紫外荧光法测定原油中硫含量的稀释剂研究
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摘要
为解决紫外荧光法测定原油中硫含量进样困难的问题,选取航空煤油、对二甲苯、无水乙醇、石油醚四种试剂以及相互混合液分别对不同原油进行稀释,从而降低原油粘度,研究了不同稀释剂和不同比例下用紫外荧光法测定粘稠原油的硫含量.考察了稀释比例,超声波作用时间,超声波温度,进行三因素三水平正交实验分析.最佳测定条件为:超声波作用时间为15 min,超声波作用温度为50℃,稀释比例为1∶20.测定结果相对误差小于3. 7%,回收率范围为83. 0%~112. 8%.
In order to solve the problem of determining sulfur content in crude oil by ultraviolet fluorescence method,aviation kerosene,p-xylene,anhydrous ethanol,petroleum ether and mutual mixture were selected to reduce crude oil viscosity by dilution. Different diluents and ratios were studied to determine the sulfur content of viscous crude oils by ultraviolet fluorescence. the dilution ratio,ultrasonic time and temperature and the trifactor tri-level orthogonal experiment analysis were conducted. The experiment results show that the optimum condition is 15 min of ultrasonic time at 50℃ with dilution ratio of 1∶ 20. The relative error in the solution is less than 3. 7%,and the recoveries are in the range from 83. 0% ~ 112. 8%.
In order to solve the problem of determining sulfur content in crude oil by ultraviolet fluorescence method,aviation kerosene,p-xylene,anhydrous ethanol,petroleum ether and mutual mixture were selected to reduce crude oil viscosity by dilution. Different diluents and ratios were studied to determine the sulfur content of viscous crude oils by ultraviolet fluorescence. the dilution ratio,ultrasonic time and temperature and the trifactor tri-level orthogonal experiment analysis were conducted. The experiment results show that the optimum condition is 15 min of ultrasonic time at 50℃ with dilution ratio of 1∶ 20. The relative error in the solution is less than 3. 7%,and the recoveries are in the range from 83. 0% ~ 112. 8%.
引文
[1]李莉,张海峰,刘盛民,等.进口俄罗斯原油中硫含量检验的实验比对研究[J].分析化学进展,2017,7(3):203-208.
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[10]曹余勤,朱培德,李康祥,等.紫外荧光法、化学发光法与微库仑法测定石油产品中总硫、总氮含量的对比研究[J].分析仪器,2005(4):42-46.
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[12]杨玲,王林生,赖华生,等.不同稀释剂中t-BAMBP萃取铷铯的研究[J].稀有金属,2011,35(4):627-632.
[13]敬加强,黄敏,杨莉,等.柴油稀释对原油流动性及析蜡过程的影响研究[J].西南石油大学学报(自然科学版),2009,31(2):147-150.
[14]赵志武,刘祥楼,王策.基于紫外荧光分析的汽柴油硫含量检测方法研究[J].自动化与仪器仪表,2014(6):30-31.
[15]杨晓斌,柯东贤,朱全力.紫外荧光法测定油品中硫含量[J].广东化工,2008,35(8):137-139.
[16]杨大鹏,杨小鹏,王殿生.超声波制备低含油稳定原油乳化液的正交实验[J].实验室研究与探索,2014,33(5):33-36.
[17] JENNY NELSON, GREG GILLELAND, LAURA POIRIER,et al. Elemental Analysis of Crude Oils Using Microwave Plasma Atomic Emission Spectroscopy[J]. Energy Fuels. 2015,29:5587-5594.
[18]ISO/DIS 20729:2016. Natural gas—Determination of sulfur compounds—Determination of total sulfur content by ultraviolet fluorescence method[S].[s. l.]:[s. n.],2016.
[19]LAURA POIRIER,JENNY NELSON,DAVID LEONG,et al. Application of ICP-MS and ICP-OES on the Determination of Nickel, Vanadium, Iron, and Calcium in Petroleum Crude Oils via Direct Dilution[J]. Energy Fuels,2016,30:3783-3790.
