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Cobalt-based metal–organic framework for desulfurization of thiophene as a model fuel
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2024-02-27 , DOI: 10.1039/d3se01140b M. Christina Nilavu 1 , T. Leelasree 1 , Himanshu Aggarwal 1 , N. Rajesh 1
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2024-02-27 , DOI: 10.1039/d3se01140b M. Christina Nilavu 1 , T. Leelasree 1 , Himanshu Aggarwal 1 , N. Rajesh 1
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Persistent economic growth results in rising energy use, which in turn creates new environmental burdens and health risks for people due to the release of toxic gases from the combustion of fuel with sulfur-containing compounds. A cobalt-based MOF (BITSH-1) was investigated for the adsorptive desulfurization of thiophene in iso-octane as a model fuel. BITSH-1 showed a very high thiophene adsorption capacity of 95.38 mg g−1. Interestingly, BITSH-1 with a high surface area of 349.07 m2 g−1 achieves high adsorption efficiency at room temperature with substantially less time consumption without fuel oxidation or additional functionalization of the MOF, making it more feasible for an adsorptive desulfurization process. The recyclability of the MOF material showed good adsorption efficiency of thiophene for up to four cycles. The mechanistic features and possible interactions are discussed by modelling the thiophene molecule in the MOF with the help of SCXRD studies. Additionally, the mechanistic aspects of thiophene adsorption were corroborated using isotherms, kinetics, and thermodynamics, which ascertained that the reaction follows pseudo-order kinetics with spontaneity and feasibility. The overall process was found to be an exothermic reaction. Hence, the proposed adsorbent BITSH-1 could be a promising candidate for exclusive thiophenic separation from oil and could be promoted for the desulfurization of thiophenic model fuel.
中文翻译：
用于噻吩脱硫模型燃料的钴基金属有机骨架
持续的经济增长导致能源消耗不断增加，而含硫化合物燃料燃烧时会释放出有毒气体，从而给人们带来新的环境负担和健康风险。研究了钴基 MOF (BITSH-1) 在作为模型燃料的异辛烷中对噻吩的吸附脱硫。BITSH-1表现出非常高的噻吩吸附能力，为95.38 mg g -1。有趣的是，BITSH-1具有349.07 m 2 g -1的高表面积，可以在室温下实现高吸附效率，并且无需燃料氧化或MOF的额外功能化即可显着减少时间消耗，使其对于吸附脱硫过程更加可行。MOF材料的可回收性显示出良好的噻吩吸附效率，循环次数高达四次。借助 SCXRD 研究对 MOF 中的噻吩分子进行建模，讨论了机械特征和可能的相互作用。此外，利用等温线、动力学和热力学证实了噻吩吸附的机理，确定该反应遵循伪级动力学，具有自发性和可行性。发现整个过程是放热反应。因此，所提出的吸附剂BITSH-1可能是从石油中单独噻吩分离的有前途的候选者，并且可以推广用于噻吩模型燃料的脱硫。
更新日期：2024-02-27
中文翻译：
用于噻吩脱硫模型燃料的钴基金属有机骨架
持续的经济增长导致能源消耗不断增加，而含硫化合物燃料燃烧时会释放出有毒气体，从而给人们带来新的环境负担和健康风险。研究了钴基 MOF (BITSH-1) 在作为模型燃料的异辛烷中对噻吩的吸附脱硫。BITSH-1表现出非常高的噻吩吸附能力，为95.38 mg g -1。有趣的是，BITSH-1具有349.07 m 2 g -1的高表面积，可以在室温下实现高吸附效率，并且无需燃料氧化或MOF的额外功能化即可显着减少时间消耗，使其对于吸附脱硫过程更加可行。MOF材料的可回收性显示出良好的噻吩吸附效率，循环次数高达四次。借助 SCXRD 研究对 MOF 中的噻吩分子进行建模，讨论了机械特征和可能的相互作用。此外，利用等温线、动力学和热力学证实了噻吩吸附的机理，确定该反应遵循伪级动力学，具有自发性和可行性。发现整个过程是放热反应。因此，所提出的吸附剂BITSH-1可能是从石油中单独噻吩分离的有前途的候选者，并且可以推广用于噻吩模型燃料的脱硫。
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