Searched for: subject%3A%22methane%22
(1 - 20 of 107)

Pages

document
Santos, Janaina S. (author), Fereidooni, Mohammad (author), Márquez, Victor (author), Paz-López, Christian V. (author), Villanueva, Martin S. (author), Buijnsters, J.G. (author), Praserthdam, Supareak (author), Praserthdam, Piyasan (author)
This study assessed the photoactivity of amorphous and crystalline TiO<sub>2</sub> nanotube arrays (TNA) films in gas phase CO<sub>2</sub> reduction. The TNA photocatalysts were fabricated by titanium anodization and submitted to an annealing treatment for crystallization and/or cathodic reduction to introduce Ti<sup>3+</sup> and oxygen...
journal article 2024
document
Morales-Espana, G. (author), Hernández-Serna, Ricardo (author), Tejada-Arango, Diego A. (author), Weeda, Marcel (author)
In this paper, we aim to analyse the impact of hydrogen production decarbonisation and electrification scenarios on the infrastructure development, generation mix, CO<sub>2</sub> emissions, and system costs of the European power system, considering the retrofit of the natural gas infrastructure. We define a reference scenario for the European...
journal article 2024
document
van den Brink, Mark (author)
Capillary barrier systems (CBSs) have been demonstrated to be effective in deviating infiltration in a landfill cover. However, their performance when combined with a cover soil optimised for methane oxidation had not been tested in the field yet. This study aimed to describe the water balance of a test field where such a configuration was built...
master thesis 2023
document
Patibandla, Akul Sai (author)
There is an increase in the amount of CO2 emissions in the past few decades and the process of capturing it back is at a much lower rate. The need of the hour is to reduce the emission rate or even avoid producing them in certain aspects. There is a transition towards renewable energy sources<br/>that could help us maintain the balance required....
master thesis 2023
document
Verburg, Dylan (author)
On the 14th of July 2013, a methane peak was observed in the Gale crater. This methane peak has been investigated in a non-biological context before. This study applies exoplanet research strategies and knowledge about biological methane production on Earth to investigate the biological context. Bayes formula is the foundation of the Bayesian...
master thesis 2023
document
Stroo, Aike (author)
Methane pyrolysis is a technology that has the potential to greatly reduce the CO2 emissions of hydrogen production on a large scale. The process generates solid carbon instead of gaseous, thereby inhibiting emissions and has a relatively low process energy demand.<br/><br/>A three-step approach was taken to investigate the feasibility of...
master thesis 2023
document
Peng, C. (author), May, Ali (author), Abeel, T.E.P.M.F. (author)
BackgroundEnteric methane from cow burps, which results from microbial fermentation of high-fiber feed in the rumen, is a significant contributor to greenhouse gas emissions. A promising strategy to address this problem is microbiome-based precision feed, which involves identifying key microorganisms for methane production. While machine...
journal article 2023
document
Stuyfzand, Pieter Jan (author), Bonte, Matthijs (author)
Arsenic is a common trace element in groundwater and its fate and transport are controlled by combination of (i) natural processes, including redox conditions, salinity and pH, (ii) sedimentary and geochemical environment, and (iii) anthropogenic influences such as groundwater extraction, managed aquifer recharge (MAR), Aquifer Thermal Energy...
journal article 2023
document
Abdelrahman, Amr Mustafa (author), Kosar, Sadiye (author), Gulhan, Hazal (author), Cicekalan, Busra (author), Ucas, Gulin (author), Atli, Ezgi (author), Guven, Huseyin (author), Ozgun, Hale (author), van Lier, J.B. (author)
Biogas production from anaerobic sludge digestion plays a central role for wastewater treatment plants to become more energy-efficient or even energy-neutral. Dedicated configurations have been developed to maximize the diversion of soluble and suspended organic matter to sludge streams for energy production through anaerobic digestion, such...
journal article 2023
document
Weber, J.M. (author), Lapkin, Alexei A. (author)
Designing a simple, yet representative reaction network for subsequent micro-kinetic analysis is important for limiting the cost of evaluation and ensuring model solvability. This is currently achieved by employing sensitivity analysis over a comprehensive reaction network (CRN) to screen reaction species. However, as a reaction network is...
journal article 2023
document
Bahgat, T.M.S.M. (author), Wilfert, P.K. (author), Korving, Leon (author), van Loosdrecht, Mark C.M. (author)
