Results 1 to 10 of about 9,713 (119)

Numerical computational fluid dynamics (CFD) simulation study based on plunger gas lift test

Frontiers in Earth Science, 2023
In order to explore the feasibility of the Computational Fluid Dynamics (CFD) method for plunger gas lift and the flow pattern in a long wellbore, a lab simulation test was conducted to verify the reliability of the CFD simulation results.
Nan Li, Guangqiang Cao, Yixin Jiang, Haohong Gao, Haoyu Wang, Qiubo Wu, Wei Qi, Wentao Ma   +7 more
doaj   +1 more source

Methane Production in Ruminant Animals [PDF]

, 2021
AbstractAgriculture is a significant source of GHGsglobally and ruminant livestock animals are one of the largest contributors to these emissions, responsible for an estimated 14% of GHGs (CH4and N2O combined) worldwide. A large portion of GHG fluxes from agricultural activities is related to CH4 emissions from ruminants.
Mohammad Zaman, Kristina Kleineidam, Lars R. Bakken, Jacqueline Berendt, Conor Bracken, Klaus Butterbach‐Bahl, Zeyu Cai, Scott X. Chang, Timothy J. Clough, Khadim Dawar, Wenyong Ding, Peter Dörsch, M. dos Reis Martins, C. Eckhardt, Sebastian Fiedler, Torsten Frosch, J. P. Goopy, Carolyn-Monika Görres, Apoorv Gupta, S. Henjes, Magdalena E. G. Hofmann, Marcus A. Horn, M. M. R. Jahangir, Anne Jansen-Willems, Katharina Lenhart, Lee Heng, Dominika Lewicka‐Szczebak, G. Lucic, Lutz Merbold, Joachim Mohn, Lars Molstad, Gerald M. Moser, Paul Murphy, Alberto Sanz-Cobeña, Miloslav Šimek, Segundo Urquiaga, Reinhard Well, Nicole Wrage‐Mönnig, Shahriar Zaman, J. Zhang, Christoph Müller   +40 more
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Hydrogen Production from Coal Industry Methane

Eurasian Chemico-Technological Journal, 2022
Coal industry methane is a fossil raw material that can serve as an energy carrier for the production of heat and electricity, as well as a raw material for obtaining valuable products for the chemical industry.
Е.V. Matus, I.Z. Ismagilov, E.S. Mikhaylova, Z.R. Ismagilov   +3 more
doaj   +1 more source

Algal amendment enhances biogenic methane production from coals of different thermal maturity

Frontiers in Microbiology, 2023
The addition of small amounts of algal biomass to stimulate methane production in coal seams is a promising low carbon renewable coalbed methane enhancement technique.
George A. Platt, George A. Platt, Katherine J. Davis, Katherine J. Davis, Hannah D. Schweitzer, Hannah D. Schweitzer, Hannah D. Schweitzer, Heidi J. Smith, Matthew W. Fields, Matthew W. Fields, Elliott P. Barnhart, Robin Gerlach, Robin Gerlach   +12 more
doaj   +1 more source

Synergistic Effects of Anaerobic Co-Digestion of Chicken Manure and Corn Stover in Batch and Continuous Modes

Fermentation, 2023
The present study aimed to evaluate the anaerobic co-digestion process of chicken manure and corn stover to identify the key parameters that influence methane production. Results from both batch and semi-continuous tests showed that co-digestion enhanced
Xinhui Yu, Yanjie Wang, Lei Yan, Yanhong Wang, Jiaxin Lu, Yubo Huang, Shaojie Bi, Weidong Wang   +7 more
doaj   +1 more source

Genetic Analysis of Methane Emission Traits in Holstein Dairy Cattle

Animals, 2023
Genetic selection can be a feasible method to help mitigate enteric methane emissions from dairy cattle, as methane emission-related traits are heritable and genetic gains are persistent and cumulative over time.
Stephanie Kamalanathan, Kerry Houlahan, Filippo Miglior, Tatiane C. S. Chud, Dave J. Seymour, Dagnachew Hailemariam, Graham Plastow, Hinayah R. de Oliveira, Christine F. Baes, Flavio S. Schenkel   +9 more
doaj   +1 more source

Estimation Potential Of Methana Gas From Puwatu Municipal Solid Waste Landfill, Indonesia [PDF]

E3S Web of Conferences, 2023
Methane gas produced from municipal solid waste landfill has excellent energy potential if managed with the right technology. This study aims to estimate the amount of methane emissions from Puuwatu landfill in Kota Kendari, Indonesia using LandGEM V303 ...
Sumarlin Sumarlin, Purwanto Purwanto, Syafrudin Syafrudin   +2 more
doaj   +1 more source

A method to determine nuclear magnetic resonance T2 cutoff value of tight sandstone reservoir based on multifractal analysis

Energy Science & Engineering, 2020
Nuclear magnetic resonance (NMR) T2 cutoff value is an important parameter for pore structure evaluation. It is complicated and uneconomical to obtain T2 cutoff value by an experimental method; therefore, it is necessary to explore a prediction method of
Yunbing Hu, Yinghai Guo, Junjian Zhang, Jingwen Shangguan, Mi Li, Fangkai Quan, Guanlin Li   +6 more
doaj   +1 more source

Application of Biochar on methane production through organic solid waste and ammonia inhibition

Environmental Challenges, 2021
The present study discusses the role of biochar in enhancing methane (biogas) production from organic solid waste (OSW) employing a co-culture of Pseudomonas aeruginosa and Methanosarcina mazei.
Apourv Pant, J.P.N. Rai
doaj   +1 more source

Methane Production in Minnesota Peatlands [PDF]

Applied and Environmental Microbiology, 1984
Rates of methane production in Minnesota peats were studied. Surface (10- to 25-cm) peats produced an average of 228 nmol of CH 4 per g (dry weight) per h at 25°C and ambient pH. Methanogenesis rates generally decreased with depth in ombrotrophic peats, but on occasion were observed to rise within deeper layers of ...
R T, Williams, R L, Crawford
openaire   +2 more sources