The use of a tartaric-Co(II) complex in the catalytic aquathermolysis of heavy oil

作者:Song, Shao-Fu; Guo, Zhen; Bai, Yun; Gu, Xue-Fan; Chen, Gang*; Zhang, Jie; Li, Bian-qing; Zhang, Zhi-Fang
来源:Petroleum Science and Technology, 2017, 35(7): 661-666.
DOI:10.1080/10916466.2016.1273239

摘要

A tartaric-Co(II) complex was synthesized and then used in aquathermolysis of heavy oil as a catalyst at relatively low temperature, 180 degrees C. The effects of water amount and catalyst concentration on aquathermolysis were investigated in this work. The crude oil before and after aquathermolysis was fully characterized, and the mechanism of viscosity reduction was discussed at last. The results show that heavy oil can undergo aquathermolysis in the present of water and the tartaric-Co(II) complex at low temperature. Besides, the catalytic aquathermolysis could not only decrease the viscosity of heavy oil, but also remove some heteroatoms, finally making the flow properties better and the quality upgraded.