Method for use of the synthesis gas that comes from a gasifier
A synthesis gas (H 2 +CO) that comes from a gasifier is supposed to be used in more efficient and optimal manner, particularly for generating electricity, whereby then, CO 2 that occurs at the same time is supposed to be passed to storage. This is achieved in that—the synthesis gas (H 2 +CO) and oxygen (O 2 ) from an air separation system are combusted in a burner, and relaxed by way of a gas turbine (driving a generator), —CO 2 is separated in the waste gas stream and passed to a compressor driven by the gas turbine, and—passed to CO 2 storage as compressed CO 2 .
1. Method for use of a synthesis gas (H 2 +CO) that comes from a gasifier,
wherein
the synthesis gas (H 2 +CO) and oxygen (O 2 ) from an air separation system are combusted in a burner, and relaxed by way of a gas turbine, the gas turbine driving a generator,
CO 2 is separated in the waste gas stream and passed to a compressor driven by the gas turbine, and
passed to CO 2 storage as compressed CO 2 gas, and
part of the compressed CO 2 gas is passed to the burner for temperature control.
2. Method according to claim 1 , wherein the part of the compressed CO 2 gas is passed to the synthesis gas stream or to the O 2 stream from the air separation system ahead of the burner.
3. Method according to claim 1 , wherein heat for operation of a steam turbine is taken from the waste gas stream from the gas turbine, by way of a heat exchanger.