WO2017108252A1

WO2017108252A1 - Gas turbine installation and method for operating a gas turbine installation

Info

Publication number: WO2017108252A1
Application number: PCT/EP2016/077049
Authority: WO
Inventors: Olaf Hein
Original assignee: Siemens Aktiengesellschaft
Priority date: 2015-12-21
Filing date: 2016-11-09
Publication date: 2017-06-29
Also published as: DE102015226305A1

Abstract

The invention relates to a gas turbine installation (4) which comprises a gas turbine (12), a compressor station (8), a filter unit (13) with an inlet (15) for a first working medium (17) and a feed line (19), by means of which feed line (19) an outlet (21) of the filter unit (13) is connected to an inlet (28) of the compressor station (8). To provide a gas turbine installation 4 which can be retrofitted with little outlay and at low cost, the feed line (19) has an inlet (23) for a second working medium (25) and a switching device (27), by means of which it is possible to set via which of the two inlets (15, 23) a working medium (17, 25) can be introduced into the compressor station (8).

Description

description

Gas turbine plant and method for operating a Gasturbi ^¬ nenanlage

The invention relates to a gas turbine plant which comprises a gas turbine, a compressor station, a filter unit having an inlet for a first working medium and a supply line, through which feed line an outlet of the filter unit is connected to an inlet of the compressor unit.

Gas turbine plants which are operated with hydrocarbon-containing fuels are well known from the prior art. As a rule, ge ^¬ uses as a working fluid and as an oxidizing agent in a gas turbine plant ^¬ air. The air is compressed in a compressor, fed into a combustion chamber and burned there together with the fuel. Combustion produces a carbon dioxide-containing exhaust gas with temperatures of up to approx. 1500 ° C. A part of the thermal energy of the exhaust can then using a gas turbine (and optionally using a nachgeschalte ^¬ th optional steam turbine) are in electrical energy umgewan ^¬ punched. Furthermore, part of the thermal energy can be used directly, for example as district heating. Typical ^¬ as the exhaust gas after passing through the gas turbine (or possibly after passing through the optional steam turbine) released into the atmosphere. Also known is the so-called oxyfuel process, at wel ^¬ Chem instead of air pure oxygen is used as the oxidizing ^¬ ge. The oxyfuel process, the fuel is ge ^¬ jointly burned with the oxygen and during combustion in turn a gas containing carbon dioxide, from which the carbon dioxide is separated arises. Part of the separated carbon dioxide is fed via a return line back into the compressor and used as a working medium in the gas turbine plant. Another part of the separated coal For example, dioxides can be stored in an underground reservoir ("carbon capture and storage") or treated chemically, and one of the goals of the oxyfuel process is to reduce carbon dioxide emissions into the atmosphere and thus generate electricity in an environmentally friendly manner.

However, one set up for the oxyfuel gas ^turbine installation is (in the following: oxyfuel plant) schaffungs- in the acquisition or production costs and th in the Betriebskos- much more expensive than a conventional gas turbine plant, especially because a separation unit for separating Carbon dioxide is needed and energy is consumed for the separation of carbon dioxide from the exhaust gas and energy for a sour ^¬ stofferzeugung.

The invention has for its object to provide a Gasturbinenan ^¬ location, which is inexpensive to remove, in particular to an oxyfuel plant. The object is solved by a gas turbine plant of the aforementioned type, wherein according to the invention the Zufüh ^¬ approximately passageway having an inlet for a second working medium, and a switching device, by means of which adjustable, via which the two inlets, a working medium is introduced into the compressor station.

For example, the inlet for the first working medium may be an inlet for air. Furthermore, the inlet for the second working medium can be, for example, an inlet for carbon dioxide.

The invention is based on the consideration that in times of favorable carbon dioxide certificates it makes more economic sense to purchase and operate a conventional gas turbine plant, as mentioned in a conventional gas turbine plant no costs for a separation unit and kei ^¬ ne energy costs for the separation of carbon dioxide and for the production of oxygen. Furthermore, the invention is based on the consideration that, as a result of climate change, it is expected that the guidelines for the emission of carbon dioxide will be tightened. This means that rising prices for carbon dioxide certificates are to be expected. With rising prices for carbon credits, it may be eco ^¬ nomic sense to operate a oxyfuel plant. However, the conversion of a conventional gas turbine plant to an oxyfuel plant is complex and expensive.

Furthermore, the invention is based on the finding that it is technically unfavorable to connect a return line to the input of the filter unit of the gas turbine plant, since filter elements of the filter unit cause a pressure drop of the working medium in the filter unit, which has an un ^¬ favorable effect on the efficiency of the system. It is therefore useful in an oxyfuel plant for a better efficiency of the system, the exhaust gas or a component of the Ab ^¬ gases to lead past the filter unit in the compressor station.

Because a second inlet, namely the inlet for the second working medium, is provided in the invention, the gas turbine plant can be converted inexpensively or inexpensively converted into an oxyfuel plant. Once the price of carbon credits increase, the system can be retrofitted with ge ^¬ little effort and at low cost and be ^¬ builds. For example, a separation unit and / or a return line can be retrofitted. In particular, the return line can be connected to the inlet for the second working medium.

By means of the switching device is preferably adjustable, via which of the two inlets a working medium is introduced into the compressor station or the compressor station is supplied. Advantageously, the Umschalteinrich ^¬ device is designed such that either the first Arbeitsme ^¬ dium (via the inlet for the first working medium) or the second working medium (via the inlet for the second working medium) of the compressor station can be supplied.

Preferably, the switching device can occupy at least two positions. In the first position, the inlet for the first working medium is preferably switched on. That is, when the switching device is in the first position, the first working fluid may be directed into the compressor station via the inlet for the first working fluid. In the second position, preferably, the inlet for the second working medium is switched on. That is, when the switching device is in the second position, the second working fluid may be directed into the compressor station via the inlet for the second working fluid.

The gas turbine power plant can be operated in a disassembled stage optionally with the first working medium or with the second working medium. That is, the switching device may also allow, in the event that the gas turbine plant is expanded as an oxyfuel plant, consuming ^¬ switch from operation with the second working medium in the operation with the first working medium, for example, if no oxidizing agent is available , If the gas turbine plant, which has been expanded as an oxyfuel plant, the oxidizing agent again available, can be switched on ^¬ low-wall operation from the operation with the first working medium again in the operation with the second working medium. In the compressor station, the working medium supplied to the compressor station can be compressed. In particular, in the compressor station optionally, that is, depending on the setting of the switching device, the first working medium or the second working medium can be compressed. That in the

Compressor station compacted Working medium can be referred to below as "compressed working medium". The switching device may comprise one or more separate valves. The plurality of valves may be arranged in different ^¬ union sections of the supply line. The valves can assume the above-mentioned positions of the change-over device. In addition, the switching device may include a directional control valve, in particular a 3/2-way valve.

For example, the gas turbine can be designed in one or more stages. A gas turbine can be understood in the narrow sense of a gas turbine, which is also called expander, expander or expansion turbine.

The compressor station and the gas turbine of the gas turbine power plant expediently form at least an installation-technical unit, namely the gas turbine plant, in that the gas turbine is operated with the compressed working medium in the compressor station (fluidic connection). Preferably, the gas turbine plant comprises one with the

Compressor station connected drive unit, in particular for driving the compressor station. The drive unit, for example, a motor, in particular an electric Mo ^¬ tor, or a turbine, for. B. a steam turbine to be. Furthermore, the drive unit can be a further, in particular smaller dimensioned, gas turbine, in particular one

To ensure black start capability of the gas turbine plant. Preferably, the drive unit is variable in speed. By adjusting the rotational speed of the drive unit, preferably the rotational speed of the compressor station can be set. Next, the compression of the working fluid and / or the pressure of the compressed working fluid can be adjusted by a SET ^¬ ment the speed of the motor depending on the working fluid to be compressed. This has the advantage that the speed of the motor or the speed of the

Compressor station can be adapted to the working medium to be compressed. It is further preferred if the compressor station and the gas turbine each have their own shaft. That is, the compressor station and the gas turbine may be mechanically decoupled from each other. It should be understood by decoupled that the compressor station can be driven completely independent of the gas turbine. In particular, the decoupling of the compressor station from the gas turbine ensures that the compressor station can be driven independently of a rotational speed of the gas turbine. In this way, power supply side influences, such as generation deficits in the power grid, which can cause a reduction in speed of the gas turbine, do not penetrate the decoupled from the gas turbine compressor station. The compressor station may have at least one compressor unit. It is preferred if the compressor station has several, for example two or three, compressor ^units . The compressor unit / at least one of

Compressor units can in turn be executed in several stages. The compressor unit / at least one of

Compressor units can be, for example, a centrifugal compressor or an axial compressor. The compressor units may have a common shaft or in each case a separate shaft aufwei ^¬ sen. In particular, a separate output unit can be provided for each of the compressor units.

