Abstract:

This paper reviews the characteristics of adsorption desulfurization technology which has attracted more attention owing to its mild operating conditions, energy saving, unchanged fuel quality and low cost. The research progress and the selective removal mechanism of refractory thiophene sulfides in fuel by porous adsorption materials in recent years are reviewed, to deal with the issue of deep removal of thiophene and its derivatives. The research status of different porous adsorbents, such as molecular sieves, metal organic frameworks, porous carbon materials, and composite materials, is mainly analyzed. The adsorption mechanism and modification methods involving the advantages and disadvantages of various adsorption materials are discussed. This paper points out that molecular sieves are the most dominant adsorption materials due to their excellent thermal stability, high specific surface area, regular pore structure, low cost and ease of industrialization. Future research should focus on elucidating the adsorption mechanism, improving the convenience of synthesis, adsorption desulfurization performance, and regeneration ability, with a view to laying a foundation for the research and development of new high-efficiency, good selectivity, and easily regenerating adsorbents in a more comprehensive and systematic manner.

Key words: porous materials, fuel, desulfurization, adsorption mechanism, thiophene sulfide

摘要：

吸附脱硫技术具有操作条件温和、节能、不改变燃油品质和成本低等特点而备受关注。针对噻吩类难脱除硫化物的深度脱除和转化问题，综述了近年来应用多孔吸附材料选择性吸附超深度脱除燃油中噻吩类硫化物的作用机理及最新研究进展。重点分析了分子筛、金属有机骨架、多孔炭材料、复合材料等不同吸附剂的研究现状，并探讨了各种吸附材料的吸附机理、改性方式和优缺点。本文指出分子筛因优异的热稳定性、高比表面积、均一的孔道结构、低成本和易于工业化等特点，是目前最具优势的吸附剂材料。未来研究应着重阐明吸附机理、提高合成便捷性、脱硫性能以及再生能力，更全面系统的研究将为开发具有理想选择性和再生能力的高效吸附剂奠定基础。

关键词: 多孔材料, 燃油, 脱硫, 吸附机理, 噻吩类硫化物