埕北稠油催化改质降粘实验研究

Experimental research on viscosity reduction of offshore heavy oil by catalytic upgrading

室内评价埕北稠油催化改质降粘的实验效果,筛选出最优改质降粘催化剂,考察催化剂用量、反应温度、反应时间、供氢剂种类及用量对稠油改质降粘的影响。结果表明,采用有机酸锰催化剂和甲苯供氢剂,在催化剂用量为稠油质量的0.10%、反应温度240℃、反应时间24 h、水油质量比1∶3和甲苯用量为稠油质量的5%条件下,稠油粘度由2 740 mPa.s降至780 mPa.s,改质降粘率达到71.5%。

Indoor experiments on viscosity reduction of offshore heavy oil by catalytic upgrading were carried out in order to screen out the optimal upgrading catalyst. The influence of catalyst dosage, reaction temperature ,reaction time, and the types and dosage of hydrogen donor was investigated. The results showed that using manganese organic acid as the catalyst and toluene as the hydrogen donor, the viscosity of cracked heavy oil decreased from 2 740 mPa s to 780 mPa s and the viscosity-reducing rate of 71.5% was attained under the optimum condition as follows： catalyst dosage 0. 10%, reaction temperature 240 ℃, reaction time 24 h,water/oil mass ratio 1 ： 3, and hydrogen donor toluene dosage 5 %.