摘要
以硅酸四乙酯和过渡金属盐(NiCl_(2)、CoCl_(2))为原料,采用水热法合成了聚乙烯吡咯烷酮(PVP)表面改性纳米SiO_(2)球负载Ni、Co的双金属催化剂,并研究了反应温度、双金属比例、催化剂用量对丙烷脱氢催化性能的影响。结果表明,双金属n(Ni)∶n(Co)=1∶5、w(催化剂)=3%、t=500℃,丙烯选择性达到最高76.23%;t=650℃,丙烷转化率达到最高65.38%。
Bimetallic catalysts containing Ni and Co supported by PVP surface modified nano silica balls were synthesized by hydrothermal method using tetraethyl silicate and transition metal salt(NiCl_(2),CoCl_(2))as raw materials.The effects of reaction temperature,bimetallic ratio and catalyst dosage on the catalytic performance of propane dehydrogenation were investigated.As a result,when the molar ratio of bimetallic Ni and Co is 1∶5 and the amount of catalyst is 3%,the selectivity of propylene reaches the highest 76.23%at 500℃.When the reaction temperature is 650℃,the maximum propane conversion is 65.38%.
作者
张琦
王以臣
于学聪
施伟光
ZHANG Qi;WANG Yichen;YU Xuecong;SHI Weiguang(College of Chemistry&Chemical Engineering,Northeast Petroleum University,Daqing 163318,China;Gudao Oil Production Factory,Shengli Oilfield Company Ltd.,Sinopec,Dongying 257231,China;Unconventional Oil&Gas Research Institute,Northeast Petroleum University,Daqing 163318,China)
出处
《化工科技》
CAS
2023年第2期10-15,共6页
Science & Technology in Chemical Industry
基金
黑龙江省人才类项目青年创新人才项目(UNPYSCT-2017039)
东北石油大学化学工程与技术优势特色学科优秀科研人才支持计划项目(ts26180215)。
