钒改性Y型分子筛催化剂的性能  

Properties of zeolite Y catalysts modified with vanadium

作　　者：王林 薛瑜[2] 刘涛 孙书红 张艳惠 高雄厚 

机构地区：[1]中国石油兰州化工研究中心,甘肃兰州730060 [2]中国石油兰州石化公司研究院,甘肃兰州730060

出　　处：《石化技术与应用》2009年第6期511-514,共4页Petrochemical Technology & Application

基　　金：中国石油天然气股份有限公司资助项目(项目编号:05-01-01-13)

摘　　要：采用钒对Y型分子筛改性,并借助X荧光光谱分析、X射线衍射分析、小型固定流化床评价装置等,对其性能进行了表征与评价。结果表明,经离子交换法改性的Y型分子筛比浸渍法改性者具有更好的水热稳定性。在离子交换法改性的Y型分子筛/VO2+(以单质钒计,质量比)为1.000/0.005的条件下,钒的利用率最高;当VO2+质量浓度增大到6 g/L时,脱硫率为87.31%,微反活性为64%。以减压蜡油为原料,与未改性分子筛制备的催化剂相比,以离子交换法改性时转化率降低了2.70个百分点,脱硫率接近20%。Zeolite Y was modified with vanadium, and its properties were characterized by X - ray fluo- rescence analysis, X - ray diffraction measurement, and a minitype fixed fluid bed reactor et al. The results showed that zeolite Y modified by ion- exchange method had better hydrothermal stability than that by dipping method. The availability of vanadium was the highest at the mass ratio of zeolite Y modified by ion - exchange method/VO^2＋ of 1. 000/ 0. 005. The desulfurization rate and the micro- activity was 87.31%, 64% respectively when the VO^2＋ content was 6 g/L. Using vacuum residue as material, compared with the catalyst prepared with unmodified zeolite, the conversion for the catalyst prepared with modified zeolite Y decreased by 2.70 percentage points, and the desulfurization rate was approximately 20%.

关 键 词：催化裂化 减压渣油 柴油 催化剂 分子筛 脱硫率 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]