水滴法测定催化裂化催化剂孔体积的不确定度评估  

Evaluation of uncertainty in determination of pore volume of catalytic cracking catalyst by aquametry

作　　者：曹庚振 郑雁 黄剑锋[1] 杨一青 Cao Gengzhen;Zheng Yan;Huang Jianfeng;Yang Yiqing(Lanzhou Petrochemical Research Center,PetroChina Petrochemical Research Institute,Lanzhou 730060,China)

机构地区：[1]中国石油石油化工研究院兰州化工研究中心,甘肃兰州730060

出　　处：《炼油与化工》2022年第5期57-59,共3页Refining And Chemical Industry

摘　　要：采用水滴法对催化裂化催化剂孔体积进行测定,分析了测量过程中产生测量不确定度的主要来源,主要由测量重复性、样品焙烧、样品称量和使用滴定管等方面引起,通过试验数据和计算对各不确定度分量进行评定,得到孔体积的扩展不确定度。评定结果表明,测量重复性引起的不确定度最大,样品称量引起的不确定度最小。对于孔体积水平为0.35 mL/g的测试样品,其扩展不确定度为0.01 mL/g。It used the aquametry method to determine on pore volume catalytic cracking catalyst,analyzed the main source of measurement uncertainty in the measuring process,mainly caused by the measurement repeatability,sample roasting,sample weighing and burette using,etc,achieved the pore volume of expanded uncertainty through assessing the experiment data and calculation of the uncertainty components.The evaluation results showed that the uncertainty caused by measurement repeatability was the largest,and the uncertainty caused by sample weighing was the smallest.For the test sample with a pore volume level of 0.35 mL/g,its extended uncertainty was 0.01 mL/g.

关 键 词：催化裂化催化剂 孔体积 水滴法 不确定度 

分 类 号：TE624.91[石油与天然气工程—油气加工工程]