磺化型有机金属催化剂在稠油降黏改质中的应用
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摘要
制备了3种磺化型有机酸金属催化剂,用高温高压反应釜进行了稠油的催化降黏实验,筛选出了最佳催化剂和最佳降黏条件。结果表明,磺化型有机酸铁催化剂的降黏效果最佳,当稠油量为250g时,加入1g该催化剂,加入油层水量为m(油层水)∶m(稠油)=30%,在220℃反应24h,辽河稠油黏度从81 400mPa·s降至3 000mPa·s,降黏率达96.31%。检测了催化降黏前后稠油四组分及不凝气体产物:饱和分含量提高7.5%、芳香分含量提高3.2%,胶质含量降低8.2%,沥青质含量降低2.5%;检测出不凝气相产物含有甲烷、烯烃和二氧化碳等气体,符合稠油水热裂解降黏规律,证明由于催化改质降低了稠油的黏度。
Three organic sulfonic acid transition metal catalysts were prepared.The viscosity reduction effect of heavy oil was investigated with high temperature and high pressure reaction kettle.The results showed that the sulfonated organic acid iron catalyst was the best viscosity reducing effect.When the heavy oil content was 250 g,1 g of the catalyst was added,and the amount of reservoir water was m(reservoir water)∶m(heavy oil)=30%,the reaction temperature was 220℃ for 24 h,the liaohe heavy oil viscosity was reduced from 814 00 mPa·S to 3 000 mPa·S,viscosity reduction rate was 96.31%.Four components of heavy oil and non-condensable gas products were detected before and after catalytic viscosity reduction:the saturated content increased by 7.5%,the aromatic content increased by 3.2%,the colloidal content decreased by 8.2%,and the asphaltene content decreased by 2.5%;The products of the non-condensable gas phase contained methane,olefins and carbon dioxide,which conformed to the law of viscosity reduction in heavy oil pyrolysis,and proved that the viscosity of heavy oil was reduced by catalytic modification.
Three organic sulfonic acid transition metal catalysts were prepared.The viscosity reduction effect of heavy oil was investigated with high temperature and high pressure reaction kettle.The results showed that the sulfonated organic acid iron catalyst was the best viscosity reducing effect.When the heavy oil content was 250 g,1 g of the catalyst was added,and the amount of reservoir water was m(reservoir water)∶m(heavy oil)=30%,the reaction temperature was 220℃ for 24 h,the liaohe heavy oil viscosity was reduced from 814 00 mPa·S to 3 000 mPa·S,viscosity reduction rate was 96.31%.Four components of heavy oil and non-condensable gas products were detected before and after catalytic viscosity reduction:the saturated content increased by 7.5%,the aromatic content increased by 3.2%,the colloidal content decreased by 8.2%,and the asphaltene content decreased by 2.5%;The products of the non-condensable gas phase contained methane,olefins and carbon dioxide,which conformed to the law of viscosity reduction in heavy oil pyrolysis,and proved that the viscosity of heavy oil was reduced by catalytic modification.
引文
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[13]景萍,李清彪,韩梅,等.Ni 2+和Sn2+改性的SO2-4/ZrO2固体超强酸催化剂对稠油的降黏性能[J].石油化工,2007,36(3):237-241.
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[16]Belgrave J D M,Moore R G,Ursenbach M G.Comprehensive kinetic models for the aquathermolysis of heavy oils[J].Journal of Canadian Petroleum Technology,1997,36(4):38-44.
[2]段文猛,黄涛涛,王斌,等.稠油油溶性降黏剂NSA的合成及评价[J].现代化工,2014,34(12):58-61.
[3]包木太,崔东阳,梁生康,等.鼠李糖脂生物表面活性剂在稠油降黏中的应用初探[J].现代化工,2009,29(S2):138-140.
[4]李美蓉,向浩,马济飞.特稠油乳化降黏机理研究[J].燃料化学学报,2006,34(2):175-178.
[5]王学忠,杨元亮,席伟军.油水过渡带薄浅层特稠油微生物开发技术---以准噶尔盆地西缘春风油田为例[J].石油勘探与开发,2016,43(4):630-635.
[6]杨亚东,杨兆中,甘振维,等.掺稀采油在塔河油田的应用研究[J].西南石油大学学报:自然科学版,2006,28(6):53-55.
[7]Hyne J B.Synopsis report No.50,aquathermolysis[J].Alberta:AOSTRA Contracts,1986.
[8]Clark P D,Hyne J B.Studies on the chemical reactions of heavy oils under steam stimulation condition[J].Aostra JRes,1990,29(6):29-39.
[9]Aldridge C L,Bearden Jr R.Hydroconversion of coal in a hydrogen donor solvent with an oil-soluble catalyst:US,4077867[P].1978-3-7.
[10]范洪富,刘永建,赵晓非,等.金属盐对辽河稠油水热裂解反应影响研究[J].燃料化学学报,2001,29(5):430-433.2.
[11]唐晓东,邓刘扬,李晶晶,等.稠油催化改质降黏的实验研究[J].精细化工,2016,33(6):699-702.
[12]张博,刘永建,赵法军,等.注蒸汽条件下稠油催化改质降黏实验[J].新疆石油地质,2011,32(5):501-503.
[13]景萍,李清彪,韩梅,等.Ni 2+和Sn2+改性的SO2-4/ZrO2固体超强酸催化剂对稠油的降黏性能[J].石油化工,2007,36(3):237-241.
[14]李伟,朱建华,齐建华.纳米Ni催化剂在超稠油水热裂解降黏中的应用研究[J].燃料化学学报,2007,35(2):176-180.
[15]樊泽霞,王腾飞,何玉海.离子液体对稠油的改质降黏作用影响因素研究[J].燃料化学学报,2009,37(6):690-693.
[16]Belgrave J D M,Moore R G,Ursenbach M G.Comprehensive kinetic models for the aquathermolysis of heavy oils[J].Journal of Canadian Petroleum Technology,1997,36(4):38-44.