07.01.19
US Patent No. 10,308,896 B2 (Jeffrey John Scheibel, Phillip Kyle Vinson, Scott Leroy Cron, Thomas Earl Williams); The Procter & Gamble Company has patented a method for producing paraffin from waste plastic feedstock and kerosene and/or another source(s) of hydrocarbons. The method entails providing a first feed stream comprised of kerosene and/or another source(s) of hydrocarbons; pre-fractionating the first feed stream to produce a first heart cut paraffin stream comprising paraffins in a heart cut range, wherein the first heart cut paraffin stream comprises C9-C19 hydrocarbons; combining the first heart cut paraffin stream with a second feed stream comprised of waste plastic feedstock to form a combined stream; hydrotreating the combined stream; and fractionating the hydrotreated stream to remove paraffins that are heavier and/or lighter than the heart cut range to form a second heart cut paraffin stream.