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Techno-economic evaluation of a biorefinery applying food waste for sophorolipid production – A case study for Hong Kong

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Abstract
This study evaluates the techno-economic feasibility of sophorolipid (SL) production process that co-utilizes foodwaste, glucose and oleic acid as substrates. Two variables are considered in terms of (a) Plant construction:Purchasing equipment either from the US or Mainland China and (b) Production: to produce SL crystals (about97% active) or a concentrated SL liquid/syrup (about 78% active). Hence, four scenarios are generated: ScenarioI: equipment made in the USA + SL crystals; Scenario II: equipment made in the USA + SL syrup; Scenario III:equipment made in China + SL crystals; Scenario IV: equipment made in China + SL syrup. It is found that allscenarios are economically feasible and Scenario I has the highest net profit. Scenario III has the highest internalrate of return, net present value and the shortest payback period at a 7% discount rate. Finally, comparison offood waste-related techno-economic studies was conducted.
Keywords
Renewable Energy, Sustainability and the Environment, Environmental Engineering, Waste Management and Disposal, Bioengineering, General Medicine

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MLA
Wang, Huaimin, et al. “Techno-Economic Evaluation of a Biorefinery Applying Food Waste for Sophorolipid Production – A Case Study for Hong Kong.” Bioresource Technology, vol. 303, ELSEVIER SCI LTD, 2020.
APA
Wang, H., Tsang, C.-W., To, M. H., Kaur, G., Roelants, S., Stevens, C., … Lin, C. S. K. (2020). Techno-economic evaluation of a biorefinery applying food waste for sophorolipid production – A case study for Hong Kong. Bioresource Technology, 303.
Chicago author-date
Wang, Huaimin, Chi-Wing Tsang, Ming Ho To, Guneet Kaur, Sophie Roelants, Christian Stevens, Wim Soetaert, and Carol Sze Ki Lin. 2020. “Techno-Economic Evaluation of a Biorefinery Applying Food Waste for Sophorolipid Production – A Case Study for Hong Kong.” Bioresource Technology 303.
Chicago author-date (all authors)
Wang, Huaimin, Chi-Wing Tsang, Ming Ho To, Guneet Kaur, Sophie Roelants, Christian Stevens, Wim Soetaert, and Carol Sze Ki Lin. 2020. “Techno-Economic Evaluation of a Biorefinery Applying Food Waste for Sophorolipid Production – A Case Study for Hong Kong.” Bioresource Technology 303.
Vancouver
1.
Wang H, Tsang C-W, To MH, Kaur G, Roelants S, Stevens C, et al. Techno-economic evaluation of a biorefinery applying food waste for sophorolipid production – A case study for Hong Kong. Bioresource Technology. 2020;303.
IEEE
[1]
H. Wang et al., “Techno-economic evaluation of a biorefinery applying food waste for sophorolipid production – A case study for Hong Kong,” Bioresource Technology, vol. 303, 2020.
@article{8647016,
  abstract     = {{This study evaluates the techno-economic feasibility of sophorolipid (SL) production process that co-utilizes foodwaste, glucose and oleic acid as substrates. Two variables are considered in terms of (a) Plant construction:Purchasing equipment either from the US or Mainland China and (b) Production: to produce SL crystals (about97% active) or a concentrated SL liquid/syrup (about 78% active). Hence, four scenarios are generated: ScenarioI: equipment made in the USA + SL crystals; Scenario II: equipment made in the USA + SL syrup; Scenario III:equipment made in China + SL crystals; Scenario IV: equipment made in China + SL syrup. It is found that allscenarios are economically feasible and Scenario I has the highest net profit. Scenario III has the highest internalrate of return, net present value and the shortest payback period at a 7% discount rate. Finally, comparison offood waste-related techno-economic studies was conducted.}},
  articleno    = {{122852}},
  author       = {{Wang, Huaimin and Tsang, Chi-Wing and To, Ming Ho and Kaur, Guneet and Roelants, Sophie and Stevens, Christian and Soetaert, Wim and Lin, Carol Sze Ki}},
  issn         = {{0960-8524}},
  journal      = {{Bioresource Technology}},
  keywords     = {{Renewable Energy,Sustainability and the Environment,Environmental Engineering,Waste Management and Disposal,Bioengineering,General Medicine}},
  language     = {{eng}},
  publisher    = {{ELSEVIER SCI LTD}},
  title        = {{Techno-economic evaluation of a biorefinery applying food waste for sophorolipid production – A case study for Hong Kong}},
  url          = {{http://dx.doi.org/10.1016/j.biortech.2020.122852}},
  volume       = {{303}},
  year         = {{2020}},
}

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