Effect of the conditions of the coliquefaction of Ukrainian sulfur coals and polyolefins on the yield and composition of products

The coliquefaction of sulfur lignites and bituminous coals from Ukraine with polyethylene and polypropylene wastes was studied. The gas environment and the nature of catalysts were varied. The degree of conversion of the mixture and the yields of oils, asphaltenes, preasphaltenes, and volatile matter from the residues of coliquefaction were determined. It was hypothesized that oils were mainly formed from coals, especially in the mixtures of coals with polyethylene, whereas asphaltenes and preasphaltenes were formed from polyolefins.