Furthermore, the compressor station may have at least one intercooler. Preferably, the plurality

Compressor units fluidly connected in series and between each two compressor units can be arranged in each case an intercooler.

Conveniently, the gas turbine plant comprises a Bren ^¬ ner. The burner can fluidically after the

Be arranged compressor station. It makes sense if the burner has a working medium input. Furthermore, the burner can be supplied with the working medium compressed by the compressor station, in particular via the Working medium input. Preferably, the burner is selectively operable with the first working medium or with the second working medium. In this way, the retrofittability of the gas turbine plant can be ensured. Due to the possibility of being able to operate the burner with the first or the second working medium, the burner can be referred to as a hybrid burner.

Furthermore, it is advantageous if the burner is a multi-stage burner. It is also expedient if the burner has a first fuel inlet. In addition, it is preferred if the burner has a, in particular switchable, second fuel inlet. As switchable, an input can be understood, which can be separated and / or activated, for example, by a valve. The second fuel inlet can be controlled separately. Preferably, the second fuel inlet is designed as a booster input, ie, the second fuel inlet expediently allows a rapid increase in output of the gas turbine plant. Specifically, the second fuel inlet, a sti ^¬ delay of the heat output, z. B. to 150% of the heat output at full load, allow.

It is advantageous if the burner has at least one, in particular switchable, oxidant input. Via the oxidant input a supply of oxidation onsmittels, in particular of oxygen, ^¬ be switchable into the burner and are connected, in particular egg ^¬ NEN operating with the second working medium. The Oxidationsmit- teleiningang can ensure the possibility of switching between the first working medium and the second working medium.

Alternatively or additionally, the supply line can have an, in particular switchable, oxidant input. Via the oxidant input to the supply line, the supply of the oxidizing agent in the

Compressor be switched on or be switched, in particular for operation with the second working medium. The burner may be a diffusion burner. Conveniently, the burner is a premix burner. Advantageously, the burner is set up to operate both in diffusion mode and in premix mode. It is before ^¬ Trains t when the torch includes a swirl unit with adjustable blades. The blades of the swirl unit can be adjustable depending on the supplied working medium. The adjustability of the blades may also be advantageous for operation of the gas turbine with either the first working medium or the second working medium. During operation with the first working medium, the blades can assume a first position. Further, the blades can occupy a second position during operation with the second working medium. A position of the blades may for example be characterized by a certain angle of inclination.

Preferably, the twisting unit is adapted to mix (with egg ^¬ nem operating with the first working medium) the first working medium with the fuel. Next, the

Swirl unit be adapted to (in an operation with the second working medium) to mix the second working medium with the fuel and / or to mix the second working medium with the oxidizing agent.

Preferably is burned using burner combustion ^¬ material, ie, the fuel is oxidized. The ^amount of fuel which is expediently fed to the burner can be adjusted. Furthermore, the oxidation may be medium supply connected, in particular can be Men ^¬ ge set of oxidizing agent, which is advantageously conducted to the burner ^¬. By means of the switching ^¬ device can be preferably adjusted whether the burner, the first or the second working medium is supplied. Further, the amount of compressed working fluid which is suitably supplied to the burner can be adjusted. In this way, the performance of the gas turbine can be controlled and a flexible load operation of the gas ^¬ turbine power plant is possible.

During combustion, a high-temperature exhaust gas, for. B. 1500 ° C, arise. Usefully, the gas turbine of the gas turbine plant is fluidically after the

Compressor station, in particular after the burner arranged. Conveniently, the (hot) exhaust gas is fed into the gas turbine. In the gas turbine, the exhaust gas can release a part of its energy by relaxation as kinetic energy to the gas turbine ^¬ bine. In this way, the exhaust gas can drive the gas turbine.

It is also expedient if the gas turbine plant has a generator. Preferably, the generator is connected to the gas turbine (mechanically), for example via a shaft and / or via a coupling. Expediently, the generator converts the mechanical energy generated in the gas turbine into electrical energy, which can then be fed as electrical current into the power grid. Conveniently, the exhaust gas in the gas turbine is expanded, the ^¬ special for energy conversion. The ent ^¬ stretched exhaust gas preferably has a temperature of 500 - 600 ° C. The gas turbine plant may have a pump for evacuating the gas turbine ^¬ . It is useful if the pump is connected to the gas turbine. The gas turbine is preferably via shut-off devices, for. As gate valve or butterfly valves, fluidically separated from the rest of the gas turbine plant. For example, in each case a shut-off device is arranged at an input of the gas turbine and at an output of the gas turbine. Conveniently, the shut-off valves are closed to evacuate the pump. Conveniently, the gas turbine is evacuated when the gas turbine plant is in phase shifter operation, ie when the

Compressor station and the burner are not in operation. Next, the gas turbine can be evacuated when the gas ^turbine installation is idle and / or when the gas-turbine bine is operated as a motor. Conveniently, the gas turbine is evacuated when the gas turbine plant for Netzsta ^¬ bilisierung is used. The evacuation of the gas turbine has the advantage that a coupling between the gas turbine and the generator is no longer needed because the evacuated gas turbine can be dragged with little load.

The gas turbine system may include a recuperator, in particular for heat exchange between at least a portion of the compressed in the compressor station first exhaust gas constituent and at least a portion of the exhaust gas from the gas turbine, aufwei ^¬ sen. Preferably, the recuperator also includes

Heat exchanger or heat exchanger called, a cold inlet. It is further preferred if the recuperator comprises a cold outlet. In addition, the recuperator one

Have warm entrance. Furthermore, it is preferred if the recuperator has a hot outlet.

As a cold input, an input of the recuperator can be understood, through which preferably a first, heat-absorbing medium enters the recuperator. As cold outlet, an output of the recuperator can be understood, through which the first medium preferably exits after heat absorption from the recuperator. Next, an input of the recuperator can be considered as a warm entrance, through which preferably enters a second heating medium in the Reku ^¬ ator. Further, an output of the recuperator can be considered as a warm output through which the second ^¬ Me dium preferably exits after heat release from the recuperator.

The recuperator can be connected via its cold inlet to an outlet of the compressor station. Furthermore, the recuperator can be connected via its cold outlet to an input of the gas turbine, in particular via the burner.

In addition, the recuperator can be connected via its heat input to the output of the gas turbine. Preferably, the recuperator is ^adapted to be flowed through with at least a part of the (from the compressor station) compressed working medium. The at least part of the compressed working medium can flow into the cold inlet of the recuperator. Further, the at least one portion of the compressed working medium to flow out from the cold output of the recuperator, in particular the heat from ^¬ exchange.

Furthermore, the recuperator is preferably designed to be flowed through by at least a portion of an exhaust gas from the gas turbine. The at least part of the exhaust gas from the gas turbine can flow into the heat input of the recuperator. Further, at least a flow of the portion of the exhaust from the gas turbine from the hot outlet of the recuperator from ^¬, especially after the heat exchange.

Preferably, the at least part of the (hot) exhaust gas from the gas turbine in the recuperator transfers thermal energy or heat to the at least one part of the compressed working medium, in particular during heat exchange. In this way, the heat exchange at least a portion of the compressed working medium is heated, for example, to about 500 - 600 ° C, wherein the at least a portion of the exhaust gas from the gas turbine gives off a portion of its thermal energy or heat.

The produced during the operation of the gas turbine power plant from ^¬ heat can diverse - continue to be used - energetically efficient. For example, waste heat from the intercooler of the compressor station and / or can be derived from the recuperator. In addition, the exhaust gas after flowing out of the recuperator still heat can be withdrawn, which is used as waste heat. Furthermore, the exhaust gas from the gas turbine can be used at least partially as waste heat. The waste heat can be z. B. be used as district heating. Furthermore, the ex ^¬ heat can be used for the operation of a separation unit ^¬ to. Next, the waste heat for electrolysis, z. In an electrolysis unit, and / or for another chemical reaction, for desalination of seawater

(plant), for (brown) coal drying (eg in coal gasification processes) and / or for operation of a refrigerating machine.

The gas turbine plant, a AufSättigungseinheit aufwei ^¬ sen. Preferably, the saturation unit is arranged between the compressor station and the recuperator. Expediently, the saturation unit is connected on the input side to the output of the compressor station. Moreover, it is advantageous if the saturation unit is connected on the output side to the cold input of the recuperator. In particular, the gas turbine plant the

On saturation unit for introducing a

Have on saturation agent, preferably for introduction into at least a portion of the compressed working medium. That is, the Aufsättigungseinheit may be adapted to the compressed working fluid, in particular before the heat exchange in the recuperator, with the

To saturate. In this way, the compressed working medium with the Aufsättigungsmittel

be saturated. An advantage of using the

Saturated working medium (the "wet working medium") is that it has a higher heat capacity than "a dry working medium" (which has not been treated with saturating agent). Furthermore, the "moist working medium" has a higher mass than the "dry working medium". Another advantage may be that the temperature of the working medium is lowered by the addition of Aufsättigungsmitteln, so that the "wet working ^¬ medium" the exhaust gas from the gas turbine can absorb more thermal energy than the "dry working medium", especially since the exhaust gas by means of "Wet working medium" can be cooled more. The Aufsättigungsmittel may be, for example, water, in ^¬ particular water from a separation unit, other of ^¬ tilled water or treated tap water. Furthermore, the saturation unit can be integrated in the recuperator.

