effect of dispersants on the hydrate morphologies of
The effect of morphology on the overall physical
morphologies. Thus the effect of hydrate morphology on submarine sediments is poorly understood. This justifies the need for the development of a new modelling approach that can conceptualise and model more complex morphologies such as grain-displacing morphologies by taking geometry explicitly into account
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Gas hydrate growth morphologies and their effect on the
Jul 06 2008 · Kingston Emily Clayton Chris and Priest Jeff (2008) Gas hydrate growth morphologies and their effect on the stiffness and damping of a hydrate bearing sand. 6th International Conference on Gas Hydrates (ICGH 2008) Vancouver Canada. 0610 Jul 2008. 8 pp.
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NATIONAL RESEARCH COUNCIL REPORT KEY FINDINGS
the summary of Oil Spill Dispersants Effi cacy and Effects are available from the National Academies Press 500 Fifth Street NW Washington D.C. 20001 (800) nap.edu. breaking up oil slicks into smaller droplets exposes more of the toxic compounds in oil such as polynu-
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Surfactant Effects on the Crystal Growth of Clathrate
All the surfactants were soluble in cyclopentane. The crystalline morphology and crystal growth behavior of the hydrate at the interface were found to be substantially affected by the addition of all surfactants. The size of the individual hydrate crystals in the surfactant system was larger than those in the pure cyclopentane system.
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The effect of surface dispersants on electrodeposited
Jan 01 2016 · Stable antimony nanoparticles with various particle morphologies and particle sizes were fabricated by electrodeposition method with different surface dispersants. The particle phase morphology and size of resulting antimony particles were analysed. The results show that the surface dispersant has a remarkable effect on particle size morphology and aggregation of the antimony
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Investigation into THF hydrate slurry flow behaviour and
The effect of liquid loading (LL) and an anti-agglomerant (AA) on morphology and temperature in three cases were studied. The morphologies in each stage were compared for the three cases. Hydrate conversion was calculated according to the liquid and solid volume proportion in these morphologies.
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Effects of dispersant content and pH on dispersion of
Jun 15 2020 · The dispersants significantly affected the moisture distribution of the coal water suspension by increasing surface adsorption water and decreasing intergranular water as well as capillary water. Those works focused on the effect of the polymer dispersants on the suspensions 25 .
Get PriceEffect of dispersants on the hydrate morphologies of
Jan 01 2016 · The results showed that the cement hydrate morphologies were closely related to the types of dispersants used. With naphthalene sulfonate formaldehyde condensate (FDN) and sodium tripolyphosphate (STPP) as dispersants the cement hydrate of C 3 AH 6 obtained anomalistic shapes and the AH 3 particles showed a diameter of not more than 1 μm.
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GAS HYDRATE GROWTH MORPHOLOGIES AND THEIR EFFECT
To model the effect of gas hydrate on sediment elastic moduli we use two separate assumptions (a) hydrate modifies the pore fluid elastic properties without affecting the frame and (b) hydrate
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The influence of dispersants that contain polyethylene
ABSTRACT This study investigated the effects of dispersants on the electrical resistivity of silver pastes. The dispersants in the polyoxy ethylene‐p‐(1 1 3 3‐tetramethylbutyl) phenyl ethers system
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GAS HYDRATE GROWTH MORPHOLOGIES AND THEIR
GAS HYDRATE GROWTH MORPHOLOGIES AND THEIR EFFECT ON THE STIFFNESS AND DAMPING OF A HYDRATE BEARING SAND Emily Kingston ∗∗∗∗ Chris Clayton and Jeff Priest School of Civil Engineering and the Environment University of Southampton Highfield Southampton SO17 1BJ UNITED KINGDOM ABSTRACT
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OBSERVED GAS HYDRATE MORPHOLOGIES IN MARINE
The largest impact of the discovery of common grain-displacing gas hydrate morphology is on the quantification of gas hydrate using remote geophysical techniques.
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OBSERVED GAS HYDRATE MORPHOLOGIES IN MARINE
The largest impact of the discovery of common grain-displacing gas hydrate morphology is on the quantification of gas hydrate using remote geophysical techniques.
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Gas hydrate growth morphologies and their effect on the
BibTeX INPROCEEDINGS Kingston08gashydrate author = Emily Kingston and Chris Clayton and Jeff Priest and A Dimensionless Stiffness Constant title = Gas hydrate growth morphologies and their effect on the stiffness and damping of a hydrate bearing sand booktitle = In Proceedings of the 6th International Conference on Gas Hydrates year = 2008
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The Role of Gas Hydrates during the Release and Transport
o Once hydrate forms on a bubble it is stable at lower pressures. Complete decomposition of the hydrate occurs as the vapor/liquid/hydrate (VLH) equilibrium pressure for the gas at the temperature of the system is approached. o New insights were gained into hydrate
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Identifying the morphologies of gas hydrate distribution
Gas hydrate with different morphologies were recovered at site 16 fracture-filling gas hydrate in upper zone and pore-filling gas hydrate in lower zone (figure 10) (Sha et al 2015). The average saturations of these two hydrate zones are 42 and 50 respectively.
