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WO2016162718A1 - Method of operating a gas turbine with yttrium and/or magnesium injection - Google Patents

Method of operating a gas turbine with yttrium and/or magnesium injection Download PDF

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Publication number
WO2016162718A1
WO2016162718A1 PCT/IB2015/000638 IB2015000638W WO2016162718A1 WO 2016162718 A1 WO2016162718 A1 WO 2016162718A1 IB 2015000638 W IB2015000638 W IB 2015000638W WO 2016162718 A1 WO2016162718 A1 WO 2016162718A1
Authority
WO
WIPO (PCT)
Prior art keywords
yttrium
gas turbine
magnesium
operating
inj ection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2015/000638
Other languages
French (fr)
Inventor
Pierre Montagne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Energy Products France SNC
Original Assignee
GE Energy Products France SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GE Energy Products France SNC filed Critical GE Energy Products France SNC
Priority to PCT/IB2015/000638 priority Critical patent/WO2016162718A1/en
Publication of WO2016162718A1 publication Critical patent/WO2016162718A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/12—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/10—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to unwanted deposits on blades, in working-fluid conduits or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/007—Preventing corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/30—Preventing corrosion or unwanted deposits in gas-swept spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/08—Preparation of fuel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/0213—Group II metals: Be, Mg, Ca, Sr, Ba, Ra, Zn, Cd, Hg
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0204—Metals or alloys
    • C10L2200/0218—Group III metals: Sc, Y, Al, Ga, In, Tl
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/12—Light metals
    • F05D2300/125—Magnesium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/16—Other metals not provided for in groups F05D2300/11 - F05D2300/15
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2300/00—Pretreatment and supply of liquid fuel
    • F23K2300/10—Pretreatment
    • F23K2300/103—Mixing with other fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05081—Treating the fuel with catalyst to enhance combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2221/00—Pretreatment or prehandling
    • F23N2221/10—Analysing fuel properties, e.g. density, calorific

Definitions

  • the invention relates to corrosion inhibitors for gas turbine, in particular for high temperature corrosion inhibitors associated to vanadium in the presence of sodium and/or potassium for the combustion.
  • Yttrium and magnesium are well known corrosion inhibitors for Vanadium in liquid fuel .
  • Vanadium corrosion at high temperature is usually inhibited by magnesium to form Mg3 V208 (refractory) .
  • Mg3 V208 refractory
  • magnesium is not effective.
  • vanadium tends to form compounds with sodium which may foul the blades in gas turbine and which induce irreversibl e lo ss of performance in gas turbine due to non-washable deposits .
  • the Yttrium has proved to be more effective reactive than magnesium compared to the Vanadium in presence of sodium or potassium in heavy oil . During reaction it can form YV04 preventing Sodium reaction with vanadium . Therefore using Yttrium one can prevent non-washable deposits in blades or in hot gas paths in gas turbine .
  • the invention is a method of inj ection of Yttrium and/or Magnesium which can be used in a gas turbine combustor.
  • Yttrium i s highly solubl e in water and allows it to be easily transportable . Thus it is stored in the form of Yttrium nitrate or sulfate in a concentrated aqueous solution (in example 70% saturation) and inj ected using either a dosing pump or venturi nozzle.
  • a concentrated aqueous solution in example 70% saturation
  • the advantage of this method is to ensure the optimal mixing of additives in liquid before inj ection.
  • a direct inj ection method i s used using water solubilized or solid Yttrium salts or Magnesium salts.
  • Inj ection can be performed through an on-line optimized mixer (for example static or dynami c ) with di stributor in the following systems : liquid fuel system or liquid and water emul sion or air atomizing or water inj ection, or a dedicated nozzle installed in combustion chamber.
  • the advantage of thi s method i s cost cost.
  • the sodium, potassium and vanadium percentage can be measured in fuel .
  • a controller regulates inj ection either Yttrium or Magnesium flow rate .
  • the water inj ection system upstream of the combustion chamber of the gas turbine using a mixer between water solubl e liquids.
  • Thi s route of inj ection may be used only for machines that contain a water inj ection system (eg. to increase power or to reduce emi ssions of nitrogen oxides NOx) .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)

Abstract

A method for operating a gas turbine using a liquid fuel combustible contaminate with vanadium and/or potassium and/or sodium, characterized in that Yttrium and/or Magnesium is injected in the fuel in a selective way.

