高酸重质原油脱钙技术工业应用研究  

Industrial application of decalcification technology for heavy crude oil with high acidity

作　　者：丁秋炜[1] 王素芳[1] 于晓微[1] 李志元[1] 林蓓[1] 张艳芳[1] 滕厚开[1] 

机构地区：[1]中海油天津化工研究设计院有限公司,天津300131

出　　处：《现代化工》2016年第6期165-168,共4页Modern Chemical Industry

摘　　要：通过在实验室的间歇和连续原油脱钙评价实验,考察了自主研发的原油脱钙剂针对高酸重质新疆管输原油的脱钙效果,并在某炼厂550万t/a常减压电脱盐装置上进行了工业化试验。实验室评价结果表明,当脱钙剂加量与原油中钙元素含量的质量比达到4.0时,原油脱钙率达到70%以上。工业化试验结果表明,当剂钙质量比为4.0时,原油脱钙率达到73.5%;随着脱钙剂的加入及加量的增大,减四线油、渣油钙含量及石油焦灰分显著降低,焦化加热炉结焦趋势变缓;同时,脱钙剂没有影响电脱盐装置原油脱盐脱水效果,也没有增加电脱外排污水的处理难度。The influence of decalcification agent which is developed by CNOOC Tianjin Chemical Research Design Institute on the decalcification effect of Xinjiang pipeline heavy crude oil with high acidity is studied by laboratory batch tests and continuous experiments. The industrial trial is carried out in the electric desalting device of the atmospheric-vacuum distillation unit in a refinery plant. When the mass ratio of decalcification agent to calcium is 4. 0,the calcium removal rates of crude oil in the laboratory and industrial trial are above 70% and 73. 5%,respectively. By increasing the amount of decalcification agent,the contents of vacuum distillate 4 line oil and residue,and the petroleum coke ash are significantly decreased. The coking tendency of coker furnace is also slowed down. At the same time,the application of decalcification agent not only has no adverse effect on the desalting and dewatering effect of electric desalting device,but also does not increase the difficulty in treatment of sewage from electric desalting device.

关 键 词：原油脱钙剂 工业脱钙试验 电脱盐 石油焦 

分 类 号：TE625[石油与天然气工程—油气加工工程]