Results 271 to 280 of about 208,381 (311)

Hydration of 2-cyanoethyl ethers of acetylenic alcohols. Alcoholysis of the hydration products

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1958
1. The hydration of 2-cyanoethyl ethers of various acetylenic alcohols was carried out. 2. The resulting 2-cyanoethyl ethers of α-hydroxy ketones were converted into the corresponding 2-(methoxycarbonyl) ethyl ethers.
I. N. Nazarov, G. A. Shvekhgeimer
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Characterization of hydration products of mineral trioxide aggregate

International Endodontic Journal, 2008
AbstractObjective  To characterize the hydration products of white mineral trioxide aggregate (MTA).Methodology  Mineral trioxide aggregate, white Portland cement and bismuth oxide were evaluated using X‐ray diffraction (XRD) analysis and Rietveld XRD. The cements were tested un‐hydrated and after hydration and curing for 30 days at 37 °C.
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The Influence of Amylopectin on the Hydration Products of Cement

Applied Mechanics and Materials, 2014
Glutinous rice porridge is widely used to mortar formulations in ancient China, and it is significant to understand the interaction between amylopectin and cement pastes. X-ray diffraction analysis, field emission scanning electron microscope (FESEM) analysis and atomic force microscopy (AFM) analysis are used to investigate hydration products in the ...
Hua Shan Yang, Yu Jun Che, Zhen Liao, Tian Lan   +3 more
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Production And Transportation Of Natural Gas Hydrate

Technical Meeting / Petroleum Conference of The South Saskatchewan Section, 1999
Abstract The storage of natural gas in hydrates has been investigated since it was discovered that they store large quantities of gas. Dtflerent storage methods have been suggested: either keeping hydrate under low temperature or under pressure.
R. Amin, M. Pogson, A. Jackson
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Production of Sedimentary Methane Hydrates by Depressurization

SPE Bergen One Day Seminar, 2016
Abstract The voluminous amounts of hydrates found in nature are distributed across all continents and pose a huge possibility for future energy harvest. In fact, the total amount of energy stored in hydrates is predicted to be in the same range as conventional fossil fuels combined.
Stian Almenningen, Josef Flatlandsmo, Martin A. Fernø, Geir Ersland   +3 more
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Hydrate Problem in the Oil Production Industry

SPE International Symposium on Oilfield Chemistry, 1999
Abstract The paper briefly presents some important aspects related to natural gas hydrates. Some theoretical aspects in connection with the thermodynamic and kinetic mechanisms of hydrates formation are reviewed, following which the methods for controlling their generation during drilling, gas production, transportation ...
B. Buzatoiu, V. V. Popp, I. R. Loas
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Hydrate Inhibition in Headers with No Production Flow

SPE Annual Technical Conference and Exhibition, 2004
Abstract When deep-water subsea production is shut in for long periods, measures are normally taken to prevent the formation of hydrate blockages in the flowline network. One common inhibition method is to inject methanol into the jumpers, manifold headers, and well bores.
B. Herrmann, C. Bargas, S. J. Svedeman, J. C. Buckingham   +3 more
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A review on gas hydrate production feasibility for permafrost and marine hydrates

Journal of Natural Gas Science and Engineering, 2022
Patrick Edward Chibura, Wei Zhang, Anjian Luo, Jinjie Wang   +3 more
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PRODUCTION STRATEGIES FOR MARINE HYDRATE RESERVOIRS

2016
Large quantities of natural gas hydrate are present in marine sediments along the coastlines of many countries as well as in arctic regions. This research is aimed at assessing production of natural gas from the marine deposits. We had developed a multiphase, multicomponent, thermal, 3D simulator in the past, which can simulate production of hydrates ...
Phirani, J., Mohanty, K. K.
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INVESTIGATION ON A NOVEL REACTOR FOR GAS HYDRATE PRODUCTION

2011
Gas hydrates have a large capacity for the storage of gases and are an attractive method for gas filtration and transportation. However, hydrate formation is usually controlled by the rate of crystallization and thus it can be a slow process. A technology that will rapidly and continuously form hydrate is necessary for scale-up. A novel reactor with an
BRINCHI, Lucia, CASTELLANI, BEATRICE, COTANA, Franco, FILIPPONI, MIRKO, ROSSI, Federico, SAVELLI, Gianfranco   +5 more
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