In today's modern world, plastics provide a fundamental
contribution to all activities such as agriculture, automobile
industry, electricity and electronics, building materials, packing…
Increased production of plastic leads to generation of
enormous amounts of waste. Most of these plastics are still
disposed of by landfill. Incineration of plastics is not the way
to increase their value and the consequent energy recovery is
not considered fully acceptable by current policies. Upgrading
of plastic waste is a necessity both for environmental
protection and for sustainable development. From these
points of view, addition of plastic waste to feedstock of natural
organic materials thermal processes can be a perspective for
their conversion into valuable products [1–4]. Much attention
has been directed towards the use of plastic waste and its
combination with oil shale. Co-processing techniques have
received much attention in recent years because they should
be considered as a beneficial process of recovering valuable
hydrocarbons and recycling the waste materials with advantageous
environmental and economic effects.