低碳化学与化工2025，Vol.50Issue(7)：67-71,108,6.DOI:10.12434/j.issn.2097-2547.20240353
T沸石的合成及其CH4/N2吸附分离性能研究
Study on synthesis of T-zeolite and its CH4/N2 adsorption and separation performance
摘要
Abstract
The enrichment of CH4 in low-concentration coalbed methane requires high-performance CH4/N2 adsorbents.T-zeolite was successfully synthesized using a hydrothermal method and characterized by PXRD,SEM,and N2 adsorption/desorption.The CH4 and N2 single-component adsorption performance of T-zeolite was tested,and its Ideal Adsorbed Solution Theory(IAST)selectivity and adsorption heat were calculated.The CH4/N2 separation performance of T-zeolite was also investigated.The results show that at 298 K and 0.1 MPa,the CH4 adsorption capacity of T-zeolite(Tz-168)is 21.4 cm3/g,and the CH4/N2 selectivity of T-zeolite is 5.5,which is better than most molecular sieve adsorbents.CH4/N2 mixture permeation experiments further confirm that T-zeolite exhibits excellent CH4/N2 separation performance,with actual separation time of 5 min and 7 min at V(CH4):V(N2)of 50:50 and 20:80,respectively.This has significant application potential in the enrichment of CH4 from low-concentration coalbed methane.关键词
煤层气/T沸石/CH4/N2/吸附分离Key words
coalbed methane/T-zeolite/CH4/N2/adsorption separation分类
化学化工引用本文复制引用
刘晋芳,金晓宇,李媛,荀文杰,申芳芳,乔旭,王小青,杨江峰..T沸石的合成及其CH4/N2吸附分离性能研究[J].低碳化学与化工,2025,50(7):67-71,108,6.基金项目
国家自然科学基金面上项目(22378287,22478272). （22378287,22478272）
