scholarly journals Bioderived ionic liquid-based pretreatment enhances methane production from Agave tequilana bagasse

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 14025-14032 ◽  
Author(s):  
José A. Pérez-Pimienta ◽  
José P. A. Icaza-Herrera ◽  
Hugo O. Méndez-Acosta ◽  
Victor González-Álvarez ◽  
Jorge A. Méndoza-Pérez ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Methane Production ◽  
Methane Conversion ◽  
Agave Tequilana ◽  
Biomass Characterization

Methane conversion is enhanced by optimized bioderived ionic-liquid pretreated Agave tequilana bagasse with in-depth biomass characterization analysis.

Methane production from acid hydrolysates of Agave tequilana bagasse: Evaluation of hydrolysis conditions and methane yield

2015 ◽  
Vol 181 ◽  
pp. 191-199 ◽  
Author(s):  
Jorge Arreola-Vargas ◽  
Valeria Ojeda-Castillo ◽  
Raúl Snell-Castro ◽  
Rosa Isela Corona-González ◽  
Felipe Alatriste-Mondragón ◽  
...  
Keyword(s):  
Methane Production ◽  
Methane Yield ◽  
Agave Tequilana ◽  
Hydrolysis Conditions

scholarly journals Bioelectrochemical Enhancement of Biogenic Methane Conversion of Coal

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2577 ◽  
Author(s):  
Dong-Mei Piao ◽  
Young-Chae Song ◽  
Dong-Hoon Kim
Keyword(s):  
Methane Production ◽  
Methane Conversion ◽  
Substrate Inhibition ◽  
Hydrolysis Product ◽  
Oxygen Demand ◽  
Methane Yield ◽  
Anaerobic Reactor ◽  
Adaptation Time ◽  
Biogenic Methane ◽  
Inhibition Effect

This study demonstrated the enhancement of biogenic coal conversion to methane in a bioelectrochemical anaerobic reactor with polarized electrodes. The electrode with 1.0 V polarization increased the methane yield of coal to 52.5 mL/g lignite, which is the highest value reported to the best of our knowledge. The electrode with 2.0 V polarization shortened the adaptation time for methane production from coal, although the methane yield was slightly less than that of the 1.0 V electrode. After the methane production from coal in the bioelectrochemical reactor, the hydrolysis product, soluble organic residue, was still above 3600 mg chemical oxygen demand (COD)/L. The hydrolysis product has a substrate inhibition effect and inhibited further conversion of coal to methane. The dilution of the hydrolysis product mitigates the substrate inhibition to methane production, and a 5.7-fold dilution inhibited the methane conversion rate by 50%. An additional methane yield of 55.3 mL/g lignite was obtained when the hydrolysis product was diluted 10-fold in the anaerobic toxicity test. The biogenic conversion of coal to methane was significantly improved by the polarization of the electrode in the bioelectrochemical anaerobic reactor, and the dilution of the hydrolysis product further improved the methane yield.

scholarly journals Pretreatment of Lignocellulosic Biomass with 1-Ethyl-3-methylimidazolium Acetate for Its Eventual Valorization by Anaerobic Digestion

Resources ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 118
Author(s):  
Jose D. Marin-Batista ◽  
Angel F. Mohedano ◽  
Angeles de la Rubia
Keyword(s):  
Ionic Liquid ◽  
Anaerobic Digestion ◽  
Wheat Straw ◽  
Lignocellulosic Biomass ◽  
Methane Production ◽  
Liquid Fraction ◽  
Soluble Sugars ◽  
Crystallinity Index ◽  
Barley Straw ◽  
Cellulose Crystallinity

This study assessed the breakdown of lignocellulosic biomass (LB) with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]) as a pretreatment to increase the methane yield. The pretreatment was conducted for wheat straw (WS), barley straw (BS), and grape stem (GS) at 120 °C for 120 min, using several LB to [Emim][Ac] ratios (1:1, 1:3, and 1:5 w/w). Pretreatment significantly disrupted the lignocellulose matrix of each biomass into soluble sugars. GS showed the highest sugar yield, which was followed by WS, while BS was slightly hydrolyzed (175.3 ± 2.3, 158.2 ± 5.2, and 51.1 ± 3.1 mg glucose g–1 biomass, respectively). Likewise, the pretreatment significantly reduced the cellulose crystallinity index (CrI) of the resulting solid fractions of GS and WS by 15% and 9%, respectively, but slightly affected the CrI of BS (5%). Thus, BMP tests were only carried out for raw and hydrothermally and [Emim][Ac] (1:5) pretreated GS and WS. The untreated GS and WS showed similar methane yields to those achieved for the solid fraction obtained after pretreatment with an LB to [Emim][Ac] ratio of 1:5 (219 ± 10 and 368 ± 1 mL CH4 g–1 VS, respectively). The methane production of the solid plus liquid fraction obtained after IL pretreatment increased by 1.61- and 1.34-fold compared to the raw GS and WS, respectively.

