石油化工高等学校学报2012，Vol.25Issue(3)：13-17,5.DOI:10.3969/j.issn.1006-396X.2012.03.003
二甲苯和乙苯在MIL-53(Al)上的吸附分离性能研究
Adsorption and Separation Properties of Xylene Isomers and Ethylbenzene on Metal-Organic Framework MIL-53(Al)
摘要
Abstract
Metal-organic Frameworks MIL- 53(AI) has been hydrothermally synthesized and investigated by means of ℃ray diffraction (XRD) and N2adsorption-desorption experiment. Adsorption isotherms of C8 aromatic isomers, including para-xylene, ortho - xylene, meta-xylene, and ethylbenzene, in metal - organic framework Mil-53 (Al) has been systematically investigated by using intelligent gravimetric analyzer (IGA) at 303 K and 373 K. The results indicate that adsorption isotherms at 303 K present type-I isotherms. The deviation from normal Langmuir model of the isotherms at 373 K can be. However, found because of the breathing effect of Mil-53CAI) framework. The results also indicate that of xylene in this material has very good adsorption capacity, while effect of ethylbenzene adsorption is the worst. Two-component mixture separation factor can be obtained through the fixed bed breakthrough experiments and gas chromatography analysis. It has good separation performance of o-xylene and ethylbenzene, and selectivity achieved to 9. 2.关键词
MIL-53(Al)/二甲苯/乙苯/吸附/分离因数Key words
53(AI)s Xylenes Ethylbenzene! Adsorption/ Separation factor / Corresponding author.分类
能源科技引用本文复制引用
段林海,董宪莹,张晓彤,王利,邵新超,宋丽娟..二甲苯和乙苯在MIL-53(Al)上的吸附分离性能研究[J].石油化工高等学校学报,2012,25(3):13-17,5.基金项目
国家自然基金资助项目(21076100). （21076100）
