Techno-economical study of biogas production improved by steam explosion pretreatment

Shafiei, Marzieh; Kabir, Maryam M.; Zilouei, Hamid; Horváth, Ilona Sárvári; Karimi, Keikhosro

doi:10.1016/j.biortech.2013.08.111

Cited by 84 publications

(41 citation statements)

References 19 publications

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“…However, the highly crystalline cellulose is well packed by a matrix of lignin and hemicellulose in the natural structure, and it is the main drawback of using lignocellulosic materials limiting the production of methane (Frigon and Guiot, 2010;Taherzadeh and Karimi, 2008). Lignin, as a main factor of integrity and structural rigidity, is responsible for the recalcitrance of lignocellulosic substrate to bacterial degradation by limiting cellulose accessibility (Gupta et al, 2011;Shafiei et al, 2013). Therefore, an effective pretreatment step is required to enhance the digestibility of lignocellulose (Bateni et al, 2014;Hendriks and Zeeman, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…All types of raw materials containing carbohydrates, fats, proteins, cellulose, and hemicelluloses as the major components can be employed as substrates for biomethane production (Weiland, 2010). In particular, lignocellulosic materials such as agricultural residues have been widely considered as the most suitable raw materials for biomethane production due to relatively low costs, high availability, and no direct competition with food and feed production (Shafiei et al, 2013;Taherzadeh and Karimi, 2008). Sunflower residues, especially sunflower stalks which are lignocellulosic biomass, are globally produced 78-182 million tons per year (reported by FAO in 2013) and typically disposed as a waste or burned in the fields causing environmental pollution (Ruiz et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced biogas production from sunflower stalks using hydrothermal and organosolv pretreatment

Hesami

Zilouei

Karimi

et al. 2015

Industrial Crops and Products

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced biogas production from sunflower stalks using hydrothermal and organosolv pretreatment

Hesami

Zilouei

Karimi

et al. 2015

Industrial Crops and Products

Self Cite

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“…CBG was sold at a price of 1.81 USD/L, after the fuel tax and utilities were priced in accordance. [21] The minimum compressed biogas price (CBG min ) is a measure, which determines the minimum price of biogas sold in the market to have a zero profit (NPV = 0) and was calculated for all six scenarios. [22] [ Table 1]…”

Section: Equipment and Economicsmentioning

confidence: 99%

Uncertainty over techno-economic potentials of biogas from municipal solid waste (MSW): A case study on an industrial process

et al. 2014

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In this study, biogas production from the organic fraction of the MSW (OMSW) was simulated in six different scenarios, using Aspen plus ® based on industrial data. The economic evaluations were made using the Aspen process economic analyzer, considering the plant size and the upgrading methods. The base case had an annual processing capacity of 55,000 m 3 OMSW. The capital costs and the net present value (NPV) after 20 years of operation were 34.6 and 27.2 million USD, respectively. The base case was compared to the modified scenarios, which had different upgrading methods, processing capacities, addition of biogas from wastewater sludge treatment, and variation of the substrate (OMSW) between ±200 USD/ton. The sensitivity analyses were carried out considering the cost of the OMSW imposed on citizens for collection and transportation of wastes and the different sizes of the plant. The result suggests that producing biogas and selling it, as a vehicle fuel from OMSW is a profitable venture in most scenarios. However, there are some uncertainties, including the collection and transportation costs, landfilling fee, and process operation at lower capacities, which affect its profitability.

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“…Many pretreatment methods have been employed to improve the biodegradability of lignocellulosic biomass, such as mechanical (e.g., milling), thermal (e.g., liquid hotwater and steam explosion), chemical (i.e., acid or alkaline), and biological (e.g., white rot fungi and enzymatic) treatments (Taherzadeh and Karimi 2008;Shafiei et al 2013). In some instances, the combination of different treatments can achieve a good efficiency, especially when the biomass has a high lignocellulosic crystallinity degree (Zheng et al 2014;Matsakas et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Biogas Yield of Chinese Herbal Medicine Extraction Residue by Hydrothermal Pretreatment

Wang

Zhang²,

Yan

et al. 2017

BioResources

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aChinese herbal medicine extraction residue (CHER) is a special organic waste produced in China. Because of the high content of lignocelluloses, CHER have a weak bioconversion efficiency for bio-products production. This study investigates the effect of a hydrothermal pretreatment (HTP, 140 to 220 °C, 15 min) on the organic matter solubilisation, biochemical methane potential, and methanation kinetics of CHER during anaerobic digestion (AD). The AD test was conducted with 5 g/L total solid at 35 °C for 30 d. The results showed that the HTP clearly improved the solubilisation of CHER, and the obtained soluble COD (%) reached over 30% (only 4.5% in untreated). Acetic acid, xylose, and glucose were found to be the main products in the hydrolysate. The methane yield and methanation speed of the treated CHER were also enhanced. The highest methane yield of 306 mL/g volatile solid was achieved at a HTP temperature of 180 °C, while the untreated control was only 175 mL/g VS. Moreover, a carbonisation phenomenon was observed at HTP temperatures over 200 °C, which resulted in a loss of organic matter and methane yield.

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Techno-economical study of biogas production improved by steam explosion pretreatment

Cited by 84 publications

References 19 publications

Enhanced biogas production from sunflower stalks using hydrothermal and organosolv pretreatment

Enhanced biogas production from sunflower stalks using hydrothermal and organosolv pretreatment

Uncertainty over techno-economic potentials of biogas from municipal solid waste (MSW): A case study on an industrial process

Enhanced Biogas Yield of Chinese Herbal Medicine Extraction Residue by Hydrothermal Pretreatment

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