The Process Research of Removing Acid From Heavy Oil Using Solvent Method With Ultrasonic Assisted
WU Bao-hua;MU Hong-jing;key Laboratory of Green Chemical Technology,College of Heilongjiang Province,School of Chemical ang Environmental Engineering,Harbin University of Science and Technology;
In order to improve the removal rate of acid from heavy oil with the solvent method,in this study,ultrasonic assisted method was used to investigate the deacidification of heavy oil using 95% ethanol as solvent.Simultaneously,uniform design method was applied to optimize the deacidification process according to four important condition parameters( ultrasonic power,deacidification time,deacidification temperature and solvent-to-oil ratio). The optimum deacidification process conditions were determined as follow: ultrasonic power is 400 W,deacidification time is 7 min,deacidification temperature is 70℃ and the solvent-to-oil ratio is 0. 3( m L·g- 1). under that condition,the acid removal rate from heavy oil was up to 70. 35%. The ultrasound-assisted solvent method exhibits a lot of advantages in heavy oil deacidification process,such as,short deacidification time,low deacidification temperature,high deacidification rate and simple post-processing,which possesses potential prospect for industrialization.
【CateGory Index】： TE624