The compressor station and / or the gas turbine may comprise a carbonaceous material. Further, other elements of the gas turbine plant through which the working medium is suitably guided, for. B. the Rekupe ^¬ rator, the Aufsättigungseinheit and / or (connecting) Lei ^¬ lines, a carbonaceous material having.

In a preferred embodiment of the invention which constitutes ^¬ provides in particular a developed stage of the gas turbine plant, the gas turbine plant includes a Abtrennungsein ^¬ unit. Preferably, the separation unit is arranged to separate a first exhaust gas component from an exhaust gas of the gas turbine. The exhaust gas of the gas turbine may in particular be the abovementioned exhaust gas.

It is expedient if the separation unit has an input, which is preferably connected to an output of the gas turbine. For example, the receipt of the waste separation unit can be ver ^¬ connected via the recuperator to the gas turbine. In particular, the recuperator can be connected via its hot output to the input of the separation unit. Furthermore, the separation unit can have a first outlet, which is preferably connected to the inlet for the second working medium. At least a portion of the separated first exhaust gas constituent may be discharged from the separation unit via the first exit. In particular, at least a portion of the separated first Abgasbe ^¬ was partly be guided via the inlet for the second working medium in the compressor station. Preferably, the second working medium is the at least one part of the separated first exhaust gas component. In this way, the first stage of the gas turbine ^installation constructed can be developed in particular for an oxyfuel process. The gas turbine plant expediently comprises an outlet. Preferably, the outlet of the gas turbine plant is arranged for discharging part of the (separated) first exhaust gas component from the gas turbine plant. By Ver ^¬ application of the separation unit may be a part of the separated first exhaust component, especially carbon dioxide, in high purity, eg. B. at least 90 vol%, be discharged from the ^{Gasurbinenanla ¬} ge and optionally used further.

The part of the separated first exhaust gas constituent discharged from the gas turbine plant can be a different part than the second working medium. For example, the outlet of the gas turbine plant may be a second output of the separation unit. Next the outlet of the gas turbine plant may be an off ^¬ passage of a return conduit through which is vorzugswei- se the first output of the separation unit connected to the input of the compressor station.

Furthermore, the part of the separated first exhaust gas constituent discharged from the gas turbine plant can be a subset of the second working medium. For example, the outlet of the gas turbine plant may be an output of a

Be compressor output line through which advantageously an output of the compressor station is connected to an input of the gas turbine.

It is expedient if the separation unit has a further output, in particular a third output. In particular, the separation unit can have the further outlet for discharging a second exhaust gas constituent. Preference as the second exhaust gas constituent one of the Abtren ^¬ planning unit separated second exhaust gas constituent. That is, advantageously, the separation unit is configured to generate a second exhaust gas from the exhaust gas of the gas turbine. Separate gas component. Furthermore, the second exhaust gas component may be a part of the exhaust gas remaining during the separation of the first exhaust gas ^component . The further output of the separation unit can with the

Be connected to saturation unit. Furthermore, the second exhaust gas constituent, in particular water, can be supplied at least partially to the saturation unit. Furthermore, the invention is directed to a gas turbine power plant with the gas turbine plant according to the invention, in particular with one of the above-described developments of the gas turbine plant. Preferably, the gas turbine plant includes an internal ^¬ hydrogen generation system. Advantageously, the fuel is generating plant with an outlet of the gas turbine plant ver ^¬ linked, especially with the above-mentioned outlet of the gas turbine plant. Advantageously, a first portion of the separated exhaust gas component from the gas ^turbine installation is discharged via the outlet. That is, a part of the first gas from ^¬ ingredient can be discharged via the outlet of the gas turbine plant. Thus, the discharged from the gas turbine plant part of the first exhaust gas constituent - in addition to the known measures such as storage of the exhaust gas constituent in Unterirdi ^¬ rule deposits and use of the exhaust gas component to a gas injection in a tertiary oil production - for a

Fuel production can be used.

Preferably, a portion of the first separated off exhaust component, for example, if the pressure in the gas ^turbine installation, in particular in the separation unit, over a predetermined upper pressure limit increases, dissipated. In addition, the discharged (from the gas turbine plant) part of the abge ^¬ separated first exhaust component of the fuel generating plant can be supplied. That is, the gas turbine plant, in particular particular the outlet of the gas turbine plant is arranged so meaningful ^¬ example, that which may be supplied (from the Gasturbinenanla ^¬ ge discharged) portion of the separated first exhaust gas component of the fuel production plant.

Preferably the from the gas turbine plant discharged (via the outlet of the gas turbine plant) was first Abgasbe ^¬ portion corresponds to one of the fuel generating plant supplied first exhaust gas constituent.

The discharged from the gas turbine plant first exhaust gas constituent part ^¬ can, especially in the fuel production plant, are used to produce a fuel. It is above ^¬ geous when the fuel hydrocarbon, in particular methane, and / or alcohol, in particular methanol comprises. Further, the fuel produced, for example, in the gas turbine plant for generating electrical energy, ie used to generate electricity. For example, the production of the fuel in the gas turbine power plant can save costs for a fuel delivery, in particular a natural gas production, as well as costs for transporting the subsidized fuel. In addition, the generated fuel can be removed from the gas turbine power plant, z. B. by being made available to the petroleum industry. Then the generated (and discharged) fuel, for example, in vehicles and / or in a heating plant, can be used, for. By means of a fuel cell and / or an engine. A sale of the fuel produced at the oil industry, an economic operation of the gas turbine power plant can be si ^¬ chergestellt. The fact that makes sense of exhausted from the gas turbine plant first exhaust component is used can be dispensed is ^¬ nen transportation and its storage in an underground deposit. Also, the gas from the gas turbine unit discharged first exhaust gas ingredient so not as a greenhouse gas into the atmosphere. In this way, both the operation of the gas turbine plant as well as its Energieer ^¬ generation can be environmentally friendly.

The fuel-producing plant may include a fuel storage. The fuel produced in the fuel-producing plant may be stored in the fuel storage. In particular, the ER witnessed in the fuel generating plant fuel may be at least partially supplied to the burner of the Gastur ^¬ binenanlage. Further, the burner other than the fuel produced can be supplied.

Furthermore, it is advantageous if the fuel-producing plant comprises an electrolysis unit, in particular for electrolysis. It makes sense to electrolysis an electrolysis of water. In particular, the electrolysis, an electrolyzer ^¬ se to produce a starting material, in particular of what ^¬ serstoff, and / or an oxidant, in particular oxygen, be. For example, excess energy from the power grid for the electrolysis or in the Elektroly ^¬ se unit can be used. In this way, excess energy can be stored from the power grid, in particular in the form of a starting material and / or an oxidizing agent. The electrolytic unit may be electrically connected to the generator of the Gasturbi ^¬ nena position, in particular via the mains.

Conveniently, the further output of the Abtrennungsein- is integral connected to the electrolysis unit of Brennstofferzeugungsanla ^¬ ge. Preferably, at least a part of the (abge ^¬ isolated) second exhaust gas constituent, in particular water, the electrolysis unit is supplied and, optionally, there subjected to electrolysis.

Preferably, a starting material, in particular hydrogen, is produced by means of the electrolysis. The starting material can be stored in a memory of the gas turbine power plant. Moreover, it is advantageous if an oxidizing agent, in particular oxygen, is produced by means of the electrolysis.

Advantageously, the fuel production system comprises a synthesis unit for synthesizing the fuel. That is, preferably the synthesis unit is to be rich ^¬ tet, to produce the fuel, in particular to synthetisie ^¬ ren. The starting material can be supplied to the synthesis unit. It is expedient if the starting material is used to synthesize the fuel. In addition, the gas discharged from the gas turbine plant part of the first Abgasbe ^¬ was partly the synthesis unit can be supplied. It is also expedient if the part of the first exhaust gas constituent removed from the gas turbine plant is used to synthesize the fuel. That is, the fuel can from the starting material and the abge from the gas turbine plant ^¬ led part of the first exhaust component synthesized ^¬ to. Furthermore, it is advantageous if the synthesis unit is connected on the output side to the gas turbine plant. The synthesis ^¬ unit can be connected to a burner of the gas turbine plant, in particular ^¬ special with the aforementioned burner of the gas turbine plant. In particular, the fuel produced in the synthesis unit can be supplied to the burner. Except ^¬ which the synthesis unit can be output connected to the combustion ^¬ hydrogen storage. In particular, the fuel produced in the synthesis unit can be stored in the fuel storage ge ^¬. In this way, excess energy can be stored from the power grid, especially in the form of fuel.

