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Responses of biomass briquetting and pelleting to water-involved pretreatments and subsequent enzymatic hydrolysis

Li, Yang ; Li, Xiaotong ; Shen, Fei ; Wang, Zhanghong ; Yang, Gang ; Lin, Lili ; Zhang, Yanzong ; Zeng, Yongmei ; Deng, Shihuai

Bioresource technology, 2014-01, Vol.151, p.54-62 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

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Título:
Responses of biomass briquetting and pelleting to water-involved pretreatments and subsequent enzymatic hydrolysis
Autor: Li, Yang ; Li, Xiaotong ; Shen, Fei ; Wang, Zhanghong ; Yang, Gang ; Lin, Lili ; Zhang, Yanzong ; Zeng, Yongmei ; Deng, Shihuai
Assuntos: Auto-swelling ; Biological and medical sciences ; Biomass ; Biomass densification ; Biotechnology ; Biotechnology - methods ; Briquetting ; Cellulase - metabolism ; Conversion ; Densification ; Diluted-NaOH pretreatment ; Enzymatic hydrolysis ; Fundamental and applied biological sciences. Psychology ; Glucans - isolation & purification ; Hydrolysis - drug effects ; Hydrothermal pretreatment ; Lignin - isolation & purification ; Pelleting ; Pretreatment ; Sodium Hydroxide - pharmacology ; Sugars ; Water - pharmacology ; Xylans - isolation & purification ; Zea mays - chemistry
É parte de: Bioresource technology, 2014-01, Vol.151, p.54-62
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: •Water-involved pretreatments and hydrolysis of briquettes & pellets were investigated.•Briquetting and pelletting improved diluted-NaOH pretreatment and enzymatic hydrolysis.•Pelletting made hydrothermal pretreatment easier resulting in better sugar yield.•Briquetting increased difficulty of hydrothermal pretreatment and sugar conversion.•Auto-swelling may facilitate water-involved pretreatments of the densified biomass. Although lignocellulosic biomass has been extensively regarded as the most important resource for bioethanol, the wide application was seriously restricted by the high transportation cost of biomass. Currently, biomass densification is regarded as an acceptable solution to this issue. Herein, briquettes, pellets and their corresponding undensified biomass were pretreated by diluted-NaOH and hydrothermal method to investigate the responses of biomass densification to these typical water-involved pretreatments and subsequent enzymatic hydrolysis. The densified biomass auto-swelling was initially investigated before pretreatment. Results indicated pellets could be totally auto-swollen in an hour, while it took about 24h for briquettes. When diluted-NaOH pretreatment was performed, biomass briquetting and pelleting improved sugar conversion rate by 20.1% and 5.5% comparing with their corresponding undensified biomass. Pelleting improved sugar conversion rate by 7.0% after hydrothermal pretreatment comparing with the undensified biomass. However, briquetting disturbed hydrothermal pretreatment resulting in the decrease of sugar conversion rate by 15.0%.
Editor: Kidlington: Elsevier Ltd
Idioma: Inglês

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Responses of biomass briquetting and pelleting to water-involved pretreatments and subsequent enzymatic hydrolysis

Li, Yang ; Li, Xiaotong ; Shen, Fei ; Wang, Zhanghong ; Yang, Gang ; Lin, Lili ; Zhang, Yanzong ; Zeng, Yongmei ; Deng, Shihuai

Kidlington: Elsevier Ltd

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