Catalytic coprocessing of low density polyethylene with lignite using Ni-Mo on alumina

Abstract

This research is a study of catalytic coprocessing of low density polyethylene with lignite on Nickel-Molybdenum on alumina catalyst, and carried out in a high pressure microreactor. Several parameters was varied for determination of the optimum condition, such as, range of reaction temperature of 400-450℃, pressure of hydrogen, 30-75 kg/cm2, reaction time, 30-180 min. and ratio of low density polyethylene to lignite,15:0.5-15:5. The results from experiments show that optimum condition was reaction temperature 420℃, pressure of hydrogen 60 kg/cm2, reaction time 60 min. and ratio of plastic to lignite coal, 15:1. The compositions of oil product at the optimum condition were 44.3 % of naphtha, 9.6 % of kerosene, 6.3% of light gas oil, 3.2 % of heavy gas oil and 4.7 % of long residue and 68.1 % of yield.