Moreover, it is preferred if the Brennstofferzeugungsanla ^¬ ge comprises a gas storage. The gas storage can be designed atmospherically or as an accumulator. Next, the gas storage, also called combination storage, several, in particular two, have chambers. Preferably, the chambers are separated from one another, in particular by a movable wall. dung. The movable wall can be designed, for example, as a ver ^¬ sliding partition. One of the chambers may be connected to the outlet of the gas turbine plant. Further, the one of the chambers with a synthesis unit may be in particular connected to the aforementioned synthesis unit, the focal ^¬ generation plant material. The gas reservoir, in particular the one of the chambers, may be a reservoir for at least part of the first exhaust gas constituent discharged from the gas turbine plant, in particular for carbon dioxide.

The other chamber can with an electrolysis unit, in particular ^¬ special with the aforementioned electrolysis unit, the

Fuel system to be connected. Furthermore, the other chamber can be connected to a burner, in particular to the aforementioned burner, of the gas turbine plant. In addition, the other chamber may be connected to the supply line of the gas turbine plant. The gas storage, in particular the other chamber, may be a storage for an oxidizing agent, in particular for oxygen.

The oxidant produced in the electrolysis unit can be stored (at least partially) in the gas storage. Next produced in the electrolysis unit can Oxidati ^¬ onsmittel (the supply line and hence the

Compressor station) and / or the burner are supplied.

In an advantageous embodiment of the invention, the gas turbine power plant coupled to the gas turbine

Steam turbine plant with at least one heat exchanger and a steam turbine. Preferably, the Dampfturbinenan ^¬ position is set up such that the heat exchanger at least a part of the thermal energy of the exhaust gas is supplied from the gas turbine. In particular, the heat exchanger is connected to the gas turbine such that at least a portion of the exhaust gas from the gas turbine of the heat exchanger can be fed. Further, the heat exchanger may be connected to the gas turbine such that the heat exchanger of at least a portion of the exhaust gas from the gas turbine can be flowed through. The part of the (hot) exhaust gas, which preferably flows through the heat exchanger, can transfer thermal energy or heat to a working medium, usually water or water vapor. The part of the hot exhaust gas which the

Heat exchanger preferably flows through, can after the

Flow through the heat exchanger of the separation unit to be led ^¬ . Preferably, a firing of the

Heat exchanger be switched on with a fuel

and / or be provided.

The heated in the heat exchanger working fluid can drive the steam turbine ^¬ the steam turbine plant. Further, the mechanical energy of the steam turbine can be converted by means of another generator into electrical energy. The electrical energy can be fed into the grid as electrical power.

It can also be provided that the steam turbine plant is used to drive the compressor station, in particular if a firing of the heat exchanger is provided with a fuel ^¬ material. The drive of the compressor station can be done directly, in which case an output of the steam turbine drives the compressor station, as well as indirectly, in which case the generator of the steam turbine ^{¬ system is} driven by the steam turbine plant, which supplies, for example, the (electric) motor of the compressor station with power. Further, the invention is directed to a method of operating a gas turbine plant comprising a gas turbine, a compressor station, a filter unit having an inlet for a first working fluid, and a supply conduit, which supply conduit connects an outlet of the filter unit to an inlet of the compressor station.

In the method according to the invention, the Zuführungslei ^¬ tion an inlet for a second working medium and using A switching device is set, whether the Gasturbi ^¬ nenanlage is operated with the first working medium or with the second working medium. This gas turbine system may be particularly the above beschrie ^¬ bene gas turbine plant. Consequently, the following elements of the gas turbine plant may be the aforementioned elements. Conveniently, the gas turbine plant comprises a burner with a switchable oxidant input.

During operation with the first working medium, the first working medium is expediently guided into the compressor station via the inlet for the first working medium or

Fed compressor station. Furthermore, it is expedient if, during operation with the first working medium, the oxidant input is closed or disconnected. In the operation of the second working medium useful ^¬ enough, the second working medium through the inlet for the second working medium in the compressor unit is performed or the compressor station supplied. Furthermore, it is expedient if, during operation with the second working medium, the oxidizing agent input is switched on, ie, the burner is supplied with oxidizing agent.

For example, the first working medium may be air. Further, the second working medium may be carbon dioxide.

Conveniently, can be selected and / or changed during operation of the gas turbine plant ^¬ between an operation with the first working medium and an operation with the second working medium.

In a preferred development of the invention, the gas turbine plant has a separation unit. Appropriately ^{¬ way} is in the operation with the second working medium Exhaust gas from the gas turbine passed into the separation unit. Next in the separation unit, a first Abgasbe ^¬ stand part can be separated from the exhaust of the gas turbine. Furthermore, at least a portion of the separated first exhaust gas constituent may be directed to the compressor station via the inlet for the second working medium

Compressor station are supplied and / or compressed in this. Conveniently, the second working medium is at least a part of the separated first exhaust gas constituent. Preferably, the second working medium is removed from a first outlet of the separation unit. Further, the second working medium of the compressor station ^¬ can be supplied.

Furthermore, the invention is directed to a method for fuel production in a gas turbine power plant, in which a gas turbine plant of the gas turbine power plant is operated. In the operation of the gas turbine plant with the second working medium, part of the separated first exhaust gas constituent can be removed from the gas turbine plant. Except ^¬ which the gas discharged from the gas turbine plant part of the separated first exhaust gas component of a Brennstofferzeu ^generating installation of the gas turbine power plant can be supplied. WEI ter can from which a fuel is generated of the internal ^¬ generation plant material supplied first Abgasbestsandteil in the fuel producing plant.

The generated fuel can be at least partially supplied to a burner of the gas turbine plant. In particular, the fuel produced can be supplied at least temporarily to the burner of the gas turbine plant. In addition, the erzeug ^¬ te fuel can be discharged from the gas turbine power plant, and be bought, for example, the petroleum industry provides. Furthermore, the burner another fuel, such as a subsidized fuel, are supplied. This gas turbine power plant may in particular be the gas turbine power plant described above. In addition, this gas turbine system may be particularly described above Gastur ^¬ binenanlage.

Further, it is preferred if the position of the Brennstofferzeugungsan- supplied portion of the separated first exhaust gas constituent ^¬ is partly discharged from an outlet of the gas turbine plant. Preferably, during the starting of the gas turbine power plant as ^¬ following procedure is used: Advantageously onsmittel at the beginning of the start-separation unit having an oxidation, in particular oxygen, is filled. Further, the oxidizing agent from the separation unit of

Compressor station via the inlet for the second Arbeitsme ^¬ medium are at least partially supplied. That the

Compressor station supplied oxidant can be compressed in the compressor station. A speed of

Compressor station can be started up, in particular in such a way that the compressor station exactly the amount of Oxi ^¬ dationsmittel, here z. As oxygen, compressed, which can use the gas turbine plant in the moment of the startup process. Further, the compressed oxidant may optionally pass through the saturation unit and / or the recuperator. In addition, the compressed oxidant can be fed into the burner. The burner can be fed exactly the amount of fuel that can use the gas turbine plant in the moment of startup. Preferably, the amount of the oxidizing agent and the amount of the fuel are continuously increased leh, in particular in such a way that a temperature of an exhaust gas is within a predetermined range. In particular, the amount of oxidizing agent is maintained in a predetermined particle ratio to the amount of fuel. By combustion of a fuel (ie by a

Oxidation of the fuel), the exhaust gas can be generated. The exhaust gas may be, in particular at the beginning of the starting process, another exhaust gas than the abovementioned exhaust gas, in particular because this exhaust gas (here) is not a mixture with a previously separated exhaust gas constituent. The exhaust gas can relax in the Gastur ^¬ bine and so drive the gas turbine. Preferably, the expanded exhaust gas has a temperature of 500-600 ° C. Then the exhaust gas can pass through the recuperator. Further, the exhaust gas can be fed into the separation unit. Suitably ^¬ ßigerweise is separated in the separation unit of the first Abgasbe ^¬ standing part from the exhaust gas to feed it (together with the remaining in the separation unit oxidant) via the inlet for the second working medium at least partially ^¬, the compressor station. The process can be repeated in a cycle. Over time, the oxidant initially filled in the separation unit will expediently be used up. From a certain pressure limit in the separation unit can be discharged at least a portion of the separated first exhaust gas constituent from the Gasturbi ^¬ nena position, ie fed out. Then the starting process is expediently ended. The description of advantageous embodiments of the invention given hitherto contains numerous features which are reproduced in some detail in the individual subclaims. However, these features may conveniently be considered individually and combined into meaningful further combinations. In particular, these features can be combined individually and in any suitable combination with the method according to the invention and the gas turbine plant according to the invention. Thus, process features as property of the respective gas turbine plant formulated objectively to see and vice versa ^¬.

