8
油气处理与加工
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
氧化吸附法深度脱除MTBE产品中硫化物研究
王胜强王庆12于宏兵
1.南开大学环境科学与工程学院2.新疆师范大学化学化工学院
2102
摘要甲基救丁基醚（MTBE)是我国汽油中一种重要的调和组分。降低MTBE产品中疏化物含量，可促进汽油的清洁燃烧和环境保护。采用MTBE为溶剂分别配制了以二甲基二硫醚(DMDS)、甲基丁基硫醚(TBMS)为模型硫化物的含硫MTBE产品样品。脱硫剂由Pd/C、异丙醇、氢氧化钠和去离子水组成。首先，采用N；吸附等温线、TEM、XRD对Pd/C结构特征进行了表征。结果显示， Pd/C的比表面积为1836m*/g，孔容为0.98cm"/g，根据其I型吸附等温线可知，其绝大部分孔为微孔。由Pd/C的TEM图可以看出，Pd的纳米颗粒比较均匀地分布于活性炭材料上，Pd金属纳米粒子直径约3～5nm。XRD图显示Pd纳米晶体颗粒的（111)、（200）、（220)和（311)典型晶面存在。脱硫实验结果显示，采用间歌反应器在50℃下，脱硫剂可在1h内将MTBE产品中的硫质量分数从150μg/g 降至10ug/g以下，从而得到低含硫MTBE产品，脱硫剂的脱硫效果得到较好的验证。Pd/C既作为原位产生过氧化氢的催化剂，又是吸附矾类硫化物的吸附剂，洗脱再生后仍具有较好的催化和脱硫性能。
关键词甲基敏丁基醚脱硫氧化吸附二甲基二硫醚甲基叔丁基硫醚
中图分类号：TE624.5；TQ028文献标志码：ADOI；10.3969/j.issn.1007-3426.2017.01.002
DeepremovalofsulfurcompoundsfromMTBEproducts
basedonoxidativeadsorption
Wang Shengqiang',Wang Qing', Yu Hongbing'
1. College of Environmental Science and Engineering of Nankai Uniuersity, Tianjin, Chind
2. School of Chemistry and Chemical Engineering of Xinjiang Normal Uniuersity, Urumqi,Xinjiang, China Abstract: Methyl tert-butyl ether (MTBE) is an important blending component of gasoline in China, Reducing the sulfur compounds contents in MTBE products can promote clean burning of gasoline and environmental protection. The MTBE products samples containing sulfur compounds were prepared with dimethyl disulfide (DMDS) and tert-butyl methyl sulfide (TBMS) using MTBE as solvents, respectively.The desulfurizer was composed of Pd/C, isopropanol, sodium hydroxide and deionized water. The Pd/C structure characteristics was characterized by N, adsorption isotherm, TEM and XRD. The feature of type I isotherm confirmed that the existence of micropores in Pd/C catalyst and the BET surface area of Pd/C was 1 836 m*/g and the pore volume was 0. 98 cm*/g, respectively. According to the adsorption isotherm, it could be concluded that most of the pores are micropores. The average particle size of Pd crystal particle shown in TEM images was about 3—5 nm and the crystal particles of Pd were distributed uniformly in activated carbon which could strengthen the catalytic efficiency and result in strong combination between Pd and activated carbon. Four typical
基金项目：国家自然科学基金（缩聚反应/吸附法深度脱除燃油中咔唑类氮化物研究）“21006053"；南开大学2015年校级教学
改革项目（以创新研究与训练为导向的公选课课程建设研究)"ZB160052"，天津市教育系统调研课题项目（校企合作育人调研项目）“普通课题14”
作者简介：王胜强（1977一），男，山东平原人，南开大学讲师，主要从事燃料油脱硫与工业清洁生产技术研究工作。E-mail： wshengq@126.com
万方数据