摘要
近年来丙烯需求及其价格持续走高,由丙烷脱氢制丙烯是其主要来源之一。本研究首先探讨YBD(Yantai university Butane Dehydrogenation)型催化剂颗粒内外扩散对其反应性能的影响,在催化剂颗粒尺寸40~80目、丙烷原料气流量40~100 mL/min范围内,催化剂反应性能基本不受内外扩散的影响;然后采用固定床反应装置评价了该催化剂对丙烷脱氢反应的适用性。结果表明:在压力0.1 MPa、温度595℃、空速600 h-1下,YBD型催化剂的丙烷脱氢反应性能最佳,丙烷转化率达45.88%,丙烯选择性80.65%;该催化剂能够维持较长时间的催化活性稳定性,明显优于工业催化剂。
In recent years,the demand and price of propylene continue rising recently.Propane dehydrogenation(PDH)is one of key technologiesto produce propylene.In this study,the influence of internal and external diffusions of catalyst YBD(Yantai university Butane Dehydrogenation)on its reaction performance was firstly discussed.In the range of particle size of 40~80 mesh and propane flow rate of 40~100 mL/min,the reaction performance of catalyst YBD was rarely affected by internal and external diffusions.Herein,the applicability of the catalyst to propane dehydrogenation was also evaluated by a lab-scale fixed bed reactor.The results indicated that the catalyst YBD presented the optimum performance on PDH under the pressure of 0.1 MPa,temperature of 595 and space velocity of 600 h-1.The conversion of propane was 45.88%and the selectivity of propylene was 80.65%.Additionally,the catalyst can maintain a long-time stability of catalytic activity,which is obviously better than commercial catalysts.
作者
张琳
杜玉朋
房德仁
陈小平
任万忠
ZHANG Lin;DU Yupeng;FANG Deren;CHEN Xiaoping;REN Wanzhong(College of Chemistry&Chemical Engineering,Yantai University/Shandong Collaborative Innovation Center of Light Hydrocarbon Transformation and Utilization,Shandong,Yantai 264005,China)
出处
《石河子大学学报（自然科学版）》
北大核心
2021年第4期404-408,共5页
Journal of Shihezi University(Natural Science)
基金
国家自然科学基金项目(21908186)
山东省高等学校科学技术计划项目(J17KB075)
山东省自然科学基金项目(ZR2017LB022)。
关键词
丙烷脱氢
YBD型催化剂
催化性能
稳定性
propane dehydrogenation
YBD catalyst
catalytic performance
stability