Even if some of the terms are respectively used in the singular or in conjunction with a numeral in the description and in the claims, the scope of the invention for these terms shall not be restricted to the singular or each ^¬ stays awhile numeral. The above-described characteristics, features and advantages of this invention, as well as the manner in which they are achieved, will become clearer and more clearly understood in connection with the following description of the embodiments which will be described in connection with the drawings. The embodiments serve to illustrate the invention and do not limit the invention to the combination of features specified therein, not even with respect to functional features. In addition, suitable features of each embodiment may also be considered explicitly iso ^¬ lated, removed from one embodiment, introduced into another embodiment to supplement it and ^¬ combined with any of the claims ^¬ the.

Show it

1 shows a retrofittable gas turbine plant; 2 shows a gas turbine power plant with a gas turbine plant, which comprises a separation unit;

3 shows a gas turbine power plant with a fuel-producing plant; and

4 shows a gas turbine power plant with a steam turbine plant.

FIG. 1 schematically shows a gas turbine plant 4. The gas turbine plant 4 in FIG. 1 is a first construction stage and can be retrofitted or expanded, so that a gas turbine plant or a gas turbine power plant can be created analogously to FIG. The gas turbine plant 4 in FIG. 1 comprises a

Compressor station 8, a burner 10 and a gas turbine 12. The compressor station 8, the burner 10 and the gas turbine 12 are fluidly connected to each other. The burner 10 is fluidically arranged after the compressor station 8 and the gas turbine 12 fluidically after the burner 10 angeord- net. Furthermore, the gas turbine plant comprises a

Compressor output line 16. Through the

Compressor output line 16 is an output 18 of the

Compressor station 8 connected to an input 20 of the gas turbine 12.

Furthermore, the gas turbine plant 4 comprises a generator 32. The generator 32 is connected to the gas turbine 12 via a shaft for generating electricity. The gas turbine system 4 treadmill is intended in order to generate electric power and to feed (as electrical ^¬'s current) into a power grid 36th

Further, the gas turbine system 4 comprises a filter unit 13 having an inlet 15 for a first working fluid 17 and a supply line 19. The filter unit comprises a plurality Fil ^¬ ter (not shown) for filtering the first working fluid 17, in particular air. When filtering the first working medium 17 in particular (dust) particles from the first working ^¬ medium 17 are filtered out. Through the supply line 19, an output 21 of the filter unit 13 is connected to an input 28 of the compressor station 8. Furthermore, the supply line 19 has an inlet 23 for a second working medium 25. In addition, the supply line 19 comprises a switching ^{¬ device} 27, by means of which is adjustable, via which of the two inlets 15, 23, a working fluid 17, 25 in the compressor station 8 can be inserted. The switching device is designed as a directional control valve. The directional control valve has three to ^¬ connections and 2 positions. In FIG 1, the directional control valve is set such that the A ^¬ let 15 is opened for the first working fluid 17 and the inlet 23 is closed for the second working medium 25th That is, in FIG. 1, the gas turbine plant is operated with the first working medium 17.

When, for example, a return line is connected to the inlet 23 for the second working medium 25

(see FIGS 2-4), ie when the gas turbine plant 4 nachgege- is equipped, a second working medium 25 can be introduced into the inlet 23 for the second working medium 25. Then the compressor station 8 can be operated with the second working medium 25. By providing the Einlas- ses 23 for the second working medium 25 and by the order ^¬ switching device 27, the gas turbine system 4 is expensed in FIG 1 and inexpensively retrofitted.

The compressor station 8 and the gas turbine 12 each have their own shaft 11. That is, the compressor station 8 and the gas turbine 12 are mechanically decoupled.

The compressor station 8 comprises two compressor units 40 and an intercooler 42 which is arranged (at least in terms of flow) between the two compressor units 40. The compressor station 8 is optionally with the first working medium 17 or with the second working medium 25

operated. Here, the compressor station 8 is operated with the first working medium 17.

The gas turbine plant 4 comprises two drive units 38, which are each designed as an electric motor 38. Each of the electric motors 38 is variable in speed. Each of the compressor units 40 is connected to one of the motors 38 each having its own shaft 11. The drive of the compressor station 8, in particular the drive of the

Compressor units 40, via the motors 38. Each of the motors 38 is operated with electric power, which is taken from the power network 36. The speed of the motors 38 and thus the speed of the compressor units 40 is in

Dependence of the compressor station 8 supplied working medium 17, 25 adjustable. In FIG. 1, the rotational speed of the motors 38 on the first working medium 17 is optimized. Furthermore, the gas turbine plant 4 comprises a

AufSättigungseinheit 44 and a recuperator 46. The Reku ^¬ ator 46 includes a cold inlet 48, a cold outlet 50, a hot inlet 52 and a hot output 54th The saturation unit 44 is arranged fluidically between the compressor station 8 and the recuperator 46. The recuperator 46 is connected via its cold inlet 48 to an outlet 18 of the compressor station 8, in particular via the saturation unit 44. Further, the Rekupera ^¬ gate 46 is connected via its cold output 50 to an input 20 of the gas turbine 12, in particular about the burner 10. In addition, the recuperator 46 is connected via its heat input 52 to the output 24 of the gas turbine 12. Further, hot output lead 54 of the recuperator 46 in the environment / in the At ^¬ gas atmosphere. By means of the switching device 27 is adjustable, whether the

Gas turbine plant 4 is operated with the first working medium 17 or with the second working medium 25. In the operation with the first working medium 17, the ers ^¬ te working medium 17 is usefully guided via the inlet 15 for the first working medium 17 in the compressor station 8 and supplied to the compressor station. 8 The compressor station 8 compresses the compressor station 8 supplied working fluid 17. The compressed in the compressor station 8 working fluid 17 is hereinafter referred to as compressed working fluid 17.

The compressed working medium 17 is in the

On saturation unit 44 with a Aufsättigungsmittel 45, here water, added, in particular saturated. Then the compressed (and with the Aufsättigungsmittel 45 offset) working fluid 17 is passed into the recuperator 46, esp. Through the cold inlet 48. The recuperator 46 is flowed through by the compressed working fluid 17. In addition, a (hot) exhaust gas 58 from the gas turbine 12 is directed into the recuperator 46 (in), in particular via the heat input 52. The recuperator 46 is passed through by the exhaust gas 58. flows, in particular opposite to a flow of Ar ^¬ beitsmediums 17, 25 ("countercurrent principle").

In the recuperator 46, a heat exchange takes place between the compressed (and with the Aufsättigungsmittel 45 offset) Ar ^¬ beitsmedium 17 and the exhaust gas 58 from the gas turbine 12 instead. The exhaust gas 58 from the gas turbine 12 is hot (about 600 ° C) and gives some of its thermal energy to the compressed working fluid 17 from. In this way, the compressed working medium 17 z. B. from about 200 ° C to about 500 - 600 ° C he ^¬ warms. Because the working medium 17 previously (in the

AufSättigungseinheit 44) was mixed with water 66, which now sits be ^¬ "wet working medium 17" a higher capacity than Wärmeka ^¬ "dry working medium" (in which last is not mixed with water) so that the "wet working medium

17 "can store more thermal energy than" dry Ar ^¬ beitsmedium ".

The compressed (and heated) working fluid 17, particularly after the heat exchange, discharged from the recuperator 46, in particular the cold output 50. In addition, the (cooled) exhaust gas 58, in particular the heat from ^¬ exchange, discharged from the recuperator 46 , in particular via the hot output 54 and enters the environment.

The compressed (and heated) working medium 17 is supplied to the burner 10, in particular via a

Working medium input 71 of the burner 10. The burner 10 can be operated either with the first working medium 17 or with the second working medium 25. As a result, the gas turbine plant 4 can be retrofitted and inexpensively retrofitted.

The burner 10 is designed in several stages. Furthermore, the burner 10 has a first fuel inlet 73 and an additional second fuel inlet 74 that can be connected. The switchable second fuel inlet 74 can be separated from the burner 10 by a valve 75 of the second fuel inlet 74 and / or can be connected to the burner 10. The second fuel inlet 74 is separately controllable and is switched on, for example, when the gas turbine plant 4 is to generate more electrical and / or ther ^¬ mix energy (per time). The burner 10 is supplied with fuel 70, in particular via the first fuel inlet 73 and optionally via the second fuel inlet 74.

The burner 10 has a connectable oxidant inlet 77. The switchable oxidant input 77 is separated by a valve 75 of the oxidant input 77 from Bren ^¬ ner 10 and / or the burner 10 connectable.

During operation with the first working medium 17, the oxidant input 77 is disconnected, ie the valve 75 of the oxidant input 77 is closed. In the operation of the second working fluid 25 of the oxidant input is switched 77, ie the valve 75 of the Oxidationsmit ^¬ teleingangs 77 is opened, and oxidizing agent here Sau ^¬ erstoff 72, the burner 10 is supplied.

Furthermore, the burner 10 is a premix burner comprising a swirl unit 79 with adjustable blades 81. The blades 81 of the swirl unit 79 are adjustable depending on the supplied working medium 17, 25. That is, when operating with the first working fluid 17, the blades 81 occupy a first position. A position of the blades 81 may be characterized for example by a certain angle of inclination. Next, the position of the blades can be load-dependent adjustable.

