Illustration showing methane chimney from sea floor to surface.
A methane chimney or gas chimney is a rising column of natural gas, mainly methane, within a water or sediment column. The contrast in physical properties between the gas phase and the surrounding water makes such chimneys visible in oceanographic and geophysical data. In some cases, gas bubbles released at the seafloor may dissolve before they reach the ocean surface, but the increased hydrocarbon concentration may still be measured by chemical oceanographic techniques.
A methanechimney or gas chimney is a rising column of natural gas, mainly methane, within a water or sediment column. The contrast in physical properties...
Methane clathrate (CH4·5.75H2O) or (4CH4·23H2O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate...
keep rainwater out of the exterior of the chimney; rain in the chimney is a much greater problem in chimneys lined with impervious flue tiles or metal...
existence of methane at relatively shallow depths and extensive areas of gas hydrates have been mapped in this region. Also, gas chimneys have been reported...
of ECL: Salanpur and Mugma. ONGC’s preliminary assessment of coal-bed methane indicates that four Damodar Valley coalfields – Jharia, Bokaro, North Karanpura...
terpenoids, alcohols, and carbonyls (methane and carbon monoxide are generally not considered). Not counting methane, biological sources emit an estimated...
serpentinization, abiotically producing many simple molecules such as methane and hydrogen which are fundamental to microbial life. As such it has generated...
and other greenhouse gas emissions. An important source of anthropogenic methane comes from the treatment and storage of organic waste material including...
a mixture of firedamp (mostly methane) and air. These ingress tubes were physically separate from the exhaust chimney. The body of the lamp was lengthened...
components of sewage. Sewer gases may include hydrogen sulfide, ammonia, methane, esters, carbon monoxide, sulfur dioxide and nitrogen oxides. Improper...
cell Solar chimney Solar panel Solar energy Solar power satellite Solar thermal energy Solar updraft tower – large version of the solar chimney concept Solar...
(1972). "Measurements of heats of combustion by flame calorimetry. Part 8.—Methane, ethane, propane, n-butane and 2-methylpropane". Journal of the Chemical...
to flat-lying rock strata, generally incompetent rock, the presence of methane gas, and coal dust. Most of the deaths these days occur in developing countries...
Hydrothermal vent plumes contain high concentrations of methane and carbon monoxide with methane concentration reaching 107 times of the surrounding ocean...
modern-day pizza ovens. Later Scandinavian stoves featured a long, hollow iron chimney with iron baffles constructed to extend the passage of the leaving gases...
bridgework and railroad ties, see image). Samples may be found commonly inside chimney flues, where the coal or wood burns under variable conditions, producing...
form in chimneys in domestic houses possessing one or more fireplaces. If a large deposit collects in one, it can ignite and create a chimney fire. Regular...
precursor coke is expensive, whereas syngas uses cheaper precursor, mainly methane from natural gas. Synthesis gas is made by passing steam over a red-hot...
The brine often contains high concentrations of hydrogen sulfide and methane, which provide energy to chemosynthetic organisms that live near the pool...
of wooden logs (e.g. seasoned oak) leaning in a circle against a chimney. The chimney consists of 4 wooden stakes held up by some rope. The logs are completely...
been attempted on a concrete chimney and it was also the tallest chimney he had ever attempted to fell. However the chimney unexpectedly collapsed the previous...
time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas. What are the implications of these dramatic developments...
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