scholarly journals Direct methane conversion to methanol by ionic liquid-dissolved platinum catalysts

2006 ◽  
pp. 4617 ◽  
Author(s):  
Jihong Cheng ◽  
Zaiwei Li ◽  
Mark Haught ◽  
Yongchun Tang
Keyword(s):  
Ionic Liquid ◽  
Methane Conversion ◽  
Platinum Catalysts

Calibrating and validating a numerical model concept for microbially enhanced coal bed methane production with batch and column data

2020 ◽  
Author(s):  
Simon Emmert ◽  
Katherine Davis ◽  
Robin Gerlach ◽  
Holger Class
Keyword(s):  
Numerical Model ◽  
Methane Production ◽  
Methane Conversion ◽  
Experimental Studies ◽  
Transport Processes ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Column Studies ◽  
Model Concept ◽  
Flow And Transport

<p>Microbially enhanced coal-bed methane (MECBM) production is an innovative idea to stimulate biogenic coal-bed methane production by providing nutrients to the native microbial community. Through additional substrate in the subsurface, a stimulation of microbes occurs, which leads to an increased methane production. Experimental studies, performed at Montana State University, provide the basis for modelling MECBM production with two-phase multi-component transport processes using the numerical simulator DuMuX [1].</p><p>We will present the calibrated and validated numerical batch model. The conceptual model comprises a food-web that includes two types of bacteria and three types of archaea representing substrate-specific members of the community with the corresponding biogeochemical reactions. These are derived from experimental studies [2]. The model is able to capture the interactions between different microbial groups, coal bioavailability, biofilm growth and decay as well as CH4 production.</p><p>The numerical batch model is extended to simulate column studies [3]. The model is being used to test hypotheses on different processes e.g. coal bioavailability and retardation or filtering effects when adding substrate. The numerical model provides a more detailed understanding of the relevant processes involved in MECBM production as well as a general understanding of biogeochemical reactions coupled with possibly changing flow and transport conditions in the subsurface. This model will be an instrumental tool in further development of a more sustainable method of harvesting methane from unmineable coal-beds.<br><br>[1] Koch, Timo, et al. "DuMu<sup>X</sup>3--an open-source simulator for solving flow and transport problems in porous media with a focus on model coupling." <em>arXiv preprint arXiv:1909.05052</em> (2019).<br>[2] Davis, Katherine J., et al. "Biogenic Coal-to-Methane Conversion Efficiency Decreases after Repeated Organic Amendment." <em>Energy & fuels</em> 32.3 (2018): 2916-2925.<br>[3] Davis, Katherine J., et al. "Biogenic coal-to-methane conversion can be enhanced with small additions of algal amendment in field-relevant upflow column reactors." Fuel 256 (2019): 115905.</p><p> </p>

scholarly journals Ultra-low temperature carbon (di)oxide hydrogenation catalyzed by hybrid ruthenium–nickel nanocatalysts: towards sustainable methane production

2020 ◽  
Vol 22 (15) ◽  
pp. 5143-5150 ◽  
Author(s):  
Tomasz Siudyga ◽  
Maciej Kapkowski ◽  
Piotr Bartczak ◽  
Maciej Zubko ◽  
Jacek Szade ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Effect ◽  
Methane Production ◽  
Methane Conversion ◽  
Ni Catalyst

Syngas to methane conversion can be attained in flow at temperatures starting from −7 °C with a hybrid bimetallic Ru/Ni catalyst. In turn, the ultra-low temperature effect cannot be observed for the Re/Ni and Pd/Ni combinations.

Agave tequilana bagasse for methane production in batch and sequencing batch reactors: Acid catalyst effect, batch optimization and stability of the semi-continuous process

2018 ◽  
Vol 224 ◽  
pp. 156-163 ◽  
Author(s):  
Luz Breton-Deval ◽  
Hugo O. Méndez-Acosta ◽  
Víctor González-Álvarez ◽  
Raúl Snell-Castro ◽  
Daniel Gutiérrez-Sánchez ◽  
...  
Keyword(s):  
Methane Production ◽  
Continuous Process ◽  
Acid Catalyst ◽  
Batch Reactors ◽  
Agave Tequilana ◽  
Sequencing Batch Reactors ◽  
Catalyst Effect

Single and two-stage anaerobic digestion for hydrogen and methane production from acid and enzymatic hydrolysates of Agave tequilana bagasse

2016 ◽  
Vol 41 (2) ◽  
pp. 897-904 ◽  
Author(s):  
Jorge Arreola-Vargas ◽  
Andres Flores-Larios ◽  
Víctor González-Álvarez ◽  
Rosa Isela Corona-González ◽  
Hugo Oscar Méndez-Acosta
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Agave Tequilana ◽  
Two Stage ◽  
Enzymatic Hydrolysates
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