Description

Method of operating a gas turbine with Yttrium and/or Magnesium inj ection
The invention relates to corrosion inhibitors for gas turbine, in particular for high temperature corrosion inhibitors associated to vanadium in the presence of sodium and/or potassium for the combustion.
Yttrium and magnesium are well known corrosion inhibitors for Vanadium in liquid fuel . For example US00RE61 17E and US 20100199546 Al di sclo se methods for regulating vanadium inhibitor in a gas turbine. In addition, US 2014 / 03 1 5 136 di sclo ses a method of operating a gas turbine to inhibit vanadium corrosion.
These two additives are typically used in oil- soluble solution and mixed into the fuel prior to inj ection into the combustion chambers.
Vanadium corrosion at high temperature is usually inhibited by magnesium to form Mg3 V208 (refractory) . However, in presence of a significant amount of sodium or potassium in the flammable mixture (of the order of > 1 ppm in air or oil or water), magnesium is not effective. Actually vanadium tends to form compounds with sodium which may foul the blades in gas turbine and which induce irreversibl e lo ss of performance in gas turbine due to non-washable deposits .
Thus the problem solved by the present invention i s to ensure a corrosion inhibitor inj ection in an effective way preventing problem known.
The Yttrium has proved to be more effective reactive than magnesium compared to the Vanadium in presence of sodium or potassium in heavy oil . During reaction it can form YV04 preventing Sodium reaction with vanadium . Therefore using Yttrium one can prevent non-washable deposits in blades or in hot gas paths in gas turbine .
Features and advantages of the invention will become apparent from the following description, in view of the appending drawing illustrating embodiments of a method and installation according to the invention.
The invention is a method of inj ection of Yttrium and/or Magnesium which can be used in a gas turbine combustor. Yttrium i s highly solubl e in water and allows it to be easily transportable . Thus it is stored in the form of Yttrium nitrate or sulfate in a concentrated aqueous solution (in example 70% saturation) and inj ected using either a dosing pump or venturi nozzle. One example of a method of inj ection of Yttrium and/or
Magnesium will now be described.
According to a first embodiment, a premixed inj ection i s carri ed out using water solubilized or solid Yttrium salt or Magnesium salt premixed with liquid in a dedi cated tank equipped with a dynamic mixer. Then inj ection of mixed solution i s inj ected on liquid fuel system or air atomizing or water inj ection, or a dedicated nozzl e installed in combustion chamber or emul sion of water and liquid fuel system . The advantage of this method is to ensure the optimal mixing of additives in liquid before inj ection.
According to another embodiment, a direct inj ection method i s used using water solubilized or solid Yttrium salts or Magnesium salts. Inj ection can be performed through an on-line optimized mixer (for example static or dynami c ) with di stributor in the following systems : liquid fuel system or liquid and water emul sion or air atomizing or water inj ection, or a dedicated nozzle installed in combustion chamber. The advantage of thi s method i s cost.
In both methods, the sodium, potassium and vanadium percentage can be measured in fuel . Depending on ppm quantity measured a controller regulates inj ection either Yttrium or Magnesium flow rate .
In example : If (vanadium > 0, 5ppm AND sodium + potassium % is greater than l ppm) then inj ection of YTTRIUM el se inj ection of Yttrium or Magnesium depending on end user choice.
If vanadium < 0, 5 ppm no inj ection. - the fuel upstream of the combustion chambers using a mixer (for example static or dynamic) which is effective to ensure a stable mixture (or even to create an emul sion) these two immi scible liquids .
- The water inj ection system upstream of the combustion chamber of the gas turbine using a mixer between water solubl e liquids. Thi s route of inj ection may be used only for machines that contain a water inj ection system (eg. to increase power or to reduce emi ssions of nitrogen oxides NOx) .

