳沉积过程，导致形成表面寡酸物种，并最终，催化剂失活。这项多学科和多机构的研究提案与英国化学工业的能源需求有直接联系，此外，还针对最近Whiteside的报告和EPSRC的研究重点和机会文件中强调的科学基础的关键领域。

项目成果

The application of inelastic neutron scattering to investigate CO hydrogenation over an iron Fischer-Tropsch synthesis catalyst

• DOI: 10.1016/j.jcat.2014.02.004
• 发表时间: 2014-04-01
• 期刊: JOURNAL OF CATALYSIS
• 影响因子: 7.3
• 作者: Hamilton, Neil G.;Warringham, Robbie;Lennon, David
• 通讯作者: Lennon, David

The Preparation of a Residue-free, Alumina-supported Gold Catalyst by Decomposition of an Azido-Gold(III) Complex and an Evaluation of the Effectiveness of the Catalyst for the Hydrogenation of Propyne

叠氮金(III)络合物分解制备无残留的氧化铝负载金催化剂及丙炔加氢催化剂的效果评价

• DOI: 10.1002/zaac.201400506
• 发表时间: 2015
• 期刊: Zeitschrift für anorganische und allgemeine Chemie
• 作者: Lopez-Sanchez J

Vibrational Analysis of an Industrial Fe-Based Fischer-Tropsch Catalyst Employing Inelastic Neutron Scattering

采用非弹性中子散射对工业铁基费托催化剂进行振动分析

• DOI: 10.1002/ange.201210179
• 发表时间: 2013
• 期刊: Angewandte Chemie
• 作者: Hamilton N

Carbon deposition, sulphur poisoning and characterisation of hydrocarbonaceous overlayers formed during reforming

重整过程中形成的烃质覆盖层的碳沉积、硫中毒和表征

• 作者: Mark Ormerod (Author)

Inelastic neutron scattering and isotopic substitution experiments and their application in examining the CO(2) reforming of methane over alumina-supported catalysts

非弹性中子散射和同位素取代实验及其在氧化铝负载催化剂上甲烷 CO(2) 重整中的应用

• 作者: David Lennon (Author)