[20]刘悍,汤建国,李正风,等.超声辅助萃取高效液相色谱法测定烟草制品中的维生素E[J].分析试验室,2010,29(5):89-92.
[21]贾双琳,况云所.聚氨酯泡沫塑料富集-ICP-MS测定化探样品中微量金[J].分析试验室,2010,29(5):161-163.
[2]吴考民,王可中,石鑫,等.含硫原油对输油管道的腐蚀性[J].油气储运,2010,29(8):616-618.
[3]牟明仁,贺新安,金进照,等.部分口岸进口原油质量分析与评价[J].检验检疫科学,2006,16(4):53-57.
[4]刘名扬,欧阳昌俊,刘卫东,等.俄罗斯、哈萨克斯坦进口原油蜡含量测定标准的研究[J].光谱实验室,2011,28(2):591-594.
[5]陈义才,沈忠民,罗小平.石油与天然气有机地球化学[M].北京:科学出版社,2007.
[6]刘名扬,杨铎,郭慧慧,等.俄罗斯进口原油中硫含量检验标准的比对研究[J].大连交通大学学报,2014,35(3):92-96.
[7]US-ASTM. ASTM D4294-2008用能量扩散X射线荧光光度法测定石油和石油产品中硫含量的标准试验方法[S].美国:[s. n.],2008.
[8]杨慧娟.紫外荧光法测定合成气中痕量硫含量[J].炼油与化工,2006,17(3):42-44.
[9]余顺玉.紫外荧光法测定石油产品中硫质量分数[J].化工科技,2009,17(5):48-50.
[10]曹余勤,朱培德,李康祥,等.紫外荧光法、化学发光法与微库仑法测定石油产品中总硫、总氮含量的对比研究[J].分析仪器,2005(4):42-46.
[11]吉芹,罗腾,许玉霞,等.新型环保系列稀释剂的研制[J].技术与经验交流,2016,19(12):24-27.
[12]杨玲,王林生,赖华生,等.不同稀释剂中t-BAMBP萃取铷铯的研究[J].稀有金属,2011,35(4):627-632.
[13]敬加强,黄敏,杨莉,等.柴油稀释对原油流动性及析蜡过程的影响研究[J].西南石油大学学报(自然科学版),2009,31(2):147-150.
[14]赵志武,刘祥楼,王策.基于紫外荧光分析的汽柴油硫含量检测方法研究[J].自动化与仪器仪表,2014(6):30-31.
[15]杨晓斌,柯东贤,朱全力.紫外荧光法测定油品中硫含量[J].广东化工,2008,35(8):137-139.
[16]杨大鹏,杨小鹏,王殿生.超声波制备低含油稳定原油乳化液的正交实验[J].实验室研究与探索,2014,33(5):33-36.
[17] JENNY NELSON, GREG GILLELAND, LAURA POIRIER,et al. Elemental Analysis of Crude Oils Using Microwave Plasma Atomic Emission Spectroscopy[J]. Energy Fuels. 2015,29:5587-5594.
[18]ISO/DIS 20729:2016. Natural gas—Determination of sulfur compounds—Determination of total sulfur content by ultraviolet fluorescence method[S].[s. l.]:[s. n.],2016.
[19]LAURA POIRIER,JENNY NELSON,DAVID LEONG,et al. Application of ICP-MS and ICP-OES on the Determination of Nickel, Vanadium, Iron, and Calcium in Petroleum Crude Oils via Direct Dilution[J]. Energy Fuels,2016,30:3783-3790.
[20]刘悍,汤建国,李正风,等.超声辅助萃取高效液相色谱法测定烟草制品中的维生素E[J].分析试验室,2010,29(5):89-92.
[21]贾双琳,况云所.聚氨酯泡沫塑料富集-ICP-MS测定化探样品中微量金[J].分析试验室,2010,29(5):161-163.