During operation with the first working medium 17, the first working medium 17 is mixed with the fuel 70 by means of the swirl unit 79. Further, in the operation with the ers ^¬ th working medium 17 using the burner 10, the fuel is combusted 70 (together with the working medium 17) that is, the fuel 70 is oxidized. The burner 10 is connected to a combustion chamber 9 of the gas turbine plant 4, in which the combustion takes place. The fuel 70 is methane and / or methanol in this embodiment. During combustion, a high-temperature exhaust gas 58 of approximately 1500 ° C. is produced in the burner 10.

In the operation with the second working medium 25, ^{insbesonde ¬} re carbon dioxide, the exhaust gas 58 is a mixture of the burner 10 supplied second working fluid 25 and a resulting combustion of the fuel 70 combustion gas. The combustion gas and / or the exhaust gas 58 is in the

Operation with the second working medium 25 at least substantially ^¬ carbon dioxide 56 and water 66th

The hot exhaust gas 58 from the combustion then flows into the gas turbine 12 of the gas turbine plant 4, in which the exhaust gas 58 releases a portion of its (thermal) energy by relaxation as kinetic energy to the gas turbine 12, d. H. the exhaust gas 58 drives the gas turbine 12. After passing through the gas turbine 12, the exhaust gas 58 is relaxed.

By coupled to the gas turbine 12 generator 32, the mechanical energy is then umwan ^¬ delt into electrical energy, which is fed as electrical power into a power grid 36. The (still hot) exhaust gas 58 from the gas turbine 12 Release part ^¬ sen via the output 24 of the gas turbine 12th

Further, the gas turbine 12 comprises at its entrance 20 and at its output 24 each have a shut-off 33. Further, the gas turbine plant 4 comprises a pump 35 which is connected to the gas turbine 12. The pump 35 is arranged to evacuate the gas turbine 12. During operation of the gas turbine plant 4 with the first working medium 17 or the second working medium 25, the shut-off devices 33 are opened and the pump 35 is out of operation. The gas turbine system 4, in particular the generator 32 is, at idle or the Ge ^¬ erator 32 is operated as a motor, so the valves are closed 33 and pump 35 is in operation. When the pump 35 is in operation, the gas turbine 12 is evacuated. An evacuated gas turbine 12 may then be carried along by the generator 32, which is idling or operating as a motor (ie, is in phase shifter operation).

After the gas turbine 12, the exhaust gas 58 is at least partially directed into the recuperator 46, in particular via the heat input 52. As already mentioned, flows through the exhaust gas 58 from the gas turbine 12 to the recuperator 46 to a (further) part of its thermal energy to that of the

Compressor station 8 compressed working fluid 17, 25 deliver.

In addition, a waste heat pipe 61 of the gas turbine plant 4 is connected to the output 24 of the gas turbine 12. The

Abwärmeleitung 61 is through a valve 75 of the waste heat pipe

61 switchable and / or separable. The waste heat pipe 61 can be switched on when needed, ie the valve 75 of the waste heat pipe 61 can be opened if necessary, so that the exhaust gas 58 can be used at least partially as waste heat 62. When the exhaust gas is derived 58 from the gas turbine 12 is completely on the heat pipe 61, the Rekupe ^¬ rator 46 no exhaust gas 58 is fed to the heat exchange in the recuperator 46 deleted.

From the gas turbine plant (further) waste heat 62 is used. By means of the intercooler 42 of the compressor station 8, waste heat 62 is removed from the compressor station 8. Also, the recuperator 46 provides waste heat 62. In principle, the exhaust gas after flowing out of the recuperator heat could still be withdrawn, which is used as waste heat. The waste heat

62 is used here for example as district heating 64.

The supply line 19, the compressor station 8, the

Compressor output line 16, the Aufsättigungseinheit 44 ^¬ as the recuperator 46 have a carbonic acid Ma ^¬ material. This makes it possible, the gas turbine plant 4 optionally with the second working medium 25, in particular Koh-. lendioxid to operate - ie the gas turbine plant 4 can be retrofitted due to the carbonated materials. Carbon dioxide as the second working medium is koh ^¬ lensäurehaltig normally and can damage non-carbonated resistant elements of a gas turbine plant.

2 schematically shows a gas turbine plant 4, which comprises a separation unit 14. The following description is essentially limited to the differences from the exemplary embodiment of FIG. 1, to which reference is made for features and functions that remain the same. Essentially the same elements are always denoted by the same reference numerals and features not mentioned are taken over into the following Ausführungsbei ^¬ game, without being described again.

The separation unit 14 is arranged downstream of the gas turbine 12 in terms of flow. The separation unit 14 is connected at its input 22 to an output 24 of the gas turbine 12. In particular, the input 22 of the separation unit 14 is connected to the hot output 54 of the recuperator 46.

Furthermore, the gas turbine plant 4 comprises a recirculation line 30. A first outlet 26 of the separation unit 14 is connected to the inlet 23 for the second working medium 25, in particular via the recirculation line 30. Further, the first outlet 26 of the separation unit 14 (via the inlet 23 for the second working medium 25) is connected to the inlet 28 of the compressor station 8.

By installing the separation unit 14 and the connection of the separation unit 14 with the compressor station 8 via the return line 30, the gas turbine plant 4 is expanded to a second stage. There are further Ausbaumög ^¬ possibilities, such as FIG 3 and FIG 4 show. The gas turbine system 4 in FIG 2 can be operated with the ers ^¬ th working medium 17 or to the second working medium 25th Between the operation with the first working medium 17 and the operation with the second working medium 25 can be selected or can be switched. The operation with the first working medium 17 is already explained in FIG. 1 and works analogously here. The operation with the second working medium 25 takes place essentially the same, reference being made to the differences below.

During operation with the second working medium 25, the second working medium 25 is guided via the inlet 23 for the second working medium 25 into the compressor station 8 or fed to the compressor station 8. In the compressor station 8 is optionally, d. H. depending on the setting of the switching device 27, the first working medium 17 or the second working medium 25 compressed.

The compressor station 8 comprises in this embodiment (in contrast to FIG. 1) only one motor 38, which both

Compressor units 40 of the compressor station 8 drives. Next, the compressor units 40 (in contrast to FIG. 1) have a common shaft 11. In the operation of the second working fluid 25 of the oxy is dationsmitteleingang 77 of the burner 10 turned on, ie the valve 75 of the oxidant input 77 is open, and the oxidizing agent, here oxygen 72 is supplied to the Bren ^¬ ner 10th

Further, in operation with the second working medium 25, the blades 81 of the swirl unit 79 occupy a second position. In the operation with the second working medium 25 is by means of the swirl unit 79, the second working medium 25 with the

Fuel 70 and mixed with the oxygen 72. Further, in the operation with the second working medium 25 of Fuel 70 (together with the oxygen 72 and the Ar ^¬ beitsmedium 25) burned using the burner 10, ie, the fuel 70 is oxidized. By controlling the amount is regulated at Ar ^¬ beitsmedium 25, the temperature which is reached during the combustion can be adjusted.

In this embodiment, the gas turbine 12 and the generator 32 are coupled via a coupling 34. The pump 35 and the shut-off devices 33 (see FIG. 1) can be omitted here. However, it would also be conceivable to use a phase shifter operation as in FIG. 1 without a coupling 34 with a pump 35 and shut-off elements 33.

Further, in this embodiment (in contrast to FIG. 1), no waste-heat line 61 is provided, which is connected to the output 24 of the gas turbine 12. However, such a waste heat pipe 61 would be conceivable in principle.

Further, in the operation with the second working medium 25, the procedure is as follows:

In the separation unit 14, a first exhaust gas constituent 56, in this case carbon dioxide 56 removed, in particular from the exhaust gas 58 of the gas turbine 12. At least a portion of the abgetrenn ^¬ th first exhaust component 56 is inserted into the inlet 23 for the second working medium 25th The second ^working medium 25 is accordingly at least one portion of the separated first exhaust component 56th

The second working medium 25, d. H. at least a part of the separated first exhaust gas component 56, the

Compressor station 8 fed via the return line 30. The compressor station 8 compresses the second working ^¬ medium 25. The gas turbine system 4 includes an outlet 78. Insbesonde ^¬ re includes the outlet 78 a valve 75. The outlet 78 of the gas turbine system 4 is in this embodiment, a second output 80 14 of the separation unit via the Out- let 78 is a part 82 of the separated first Abgasbe ^¬ constituent part 56, ie a portion 82 of the carbon dioxide 56, discharged from the gas turbine plant 4. If a pressure in the Ab ^¬ separating unit 14 rises above a predetermined upper pressure limit, a part 82 of the separated carbon dioxide 56 may be discharged from the gas turbine system 4 via the outlet 78 to ^¬. The discharged from the gas turbine plant 4 carbon dioxide 82 is removed here from the separation unit 14. In the combustion entspre ^¬ accordingly to the already existing carbon dioxide (ie, to the burner 10 supplied to the second working medium 25) further produces carbon dioxide 82. Accordingly has a part 82 of the separated carbon dioxide 56 are removed from the gas turbine system 4 to an excess pressure in the Gas turbine plant 4 to prevent.

