Catalytic depolymerization: Difference between revisions

After initial melting the plastics form very viscous liquids, including gasoline and oil fraction which are valuable raw materials for further use in the petrochemical and energy industries, as a component in the production of fuels. The vapour-gas phase consists of gaseous hydrocarbons such as methane, ethane, ethylene, propane and isopropylene which can be utilized in the process of heating the raw materials as fuel or it can be used to generate electricity in a cogeneration unit. The remaining plastic slowly crystallizes and precipitates as a sediment containing solid residue-carbon.  

The yield of the liquid product is at least 80 % by weight of the incoming waste plastics (60 % of the heavy fraction and 20 % of the light fraction). Gaseous products represent roughly 10 % of the input raw materials and the remaining 10 % consists of solid carbon products.<ref name="ref1" /><ref name="ref2">[https://www.e3s-conferences.org/articles/e3sconf/pdf/2017/02/e3sconf_ef2017_02044.pdf Plastic waste depolymerization as a source of energetic heating oils]</ref>