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Updated: Jun 3, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
Tailoring Metal-Organic Frameworks for One-Step Separation of Alkane/Alkene/Alkyne Mixtures
Fu-An Guo1,2, Manglai Gao1, Hao Wang2
1State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, 18 Fuxue Road, Beijing, 102249, P. R. China.
Abstract:
The purification of polymer-grade olefins (>99.9 %), primarily C2 and C3, is a significant yet challenging process in the petrochemical industry. The conventional method for hydrocarbon separation typically involves heat-driven distillation. In contrast, adsorptive separation using porous solids presents a promising alternative, offering the potential for olefin purification under ambient conditions, thus providing substantial energy and environmental benefits. Particularly, one-step purification of alkenes through the selective adsorption of their corresponding alkanes and alkynes has gained attention as an effective approach. Metal-organic frameworks (MOFs), with their tunable pore structures, such as pore size, shape, and internal chemical environment, hold considerable potential for this process. This review discusses recent advancements in the development of MOFs for the one-step adsorptive purification of alkenes from ternary mixtures of alkanes, alkenes, and alkynes, with a focus on the rational design of pore structures to achieve the desired separation.
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