Alstom Technology Limited

General Electric Technology Gmbh

Gisbert Wolfgang Kaefer

Eribert Benz

Andreas Brautsch

Gerhard Heinz

Michal Tadeusz Bialkowski

Felix Güthe

Thomas Wild

Gian-Luigi Agostinelli

Hellmuth Brueggemann

Friedemann Kendel

Staffan Jönsson

Patrick Moenckert

Turgay Pekdemir

Hardy Rauchfuss

A power plant includes a gas turbine unit adapted to feed flue gases into a boiler of a steam turbine unit, to be then diverted into a recirculated flow and discharged flow. The recirculated flow is mixed with fresh air forming a mixture that is fed into a gas turbine unit compressor. The discharged flow is fed into a COcapture unit that is an amine based or chilled ammonia based COcapture unit. A cooler for the flue gases can be configured as a shower cooler located upstream of the COcapture unit. The plant can also include a washing unit to neutralize ammonia drawn by the flue gases that can be fed with nitric acid gathered at the cooler.

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A flue gas stream processing system includes a fuel reactor for combusting a fuel to generate a flue gas stream including water vapor, carbon monoxide and carbon dioxide. The system includes an oxidation catalyst downstream of the fuel reactor, the oxidation catalyst configured to receive the flue gas stream and oxidize the carbon monoxide to form a carbon dioxide rich flue gas stream, and a processing unit to liquefy carbon dioxide in the carbon dioxide rich flue gas stream and generate an exhaust gas.

System and method for generating a carbon dioxide stream

A gas stream containing e.g. molecular hydrogen is used for the regeneration of a catalyst for NOx and SO2 removal from the flue gas of a gas turbine. In order to reduce the consumption of regeneration gas, the gas inlet is located between the SCOSOx catalyst () and the SCONOx catalyst (). The regeneration gas leaves the catalyst chamber upstream of the SCOSOx catalyst and is recycled. For the regeneration of the SCONOx catalyst and to keep SO2 containing gas from entering the SCONOx catalyst, a second regeneration gas inlet is located downstream of the SCONOx catalyst. The regeneration gas entering the catalyst chamber through this port passes the SCONOx () and the SCOSOx catalyst (). The direction of the flow in the SCONOx catalyst can also be reversed. In another example, regeneration gas outlets are located both upstream of the SCOSOx and downstream of the SCONOx catalyst. But, only the regeneration gas from the SCONOx catalyst is recycled.

Process for the regeneration of a catalyst plant and apparatus for performing the process

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Birmenstorf, Switzerland

Gisbert Wolfgang Kaefer