Ultramicroporous Hydrogen-Bonded Organic Framework Material with a Thermoregulatory Gating Effect for Record Propylene Separation

• DOI: 10.1021/jacs.2c06585
• Publication Date: 2022-09-07T10:58:25Z
• Authors: Yang Chen; Yisi Yang; Yi Wang; Qizhao Xiong; Jiangfeng Yang; Shengchang Xiang; Libo Li; Jinping Li; Zhangjing Zhang; Banglin Chen
• Keywords: Propane; Petrochemical; Air separation

Propane/propylene separation is one of the most challenging and energy-consuming but important tasks in petrochemical industry. Herein, a stable hydrogen-bonded organic framework (HOF-FJU-1) was tailor-made for highly efficient propylene from binary C3H6/C3H8 even seven component CH4/C2H4/C2H6/C3H6/C3H8/CO2/H2 mixtures. The temperature-controllable diffusion channels HOF-FJU-1 have enabled porous material to completely exclude propane reach high-performance purification under energy-efficient operation conditions. Single-crystal structural analysis revealed that well-matched pore aperture can exactly accommodate molecules via multiple intermolecular interactions, exhibiting very high propylene/propane selectivity 616 at 333 K. purity productivity are over 99.5% 30.2 L kg–1 (50/50) mixture Through follow-up column C3H6/C2H4 353 K, not only high-purity (99.5%) also ethylene (98.3%) be readily collected (31/10/25/10/10/1/13) cracking gas great potential industrial process has been further supported by stability this different environments straightforward processibility regeneration feasibility.