Study of the Technical-Economic Feasibility of a Pyrolysis/Gasification Plant for the Generation of Liquid Gas Fuels from Plastic Waste

Abstract

Pyrolysis can offer a practical environmental solution for recycling plastic waste, converting it into liquid and gaseous fuels of high commercial value. This article proposed the simulation in Aspen Plus® of a pyrolysis/gasification plant, having plastic residues and residual soybean oils as raw material. The products generated in the gasifier are bio-oil and synthesis gas, which can be converted into ethylene and gasoline in reactors. To calculate the plant’s cost of capital, the Lang Method was used. The economic indicators NPV, IRR, PI, and Payback determined the project’s viability. The works show that the current scenario studied has economic viability, but better results can be achieved with increasing project maturity.