Batch pyrolysis was a valuable process of assessing the potential of recovering and characterising products from hazardous waste materials. This research explored the pyrolysis of hydrocarbon-rich refinery residue. from crude oil processes. in a 1200 L electrically-heated batch retort. https://www.spidertattooz.com/Patchwork-Barn-Quilt-Pattern-by-Edyta-Sitar/