Kraftwerk Union Aktiengesellschaft

Konrad Goebel

Ulrich Schiffers

Rainer Muller

Hans-Chris Trankenschuh

A combined gas and steam turbine power generating station includes: a gas turbine part having a gas turbine and a combustion chamber connected to the gas turbine; a coal gasifier being connected upstream of the gas turbine part and having a raw gas side; a heat exchanger system being connected downstream of the raw gas side of the coal gasifier and including a first high-pressure steam generator, a raw gas/pure gas heat exchanger and a low-pressure steam generator; a gas purifier being connected downstream of the heat exchanger system and having a pure gas line leading to the combustion chamber of the gas turbine part; and a steam turbine power generating station part including a waste heat steam generator facility connected to the gas turbine of the gas turbine part for receiving exhaust gas therefrom, the waste heat steam generator facility including a second high-pressure steam generator, first heating surfaces and a second heating surface connected downstream of the first heating surfaces, the steam turbine power generating station part also including a steam turbine having a low-pressure steam feed and a feedwater line connected to the steam turbine having at least one first leg feeding the first heating surfaces with given pressure and a second leg feeding the second heating surface with pressure lower than the given pressure, and the second heating surface being connected as another low-pressure steam generator having an outlet side connected to the low-pressure steam feed.

Combined gas and steam turbine power generating station

Clean-gas continuous-flow intermediate storage plant having at least one high-pressure accumulator, at least one low-pressure accumulator and at least one pressure-increasing compressor connected therein, and having a connection with a gas distribution line, comprising an input line to the low-pressure accumulator, and an output line from the high-pressure accumulator both connected to the gas distribution line, a connecting line connecting the low-pressure accumulator and the high-pressure accumulator to one another and having at least one pressure-increasing compressor inserted therein, and valves built into the input line to the low-pressure accumulator and the output line from the high-pressure accumulator as well as into an output line from the low-pressure accumulator and an input line to the high-pressure accumulator and respective pressure sensors connected to the valves for controlling the valves.

Clean-gas continuous-flow intermediate storage or accumulator plant

Medium-load power generating station with an integrated coal gasification plant, a gas turbine power generating station part connected to the coal gasification plant, a steam power generating station part connected to the raw gas heat exchanger plant of the coal gasification plant, a methanol synthesis plant having a plurality of modules connected in parallel to each other, and a purified gas distribution system which connects the methanol synthesis plant to the gas turbine power generating station part and which includes a purified gas continuous flow interim storage plant and is connected on the gas side to the raw gas heat exchanger plant. The methanol synthesis plant is associated, for hydrogen enrichment, to a 'cooler-saturator loop' which is connected to the raw gas heat exchanger plant and consists of the saturator, a converting plant, cooler and following gas purification plant. In one mode of operation, a water electrolysis plant is associated with the methanol synthesis plant and its hydrogen line is connected to the methanol synthesis plant, and its oxygen line is connected to the coal gasifier.

Medium-load power generating station with an integrated coal

Combined gas turbine/steam turbine plant, in which the exhaust gas line of the gas turbine block containing an air compressor, combustion chamber, gas turbine and generator is connected on the primary side to a steam generator which, in turn, comprises parts of the steam turbine block which also contains a high pressure and a low pressure turbine, a condenser, a feedwater tank and a feedwater pump. The combustion chamber of the gas turbine block is connected to the output of a coal gasification plant, the air separation unit which has an outlet for the separated nitrogen and the gasifier. The gasifier is followed by a steam generator for utilizing the raw gas heat and a heat exchanger for heating the purified gas by the raw gas. The steam generator arranged ahead of the raw gas/purified gas heat exchanger is designed as a high pressure steam generator, the secondary output of which is connected to the output of the steam generator of the steam turbine block. The raw-gas/purified-gas heat exchanger is followed by a low pressure steam generator, the secondary output of which is connected to the low pressure part of the steam turbine. The nitrogen outlet of the air separation unit located in the coal gasification plant is connected exclusively to the purified gas line leading to the combustion chamber or to the burners in the combustion chamber.

Combined gas-turbine plant preceded by a coal gasification plant

Medium-load power generating plant with an integrated coal gasification plant, with a gas-turbine power generating plant part connected to the coal gasification plant, with a steam generating plant part connected to the raw-gas heat exchanger installation of the coal gasification plant, and with a methanol synthesis plant. The methanol synthesis plant has parallel-connected modules and is connected to the gas-turbine power generating plant part via a central purified gas distribution system which includes a purified gas continuous-flow interim storage plant connected parallel to the pure gas supply line and is connected on the gas side to the raw-gas heat exchanger installation.

Medium-load power-generating plant with integrated coal gasification

Aspirating system for the compressor of a gas turbine disposed next to a power-producing plant on the same shaft. The system has two separated suction canals extending laterally next to the powder producing plant. A transition part conveys the air from the suction canals to an axial intake opening in the compressor. The transition part has an inner shell of a truncated cone and outer shell of the truncated cone and two vertical baffles inclined toward each other, disposed between the inner shell and outer cone shell with the baffles touching each other in front of the intake opening of the compressor and terminating there. A transfer canal part adapts the cross section of each such canal facing the transition part to the entrance cross section of the transition part.

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Erlangen, Germany

Konrad Goebel