重质燃料油稳定性测定仪的研制及应用  

DEVELOPMENT AND APPLICATION OF STABILITY TESTER FOR HEAVY FUEL OIL

作　　者：程世刚 王群威 奚中威 Cheng Shigang;Wang Qunwei;Xi Zhongwei(Ningbo Customs Technology Center,Ningbo,Zhejiang 315048)

机构地区：[1]宁波海关技术中心,浙江宁波315048

出　　处：《石油炼制与化工》2023年第9期137-142,共6页Petroleum Processing and Petrochemicals

摘　　要：基于重质油样品用正十六烷稀释后能产生沥青质絮凝的检测原理,自主研制出一套测定重质油品P值的测定仪,并建立使用该仪器测定重质油品P值的检测方法——压力-光阈值法。在控制正十六烷滴加速率及间隔的情况下,以滴加正十六烷产生的压力、透射光透光率和背向散射光强度的变化均超过设置的阈值来确定检测的终点。压力-光阈值法通过使用较成熟的检测系统,简化操作,保证了测试的精度,减少了样品及试剂的用量和检测次数,同时使用3种指标判断模式,保证了检测结果的准确性和精密度。According to the detection principle that asphaltene flocculent can be produced when heavy fuel oil samples are diluted with n-hexadecane,a set of instrument for measuring the P value of heavy oil products has been developed independently,and a pressure-light threshold method was developed for the determination of the P value of heavy oil products.Under the control of dropping rate and interval of n-hexadecane,the end point of detection was determined by the change of pressure,transmitted light transmittance and intensity of backscattered light caused by dropping n-hexadecane.The pressure-light threshold method could simplify the operation,ensure the accuracy of the test,and reduce the frequent preparation and detection times of samples and reagents.At the same time,the accuracy and precision of the detection results were guaranteed by using 3 kinds of parameters judgment modes.

关 键 词：P值 压力-光阈值法 重质燃料油 稳定性 

分 类 号：TE967[石油与天然气工程—石油机械设备]