Effects of Corn Stover Pretreated with NaOH and CaO on Anaerobic Co-Digestion of Swine Manure and Corn Stover

You, Zhaoyang; Zhang, Shujuan; Kim, Hyunook; Chiang, Pen‐Chi; Sun, Yonjun; Guo, Ziyang; Xu, Haiyang

doi:10.3390/app9010123

Cited by 31 publications

(16 citation statements)

References 56 publications

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“…With the growth of vehicles and an over-reliance on fossil fuels in industrial development, biofuel production from non-food crop feedstocks (e.g. agricultural residues, forest residues and industrial wastes) has drawn considerable attention [1,2,3,4,5,6,7,8]. In China, anaerobic digestion of organic wastes has been successfully used for biogas production both domestically, as well as at a larger scale [2,3,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

“…agricultural residues, forest residues and industrial wastes) has drawn considerable attention [1,2,3,4,5,6,7,8]. In China, anaerobic digestion of organic wastes has been successfully used for biogas production both domestically, as well as at a larger scale [2,3,4,5,6]. Different biomass substrates, such as cornstalk, rice straw, wheat straw and pine foliage, have also been investigated for the production of bioethanol [9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Enzymatic Hydrolysis of Pennisetum alopecuroides by Dilute Acid, Alkaline and Ferric Chloride Pretreatments

Tang

et al. 2019

Molecules

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In this study, effects of different pretreatment methods on the enzymatic digestibility of Pennisetum alopecuroides, a ubiquitous wild grass in China, were investigated to evaluate its potential as a feedstock for biofuel production. The stalk samples were separately pretreated with H2SO4, NaOH and FeCl3 solutions of different concentrations at 120 °C for 30 min, after which enzymatic hydrolysis was conducted to measure the digestibility of pretreated samples. Results demonstrated that different pretreatments were effective at removing hemicellulose, among which ferric chloride pretreatment (FCP) gave the highest soluble sugar recovery (200.2 mg/g raw stalk) from the pretreatment stage. In comparison with FCP and dilute acid pretreatment (DAP), dilute alkaline pretreatment (DALP) induced much higher delignification and stronger morphological changes of the biomass, making it more accessible to hydrolysis enzymes. As a result, DALP using 1.2% NaOH showed the highest total soluble sugar yield through the whole process from pretreatment to enzymatic hydrolysis (508.5 mg/g raw stalk). The present work indicates that DALP and FCP have the potential to enhance the effective bioconversion of lignocellulosic biomass like P. alopecuroides, hence making this material a valuable and promising energy plant.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Enzymatic Hydrolysis of Pennisetum alopecuroides by Dilute Acid, Alkaline and Ferric Chloride Pretreatments

Tang

et al. 2019

Molecules

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“…A sustainable society requires members to take responsibility for managing waste in order to prevent adverse impacts on public health and the environment [1,2]. In 2016, an estimated 1.6 billion tons of carbon dioxide-equivalent (CO 2 eq) greenhouse gas (GHG) emissions were generated from solid waste management, representing approximately 5% of the global emissions [3].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Italian Cities: The Added Value of Biomethane from Organic Waste

2019

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This work focuses on the profitability of biomethane plants and the environmental benefits obtained recovering the organic fraction of municipal solid waste in Italy. The economic model is based on the calculations of the net present value, considering multiple capacities of biomethane production (ranging from 50 to 500 m3/h) and alternative scenarios based on the variation in subsidies, the selling price of biomethane, and the net revenues from the treatment of organic waste. The environmental analysis quantifies the reduction in greenhouse gas emissions obtained by natural gas vehicles fueled by biomethane. The economic and environmental results encourage energy change that can be achieved by municipalities that support the transformation of natural resources into green fuels. Across 15 Italian municipalities, the potential biomethane production varies from 80.4 million m3/year to 102.8 million m3/year, with an overall net present value ranging from 135 to 187 million €. In addition, the reduction in greenhouse gas emissions varies from 127 to 162 thousand-ton CO2eq/year. Both the economic and environmental results demonstrate that biomethane is a renewable resource with added value for municipalities.

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“…Numerous approaches have been considered in order to produce methane, either relying on thermochemical processes such as gasification [35] or pyrolysis [36], or even biological processes. In the latter, biomass is pretreated with microorganisms [23] or enzymes [37] to generate a substrate that could be digested by methane producing microorganisms more easily. réSolve Énergie has also investigated a complementary approach allowing the production of biogas from lignin.…”

Section: Resultsmentioning

confidence: 99%

Biorefinery done right

Lugo-Pimentel¹,

Boboescu²,

Beigbeder³

et al. 2020

Int. J. EQ

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following the cOP21 conference in Paris, most of the world's industrialized countries, as well as emerging markets, pledged to reduce or stabilize their greenhouse gas (ghg) emissions in light of increasing concerns regarding climate change [1]. The necessity to decrease ghg emissions will have implications on the consumption patterns of different types of energies around the world. apart from the obvious need to replace part of the increasing fossil fuel consumption in transportation (including road, rail, air and sea), there is a growing demand in other sectors as well, such as for electricity production, heating and cooling. Many opportunities are being investigated to address some of the issues related to this green energy transition, including the increased harnessing of alternative energy sources such as wind, solar, hydro, geothermal and biomass. Despite varying potential for each of the mentioned energy sources to help replace or supplement fossil fuels, only biomass currently has the potential to address most of these needs without requiring significant changes to existing energy distribution networks. for example, biomass can be burnt to generate combined heat and power, but it can also be used as a source of carbon to produce biofuels. In the latter case, biofuels such as ethanol could be blended into the existing fuel pool as well as distributed and utilized in engines without requiring significant modifications to the existing chain of distribution. This adaptiveness is not necessarily the case when considering electric vehicles (EV), although they are also of crucial importance towards collectively reducing ghg emissions. This manuscript will review the Biorefinery Done right-concept, developed by the company réSolve Énergie in close collaboration with the Biomass Technology laboratory. This simple feedstock-agnostic technology allows conversion of any type of residual biomass (including but not limited to softwood bark) to three-types of biofuels. The first objective is to take advantage of the carbohydrate content in the biomass through hydrolysis of the constitutive hemicellulose and cellulose. The fermentable sugars are then converted to ethanol, achieved without any constraints, since the réSolve process generates a hydrolysate with very low inhibitor levels. The lignin recovered from the process is essentially unmodified lignin and after washing, it is pelletized. Pellets, containing the most energetic components of the lignocellulosic biomass, can provide up to 26 gJ/tonne. finally, the non-fermentable sugars (c5), as well as the lignin that does not comply with grade a lignin characteristics, are predigested for utilization in a classical biomethanation system. hence, through this approach, 100% of the carbon from the biomass is converted into commercial products, which at this point are all related to the energy market.

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Effects of Corn Stover Pretreated with NaOH and CaO on Anaerobic Co-Digestion of Swine Manure and Corn Stover

Cited by 31 publications

References 56 publications

Enhanced Enzymatic Hydrolysis of Pennisetum alopecuroides by Dilute Acid, Alkaline and Ferric Chloride Pretreatments

Enhanced Enzymatic Hydrolysis of Pennisetum alopecuroides by Dilute Acid, Alkaline and Ferric Chloride Pretreatments

Sustainable Italian Cities: The Added Value of Biomethane from Organic Waste

Biorefinery done right

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