Alternative Integrated Ethanol, Urea, and Acetic Acid Processing Routes Employing CCU: A Prospective Study through a Life Cycle Perspective

Denis da Silva Miranda (), Luise Prado Martins, Beatriz Arioli de Sá Teles, Isadora L. C. Cunha, Natália de Almeida Menezes, Hugo Sakamoto and Luiz Kulay
Additional contact information
Denis da Silva Miranda: Chemical Engineering Department, Polytechnic School, University of São Paulo (USP), Av. Prof. Lineu Prestes, 580—Bloco 18, Sao Paulo 05508-000, Brazil
Luise Prado Martins: Chemical Engineering Department, Polytechnic School, University of São Paulo (USP), Av. Prof. Lineu Prestes, 580—Bloco 18, Sao Paulo 05508-000, Brazil
Beatriz Arioli de Sá Teles: Chemical Engineering Department, Polytechnic School, University of São Paulo (USP), Av. Prof. Lineu Prestes, 580—Bloco 18, Sao Paulo 05508-000, Brazil
Isadora L. C. Cunha: Chemical Engineering Department, Polytechnic School, University of São Paulo (USP), Av. Prof. Lineu Prestes, 580—Bloco 18, Sao Paulo 05508-000, Brazil
Natália de Almeida Menezes: Chemical Engineering Department, Polytechnic School, University of São Paulo (USP), Av. Prof. Lineu Prestes, 580—Bloco 18, Sao Paulo 05508-000, Brazil
Hugo Sakamoto: School of Electrical and Computer Engineering, Universidade Estadual de Campinas, Campinas 13083-852, Brazil
Luiz Kulay: Chemical Engineering Department, Polytechnic School, University of São Paulo (USP), Av. Prof. Lineu Prestes, 580—Bloco 18, Sao Paulo 05508-000, Brazil

Sustainability, 2023, vol. 15, issue 22, 1-23

Abstract: Despite the importance of inputs such as urea, ethanol, and acetic acid for the global production of food, energy, and chemical bases, manufacturing these substances depends on non-renewable resources, generating significant environmental impacts. One alternative to reducing these effects is to integrate production processes. This study compares the cumulative environmental performance of individual production routes for ethanol, urea, and acetic acid with that of an integrated complex designed based on Industrial Ecology precepts. Life Cycle Assessment was used as a metric for the impact categories of Global Warming Potential (GWP) and Primary Energy Demand (PED). The comparison occurred between the reference scenario, which considers individual processes, and six alternative integrated arrangements that vary in the treatment given to a stream concentrated in fuels generated in the Carbon Capture and Usage system that serves the processing of acetic acid. The study showed that process integration is recommended in terms of PED, whose contributions were reduced by 46–63% compared to stand-alone processes. The impacts of GWP are associated with treating the fuel stream. If it is treated as a co-product and environmental loads are allocated in terms of energy content, gains of up to 44% can be expected. On the other hand, if the stream is a waste, the complex’s GWP becomes more aggressive than the baseline scenario by 66%.

Keywords: life cycle assessment; carbon capture usage; process integration; industrial ecology; environmental performance (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/22/15937/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/22/15937/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:22:p:15937-:d:1280018

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().