Liquid Fuels From Ethylene Tar by Two-stage Catalytic Hydroprocessing

Liquid Fuels From Ethylene Tar by Two-stage Catalytic Hydroprocessing

Type	Journal Article
Author	T. Kan
Author	H. Wang
URL	http://dx.doi.org/10.1080/15567036.2011.613892
Volume	37
Issue	21
Pages	2317-2322
Publication	Energy Sources, Part A: Recovery, Utilization, and Environmental Effects
Date	November 2, 2015
Abstract	Researchers conducted two-stage hydroprocessing of ethylene tar on bench-scale equipment under typical reaction conditions of hydrogen pressure of 6 MPa, liquid hourly space velocity of 0.8 h–1, H2/oil volume ratio of 1,600, first-stage temperature of 360°C, and second-stage temperature of 380°C. Alumina-supported molybdenum-nickel (Mo-Ni) and tungsten-nickel (W-Ni) catalysts, which they prepared using combinational technologies of ultrasonic-assisted impregnation and temperature-programming, were filled in the first and second stages, respectively. They analyzed gasoline and diesel fractions separated from the produced oil. Results revealed that the ethylene tar can be considerably upgraded through two-stage catalytic hydroprocessing. Fuels with sulfur and nitrogen contents of less than 10 and 2 ppm, respectively, were obtained.