Synthesis of a metal-organic framework NU-2200 and its efficient performance on recovering low-content ethane from natural gas
LUN Tianjian
CHEN Yukang
LI Shangtai
YAN Jian
WANG Xun
Abstract：It is of great significance in industry and value in economy to use adsorption separation technology to recover low-concentration C2H6 component from natural gas.The development of porous adsorbents with high performance is one of the critical challenges for promoting this technology.In this work,the synthesis of a microporous metal-organic framework,NU-2200,and its separation performance for C2H6/CH4 were reported.Synthesized hydrothermally,NU-2200 showed high crystallinity and thermal stability,with intact skeleton up to 550℃.Due to the confinement effect in micropores,NU-2200 exhibited a strong adsorption affinity towards C2H6 molecules with high adsorption heat of 35 kJ·mol-1.At 298 K,the adsorption capacity ofC2H6reached 1.89 mmol·g-1 and the IAST selectivity of C2H6/CH4 binary mixture was calculated as 17,demonstrating that NU-2200 showed a good prospect for the application on recovering low-concentration C2H6 components in natural gas.
Keywords：natural gasmetal-organic frameworksethaneadsorption selectivitystability
Publication Date：2025-07-30
Online Publishing Date：2025-08-25(First online date of this platform, not the publication date of the document)
Pages：8( 52-59 )