Given that most of the gaseous constituents of industrial chimneys are usually carbon dioxide which is one of the most important greenhouse gases. It seems that the hydration process is one of the newest methods for the separation of this gas from gaseous mixtures. In the gas hydrate formation industry, in addition to disadvantages, there are some advantages such as gas separation, transmission...

Cyclopentane hydrate interparticle adhesion force measurements were performed in pure cyclopentane liquid using a micromechanical force apparatus. Cyclopentane hydrate adhesion force measurements were compared to those of cyclic ethers, tetrahydrofuran and ethylene oxide, which were suspected to be cyclic ether-lean and thus contain a second ice phase. This additional ice phase led to an over-p...

[1] The interaction among water molecules, guest gas molecules, salts, and mineral particles determines the nucleation and growth behavior of gas hydrates in natural sediments. Hydrate of tetrahydrofuran (THF) has long been used for laboratory studies of gas hydrate-bearing sediments to provide close control on hydrate concentrations and to overcome the long formation history of methane hydrate...

Large reservoirs of methane hydrate exist in arctic permafrost and seafloor sediments. The physical properties of the permafrost and marine sediments are believed to affect hydrate stability. In 2004, Uchida et al. investigated the decomposition of methane hydrates formed in porous media using a laboratory pressure facility. They observed a shift of the hydrate stability curve and concluded tha...

Hydrate-based gas separation is often investigated using batch or semi-batch operations. To increase the throughput of mixture without increasing apparatus volume, it preferable to perform a continuous operation hydrate-based separation. Therefore, we proposed flow-type for performing formation with passing gaseous and subsequently decomposition hydrate particles. Characteristics multiple fluid...

The paper considers the process of hydrate-paraffin deposits formation in oil wells. Due to research with author's specially designed laboratory equipment – an experimental installation containing a technological unit and information-measuring system, most favorable pressure-temperature conditions hydrate wide range pressure (0.1–120 MPa) temperature (from –20 +80 °C) were determined. results m...

in this study, mass transfer coefficients (mtc’s) of natural gas components during hydrate formation are reported. this work is based on the assumption that the transport of gas molecules from gas phase to aqueous phase is dominant among other resistances. several experiments were conducted on a mixture of natural gas at different pressures and temperatures and the consumed gas was monitored an...

6 A two-dimensional model of a passive continental margin was adapted to 7 the simulation of the methane cycle on Siberian continental shelf and 8 slope, attempting to account for the impacts of glacial / interglacial 9 cycles in sea level, alternately exposing the continental shelf to freezing 10 conditions with deep permafrost formation during glacial times, and 11 immersion in the ocean in i...

Methane hydrates (MHs) are present in large amounts in the ocean floor and permafrost regions. Methane and hydrogen hydrates are being studied as future energy resources and energy storage media. To develop a method for gas production from natural MH-bearing sediments and hydrate-based technologies, it is imperative to understand the thermal properties of gas hydrates. The thermal properties' m...