Effect of introducing tyre pyrolysis oil into two-stage coal liquefaction

Abstract

Publisher Summary This chapter discusses the effect of introducing tyre pyrolysis oil (TPO) into two-stage coal liquefaction. TPO can be coprocessed without any severe detriment in solvent ability measured by the percentage dissolution of coal. The introduction of TPO did not appear to reduce solvent capability in comparison to TPO+ at upto 20% incorporation. The introduction of TPO into the second stage at the right proportions eliminates any reduction in dissolution ability increasing light distillate yields and provides the most beneficial option in solvent augmentation with TPO in two-stage coal liquefaction. A high degree of success has been achieved with coal/tyre coprocessing with the possibilities of the carbon black playing a catalytic role and enhancing extraction. TPOs contain significant amounts of phenanthrene, substituted phenanthrenes, and very little hydrogen donor compounds.