Biogas production from coal via anaerobic fermentation

Gupta, Priyanka; Gupta, Anish

doi:10.1016/j.fuel.2013.10.075

Cited by 76 publications

(40 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous studies showed biogenic methane generation in the range of 0.1-0.25 mM per gram coal by using coal as a substrate at mesophilic conditions (Green et al, 2008;Gupta and Gupta, 2014;Papendick et al, 2011). However, generation of high amount of biogenic methane from high rank (bituminous) coal at thermophilic temperature range is reported first time in this study.…”

Section: Time (Days)mentioning

confidence: 54%

“…There are reports indicating formation of biogenic methane in the range of 0.1-0.25 mM/g coal at mesophilic conditions after an incubation period of more than a month (Gupta and Gupta, 2014;Strapoc et al, 2008). However, considering the applicability of this technology at high temperature range, there are very few reports on the biogenic methane potential of thermophilic coal reserves (Kimura et al, 2010;Wei et al, 2014).…”

Section: Salinity (%Nacl)mentioning

confidence: 99%

“…Similarly, Gao et al, 2010 mentioned the adverse effect of higher pH (more than 8.0) on methanogenesis. Recently, Gupta and Gupta (2014) showed that the maximum biogenic methane production from coal was observed at pH range of 7.0-7.5. Concurrently, in this study the methane production gradually decreased below pH 7.0, while methane production from coal was highest at pH 7.5.…”

Section: Time (Days)mentioning

confidence: 99%

“…However, according to recent review by Ritter et al (2015), there are successful applications of laboratory based research implemented in field. Several studies have been reported on determining the optimal reservoir conditions for methane production by indigenous microbial consortium at laboratory scale (Green et al, 2008;Gupta and Gupta, 2014;Papendick et al, 2011).…”

Section: Time (Days)mentioning

confidence: 99%

See 3 more Smart Citations

Development of a microbial process for methane generation from bituminous coal at thermophilic conditions

Rathi

Priya

Vohra

et al. 2015

International Journal of Coal Geology

View full text Add to dashboard Cite

Section: Time (Days)mentioning

confidence: 54%

Section: Salinity (%Nacl)mentioning

confidence: 99%

Section: Time (Days)mentioning

confidence: 99%

Section: Time (Days)mentioning

confidence: 99%

See 2 more Smart Citations

Development of a microbial process for methane generation from bituminous coal at thermophilic conditions

Rathi

Priya

Vohra

et al. 2015

International Journal of Coal Geology

View full text Add to dashboard Cite

“…Desde hace algunos lustros se ha venido estudiando la implementación de diversas alternativas para retirar los contaminantes presentes en el biogás [9], dentro de ellas están los procesos de adsorción química, adsorción física, adsorción en superficie sólida, separación por membrana, separación criogénica, conversión química y procesos biológicos [10]. Una de las alternativas más utilizadas es la adsorción en superficie sólida en columnas de lecho empacado, empleando diversos materiales sólidos, el cual cumple la función de filtro para los contaminantes del biogás como el dióxido de carbono, el sulfuro de hidrógeno, el amoniaco, entre otros, garantizando así un biogás con alto contenido en metano [11]. Muchos de los sustratos utilizados en las columnas de adsorción son la limadura de hierro, óxido de calcio, hidróxido de potasio, carbón activado, y otros minerales puesto que estos presentan características fisicoquímicas que favorecen la capacidad de adsorción frente a los contaminantes [12].…”

Section: Introductionunclassified

Aplicación de Modelos Matemáticos en Curvas de Ruptura de contaminantes del Biogás

