论文部分内容阅读
通过测试稠油粘度及稠油的组成,筛选了过氧化叔丁醚(t-BuOOH)作为稠油氧化剂,将钼合乙酰丙酮(MOA)与t-BuOOH、路易斯酸复合,对南阳油田EX35稠油进行了氧化降解反应;正交试验讨论了催化体系组成对反应后稠油粘度、酸值的影响。采用MOA/t-BuOOH/路易斯酸体系对含水20%的稠油进行催化降粘,并考察了温度和碱对油水体系粘度的影响。TLC-FID分析证明,稠油中的胶质减少20%,芳烃与饱和烃的量分别增加38.9%和13.2%,沥青质增加2.5%;稠油粘度由原始的58Pa.s下降到27Pa.s酸值由2.22mgKOH/g增加到13.8mgKOH/g。在120℃恒温16h后的稠油中加入0.5%～1.2%碱,粘度降到800mPa.s,降粘率99%以上。
By testing the viscosity of heavy oil and the composition of heavy oil, t-BuOOH was selected as the heavy oil oxidant, and the molybdenum acetylacetone (MOA) was compounded with t-BuOOH and Lewis acid, Oil was oxidatively degraded. The effects of the catalytic system composition on the viscosity and acid value of heavy oil after the reaction were discussed by orthogonal experiments. The viscous viscosity of heavy oil containing 20% water was catalyzed by MOA / t-BuOOH / Lewis acid system. The effects of temperature and alkali on the viscosity of oil-water system were investigated. TLC-FID analysis showed that the viscosities of heavy oil decreased by 20%, the amounts of aromatic hydrocarbons and saturated hydrocarbons increased by 38.9% and 13.2% respectively, and the asphaltenes increased by 2.5%. Viscosity of heavy oil decreased from 58Pa.s to 27Pa.s The acid value increased from 2.22 mgKOH / g to 13.8 mgKOH / g. After heated at 120 ℃ for 16h, 0.5% ~ 1.2% alkali was added, the viscosity dropped to 800mPa.s and the viscosity reduction rate was over 99%.