Claims

1 . A method for operating a gas turbine using a liquid fuel combustible contaminate with vanadium and/or potassium and/or sodium, characterized in that Yttrium and/or Magnesium is inj ected in the fuel in a selective way .
2. Method according to claim 1 wherein the selection of Yttrium and/or magnesium i s made according to the quantity of sodium and/or magnesium in the liquid fuel combustible
PCT/IB2015/000638 2015-04-10 2015-04-10 Method of operating a gas turbine with yttrium and/or magnesium injection Ceased WO2016162718A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2015/000638 WO2016162718A1 (en) 2015-04-10 2015-04-10 Method of operating a gas turbine with yttrium and/or magnesium injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2015/000638 WO2016162718A1 (en) 2015-04-10 2015-04-10 Method of operating a gas turbine with yttrium and/or magnesium injection

Publications (1)

Publication Number Publication Date
WO2016162718A1 true WO2016162718A1 (en) 2016-10-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017096334A1 (en) * 2015-12-03 2017-06-08 General Electric Company Yttrium and magnesium based vanadium corrosion inhibitors
US10184091B2 (en) 2015-12-03 2019-01-22 General Electric Company Yttrium and magnesium based vanadium corrosion inhibitors
EP3438326A1 (en) * 2017-08-01 2019-02-06 General Electric Company Systems and methods for vanadium corrosion inhibitors
US10844788B2 (en) 2017-06-19 2020-11-24 General Electric Company Fuel additive injection system and methods for inhibiting coke formation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5637118A (en) * 1994-06-30 1997-06-10 United Technologies Corporation Vanadium corrosion inhibitor
US20030159338A1 (en) * 2000-06-19 2003-08-28 Michel Moliere Use of nickel compounds as vanadium corrosion inhibitors
WO2004026996A1 (en) * 2002-09-17 2004-04-01 Systemseparation Sweden Ab Fuel additive composition and its preparation
US20100199546A1 (en) 2009-02-10 2010-08-12 General Electric Company Regulating vanadium inhibitor in a gas turbine
US20140315136A1 (en) 2013-04-23 2014-10-23 General Electric Company Methods of operating a gas turbine to inhibit vanadium corrosion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5637118A (en) * 1994-06-30 1997-06-10 United Technologies Corporation Vanadium corrosion inhibitor
US20030159338A1 (en) * 2000-06-19 2003-08-28 Michel Moliere Use of nickel compounds as vanadium corrosion inhibitors
WO2004026996A1 (en) * 2002-09-17 2004-04-01 Systemseparation Sweden Ab Fuel additive composition and its preparation
US20100199546A1 (en) 2009-02-10 2010-08-12 General Electric Company Regulating vanadium inhibitor in a gas turbine
US20140315136A1 (en) 2013-04-23 2014-10-23 General Electric Company Methods of operating a gas turbine to inhibit vanadium corrosion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017096334A1 (en) * 2015-12-03 2017-06-08 General Electric Company Yttrium and magnesium based vanadium corrosion inhibitors
US10184091B2 (en) 2015-12-03 2019-01-22 General Electric Company Yttrium and magnesium based vanadium corrosion inhibitors
US10844788B2 (en) 2017-06-19 2020-11-24 General Electric Company Fuel additive injection system and methods for inhibiting coke formation
EP3438326A1 (en) * 2017-08-01 2019-02-06 General Electric Company Systems and methods for vanadium corrosion inhibitors
US10907547B2 (en) 2017-08-01 2021-02-02 General Electric Company Systems and methods for vanadium corrosion inhibitors

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