Carbon dioxide removal in indirect gasification - SGC
Carbon dioxide removal in indirect gasification - SGC
Carbon dioxide removal in indirect gasification - SGC
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<strong>SGC</strong> Rapport 2013:277<br />
scrubber is twice that of the one reported here (s<strong>in</strong>ce the am<strong>in</strong>e solution is composed<br />
of 50% water). The amount of the gas that was absorbed <strong>in</strong> the am<strong>in</strong>e solution<br />
was calculated as a function of pressure at 25°C and is shown <strong>in</strong> Figures 27-<br />
29. The temperature of 25°C was chosen to give a conservative estimate of the<br />
maximum amount absorbed <strong>in</strong> the am<strong>in</strong>e solution. In reality the absorbed amount<br />
will be lower s<strong>in</strong>ce the temperature of the liquid will be higher than 25°C, <strong>in</strong> the<br />
range of 50-55°C depend<strong>in</strong>g on the amount of carbon <strong>dioxide</strong> absorbed.<br />
Amount absorbed of <strong>in</strong>go<strong>in</strong>g moleflow (%)<br />
0.18<br />
0.16<br />
0.14<br />
0.12<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
0.02<br />
CO<br />
CH 4<br />
H 2<br />
0<br />
0 1 2 3<br />
Total pressure (bar)<br />
4 5 6<br />
Figure 27. Amount of gas phase component that will be absorbed by the am<strong>in</strong>e<br />
solution as function of the total pressure for the 10 MWth case, after methanation.<br />
58 Svenskt Gastekniskt Center AB, Malmö – www.sgc.se
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