Techno-economic assessment of biopolymer production from methane and volatile fatty acids: effect of the reactor size and biomass concentration on the poly(3-hydroxybutyrate-co-3-hydroxyvalerate) selling price.

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  • Additional Information
    • Source:
      Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam, Elsevier.
    • Subject Terms:
      Polyesters* ; Biomass* ; Methane*/analysis ; Bioreactors* ; Fatty Acids, Volatile*/analysis ; Polyhydroxybutyrates*; Biopolymers
    • Abstract:
      Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) is a biobased and biodegradable polymer that could efficiently replace fossil-based plastics. However, its widespread deployment is slowed down by the high production cost. In this work, the techno-economic assessment of the process for producing poly(3-hydroxybutyrate-co-3-hydroxyvalerate) from low-cost substrates, such as methane and valeric acid derived from the anaerobic digestion of organic wastes, is proposed. Several strategies for cost abatement, such as the use of a mixed consortium and a line for reagent recycling during downstream, were adopted. Different scenarios in terms of production, from 100 to 100,000 t/y, were analysed, and, for each case, the effect of the reactor volume (small, medium and large size) on the selling price was assessed. In addition, the effect of biomass concentration was also considered. Results show that the selling price of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) is minimum for a production plant with 100,000 t/y capacity, accounting for 18.4 €/kg, and highly influenced by the biomass concentration since it can be reduced up to 8.6 €/kg by increasing the total suspended solids from 5 to 30 g/L, This adjustment aligns the breakeven point of PHBV with the reported average commercial price.
      Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
      (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
    • Contributed Indexing:
      Keywords: Biopolymer; Economic optimization; Poly(3-hydroxybutyrate-co-3-hydroxyvalerate); Sustainable production; Techno-economic analysis
    • Accession Number:
      0 (Polyesters)
      0 (poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate))
      OP0UW79H66 (Methane)
      0 (Fatty Acids, Volatile)
      0 (Biopolymers)
      0 (Polyhydroxybutyrates)
    • Publication Date:
      Date Created: 20240424 Date Completed: 20240507 Latest Revision: 20240507
    • Publication Date:
      20240507
    • Accession Number:
      10.1016/j.scitotenv.2024.172599
    • Accession Number:
      38657807