Extrusion as a pretreatment to increase biogas production

Hjorth, Maibritt; Gränitz, Kay; Adamsen, Anders Peter S.; Møller, Henrik Bjarne

doi:10.1016/j.biortech.2010.11.128

Cited by 131 publications

(69 citation statements)

References 16 publications

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“…The extruder, which is more efficient than other physical pretreatment methods, has recently been used to enhance methane production from LB. The methane production increased significantly by 18-70% using extrusion as a pretreatment to test five agricultural residues [26]. A similar result was reported of an increase in methane production 72.2% by extrusion pretreated rice straw over that of the untreated rice straw [9].…”

Section: Introductionsupporting

confidence: 57%

A physicochemical method for increasing methane production from rice straw: Extrusion combined with alkali pretreatment

Zhang

Chen

et al. 2015

Applied Energy

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Section: Introductionsupporting

confidence: 57%

A physicochemical method for increasing methane production from rice straw: Extrusion combined with alkali pretreatment

Zhang

Chen

et al. 2015

Applied Energy

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“…29,74 Extrusion causes depolymerization of cellulose, hemicellulose, lignin, and protein, and sometimes also thermal degradation of sugars and amino acids. Hjorth et al 75 tested five agricultural biomasses (straw, fresh grass, solid fraction of manure, and deep litter from cattle) for the biogas production by using extrusion as pretreatment. Extrusion accelerated the degradation of the majority of organic compounds which in turn increased methane yield by 18-70 % after 28 days of AD, and 9-28 % after 90 days of AD.…”

Section: Physical Pretreatmentmentioning

confidence: 99%

Soybean Straw, Corn Stover and Sunflower Stalk as Possible Substrates for Biogas Production in Croatia: A Review

Kovačić

Kralik

Rupčić

et al. 2017

Chem.Biochem.Eng.Q.

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Biomass availability is one of the key factors for biogas production in the future. The current status and possibilities for utilizing harvest residues (soybean straw, corn stover and sunflower stalk) in Croatia for biogas production is given. In the last few decades, different pretreatment methods have been developed for the degradation of different lignocellulosic biomass, but many of them are environmentally unfriendly and sometimes very expensive. More research and development is necessary in order to find both economically and environmentally friendly pretreatment methods. This paper provides a review on the mechanical, physical, and biological methods used for different lignocellulose material pretreatment. Harvest residues are usually left in the field, but with the improvement of the pretreatment process along with soil protection, they could be used for the production of huge amounts of energy in the future.

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“…Thermal pretreatment of the solid fraction of manure was reported to improve the yield by 9%-24% [7]. Extrusion applied on straw and the solid fraction of manure resulted in 70% and 27% increases, respectively [8]. Up to 40% more methane was exploited from biowaste by applying thermal wet oxidation [9].…”

Section: Introductionmentioning

confidence: 99%

Improving Anaerobic Digestion of Wheat Straw by Plasma-Assisted Pretreatment

Heiske

Schultz-Jensen

Leipold

et al. 2013

Journal of Atomic and Molecular Physics

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Plasma-assisted pretreatment (PAP) of lignocellulosic biomass has been shown to be an efficient method to decompose lignin and consequently facilitate microbial access to cellulose and hemicellulose. In the present study, PAP was tested for its suitability to enhance bioconversion of wheat straw to methane. In thermophilic batch experiments, methane yields of up to 366 mL/g volatile solids (VSs) were achieved, accounting for a yield increase of 45%. Common lignin-derived inhibitors like 5-hydroxymethylfurfural (5-HMF) and furfural were not detected after PAP, but toxicity test resulted in lower methane yields at higher substrate concentrations, indicating the presence of other unidentified inhibitors. However, in a continuous lab-scale biogas reactor experiment, stable codigestion of cattle manure with 20% PAP wheat straw was demonstrated, while no signs of adverse effects on the anaerobic digestion process were observed. After the introduction of the pretreated wheat straw to the reactor, volatile fatty acid concentrations remained low and stable, while gas production increased. In co-digestion, the PAP wheat straw was converted at an average yield of 343 mL CH 4 /gVS.

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Extrusion as a pretreatment to increase biogas production

Cited by 131 publications

References 16 publications

A physicochemical method for increasing methane production from rice straw: Extrusion combined with alkali pretreatment

A physicochemical method for increasing methane production from rice straw: Extrusion combined with alkali pretreatment

Soybean Straw, Corn Stover and Sunflower Stalk as Possible Substrates for Biogas Production in Croatia: A Review

Improving Anaerobic Digestion of Wheat Straw by Plasma-Assisted Pretreatment

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