Results 61 to 70 of about 256,142 (224)

Permeability experiments on the methane hydrate in quartz sands and its model verification

Natural Gas Industry B, 2018
The permeability of porous media is an important physical parameter that affects the exploitation of natural gas hydrate. At present, however, the measurement methods and porous media used for investigating the permeability are so different that neither ...
Gang Li, Chao Li, Xiaosen Li, Na Wei
doaj   +1 more source

Variability in aerobic methane oxidation over the past 1.2 Myrs recorded in microbial biomarker signatures from Congo fan sediments [PDF]

, 2014
Methane (CH4) is a strong greenhouse gas known to have perturbed global climate in the past, especially when released in large quantities over short time periods from continental or marine sources.
Wabakanghanzi, JN, Spencer, Robert G. M., Dinga, Bienvenu, Spencer, Robert, Handley, Luke, Talbot, H.M., Wagner, T, Schefuß, E., Spencer-Jones, CL, Spencer-Jones, Charlotte, Talbot, Helen, Wagner, T., Spencer-Jones, C.L., Bienvenu, DJ, Bienvenu, D.J., Mann, P.J., Poulsen, JR, Wabakanghanzi, J.N., Handley, L, Wagner, Thomas, Talbot, Helen M., Wabakanghanzi, Jose N., Mann, Paul, Spencer-Jones, Charlotte L., Schefuß, Enno, Wagner, Thomas; id_orcid, Talbot, HM, Poulsen, John R., Spencer, R.G.M., Wabakanghanzi, Jose, Poulsen, J.R., Mann, PJ, Spencer, RGM, Spencer, Robert G.M., Dinga, Bienvenu Jean, Poulsen, John, Schefuß, E, Mann, Paul J., Handley, L.   +38 more
core   +1 more source

Roles of Activated Carbon and Tetrahydrofuran on Methane Hydrate Phase Equilibrium

Chemical Engineering Transactions, 2014
This work studied the effects of activated carbon and tetrathydrofuran (5.56 mol % THF) on methane hydrate phase equilibrium and hydrate dissociation. The hydrate formation was carried out in the quiescent condition and close system at 4 °C.
A. Siangsai, P. Rangsunvigit, B. Kitiyanan, S. Kulprathipanja   +3 more
doaj   +1 more source

Could changing ocean circulation have destabilized methane hydrate at the Paleocene/Eocene boundary? [PDF]

, 2002
During the Paleocene-Eocene Thermal Maximum (PETM, ~55 Ma), marine and terrestrial carbon isotope values exhibit a negative shift of at least 2.5‰, indicative of massive destabilization of marine methane hydrates, releasing ~1100 gigatonnes of methane ...
Marotzke, J. ; https://orcid.org/, Bice, K.L., Marotzke, J., Bice, K.   +3 more
core   +1 more source

Estimation and measurement of permeability inside methane hydrate mimicking porous media

Journal of Fluid Science and Technology, 2016
The objective of this study is to mimic methane hydrate cores at atmospheric pressure conditions with the same permeability as oceanic methane hydrate cores. This became possible by freezing a solution of water, ethanol, and sodium bicarbonate in Toyoura
Guillaume LACAILLE, Hikaru YAMADA, Eita SHOJI, Lin CHEN, Hiroki GONOME, Junnosuke OKAJIMA, Atsuki KOMIYA, Shigenao MARUYAMA   +7 more
doaj   +1 more source

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

Angewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean, Nicolás Montesdeoca, Gilles Berger, Johannes Karges   +3 more
wiley   +1 more source

Gas hydrate growth morphologies and their effect on the stiffness and damping of a hydrate bearing sand

, 2008
Using a specially constructed Gas Hydrate Resonant Column (GHRC), the University of Southampton explored different methods of hydrate synthesis and measured the properties of the resulting sediments, such as shear wave velocity (Vs), compressional wave ...
Kingston, Emily, Priest, Jeff, Clayton, Chris R.I., Priest, Jeffery, Clayton, Chris   +4 more
core   +1 more source

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source

Experimental Verification of Methane Replacement in Gas Hydrates by Carbon Dioxide

Chemical Engineering Transactions, 2013
If the conversion of methane hydrate to carbon dioxide hydrate with the net recovery of methane could occur, this would be quite attractive as an innovative method of both methane production and carbon dioxide storage.
Y. Seo, S. Lee, J. Lee
doaj   +1 more source

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

Carbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar, Seul‐Yi Lee, Roop L. Mahajan, Soo‐Jin Park   +3 more
wiley   +1 more source