Wang Hao, Dong Xinglong, Ding Jiayu, Wang Kaifang, Yu Liang, Zhang Shang, Han Yu, Gong Qihan, Ma An, Li Jing
Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd., Nanshan District, Shenzhen, Guangdong, 518055, P. R. China.
Advanced Membranes and Porous Materials Center Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
Chemistry. 2021 Aug 16;27(46):11795-11798. doi: 10.1002/chem.202101871. Epub 2021 Jul 16.
The separation of alkanes, particularly monobranched and dibranched isomers, is of paramount importance in the petrochemical industry for optimizing the feedstock of ethylene production as well as for upgrading the octane number of gasoline. Here, we report the full separation of linear/monobranched alkanes from their dibranched isomers by a robust and easily scalable metal-organic framework material, Co (HCOO) . The compound completely excludes dibranched alkanes but adsorbs their linear and monobranched isomers, as evidenced by single-component and multicomponent adsorption measurements. More importantly, the material exhibits excellent performance in separating naphtha and is capable of providing high quality feedstock for the production of ethylene and gasoline components with high octane number, making it a promising candidate for naphtha separation in petrochemical industry.
烷烃的分离，尤其是单支链和双支链异构体的分离，在石化行业中对于优化乙烯生产的原料以及提高汽油辛烷值至关重要。在此，我们报道了一种坚固且易于扩展的金属有机骨架材料Co(HCOO)，可将直链/单支链烷烃与它们的双支链异构体完全分离。单组分和多组分吸附测量表明，该化合物完全排斥双支链烷烃，但吸附其直链和单支链异构体。更重要的是，该材料在石脑油分离方面表现出优异的性能，能够为生产乙烯和高辛烷值汽油组分提供高质量的原料，使其成为石化行业石脑油分离的有前景的候选材料。
