油溶性纳米Fe_3O_4催化稠油水热裂解降黏
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摘要
通过低温双相法合成了油溶性纳米Fe_3O_4粒子,并将其应用于催化新疆克拉玛依稠油的水热裂解降黏实验。结果表明,该催化剂能有效降低稠油黏度。在240℃水热条件下,使用油溶性纳米Fe_3O_4催化剂,当催化剂加入量为稠油质量的0.3%,水加入量为稠油质量的25%时,反应24 h后稠油降黏率达到60.3%。对处理前后稠油的各组分进行了四组分分析、红外、元素分析等,发现稠油胶质含量下降10.32%,沥青质含量下降23.43%。
A new type of oil-soluble viscosity reducer-Fe_3O_4 nanocrystals used in catalytic aquathermolysis of Xinjiang Karamay heavy oil was synthesized in a single reaction via a facile solution-based dehydration process.The experimental results show that,using 0.3 wt% catalyst and 25 wt% water at 240 ℃ for 24 h,the viscosity of oil sample could be decreased by 60.3 %.Furthermore,the structure and group compositions of the heavy oil were characterized by "four components analytical method",Fourier transform infrared(FT-IR),elemental analysis(EL) before and after the catalytic aquathermolysis.It was found that the resin and asphaltene of oil sample was decreased by 10.32 % and 23.43 % respectively.
A new type of oil-soluble viscosity reducer-Fe_3O_4 nanocrystals used in catalytic aquathermolysis of Xinjiang Karamay heavy oil was synthesized in a single reaction via a facile solution-based dehydration process.The experimental results show that,using 0.3 wt% catalyst and 25 wt% water at 240 ℃ for 24 h,the viscosity of oil sample could be decreased by 60.3 %.Furthermore,the structure and group compositions of the heavy oil were characterized by "four components analytical method",Fourier transform infrared(FT-IR),elemental analysis(EL) before and after the catalytic aquathermolysis.It was found that the resin and asphaltene of oil sample was decreased by 10.32 % and 23.43 % respectively.
引文
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[2]Alboudwarej Hussein,Felix Joao,Taylor S,et al.Highlighting heavy oil[J].Oilfield review,2006,18(2):34-53.
[3]王新亮,李小瑞,王磊,等.稠油用聚合物/表面活性剂二元复合表面活性剂[J].石油化工,2014,43(5):551-4.
[4]韩梅,李清彪,景萍,等.有机镍催化剂对稠油的降粘作用[J].化学反应工程与工艺,2007,23(2):183-7.
[5]Wu Chuan,Lei Guanglun,Yao Chuanjin,et al.In situ upgrading extra-heavy oil by catalytic aquathermolysis treatment using a new catalyst based anamphiphilic molybdenum chelate[C].Society of Petroleum Engineers,2010.
[6]Guo Jixiang,Wang Heyi,Chen Chaogang,et al.Synthesis and evaluation of an oil-soluble viscosity reducer for heavy oil[J].Petroleum Science,2010,7(4):536-40.
[7]贺丽鹏,丁彬,耿向飞,等.新疆油田九7区超稠油超声波辅助化学降黏[J].石油化工,2016,(2016年01):97-101.
[8]Clark Peter D,Hyne James B,Tyrer J David.Chemistry of organosulphur compound types occurring in heavy oil sands:1.High temperature hydrolysis and thermolysis of tetrahydrothiophene in relation to steam stimulation processes[J].Fuel,1983,62(8):959-62.
[9]陈尔跃,刘永建,闻守斌.甲苯在强化辽河油田稠油催化降黏中的作用[J].大庆石油学院学报,2005,29(6):38-9.
[10]闻守斌,刘永建,宋玉旺,等.硅钨酸对胜利油田超稠油的催化降黏作用[J].大庆石油学院学报,2004,28(1):25-7.
[11]吴本芳,沈本贤,杨允明.辽河特稠油降粘研究[J].油气储运,2003,22(6):27-32.
[12]陈尔跃,刘永建,梁敏,等.油溶性油酸镍对辽河稠油的降黏作用[J].大庆石油学院学报,2010,34(6):68-71.
[13]常运兴,张新军.稠油油溶性降粘剂降粘机理研究[J].油气田地面工程,2006,25(4):8-9.
[14]Li Yizhao,Ma Fengyun,Su Xintai,et al.Ultra-large-scale synthesis of Fe3O4 nanoparticles and their application for direct coal liquefaction[J].Industrial&Engineering Chemistry Research,2014,53(16):6718-22.
[15]Xu Zhichuan,Shen Chengmin,Hou Yanglong,et al.Oleylamine as Both Reducing Agent and Stabilizer in a Facile Synthesis of Magnetite Nanoparticles[J].Chemistry of Materials,2009,21(9):1778-80.
[16]Zhang Ling,He Rong,Gu Hong-Chen.Oleic acid coating on the monodisperse magnetite nanoparticles[J].Applied Surface Science,2006,253(5):2611-7.
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