| abstract |
A method for producing olefins and aromatics, the step of converting plastic into a hydrocarbon product having a gas phase and a liquid phase in a pyrolysis unit, a hydrocarbon gas stream containing the gas phase and a liquid phase Separating a hydrocarbon product into a hydrocarbon liquid stream comprising, and supplying a hydrocarbon gas stream to a gas steam cracker to produce a gas steam cracker product containing olefins, wherein the gas steam cracker is generated. A step in which the amount of olefins in the product is greater than in the hydrocarbon gas stream; Supplying a first fraction to a liquid steam cracker to produce a liquid steam cracker product containing olefins and aromatics, Cracker olefins content in the product is greater steps than the in one fraction, and a step of recycling the second fraction to the pyrolysis unit. |