Methods for producing alkylbenzenes, paraffins, olefins and oxo alcohols from waste plastic feedstocks

A method for producing olefin from waste plastic feedstock and kerosene and/or another source(s) of hydrocarbons comprising the steps of:

• providing a first feed stream comprising kerosene and/or another source(s) of hydrocarbons;
• pre-fractionating the first feed stream by separating and removing both a light hydrocarbon stream comprising C8 and lighter hydrocarbons, and a heavier hydrocarbon stream, from hydrocarbons that are selected for further processing, thereby producing a first heart cut paraffin stream comprising C10-C18 hydrocarbons;
• hydrotreating a second feed stream comprising waste plastic feedstock comprising C10-C18 hydrocarbons;
• combining the first heart cut paraffin stream with the second feed stream to form a combined stream;
• hydrotreating the combined stream;
• 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;
• dehydrogenating the second heart cut paraffin stream to form a stream comprising olefins;
• purifying the stream comprising the olefins;
• alkylating the stream comprising the olefins with benzene to produce an alkylbenzene;
• and
• sulfonating the alkylbenzene to form an alkylbenzene sulfonate surfactant.