低碳烷烃与烯烃吸附分离技术研究进展

摘要/Abstract

摘要： 乙烯、丙烯是重要的基础化工原料，在生产过程中，通常需要分离与它们碳数相同的烷烃，由于物化性质相近，分离难度大，目前主要采用高能耗的深冷分离方法。与之相比，以分子筛、金属-有机骨架材料（MOF）等作为吸附材料的吸附分离法具有成本低、能耗低的特点，有望成为替代高能耗的分离技术。从吸附机理、吸附材料、吸附工艺中的脱附技术等方面综述了近年来国内外吸附分离方法在低碳烷烃、烯烃分离领域的研究进展，提出了新型分子筛、MOF吸附材料及其脱附技术未来工业化应用的局限与挑战，并对优化方向进行了展望。

关键词: 低碳烯烃, 低碳烷烃, 吸附分离, 分子筛, MOF

Abstract: Ethylene and propylene are important basic chemical raw materials. In production process, the alkanes with the same carbon number as ethylene and propylene usually need to be removed. Their physical and chemical properties are similar, and the separation is difficult. At present, the main method is cryogenic separation with high energy consumption. In contrast, the adsorptive separation method using zeolites, MOFs and other adsorbent materials has the characteristics of low cost and low energy consumption. It is expected to become an alternative separation technology with low energy consumption. In this paper, the research progress of adsorptive separation methods for low-carbon alkanes and olefins at domestic and overseas in recent years was reviewed from the three aspects of adsorption mechanism, adsorbent materials,and desorption technology.The limitations and challenges of novel zeolites, MOFs adsorbent materials and their desorption technologies in the future were put forward, and the optimization direction was prospected.

Key words: low-carbon olefins, loe-carbon alkanes, adsorptive separation, zeolite, MOF

刘家硕李明丰杨平樊亚明. 低碳烷烃与烯烃吸附分离技术研究进展[J]. 石油炼制与化工, 2024, 55(10): 171-178.

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