LAPSE:2024.1619
Published Article
LAPSE:2024.1619
Enhancing PHAs Production Sustainability: Biorefinery Design through Carbon Source Diversity
Fernando D. Ramos, Matías H. Ramos, Vanina Estrada, M. Soledad Diaz
August 16, 2024. Originally submitted on July 9, 2024
In this work, we propose a Mixed Integer Nonlinear Programming (MINLP) model to determine the optimal sustainable design of a poly(hydroxyalkanoate)s (PHAs) production plant configuration and its heat exchanger network (HEN). The superstructure-based optimization model considers different carbon sources as raw material: glycerol (crude and purified), corn starch, cassava starch, sugarcane sucrose and sugarcane molasses. The PHA extraction section includes four alternatives: the use of enzymes, solvent, surfactant-NaOCl or surfactant-chelate. Model constraints include detailed capital cost for equipment, mass and energy balances, product specifications and operating bounds on process units. To assess the feasibility of the PHA plant, we considered the Sustainability Net Present Value (SNPV) as the objective function, a multi-criteria sustainability metric that considers economic, environmental and social pillars. The Net Present Value (NPV) was also calculated. SNPV metric provides useful insights on sustainable PHA production, as the optimal technological route results in the sugarcane-surfactant-chelate option, rather than the sugarcane-enzyme pathway which proves more economically profitable, but with higher environmental impacts. Moreover, inclusion of HEN design significantly improves the objective function value, mainly due to a 24% carbon footprint impact reduction.
Keywords
Biomass, Environment, Modelling, Optimization, Process Design
Suggested Citation
Ramos FD, Ramos MH, Estrada V, Diaz MS. Enhancing PHAs Production Sustainability: Biorefinery Design through Carbon Source Diversity. (2024). LAPSE:2024.1619
Author Affiliations
Ramos FD: Planta Piloto de Ingeniería Química (PLAPIQUI CONICET-UNS), Camino La Carrindanga km. 7, Bahía Blanca, Argentina; Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
Ramos MH: Planta Piloto de Ingeniería Química (PLAPIQUI CONICET-UNS), Camino La Carrindanga km. 7, Bahía Blanca, Argentina; Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
Estrada V: Planta Piloto de Ingeniería Química (PLAPIQUI CONICET-UNS), Camino La Carrindanga km. 7, Bahía Blanca, Argentina; Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
Diaz MS: Planta Piloto de Ingeniería Química (PLAPIQUI CONICET-UNS), Camino La Carrindanga km. 7, Bahía Blanca, Argentina; Departamento de Ingeniería Química, Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
Journal Name
Systems and Control Transactions
Volume
3
First Page
868
Last Page
875
Year
2024
Publication Date
2024-07-10
Version Comments
DOI Assigned
Other Meta
PII: 0868-0875-676231-SCT-3-2024, Publication Type: Journal Article
Record Map
Published Article

LAPSE:2024.1619
This Record
External Link

https://doi.org/10.69997/sct.150748
Article DOI
Download
Files
[Download 1v2.pdf] (447 kB)
Aug 16, 2024
Final Version
License
CC BY-SA 4.0
Meta
Record Statistics
Record Views
161
Version History
[v2] (DOI Assigned)
Aug 16, 2024
[v1] (Original Submission)
Jul 9, 2024
 
Verified by curator on
Aug 16, 2024
This Version Number
v2
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2024.1619
 
Record Owner
PSE Press
Links to Related Works
Directly Related to This Work
Article DOI