Cychosz Katie A, Wong-Foy Antek G, Matzger Adam J
Department of Chemistry and the Macromolecular Science and Engineering Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, USA.
J Am Chem Soc. 2009 Oct 14;131(40):14538-43. doi: 10.1021/ja906034k.
Microporous coordination polymers (MCPs) are demonstrated to be efficient adsorbents for the removal of the organosulfur compounds dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (DMDBT) from model diesel fuel and diesel fuel. For example, packed bed breakthrough experiments utilizing UMCM-150 find capacities of 25.1 g S/kg MCP for DBT and 24.3 g S/kg MCP for DMDBT from authentic diesel indicating that large amounts of fuel are desulfurized before the breakthrough point. Unlike activated carbons, where selectivity has been a problem, MCPs selectively adsorb the organosulfur compounds over other, similar components of diesel. Complete regeneration using toluene at modest temperatures is achieved. The attainment of high selectivities and capacities, particularly for the adsorption of the refractory compounds that are difficult to remove using current desulfurization techniques, in a reversible sorbent indicates that fuel desulfurization may be an important application for MCPs.
微孔配位聚合物（MCPs）被证明是从模拟柴油燃料和柴油中去除有机硫化合物二苯并噻吩（DBT）和4,6 - 二甲基二苯并噻吩（DMDBT）的高效吸附剂。例如，利用UMCM - 150进行的填充床穿透实验发现，从真实柴油中去除DBT时，MCP的硫容量为25.1 g S/kg MCP，去除DMDBT时为24.3 g S/kg MCP，这表明在穿透点之前大量燃料已被脱硫。与活性炭不同，选择性一直是活性炭存在的问题，而MCPs相对于柴油中其他类似成分能选择性地吸附有机硫化合物。在适度温度下用甲苯可实现完全再生。在可逆吸附剂中实现高选择性和高容量，特别是对于使用当前脱硫技术难以去除的难熔化合物的吸附，表明燃料脱硫可能是MCPs的一个重要应用。
