典型挥发性有机物在疏水Y分子筛上的吸/脱附研究  

Study on Adsorption/Desorption of Typical Volatile Organic Compounds on Hydrophobic Y Zeolites

作　　者：任超 高君安 潘利鹏 张傑[2] 朱吉钦[2] Ren Chao;Gao Jun′an;Pan Lipeng;Zhang Jie;Zhu Jiqin(Shanxi Lu′an Coal Based Clean Energy Co.,Ltd.,Changzhi Shanxi 046000,China;State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]山西潞安煤基清洁能源有限责任公司,山西长治046000 [2]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《煤化工》2020年第4期19-23,共5页Coal Chemical Industry

摘　　要：针对高湿度条件下常规Y分子筛吸附VOCs性能不佳的问题,以常规Y分子筛为VOCs吸附剂前驱体,采用气相覆硅改性方法对其表面结构进行调控。研究结果表明,改性Y分子筛结晶度为81%,孔径基本保持不变,比表面积仅下降8.1%;其对不同VOCs分子吸附容量相差不大,具有疏水性和广谱吸附性;在脱附功率800 W微波作用下脱附15 min后,4种典型VOCs分子在改性Y分子筛上均能较为彻底地完成脱附,脱附率能达到89%以上。In view of the problem of poor performance of conventional Y zeolites in adsorbing VOCs under high humidity conditions,the conventional Y zeolites was used as the precursor of VOCs adsorbent,and its surface structure was adjusted by the gas phase silicon-coated modification method.The research results showed that the crystallinity of the modified Y zeolites was 81%,the pore size remained basically unchanged,and the specific surface area only decreased by 8.1%.Also,its adsorption capacity of different VOCs was not much different,with hydrophobicity and broad-spectrum adsorption.After desorption for 15 min under the desorption power of 800 W microwave,four typical VOCs molecules could be completely desorbed on the modified Y zeolites,and the desorption rate could reach more than 89%.

关 键 词：挥发性有机化合物 Y分子筛 疏水改性 吸附 微波脱附 

分 类 号：X511[环境科学与工程—环境工程]