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Importance of chemical pretreatment for bioconversion of lignocellulosic biomass

Behera, Shuvashish ; Arora, Richa ; Nandhagopal, N. ; Kumar, Sachin

Renewable & sustainable energy reviews, 2014-08, Vol.36, p.91-106 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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  • Título:
    Importance of chemical pretreatment for bioconversion of lignocellulosic biomass
  • Autor: Behera, Shuvashish ; Arora, Richa ; Nandhagopal, N. ; Kumar, Sachin
  • Assuntos: Applied sciences ; Biomass ; Cellulose ; Energy ; Exact sciences and technology ; Inhibitors ; Lignocellulosic biomass ; Natural energy ; Pretreatment
  • É parte de: Renewable & sustainable energy reviews, 2014-08, Vol.36, p.91-106
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Lignocelluloses are often a major or sometimes the sole components in different waste streams from various sources such as industries, forestry, agriculture and municipalities. It represents an as-of-yet untapped source of fermentable sugars for significant industrial use. Many physico-chemical, structural and compositional factors hinder the hydrolysis of components present in the biomass to sugars and other organic compounds that can later be converted into fuels. During the past few years, a large number of chemical pretreatment methods including lime, acid, steam explosion, sulfur dioxide explosion, ammonia fiber explosion, ionic liquid and others have been developed for efficient pretreatment of biomass. Many pretreatment methods have shown high sugar yields i.e. more than 90% of the theoretical yield from lignocelluloses. In this review, we discuss various chemical pretreatment processes, feasibility of the processes at industrial scale in terms of the mechanisms involved, advantages, disadvantages and economic assessment. It is not possible to define the best pretreatment method as it depends on many factors such as type of lignocellulosic biomass, process parameters, environmental impact, economical feasibility, etc. However, some of these chemical pretreatments have disadvantages such as formation of inhibitory compounds especially furfural and 5-hydroxyl methyl furfural (HMF).
  • Editor: Kidlington: Elsevier Ltd
  • Idioma: Inglês
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