The gas discharged from the gas turbine system 4 part 82 of the abge ^¬ separated carbon dioxide 56, for example, can escape into the environment, be used winnung to a gas injection in a tertiary Ölge- and / or are supplied to a chemical recycling.

Further, the separation unit 14 separates from the exhaust gas 58 of the gas turbine 12 from a second exhaust gas component. The second exhaust gas component here is water 66. The water 66 is separated in particular by a condensation. The separated water 66 is removed from the separation unit 14 and optionally used further. At least a portion of the separated water 66 abge ^¬ the AufSättigungseinheit 44 is supplied as AufSättigungsmittel 45th

Any remaining residual gas 88 remaining in the separation unit 14 can be released into the ^environment / into the atmosphere. 3 shows a gas turbine power plant 2 with a fuel production plant 6 and a gas turbine plant 4, which in a similar manner to the gas turbine plant 4 from FIG. is building. The gas turbine power plant 2 in FIG 3 corresponds ei ^¬ ner third stage.

The following description is essentially limited to the differences from the exemplary embodiment from FIG. 2, to which reference is made with regard to features and functions that remain the same. Essentially identical elements are generally designated by the same reference numerals, and features not mentioned are taken over into the following exemplary embodiment, without being described again.

The fuel-producing plant 6 of the gas turbine power plant 2 comprises an electrolysis unit 94, a gas storage 95, a storage ^¬ 98, a synthesis unit 100 and a fuel storage 102. The gas storage 95 is designed as a combined storage for oxygen 72 and carbon dioxide 82. Next to the gas ^¬ memory holds 95 two chambers 96, 97, which are separated by a wall 99th In addition, the includes

Fuel Generating Unit 6 a compressor 104 for oxygen 72, which compressor 104 is driven by its own engine 106, and a compressor 104 for carbon dioxide 82, which compressor 104 is also driven by its own motor 106. The outlet 78 of the gas turbine system 4 is connected to the Gasspei ^¬ cher 95, in particular with a first chamber 96 of the Gasspei ^¬ Chers 95. Moreover, the gas reservoir 95, in particular the first chamber 96 of the gas reservoir 95, connected to the Syn ^¬ synthesis unit 100th

Further, the further output 87 of the separation unit 14 is connected to the electrolysis unit 94. Between the separation unit 14 and the electrolysis unit 94, a water tank can also (not shown) may be disposed to least zumin- of storing part 68 of the abge ^¬ separated by the separation unit 14 water 66th The electrolysis unit 94 is (the output side) to the Syn ^¬ synthesis unit 100th Furthermore, the electrolysis unit 94 (on the output side) is connected to the gas reservoir 95, in particular to the second chamber 97 of the gas reservoir 95.

Furthermore, the gas reservoir 95, in particular the second chamber 97 of the gas reservoir 95, is connected to the burner 10 of the gas turbine plant 4. The fuel generating system 6 is adapted to generate, insbeson ^¬ particular for synthesis, a fuel 70th The fuel 70 is methane and / or methanol.

The water 45 supplied to the saturation unit 44 is treated tap water. Alternatively or additionally, the AufSättigungseinheit 44 could be also supplied from the separating unit 14 from ^¬ separated water (see FIG. 2). Conversely, the saturation unit 44 in FIG. 2 could alternatively or additionally be supplied with treated tap water.

The outlet 78 of the gas turbine system 4, through which a portion 82 of the separated first exhaust component is discharged from the gas ^turbine installation 4 56, in this exemplary example, an output 92 of the return pipe 30. The first exhaust gas component is carbon dioxide.

That is, in contrast to FIG. 2 (in which only part of the separated carbon dioxide 56 has been carried out via the first outlet 26 of the separation unit 14), a first part 60 and a second part 82 of FIG abge ^¬ separated carbon dioxide 56 removed in common via the first output 26 from the separation unit fourteenth The first part 60 of the separated carbon dioxide 56 is then supplied as a second working medium 25 to the inlet 25 for the second working medium 25. The fuel generating system 6 carbon dioxide fed 82 corresponds to that of the gas turbine system 4 let through the initial 78 discharged carbon dioxide 82. The the Brennstofferzeu ^generating installation 6 carbon dioxide fed 82 is another portion of the separated carbon dioxide 56, as the second ^working medium 25th

The discharged from the gas turbine plant 4 carbon dioxide 82 is in the gas storage 95, in particular in the first chamber 96, out and can there at least partially stored ^¬ chert. Further, the from the gas turbine system 4 from ^¬ guided carbon dioxide 82 can be at least partially the Syntheseein ^¬ integral are fed 100th In this case, the compressor 104 arranged between the gas storage 95 and the synthesis unit 100 compresses the carbon dioxide 82 before the latter 82 is supplied to the synthesis unit 100.

At least part 68 of the water removed from the separation unit 14 ^¬ water 66 is supplied to the electrolysis unit 94. The electrolysis unit 94 can have an additional water connection (not shown), via which water 68 can be supplied from another source (eg tap water). In addition, the electrolysis unit 94 is supplied with waste heat 62 from the synthesis unit 100 and / or from the gas turbine plant 4. Next, the electrolysis unit 94 to the genera ^¬ tor 32 of the gas turbine plant 4, in particular via the power ^¬ network 36, electrically connected, so that the electrolysis unit 94 electrical energy can be supplied. In the electrolysis unit 94 is an electrolytic Runaway ^¬ leads, wherein in the (electrolysis unit 94 supplied ^¬ led) water 68, a starting material and an oxidizing agent is generated. The starting material is hydrogen 108 and the oxidizing agent is oxygen 72. The electrolysis can be carried out in a water bath, ie in the liquid phase. The electrolysis is preferably carried out in steam, ie in the gas phase. The (generated in the electrolysis) oxygen 72 is supplied to the gas storage 95 and at least partially stored in the gas ^¬ memory 95. Further, the oxygen 72 at ^¬ least partially the gas turbine system 4, in particular the burner 10 is supplied. In particular, the Elektrolyseein ^¬ standardized 94 has its output connected with the oxidant input 77 of the burner 10 degrees. Here, the arranged between the gas ^¬ memory 95 and the burner 10 compressor 104 compresses the oxygen 72 before the latter 72 is fed to the burner 10th

The gas turbine system 4 includes - in addition to the (first) oxidant input 77 to the torch 10 - a second shiftable Oxidationsmittleingang 77 to the feed line 19. In particular, the electrolysis unit 94 is output ^¬ side is connected to the oxidizer input 77 of the feed line nineteenth By means of the second oxidant inlet 77 on the supply line 19, oxidizing agent 72, in particular oxygen 72, can be introduced into the compressor station 8 (in particular during operation with the second working medium 25).

The produced (in the electrolysis), hydrogen 108 can ^¬ least partially the memory 98 of the Brennstofferzeugungsan- 6 would be supplied. In addition, the generated (in electrophotography ^¬ analysis) hydrogen 108 may at least partially be fed to the 100 Syn ^¬ synthesis unit.

The synthesis unit 100 is configured to synthesize the fuel 70. The fuel 70 is synthesized from the What ^¬ serstoff 108 and discharged from the gas turbine system 4 first exhaust gas constituent 82nd Then the

Fuel 70 is supplied to the fuel storage 102. Of the

Fuel 70 may be stored at least partially within the fuel supply 102. In this way, energy can be ge ^¬ stores. Furthermore, the fuel 70 can be at least partially supplied to the gas turbine plant 4, in particular the burner 10 of the gas turbine plant 4. In principle, the fuel produced can be at least partially removed from the gas turbine power plant 2, z. By being made available to the petroleum industry (not shown).

Further, the burner could also be supplied with other fuel than the fuel produced in the fuel-producing plant, for example, subsidized fuel.

The gas turbine system 4, in particular the return line 30, in addition has another outlet 84 through which another portion of the separated carbon dioxide can be 86 56 abge ^¬ leads. The other part 86 of the separated coal lendioxids 56 can be used, for example, in the atmosphere winnung entwei ^¬ surfaces and / or to a gas injection in a tertiary Ölge-.

When the first chamber 96 of the gas reservoir 95 (with carbon dioxide 82) is full and, accordingly, the second chamber 97 of the gas reservoir 95 is empty, i. contains no oxygen 72, then the separated carbon dioxide 60 + 82, which is discharged from the first output of the separation unit 14, discharged via the further outlet 84 of the return line from the gas turbine plant 4 and enters, for example, in the atmosphere. In this case, the gas turbine plant 4 is switched over to operation with the first working medium 17, in particular air. That is, in this case, the position of the switching device 27 is set such that the first working fluid 17 is supplied to the compressor station 8 via the inlet 17 for the first working fluid 17.

