Publications in International Journals / Series (Article (International))

Insights into the economic viability of cellulases recycling on bioethanol production from recycled paper sludge

  • Bioresource Technology, 264, 347-355, 2018

Publisher: Elsevier


The economics of Recycled Paper Sludge conversion into ethanol was here assessed with emphasis on integrating a cellulase recycling system. Without cellulases recycling this process presented positive economic outputs (payback period of 7.85 years; 10.90 Million US$ of accumulated NPV) despite the modest ethanol titers. Recycling both free and solid-bound enzymes allowed considerable savings of enzyme but also an increase on annual costs (0.88 %), resulting on a superior economic output: payback period decreased to 7.25 years; accumulated NPV increased to 14.44 Million US$. Recycling exclusive ...

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