化工学报2016，Vol.67Issue(6)：2386-2392,7.DOI:10.11949/j.issn.0438-1157.20151606
AC/X-G吸附剂的制备及CH4/N2吸附分离性能
Preparation of AC/X-G adsorbent and CH4/N2 adsorption separation performance
摘要
Abstract
The 13X/activated carbon composite was treated by 0.2g·ml−1 glucose solution for carbon deposition. The effect of deposition times on the pore structure, surface properties and separation performance of CH4/N2 were studied. The crystalline, pore structure and surface properties of the samples were investigated by X-ray diffraction (XRD), N2 adsorption-desorption isotherms at 77 K, scanning electron microscopy (SEM), CO2-TPD and Fourier transform infrared spectrum (FT-IR). The adsorption isotherms of CH4 and N2 were tested at 298 K and 100 kPa,and compared with the adsorption separation properties of carbon materials and 13X zeolite reported in the literatures. The experimental results showed that the relative content of X zeolite, the micropore surface area and the micropore volume of AC/X-G were gradually decreased with the increase of deposition times. The surface of samples was covered by carbon membrane, which led to decrease of the alkaline functional groups but increase of containing C—O groups. The adsorption capacities of CH4 and N2 decreased, while the adsorption separation coefficient was improved. After third deposition, the adsorption separation coefficient of CH4/N2 reached 3.0. The oxygen-containing functional groups on the surface of AC/X-G were beneficial to improve the separation performance of CH4/N2.关键词
吸附剂/葡萄糖/碳沉积/吸附/分离Key words
adsorbent/glucose/carbon deposition/adsorption/separation分类
化学化工引用本文复制引用
张冬梅,程文萍,张明胜,崔杏雨,马静红,李瑞丰..AC/X-G吸附剂的制备及CH4/N2吸附分离性能[J].化工学报,2016,67(6):2386-2392,7.基金项目
国家自然科学基金项目（51204120）；山西省青年科技研究基金项目（2014021014-1）；山西省自然科学基金项目（2012011005-6）；山西省煤基重点科技攻关项目（FT201402-03）。@@@@supported by the National Natural Science Foundation of China (51204120), the Natural Science Foundation of Shanxi Province (2014021014-1,2012011005-6) and the Key Scientific and Technological Project of Coal Fund of Shanxi Province (FT201402-03) （51204120）
