中国石油大学学报（自然科学版）2011，Vol.35Issue(1)：164-168,173,6.DOI:10.3969/j.issn.1673-5005.2011.01.033
纳米镍催化剂对胜利超稠油水热裂解降黏的影响
Influence of nano-nickl catalyst on viscosity reduction of Shengli extra-heavy oil by aquathermolysis
摘要
Abstract
Nano-nickel catalyst was synthesized by microemulsion method, characterized by transmission electron microscopy (TEM), and then used in the extra-heavy oil aquathermolysis at 200 ℃. The physicochemical properties of heavy oil both before and after reaction were analyzed by using gas chromatography (GC), elemental analysis (EL), molecular weight analysis ( VPO), fourier transform infrared (FT-IR). The results show that the viscosity reduction ratio of extra-heavy oil reaches 90. 36％, the contents of resin and asphaltene decrease, and the average moleculars of heavy oil and asphahene reduce after the catalytic aquathermolysis. The H-C ratio in heavy oil, resin and asphaltene increases. The contents of sulfur and nitrogen decrease, but oxygen content increases in the heavy oil after treatment. A lot of polymerize reactions occurred in the course of aquathermolysis, and the nano-nickel catalyst not only slowed down the polymerize reactions but also speeded up the aquathermolysis. The pyrolysis of asphahene plays a very important role in synergism reactions between high temperature water and nano-nickel catalyst during the catalytic aquathermolysis, and produces more substances such as alcohol, carboxylate and fatty acid which results in the viscosity reduction of heavy oil.关键词
稠油/水热裂解/纳米镍/降黏分类
能源科技引用本文复制引用
吴川,雷光伦,姚传进,盖平原,曹嫣镔,李啸南..纳米镍催化剂对胜利超稠油水热裂解降黏的影响[J].中国石油大学学报（自然科学版）,2011,35(1):164-168,173,6.基金项目
中国石油化工集团公司先导性科技项目(P08057) （P08057）
中国石油大学(华东)研究生创新基金项目 （华东）
