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Updated: May 5, 2026
Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
Published on: November 27, 2015
A Scalable Ultramicroporous Coordination Network for Ethylene Separation from the Quaternary Mixture
Jin-Bo Wang1, Tao Zhang1, Jian-Wei Cao1
1Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Xi'an Key Laboratory of Functional Organic Porous Materials, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
This study presents a new material for efficient ethylene purification, achieving high-purity ethylene from a complex gas mixture. The scalable synthesis offers a cost-effective solution for industrial ethylene separation.
Area of Science:
- Materials Science
- Chemical Engineering
- Separation Science
Background:
- Industrial ethylene purification is crucial but energy-intensive.
- Separating ethylene from acetylene, ethane, and carbon dioxide presents significant challenges.
Purpose of the Study:
- To develop a novel material for selective adsorptive separation of ethylene.
- To achieve high-purity ethylene production with low energy input.
Main Methods:
- Facile scaled-up synthesis of an ultramicroporous coordination network (Zn-CO3-datz).
- Gas adsorption site analysis using Gas Molecule Chromatography (GCMC) simulations.
- Dynamic breakthrough experiments for gas mixture separation.
Main Results:
- The synthesized Zn-CO3-datz material demonstrated selective adsorption capabilities.
- Efficient one-step production of polymer-grade ethylene (≥99.95%) from a C2H4/C2H2/C2H6/CO2 mixture.
- Achieved high ethylene productivity (0.12 mol kg⁻¹) at 298 K.
Conclusions:
- The developed material enables efficient and selective ethylene separation.
- Kilogram-scale synthesis with affordable ligands suggests strong potential for industrial applications.
- This method offers a low-energy pathway for ethylene purification.
