非贵金属/沸石型正戊烷异构化催化剂的研究Ⅱ.反应工艺条件对异构化性能的影响  

Non-Noble Metal Supported Zeolite Catalyst for n-Pentane Isomerization Ⅱ. Influence of Reaction Conditions on Reaction Performance

作　　者：易玉峰[1] 靳广州[1] 胡颖[1] 丁福臣[1] 李术元[2] 

机构地区：[1]北京石油化工学院化学工程系,北京102617 [2]石油大学(北京)化工学院,北京102249

出　　处：《石油化工》2004年第4期325-329,共5页Petrochemical Technology

摘　　要：在高压微反色谱装置上评价了 NiMo/Hβ催化剂的性能,考察了催化剂的还原条件及反应温度、压力、氢/烃摩尔比、质量空速等因素对异构化反应的影响。实验结果表明,450℃还原时,催化剂的催化性能较高;在反应温度280℃、压力1.5 MPa、质量空速2 h-1、氢/烃摩尔比为4的较优实验条件下,正戊烷的转化率为71.52％,反应的选择性为93.88％,异构烃的收率为67.10％,液体烃的收率为95.57％。100 h寿命实验表明,催化剂性能稳定,活性、选择性未见明显下降。Non- noble metal β zeolite supported catalyst was appraised on a micro-reactor system. For NiMo/ Hβ catalyst, optimal reaction conditions, such as temperature, pressure, hydrogen/hydrocarbon mole ratio, and weight hourly space velocity, were determined. 450 ℃ was the most suitable reduction temperature for NiMo/Hβ catalyst. Under the optimized reaction conditions of temperature 280 ℃ , pressure 1.5 MPa, WHSV 2 h , and hydrogen/hydrocarbon mole ratio 4, the conversion was 71.52% , iso-pentane selectivity was 93.88% , iso-pentane yield was 67.10% ,and liquid products yield was 95.57% for n-pentane. During a period of more than 100 h of continuous running of n-pentane isomerization on NiMo/H β catalyst, the activity and selectivity showed no obvious decline. The stability of the catalyst was fairly good.

关 键 词：异构化 催化剂 Β沸石 正戊烷 

分 类 号：TQ203.4[化学工程—有机化工]