Coliquefaction studies of waste polymers and lignite influenced by acidic and oil-soluble catalysts

A detailed study of postconsumer polymer coliquefaction with lignite influe nced by two acidic and two oil-soluble catalyst precursors is presented in this article. The conversion of reacting solids into gaseous and liquid pro ducts was determined in four initial series of coprocessing experiments per formed with and without catalysts on a suite of four heavy organic solvents . Based on the results obtained, two newer series of experiments were also designed and carried out, aimed at the optimization of this complex transfo rmation using this time lignite oxidatively pretreated. It was found that t he mentioned hydroconversion is a promising way of hydrocarbon synthesis an d that oxidatively pretreated lignite proved superior to the raw material. It was also found that the oil-soluble catalysts employed indicated a parti cularly noticeable activity increase, influencing, thus, the efficacy of th e conversions achieved. (C) 2000 John Wiley & Sons, Inc.