【摘要】 常规催化裂化反应催化材料活性评价方法的待评反应产物都是在线收集、离线分析,只能计算平均转化率和产物分布,无法研究催化材料在测定过程中的失活状况。为了给催化材料裂化活性评价和失活研究提供更多的信息,提出了一种催化材料裂化活性和失活速率的评价方法——连续脉冲微反-色谱法。该方法仅需5~30mg的待评材料,即可在较短的时间内(单次评价时间不超过20min)给出多种评价信息,得到常规评价方法无法得到的一些新的信息,具有评价信息丰富、准确、快速和经济的优点。更多还原

【Abstract】 In conventional catalyst evaluation,products were off-line analyzed,and only average conversion and product distributions were provided without information about the proceeding of catalyst deactivation.In order to obtain more information from the catalyst evaluation,a new method,continuous pulse micro-reactor chromatography,was proposed and put into practice to observe the deactivation of catalyst.The new method could obtain various evaluation information in 20 min(per run),and it could provide some new understandings about the catalyst performance,which was impossible for the conventional methods.Only 5-30 mg sample was needed,and the test was accurate,fast and economic.更多还原