Instead of a respective memory (first chamber 96 of the gas ^¬ memory 95, second chamber 97 of the gas storage 95 and / or storage 98 for hydrogen 108) may in principle also be provided a respective pipe system. 4 shows schematically another gas turbine power plant 110 with a gas turbine system 4, a Brennstofferzeugungsan- position 6 and a steam turbine plant 112. The gas turbine power plant ^¬ 110 corresponds to stage a modified third expansion. The following description is restricted We ^¬ sentlichen the differences from the embodiment of Figure 3, to remain the same features and functions, reference is made. Essentially identical elements are always loading draws with the same reference numbers and are not mentioned features are included in the following embodiment, without being re ^¬ be enrolled.

The outlet 78 of the gas turbine plant 4 is an output 113 of the compressor outlet line 16 in this exemplary embodiment.

The discharged from the gas turbine plant 4 carbon dioxide 82 is fed to the fuel production plant 6. The fuel material production unit 6 is adapted to at least part of the egg ^¬ NEN discharged from the gas turbine 12 carbon dioxide 82 for production of fuel 70 to be used.

In contrast to FIG 2 and FIG 3 (in which the discharged from the gas turbine plant 4 part 82 of the separated first

Exhaust component 56 is another part, as the second Ar ^¬ beitsmedium 25), here the group consisting of the gas turbine system 4 from ^¬ guided part 82 of the separated first exhaust component 56, a subset of the second working medium 25th

Furthermore, in this exemplary embodiment (in contrast to FIG. 3), no second switchable oxidant inlet 77 is provided on the supply line 19, but would be conceivable in principle.

The gas storage 95 is designed here as an accumulator (in contrast to FIG. 3, in which the gas accumulator is designed to be atmospheric). The steam turbine plant 112 is coupled to the gas turbine 12 of the gas turbine plant 4. Further, the steam turbines ^¬ nena location 112 includes a heat exchanger 114, a steam turbine 116, a condenser 118 and a condensate pump 120th

The heat exchanger 114 is flowed through by at least a portion of the exhaust gas 58 from the gas turbine 12. The part of the (hot) exhaust gas 58, which flows through the heat exchanger 114, transfers thermal energy or heat to an Ar ^¬ beitsmittel - usually water or water vapor. The part of the hot exhaust gas 58, which flows through the heat exchanger 114, is supplied to the separation unit 14 after flowing through the heat exchanger 114.

The heated in the heat exchanger 114 working fluid flows through the steam turbine 116 and drives it. Further, the me ^¬ chanic energy of the steam turbine 116 is converted by means of another generator 32 into electrical energy. The electrical energy can be used as electricity in the power grid

36 are fed. Further, the generator 32 of the steam turbine plant 112 is connected to the motor 38, which drives the compressor station 8. This motor 38 and thus also the compressor station 8 can be driven by the steam turbine plant 112 (via the generator 32 of the steam turbine plant 112).

The working fluid is condensed after the steam turbine 116 in the Kon ^¬ capacitor 118 and fed back to the heat exchanger 114 by the condensate pump 120. The waste heat from the condenser 118 can be used in many ways, eg. B. as described above.

The gas turbine plant 4 in Figures 1 and 2 and the respective gas turbine power plant 2 in Figures 3 and 4, further elements, for. B. further valves 75 include. While the invention has been further illustrated and described in detail by the preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention.

Claims

claims

A gas turbine plant (4) comprising a gas turbine (12), a compressor station (8), a filter unit (13) with an inlet (15) for a first working medium (17) and a supply line (19) through which Supply line (19) an output (21) of the filter unit (13) is connected to an input (28) of the compressor station (8),

characterized in that the supply line (19) has an inlet (23) for a second working medium (25) and a

Switching device (27), by means of which is adjustable, via which of the two inlets (15, 23) a working medium (17, 25) in the compressor station (8) can be inserted.

2. Gas turbine plant (4) according to claim 1,

characterized by a drive unit (38) connected to the compressor station (8) for driving the

Compressor station (8), wherein the compressor station (8) and the gas turbine (12) each have their own shaft (11).

3. Gas turbine plant (4) according to claim 1 or 2,

characterized in that the compressor station (8) ^¬ re several compressor units (40), wherein for each of the compressor units (40) each have an own drive unit (38) is provided.

4. Gas turbine plant (4) according to one of the preceding claims,

characterized by a burner (10) which is selectively operable with the first working medium (17) or with the second working medium (25), wherein the burner (10) is a multi - stage burner (10) having a first fuel inlet (73) as well a switchable second fuel inlet (74) and at least one switchable Oxidsi-smitteleingang (77), and wherein the burner (10) is a premix burner, which comprises a swirl unit (79) with adjustable blades (81).

5. Gas turbine plant (4) according to one of the preceding claims,

is characterized by a pump (35) for evacuating the gas turbine (12), which pump (35) to the gas turbine (12) ^¬ closed.

6. Gas turbine plant (4) according to one of the preceding claims,

characterized in that the compressor station (8) and the gas turbine (12) have a carbonaceous material on ^¬ .

7. Gas turbine plant (4) according to one of the preceding claims,

characterized by a separation unit (14) which is arranged for separating a first gas component (56) from a From ^¬ gas (58) of the gas turbine (12), wherein the Ab ^¬ separating unit (14) having an input (22) connected to an output (24) of the gas turbine (12) is connected, and a first output (26) which is connected to the inlet (23) for the second working medium (25).

8. gas turbine power plant (2, 110) with a gas turbine plant (4) according to claim 7,

characterized by a fuel production system (6) which is ver ^¬ connected with an outlet (78) of the gas turbine plant (4), via which a part (82) of the separated first exhaust gas component (56) from the gas turbine plant (4) can be discharged.

9. gas turbine power plant (2, 110) according to claim 8,

characterized in that

the outlet (78) of the gas turbine plant (4) is a second outlet (80) of the separation unit (14) or the outlet (78) of the gas turbine plant (4) is an outlet (92) of a recirculation conduit (30) through which the first Output (26) of the separation unit (14) with the Inlet (23) for the second working medium (25) is connected, or that

the outlet (78) of the gas turbine plant (4) is an outlet (113) of a compressor outlet line (16), through which an outlet (18) of the compressor station (8) is provided with a

Input (20) of the gas turbine (12) is connected.

10. Gas turbine power plant (2, 110) according to claim 8 or 9, characterized in that the fuel-producing plant (6) comprises an electrolysis unit (94) and that the fuel ^¬ stofferzeugungsanlage (6) a synthesis unit (100) for Syn ^¬ thetisieren a fuel ( 70), wherein the synthesis ^¬ unit (100) on the output side with a burner (10) of the gas turbine plant (4) is connected.

11. Gas turbine power plant (2, 110) according to one of claims 8 to 10,

characterized in that the fuel generating plant (6) a gas storage comprises (95), which two chambers (96, 97) which (99) vonei ^¬ Nander are separated by a movable wall, one of said chambers (96) with the outlet (78) the gas turbine system (4) and with a Syn ^¬ synthesis unit (100) is verbun the fuel generating plant (6) ^¬ and the other chamber (97) having a Elektrolyseein- unit (94) of the fuel generating plant (6) and with a burner (10) of the gas turbine plant (4) is connected.

12. A method of operating a gas turbine system (4) comprising a gas turbine (12), a compressor station (8), a filter unit (13) having an inlet (15) for a first Ar ^¬ beitsmedium (17) and a feed line (19) comprising which supply line (19) connects an output (21) of the filter unit (13) to an input (28) of the compressor station (8),

characterized in that the supply line (19) comprises an inlet (23) for a second working medium (25) and is adjusted by means of a switching device (27) the gas turbine plant (4) is operated with the first working medium (17) or with the second working medium (25).

13. A method for operating a gas turbine plant (4) according to claim 12,

characterized in that the first working medium (17) is air and the second working medium (25) is carbon dioxide.

14. A method for operating a gas turbine plant (4) according to claim 12 or 13,

characterized in that the gas turbine plant (4) has a separation unit (14) and in the operation with the second working medium (25)

an exhaust gas (58) from the gas turbine (12) is passed into the separation unit (8),

in the separation unit (8) a first exhaust gas constituent (56) is separated from the exhaust gas (58) of the gas turbine (12),

at least a part of the exhaust gas constituents separated first part (56) via the inlet (23) for the second ^working medium (25) to the compressor station (8) is passed and is compressed therein.

15. A process for the production of fuel in a gas turbine power plant (2, 110), wherein a gas turbine plant (4) of the

Gas turbine power plant (2, 110) is operated according to claim 14,

characterized in that in the operation of the gas turbine ^¬ system (4) with the second working medium (25)

a part (82) of the separated first exhaust gas component (56) is removed from the gas turbine plant (4), the part (82) of the separated first exhaust gas constituent (56) of a fuel production plant (6) of the gas turbine power plant (2) discharged from the gas turbine plant (4) , 110) is supplied and

in the fuel generating plant (6) from which the internal ^¬ hydrogen generation system (6) supplied first Abgasbest ^¬ sand part (82), a fuel (70) is generated.