Method and device for generating fuel for a gas turbine
A method is provided for fractionating a feed gas containing hydrogen and carbon dioxide, from which feed gas carbon dioxide is largely selectively removed by scrubbing in a first gas scrubber using a sulphur-free scrubbing agent, wherein a scrubbing agent stream laden with carbon dioxide and co-abs...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A method is provided for fractionating a feed gas containing hydrogen and carbon dioxide, from which feed gas carbon dioxide is largely selectively removed by scrubbing in a first gas scrubber using a sulphur-free scrubbing agent, wherein a scrubbing agent stream laden with carbon dioxide and co-absorbed hydrogen is obtained which is subsequently expanded in an expansion vessel in order to convert co-absorbed hydrogen into the gas phase. The characterizing feature of the method is that the hydrogen-containing gas phase is drawn off from the expansion vessel and admixed with a sulphur-free gas mixture containing hydrogen and carbon dioxide, which gas mixture arises in a second gas scrubber operated in parallel to the first as a product at a pressure which is lower than the pressure of the feed gas. |
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