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A. Tokarska

Hydrorefining of the liquid products obtained in the pyrolysis of waste polyolefins.

Part I. Refining of liquid products on the laboratory scale

Polimery 2011, No 6, 484


DOI: dx.doi.org/10.14314/polimery.2011.484

Summary

The results of hydrorefining of the liquid products obtained in the pyrolysis of waste polyolefins have been presented. The waste polyolefin pyrolytic products were composed of 40—50 wt. % of unsaturated components (Table 1). Hydrorefining was performed over an industrial CoMo catalyst while hydrogenation was carried out in the presence of a NiCr catalyst (Table 2). The highest yields in the hydrorefining process were obtained at 300 °C under 6—8 MPa pressure (Figs. 2—4). About 80 % of the unsaturated components underwent saturation. Coke-oven gas and methanol have also been found to be possible hydrogen donors in the hydrorefining process (Fig. 6). The hydrorefined products can be applied as non-sulfuric components in engine fuels.


Key words: waste polyolefins, pyrolysis, liquid products, hydrorefining, hydrogenation


e-mail: anna.tokarska@polsl.pl

A. Tokarska (87.6 KB)
Hydrorefining of the liquid products obtained in the pyrolysis of waste polyolefins. Part I. Refining of liquid products on the laboratory scale