Trends and advances in conversion of lignocellulosic biomass to biobutanol: Microbes, bioprocesses and industrial viability

Lalitha Devi Gottumukkala, Kate Haigh and Johann Görgens

Renewable and Sustainable Energy Reviews, 2017, vol. 76, issue C, 963-973

Abstract: Biobutanol has gained attention as an alternative renewable transportation fuel for its superior fuel properties and widespread applications in chemical industry, primarily as a solvent. Conventional butanol fermentation has drawbacks that include strain degeneration, end-product toxicity, by-product formation, low butanol concentrations and high substrate cost. The complexity of Clostridium physiology and close control between sporulation phase and ABE fermentation has made it demanding to develop industrially potent strains. In addition to the isolation and engineering of superior butanol producing bacteria, the development of advanced cost-effective technologies for butanol production from feedstock like lignocellulosic biomass has become the primary research focus. High process costs associated with complex feedstocks, product toxicity and low product concentrations are few of the several bioprocess challenges involved in biobutanol production. The article aims to assess the challenges in lignocellulosic biomass to biobutanol conversion and identify key process improvements that can make biobutanol commercially viable.

Keywords: Biobutanol; Clostridia; Lignocellulosic biomass; ABE fermentation; ABE recovery; Techno-economic analysis (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (6)

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DOI: 10.1016/j.rser.2017.03.030

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