Integrated synthesis, modeling, and assessment (iSMA) of waste-to-resource alternatives towards a circular economy: The case of the chemical recycling of plastic waste management

Pacheco-López, Adrián; Gómez-Reyes, Edward; Graells, Moisés; Espuña, Antonio; Somoza Tornos, A.

doi:10.1016/j.compchemeng.2023.108255

Integrated synthesis, modeling, and assessment (iSMA) of waste-to-resource alternatives towards a circular economy

Title

Integrated synthesis, modeling, and assessment (iSMA) of waste-to-resource alternatives towards a circular economy: The case of the chemical recycling of plastic waste management

Author

Pacheco-López, Adrián (Universitat Politecnica de Catalunya)
Gómez-Reyes, Edward (Universitat Politecnica de Catalunya)
Graells, Moisés (Universitat Politecnica de Catalunya)
Espuña, Antonio (Universitat Politecnica de Catalunya)
Somoza Tornos, A. (TU Delft ChemE/Product and Process Engineering; Universitat Politecnica de Catalunya)

Date

2023

Abstract

The need to transform economic models to implement a circular use of resources is crucial due to the current waste accumulation crisis. New waste-to-resource alternatives are constantly emerging to close material loops; therefore, tools are needed to identify the best synergies to upcycle waste. An approach has been developed to identify and assess waste-to-resource processing routes not currently implemented at the industrial level to valorize waste. The proposed framework consists of several interconnected modules that include ontologies for knowledge management, graph theory and short-path algorithms for the generation of paths and pre-assessment of processes, a Mixed-Integer Linear Programming (MILP) model for superstructure optimization; and the rigorous design, simulation, and optimization exclusively of those alternatives that show the best performance in previous steps. A case study for the treatment of mixed plastic waste reveals chemical recycling and the production of pyrolytic fuels as tentatively favorable options, both environmentally and economically.

Subject

Chemical recycling
Circular economy
Integrated modeling
Plastic waste treatment
Waste-to-resource, Ontologies

To reference this document use:

http://resolver.tudelft.nl/uuid:d7b0b920-1336-437a-99e9-a405eddbc8f3

DOI

https://doi.org/10.1016/j.compchemeng.2023.108255

ISSN

0098-1354

Source

Computers & Chemical Engineering, 175

Part of collection

Institutional Repository