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Xiangcheng LI Professor (Full) Ph.D Wuhan University
This research studied the effects of several dispersants on the morphologies of cement hydrates and properties of refractory castables. The results showed that the cement hydrate morphologies were
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Gas hydrate growth morphologies and their effect on the stiffness and damping of a hydrate bearing sand July 2008 Conference 6th International Conference on Gas Hydrates (ICGH 2008)
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GAS HYDRATE GROWTH MORPHOLOGIES AND THEIR EFFECT
GAS HYDRATE GROWTH MORPHOLOGIES AND THEIR EFFECT ON THE STIFFNESS AND DAMPING OF A HYDRATE BEARING SAND Emily Kingston∗ Chris Clayton and Jeff Priest School of Civil Engineering and the Environment University of Southampton Highfield Southampton SO17 1BJ UNITED KINGDOM ABSTRACT Using a specially constructed Gas Hydrate Resonant Column
Get PriceThe influence of dispersants that contain polyethylene
Jul 12 2014 · This study investigated the effects of dispersants on the electrical resistivity of silver pastes. The dispersants in the polyoxy ethylene‐p‐(1 1 3 3‐tetramethylbutyl) phenyl ethers system contain several polyethylene oxide (PEO) groups (m) which are affect the viscosity and electrical resistivity of the silver pastes.The morphologies of the cured silver pastes for different dispersants
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GAS HYDRATE GROWTH MORPHOLOGIES AND THEIR EFFECT
To model the effect of gas hydrate on sediment elastic moduli we use two separate assumptions (a) hydrate modifies the pore fluid elastic properties without affecting the frame and (b) hydrate
Get PriceGeochemistry Geophysics Geosystems
The distinction between different pore-fluid displacing hydrate morphologies was initially deduced from the effect of hydrate morphology on elastic wave velocity (e.g. Ecker et al. 1998). Cementing morphology occurs when hydrate bonds the host mineral grain contacts (Ecker et al. 1998) the
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Effect of hydrate formation on the elastic properties of
Natural gas hydrates exist in unconsolidated marine or permafrost sediments and can adopt many morphologies. Hydrates can occur in shapes of nodules veins layers or finely disseminated between sediment grains. In the latter configuration hydrate may cement sediment grains act as a load-bearing sediment component or occur free-floating in
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An experimental investigation on methane hydrate
Dec 01 2020 · Methane hydrate formation is interpreted as a dynamic process favoring the Ostwald ripening. Furthermore morphologies and pore habits of methane hydrates under excess-gas and excess-water conditions are discussed. Some recommendations are finally given for further studies on methane hydrates-bearing sediments via XRCT or SXRCT.
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The effect of surface dispersants on electrodeposited
Jan 01 2016 · Stable antimony nanoparticles with various particle morphologies and particle sizes were fabricated by electrodeposition method with different surface dispersants. The particle phase morphology and size of resulting antimony particles were analysed. The results show that the surface dispersant has a remarkable effect on particle size morphology and aggregation of the antimony
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Effect of water of crystallization on the dissolution
Effect of water of crystallization on the dissolution efficiency of molten zinc chloride hydrate salts during the pre‐treatment of corncob biomass. There were significant differences in the crystallinity indices and surface morphologies between the untreated and treated biomass.
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OBSERVED GAS HYDRATE MORPHOLOGIES IN MARINE
The largest impact of the discovery of common grain-displacing gas hydrate morphology is on the quantification of gas hydrate using remote geophysical techniques.
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Gas hydrate growth morphologies and their effect on the
BibTeX INPROCEEDINGS Kingston08gashydrate author = Emily Kingston and Chris Clayton and Jeff Priest and A Dimensionless Stiffness Constant title = Gas hydrate growth morphologies and their effect on the stiffness and damping of a hydrate bearing sand booktitle = In Proceedings of the 6th International Conference on Gas Hydrates year = 2008
Get PriceEffect of water of crystallization on the dissolution
Effect of water of crystallization on the dissolution efficiency of molten zinc chloride hydrate salts during the pre‐treatment of corncob biomass. There were significant differences in the crystallinity indices and surface morphologies between the untreated and treated biomass.
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