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Modelling gas hydrate formation

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by

Jakob Knistenser

on 8 December 2013

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Transcript of Modelling gas hydrate formation

H O + CH
2
4
Modelling gashydrate formation
It burns = $ (! ?)
25 times stronger
green house gas
than CO
2
Interesting ?
Study area
Sediment+Organic matter
Oxidized zone
Sulfide reduction zone
Main zone of methane production

and

Gas hydrate formation
Flux of
The flux and concentration of organic matter is controlled by the fluxes of IRD, clay and the organic productivity
Organic material is broken down by oxidation using O
Organic material are boken down by sulfate reduction
2
2C(H O) + SO =>2HCO +H S
2
4
2-
3
-
2
(POC)
POC loss within this zone can be solved by
f =exp(3.2*age -3.2*(t +age ) )
0
1/20
exp
0
1/20
MI
But in this is neglected, as the oxidized zone is thin and the measured TOC i assumed to be from bellow this zone
Age of organic matter bellow the oxidized zone
exposure time
Organic matter are broken down into CO and H by fermentation methane are then formed by methanogenesis
2
2
CO + 4H => CH +2H O
2
2
2
2
The fraction of organic matter converted into methane are calculated by
Age of organic matter bellow the bioturbated zone
exposure time
Disolved inorganic carbon
Dissolved CH
Inhibition Constant
4
Full transcript