CO2 hydrate formation and dissociation are the fundamental processes for investigating hydrate-based carbon storage. To better understand phase behaviors in presence of surfactant solid additives, this study reports effects Sodium Dodecyl Sulfate (SDS) micron Cu particles on hydrates porous quartz sands a lab-scale reactor. This research is part wider focused defining properties produced via ga...

I t has been shown (1, 2) that the general cell inhibitors urethane, chloral hydrate, and sulfanilamide inhibit cell division of fertilized Arbacia eggs, and that this inhibition results from an inhibition of the specific fraction of the cell respiration upon which cell division depends. I t was considered to be of interest to study the effects of the chemotherapeutic agent, penicillin, on thes...

Gas clathrate hydrates were first identified in 1810 by Sir Humphrey Davy. However, it is believed that other scientists, including Priestley, may have observed their existence before this date. They are solid crystalline inclusion compounds consisting of polyhedral water cavities which enclathrate small gas molecules. Natural gas hydrates are important industrially because the occurrence of th...

Methane hydrate nucleation and growth in porous model carbon materials illuminates the way towards the design of an optimized solid-based methane storage technology. High-pressure methane adsorption studies on pre-humidified carbons with well-defined and uniform porosity show that methane hydrate formation in confined nanospace can take place at relatively low pressures, even below 3 MPa CH4, d...

In the title salt hydrate, C2H10N2 (2+)·C12H10N2O6 (2-)·4H2O, each of the ions is located about a centre of inversion and the asymmetric unit is completed by two water molecules in general positons. In the crystal, the cations, anions and water mol-ecules are connected by O-H⋯O and N-H⋯O hydrogen bonding into a three-dimensional network.

Experimental and field observations evidence the effects of capillarity in narrow pores on inhibiting thermodynamic stability gas hydrates controlling their saturation. Thus, precise estimates hydrate global inventory require models that accurately describe sediments. Here, an equilibrium model for formation sediments accounts capillary inhibition is developed validated against experimental dat...

The Iġnik Sikumi Gas Hydrate Exchange Field Trial was conducted by ConocoPhillips in partnership with the U.S. Department of Energy, the Japan Oil, Gas, and Metals National Corporation, and the U.S. Geological Survey within the Prudhoe Bay Unit on the Alaska North Slope (ANS) during 2011 and 2012. The 2011 field program included drilling the vertical test well and performing extensive wireline ...

The effects of porous medium heterogeneity on methane hydrate formation, water flow through the heterogeneous hydrate-bearing sand, and hydrate dissociation were observed in an experiment using a heterogeneous sand column with prescribed heterogeneities. X-ray computed tomography (CT) was used to monitor saturation changes in water, gas, and hydrate during hydrate formation, water flow, and hyd...