Probing the behaviour of lignin derived monomers in catalytic zeolite systems

探讨木质素衍生单体在催化沸石系统中的行为

• 批准号: 2436270
• 金额: --
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2436270
• 关键词: Probing; behaviour; lignin; derived; monomers

Context:The demand for sustainable chemicals and fuels has led to significant research into finding alternative feedstocks toreplace crude oil in existing petroleum refineries. Most chemicals and fuels come from the fluid catalytic cracking ofcrude oil via zeolitic catalysts. Biomass components and their derivatives have potential to generate these platformchemicals and fuels using the current petroleum refinery infrastructure with tailored zeolites. The main biomassreagent which will be investigated includes lignin due to its abundance and the lack of effective catalysts inconverting it after its depolymerisation.Aim:Improving zeolite catalysis of the conversion of depolymerised lignin products to useful platform chemicals and fuels.Objectives:Probing the behaviours of depolymerised lignin molecules such as diffusion, and rotation in zeolite pores and theiradsorption to acidic sites within the zeolite. This will be done mainly through molecular modelling and neutronscattering experiments at ISIS.Changing zeolite parameters and potentially reaction conditions to improve the desired yield and reducing cokedeposition through optimisation of lignin molecule diffusion and adsorption.Potential applications:Platform chemicals and fuel production replacing the current fluid catalytic cracking process which uses a crude oilfeedstock.Benefits of this research: Biomass is a renewable, available and releases less carbon dioxide compared to crude oilfeedstocks which are limited and contribute to carbon dioxide emission.Relevance to the research council:The research is hence relevant to the science and technology facilities council goals for the advancement ofeducation through research.Supervisor roles:Dr Alexander O'Malley is the main supervisor at the University of Bath who will have a big role in direction of theproject and help with molecular dynamic studies. The second supervisor Dr Asel Sartbaeva at the University of Bathhas expertise i n zeolites will have a small contribution to the project. The main supervisor affiliated with ISIS, part ofthe Science and Technology Facilities Council (STFC) is Dr Jeff Armstrong who is a neutron spectroscopy scientistwho will have a large role in helping me with the neutron spectroscopy techniques I will be using and any quantummechanical modelling that will be done.

背景：对可持续化学品和燃料的需求促使人们对寻找替代原料以取代现有炼油厂的原油进行了大量研究。大多数化学品和燃料来自通过沸石催化剂进行的原油流化催化裂化。生物质组分及其衍生物有潜力利用目前的石油精炼基础设施和定制沸石来生产这些平台化学品和燃料。主要的生物质试剂将被调查包括木质素由于其丰富和缺乏有效的催化剂在其解聚后将其转化为有用的平台化学品和燃料的沸石催化剂目的：提高解聚木质素产品的转化率目的：探讨解聚木质素分子在沸石孔中的行为，如扩散和旋转，以及它们在沸石内的酸性位点的吸附。这将主要通过分子模拟和中子散射实验在ISIS进行。改变沸石参数和潜在的反应条件，以提高所需的产量，并通过优化木质素分子扩散和吸附减少焦炭沉积。潜在的应用：平台化学品和燃料生产，取代目前使用原油原料的流化催化裂化工艺。与研究理事会的相关性：因此，这项研究与科学和技术设施理事会通过研究促进教育的目标有关。亚历山大奥马利博士是巴斯大学的主要导师，他将在该项目的指导和分子动力学研究方面发挥重要作用。第二个监督人Asel Sartbaeva博士在沸石方面具有专业知识，他将对该项目做出小小的贡献。隶属于科学技术设施理事会（STFC）的ISIS的主要主管是Jeff Armstrong博士，他是一名中子光谱学科学家，他将在帮助我使用中子光谱学技术和任何将要完成的量子力学建模方面发挥重要作用。