초록 ▼

A method is for operating a burner of a gas turbine. A fossil fuel is gasified and the gasified fossil fuel is fed as synthesis gas into the burner for combustion. The burner is connected to the gas turbine. The synthesis gas is divided into a first partial current and a second partial current and t

A method is for operating a burner of a gas turbine. A fossil fuel is gasified and the gasified fossil fuel is fed as synthesis gas into the burner for combustion. The burner is connected to the gas turbine. The synthesis gas is divided into a first partial current and a second partial current and the partial currents are each fed into the burner for combustion. A power plant, particularly a gas and steam turbine system, includes a gasification device for a fossil fuel.

대표청구항 ▼

The invention claimed is: 1. A method for operating a burner of a gas turbine, comprising: gassifying a fossil fuel; and feeding gasified fossil fuel as synthesis gas to the burner assigned to the gas turbine in order to be burnt, wherein the synthesis gas is provided in a first part stream and a s

The invention claimed is: 1. A method for operating a burner of a gas turbine, comprising: gassifying a fossil fuel; and feeding gasified fossil fuel as synthesis gas to the burner assigned to the gas turbine in order to be burnt, wherein the synthesis gas is provided in a first part stream and a second part stream that branches from the first part stream, the first part stream is controlled by a first control fitting, the first control fitting being a butterfly valve, located downstream of a location where the second part stream branches from the first part stream and the second part stream is controlled by a second control fitting, the second control fitting being a globe valve, in the second part stream, the first part stream is carried by a first fuel passage in the burner and the second part stream is carried by a second fuel passage in the burner, the second fuel passage having a greater flow resistance than the first fuel passage and is arranged for also carrying a natural fuel to the burner, and the control streams are fed separately to the burner to be burnt. 2. The method as claimed in claim 1, wherein at least one of natural gas and steam is admixed to at least one of the part streams in order to change the calorific value of one of the part streams from the other of the part streams. 3. The method as claimed in claim 2, wherein the part streams are set as a function of the power which is to be produced by the gas turbine. 4. The method as claimed in claim 2, wherein, during at least one of minimum load and idling operation of the gas turbine, one of the part streams is zero. 5. The method as claimed in claim 1, wherein the part streams are set as a function of the power which is to be produced by the gas turbine. 6. The method as claimed in claim 5, wherein, during at least one of minimum load and idling operation of the gas turbine, one of the part streams is zero. 7. The method as claimed in claim 1, wherein, during at least one of minimum load and idling operation of the gas turbine, one of the part streams is zero. 8. The method of claim 1, further comprising the step of separately burning the first part stream and the second part stream. 9. The method as claimed in claim 1, wherein the natural fuel is different from the synthesis gas. 10. A power plant installation, comprising: a gas turbine, assigned a combustion chamber, including at least one burner, and including a fuel system connected upstream of the combustion chamber; a gasification device for fossil fuel; a gas line, branching off from the gasification device and opening out into the combustion chamber; a further gas line, branching off from the gas line upstream of the combustion chamber, the gas line being connected to a first fuel passage of the burner and the further gas line being connected to a second fuel passage, separated in terms of flow from the first fuel passage of the burner; and a feed device which includes at least a natural gas feed system, the feed device connecting to the second fuel passage, wherein a control fitting is provided in the gas line down stream of the location where the further gas line branches off from the gas line and another control fitting is provided in the further gas line, the second fuel passage having a greater flow resistance than the first fuel passage, and wherein the control fitting provided in the gas line is a butterfly valve and the another control fitting provided in the further gas line is a globe valve. 11. The power plant installation as claimed in claim 10, wherein a gas lock, arranged upstream of the location where the further gas line branches off from the gas line, is connected into the gas line. 12. The power plant installation as claimed in claim 11, wherein at least one of natural gas and steam is deliverable to the further gas line via a feed device. 13. The power plant installation as claimed in claim 11, wherein synthesis gas, generated in the gasification device, is feedable to the further gas line. 14. The power plant installation as claimed in claim 10, wherein at least one of natural gas and steam is deliverable to the further gas line via the feed device. 15. The power plant installation as claimed in claim 14, wherein synthesis gas, generated in the gasification device, is feedable to the further gas line. 16. The power plant installation as claimed in claim 10, wherein synthesis gas, generated in the gasification device, is feedable to the further gas line. 17. The power plant installation as claimed in claim 10, wherein a configuration as a gas and stream turbine installation includes a heat recovery steam generator connected downstream of the gas turbine on the flue gas side and the heating surfaces connected into the water steam circuit of a steam turbine. 18. The power plant installation as claimed in claim 10, wherein at least one of the natural gas and steam is admixed to at least one of the first fuel passage and the second fuel passage in order to change the calorific value of one of the fuel passages from the other of the fuel passages. 19. A method for operating a burner of a gas turbine, comprising: gassifying a fossil fuel; separately feeding a divided first part and a divided second part of the gasified fuel to the burner for burning; and independently controlling the divided first part and the divided second part of the gasified fuel to the burner for burning using a first control fitting, the first control fitting being a butterfly valve, located downstream of a location where the divided second part branches from the divided first part and the divided second part stream is controlled by a second control fitting, the second control fitting being a globe valve, in the divided second part and the first part stream is carried by a first fuel passage in the burner and the second part stream is carried by a second fuel passage in the burner, the second fuel passage having a greater flow resistance than the first fuel passage and arranged for also carrying a natural fuel to the burner. 20. The method of claim 19, further comprising the step of separately burning the first part and the second part. 21. The method as claimed in claim 19, wherein the first part and the second part are each fed to the burner in a controlled manner. 22. The method as claimed in claim 19, wherein at least one of natural gas and steam is admixed to at least one of the parts in order to change the calorific value of one of the part streams from the other of the part streams. 23. The method as claimed in claim 19, wherein the parts are set as a function of the power which is to be produced by the gas turbine. 24. The method of claim 19, wherein the natural fuel is different from the gasified fuel. 25. An apparatus for operating a burner of a gas turbine, comprising: means for gassifying a fossil fuel; means for separately feeding a divided first part and a divided second part of the gasified fuel to the burner for burning; and means for independently controlling the divided first part and the divided second part of the gasified fossil fuel wherein the means for controlling the divided first part includes a butterfly valve provided in a gas line down stream of a location where the divided second part branches off from the divided first part and the first part stream is carried by a first fuel passage in the burner and a globe valve provided in the second part stream, the second part stream being carried by a second fuel passage in the burner arranged for also carrying a natural fuel to the burner, wherein the second fuel passage has a greater flow resistance than the first fuel passage. 26. The apparatus of claim 25, wherein the natural fuel is different from the gasified fuel. 27. An apparatus, comprising: a gas turbine, assigned a combustion chamber including at least one burner, and including a fuel system connected upstream of the combustion chamber; means for gasifying fossil fuel; a gas line, connecting the gasification device and the combustion chamber; a further gas line, branching off from the gas line upstream of the combustion chamber, the gas line being connected to a first fuel passage of the burner and the further gas line being connected to a second fuel passage of the burner, separated in terms of flow from the first fuel passage; means for feeding a natural gas to the second fuel passage; and means for independently controlling the gasified fossil fuel in the gas line and the gasified fossil fuel in the further gas line, wherein the means for independently controlling the gasified fuel in the gas line includes a butterfly valve provided in the gas line down stream of the location where the further gas line branches off from the gas line and another control fitting, the another control fitting being a globe valve, provided in the further gas line and the first part stream is carried by a first fuel passage in the burner and the second part stream is carried by a second fuel passage in the burner, the second fuel passage having a greater flow resistance than the first fuel passage.