首页|A Scalable Pillar Layered Metal-Organic Framework for Natural Gas Purification

A Scalable Pillar Layered Metal-Organic Framework for Natural Gas Purification

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One-step harvest of high-purity methane(CH4)from ternary propane/ethane/methane(C3H8/C2H6/CH4)mixtures remains a desirable yet challenging goal for natural gas purification.However,adsorbents either suffer from high capacity and selectivity,or are caught in a dilemma of scalable synthesis.Herein,we demonstrate a scalable pillar layered metal-organic framework Ni-MOF for highly efficient one-step CH4 purification.Ni-MOF exhibits high C2H6 and C3H8 uptakes of 83.3 and 86.1 cm3/g at 298 K and 100 kPa and remarkable C2H6/CH4(50/50,volume ratio,21.5)and C3H8/CH4(50/50,volume ratio,212.0)selectivities.Notably,high C2H6(42.2 cm3/g at 10 kPa)and C3H8(64.7 cm3/g at 5 kPa)capacities in the low-pressure region at 298 K were realized on Ni-MOF,suggesting the strong affinities of Ni-MOF towards C2H6 and C3H8.Furthermore,the dynamic breakthrough experiments revealed that purifying CH4 from natural gas in one-step can be achieved in Ni-MOF with high-purity(＞99.8％)and productivity(346.0 cm3/g).Most significantly,the production of Ni-MOF can be scalably synthesized at room temperature,rendering it promising potential for industrial application.The combined advantages of exceptional separation performance,scalability,and cycle stability of Ni-MOF pave the way for one-step CH4 purification from natural gas.

Metal-organic frameworkAdsorption and separationNatural gas purificationScale-up synthesis

LU Nan、LAN Lan、GAO Qiang、LI Na、BU Xian-He

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School of Materials Science and Engineering,Nankai University,Tianjin 300350,P.R.China

School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,P.R.China

State Key Laboratory of Elemento-Organic Chemistry,College of Chemistry,Nankai University,Tianjin 300071,P.R.China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaProgramme of Introducing Talents of Discipline to Universities,China

220350032237113922305130B18030

2024

10.1007/s40242-024-4125-2

高等学校化学研究(英文版)
吉林大学

高等学校化学研究(英文版)

CSTPCD
影响因子：0.871
ISSN：1005-9040
年,卷(期)：2024.40(4)