The study evaluated the combined phosphorus, nitrogen, methane, and extracellular polymeric substances (EPS) recovery from aerobic granular sludge (AGS) wastewater treatment plants. About 30% of sludge organics are recovered as EPS and 25–30% as methane (≈260 ml methane/g VS) by integrating alkaline anaerobic digestion (AD). It was shown that...
journal article 2023
document
Bao, Hesheng (author), Han, Jinlin (author), Zhang, Yan (author), Di Matteo, Andrea (author), Roekaerts, D.J.E.M. (author), Van Oijen, Jeroen (author), Somers, Bart (author)
In the current work, the Flamelet Generated Manifold (FGM) method is applied with large-eddy simulation (LES) to investigate the effect of methane on dual-fuel (DF) spray ignition. The diesel surrogate n-dodecane is injected as the so-called pilot fuel into selected lean methane–air mixtures, ranging from ϕ<sub>CH<sub>4</sub></sub>=0 to ϕ<sub...
journal article 2023
document
Hu, L. (author), Pinto, D. (author), Urakawa, A. (author)
Direct valorization of methane via oxidative coupling of methane (OCM) is an encouraging alternative to conventional oil-based processes for the production of light hydrocarbons (ethane and ethylene). Abundant, inexpensive simple oxides such as MgO and La<sub>2</sub>O<sub>3</sub> possess the ability to selectively activate methane. However,...
journal article 2023
document
Buisma-Yi, S.C. (author), Heijbroek, A.C. (author), Cutz, L. (author), Pillay, S. (author), de Jong, W. (author), Abeel, T.E.P.M.F. (author), Gebert, J. (author)
Application of biochar to landfill cover soils can purportedly improve methane (CH4) oxidation rates, but understanding the combined effects of soil texture, compaction, and biochar on the activity and composition of the methanotrophs is limited. The amendment of wood biochar on two differently textured landfill cover soils at three compaction...
journal article 2023
document
Zhang, Hao (author), Bolshakov, Aleksei (author), Meena, Raghavendra (author), Garcia, Gustavo A. (author), Dugulan, A.I. (author), Parastaev, Alexander (author), Li, Guanna (author), Hensen, Emiel J.M. (author), Kosinov, Nikolay (author)
Non-oxidative coupling of methane is a promising route to obtain ethylene directly from natural gas. We synthesized siliceous [Fe]zeolites with MFI and CHA topologies and found that they display high selectivity (&gt;90 % for MFI and &gt;99 % for CHA) to ethylene and ethane among gas-phase products. Deactivated [Fe]zeolites can be regenerated...
journal article 2023
document
Veefkind, j. Pepijn (author), Serrano Calvo, R. (author), de Gouw, J. (author), Dix, B. (author), Schneising, O. (author), Buchwitz, M. (author), Barré, J. (author), van der A, R. J. (author), Liu, M. (author), Levelt, Pieternel Felicitas (author)
Emissions of methane (CH<sub>4</sub>) in the Permian basin (USA) have been derived for 2019 and 2020 from satellite observations of the Tropospheric Monitoring Instrument (TROPOMI) using the divergence method, in combination with a data driven method to estimate the background column densities. The resulting CH<sub>4</sub> emission data,...
journal article 2023
document
Thornquist, Ona (author)
With the onset of climate change it is crucial to eliminate emissions, particularly for aviation reliant on gas turbine combustion. Computational models aid combustor improvement, but experimental data needed for validation is difficult to obtain. Fortunately, laser diagnostics can now achieve non-intrusive, high-resolution combustion...
master thesis 2022
document
SELVAM, KARTHIK (author)
CO2 is the major contributor of green houses gases in the atmosphere. Two notable branches that revolutionized the approach toward reducing the CO2 in the atmosphere are Carbon Capture Storage (CCS) and Carbon Capture Utilization (CCU). CCS has its shortcomings in the long run, a study from MIT shows that the united states have an adequate land...
master thesis 2022
document
Jagarlapudi, Aravinda Virinchi (author)
The Saturnian moon Titan has a methane-based hydrological cycle similar to the water cycle on earth. This includes lakes, fluvial drainage networks, clouds and has evidence for precipitation of methane rain. Here we explore the impact of rainfall on Titan based on an analogue laboratory approach. While the composition and structure of the Titan...
master thesis 2022
document
Rindhe, Pratik (author)
Since the pre-industrial era, methane has contributed as much as 0.5°C to global warming. With a global warming potential of 28-34 times that of CO2 over 100 years, and with 80 times the warming power of CO2 in the first 20 years, methane has a large impact on climate change. Measurements from the satellite instrument TROPOMI help inform on the...
master thesis 2022
Searched for: subject%3A%22methane%22
(1 - 20 of 107)

Pages