Vasco-Echeverri

Ramírez-Carmona

Gómez-Mojica

2016

rev.ion

View full text Add to dashboard Cite

ResumenEn este proyecto se purifi có el biogás empleando columnas de adsorción independientes empacadas con carbón activado, limadura de hierro, caolín y carbonato de calcio. Los experimentos se realizaron en columnas de polipropileno de 2cm de diámetro y 9cm de longitud. Las curvas de ruptura se construyeron con un fl ujo de biogás promedio diario de 2,2L. Se tomaron muestras durante 28 días como máximo, a las cuales se cuantifi caron la composición del biogás mediante cromatografía de gases y un analizador de gases en línea. Las curvas se ajustaron a tres modelos matemáticos. En el caso del Carbón activado se obtuvo un coefi ciente de correlación de 0,9987 y 0,9991 para el Sulfuro de Hidrógeno (H 2 S) y el Amoniaco (NH 3 ), respectivamente. En el caso de la limadura de hierro se obtuvo un coefi ciente de correlación de 0,9945 y 0,9975 para el H 2 S y NH 3 , respectivamente. Empleando caolín se obtuvo un coefi ciente de correlación de 0,9994 y 0,9885 para el H 2 S y NH 3 , respectivamente. Con Carbonato de Calcio se obtuvo un coefi ciente de correlación de 0,9988 y 0,9985 para el H 2 S y NH 3 , respectivamente. El porcentaje de remoción del H 2 S y del NH 3 del carbón activado fue del 72,6%, la limadura de hierro fue del 74,1%, el caolín fue del 32,7% y del carbonato de calcio del 65,4%. Palabras clave: Modelos matemáticos, curvas de ruptura, purifi cación de biogás, sulfuro de hidrógeno, amoniaco, adsorción. AbstractIn this project biogas was purifi ed using separate packed bed adsorption columns using activated carbon, iron fi lings, kaolin and calcium carbonate. Experiments were performed in 2cm diameter and 9cm length polypropylene columns. The breakthrough curves were constructed with an average biogas fl ow of 2.2L per day. Samples were taken for almost 28 days, which biogas composition were quantifi ed using gas chromatography and online gas analyser. The curves were fi tted to three mathematical models. Using activated carbon a correlation coeffi cient of 0.9987 and 0.9991 for hydrogen sulfi de (H 2 S) and ammonia (NH 3 ), respectively, were obtained. In the case of iron fi lings a correlation coeffi cient of 0.9945 and 0.9975 for H 2 S and NH 3 , respectively, were obtained. Using kaolin a correlation coeffi cient of 0.9994 and 0.9885 for H 2 S and NH 3 , respectively, were obtained. Finally, using calcium carbonate with a correlation coeffi cient of 0.9988 and 0.9985 for H 2 S and NH 3 , respectively, were obtained. Removal percentage of

show abstract

Influence of bioconversion on pore structure of bituminous coal

Chai

Zhou

et al. 2020

Asia-Pacific J Chem Eng

View full text Add to dashboard Cite

Microbial-enhanced coalbed methane is a feasible technique to improve gas recovery and achieve antipenetration, and the coal pores determine the gasadsorption capacity and permeability. To study the pore structure of bituminous coal before and after microbial treatment mercury intrusion porosimetry, nitrogen-gas adsorption, scanning electron microscopy, X-ray diffraction, and Fourier-transform infrared spectroscopy was used. The results showed that the microbial treatment increased the macropores volume of the high volatile bituminous coal and sub-bituminous coal, and decreased the micropore and mesopore volume. The porosity increased by 33.80% and 22.89% for the high volatile bituminous coal and sub-bituminous coal, respectively. The effect of bioconversion on the pore structure increases as the degree of coal evolution increases. Because of bioconversion, the oxygen-containing functional groups and the degree of coal crystallization were reduced and the organic matter was degraded, which lead to an enhancement of the pore connectivity. The optimal pH of the nutrient solution for microbial changes to the pore structure was 7. Compared with pure water, the reference of mine water to configure the nutrient solution was more conducive to microbial activity and had a greater impact on the pore structure. K E Y W O R D Scoalbed methane, bituminous coal, pore structure, pH, bio-enhancement

show abstract

Biogas production from coal via anaerobic fermentation

Cited by 76 publications

References 16 publications

Development of a microbial process for methane generation from bituminous coal at thermophilic conditions

Development of a microbial process for methane generation from bituminous coal at thermophilic conditions

Aplicación de Modelos Matemáticos en Curvas de Ruptura de contaminantes del Biogás

Influence of bioconversion on pore structure of bituminous coal

Contact Info

Product

Resources

About