稠油催化改质降粘的实验研究

Experimental Study on Catalytic Upgrading and Viscosity Reduction of Heavy Oil

摘要:

实验制备了4种油溶性过渡金属石油酸盐催化剂，室内进行了稠油催化改质降黏实验，评选出了最优催化剂及其最佳反应条件。结果表明，在石油酸铁用量为0.12%、改质温度365℃、改质时间40min的条件下，可使鲁克沁稠油黏度从17460mPa?s降至125mPa?s，降黏率达99.28%。改质稠油饱和分增加17.61%了，胶质减少18.55%了，350℃、500℃以前馏分分别增加9.82%、29.45%。改质油轻组分的增加便于稠油降粘和管输，降低了能耗。

Abstract:

4 kinds of oil soluble transition metal catalysts were prepared， and the experiment was carried out to upgrade and reduce the viscosity of heavy oil， and the optimal catalyst and the best reaction conditions were selected. The results showed that ，in the condition that consumption of petroleum acid iron for 0.12%， the upgrading temperature 365℃， reaction time 40min， the viscosity of Lukeqin heavy oil fell to 125mPa?s from 17460mPa?s， the viscosity reduction rate of 99.28% . Compared with unupgraded heavy oil，the content of saturates of the upgraded oil increased by 17.61%，the content of resins decreased by 18.55%，the light fraction below 350℃ and 500℃ increased 9.82% and 29.45%, respectively. Increasing of light components of the upgraded oil is easy for pipeline transportation of heavy oil， and reduces the energy consumption.