CAS ES 105 Lecture Notes - Lecture 18: Humphry Davy, Methane Clathrate, Clathrate Hydrate
24 Dec 2015
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Document Summary
489: methane trapped in marine sediments as a hydrate represents an immense carbon reservoir. Molecular composition: crystalline solid consisting of gas molecules (usually methane) surrounded by a cage of water molecules. Since the 1970"s, naturally occurring gas hydrate, mainly methane hydrate, has been recognized worldwide, where pressure and temperature conditions stabilize the hydrate structure. It is present in oceanic sediments along continental margins and in polar continental settings. Flaming gas hydrate: a mineral that burns, gas hydrates may represent one of the world"s largest untapped reservoirs of energy and, according to some estimates, have the potential to meet global energy needs for the next thousand years. Destabilized gas hydrate may also affect climate through the release of methane, a greenhouse gas. Synthetic gas hydrate: gas hydrates were known first from their problematic occurrence as blockages in gas pipelines. Carolina deposits: the carolina trough is a significant offshore oil and gas frontier area where no wells have been drilled.
