JPH0331902B2 - - Google Patents
Info
- Publication number
- JPH0331902B2 JPH0331902B2 JP11352387A JP11352387A JPH0331902B2 JP H0331902 B2 JPH0331902 B2 JP H0331902B2 JP 11352387 A JP11352387 A JP 11352387A JP 11352387 A JP11352387 A JP 11352387A JP H0331902 B2 JPH0331902 B2 JP H0331902B2
- Authority
- JP
- Japan
- Prior art keywords
- water vapor
- gas
- methanol
- combustion
- gas turbine
- 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.)
- Expired
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 75
- 238000002485 combustion reaction Methods 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002407 reforming Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 42
- 230000000694 effects Effects 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
- F01K21/047—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas having at least one combustion gas turbine
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、燃料のメタノール改質ガスとその燃
焼用空気の双方が多量の水蒸気を含有する低カロ
リーの混合ガスを使用して、安定した燃焼を行う
ことができるエネルギー効率の高いメタノール改
質型ガスタービンの運転方法に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention uses a low-calorie mixed gas in which both the methanol reformed gas as fuel and the air for its combustion contain a large amount of water vapor. The present invention relates to a method of operating a highly energy-efficient methanol reforming gas turbine that can perform combustion.
従来、ガスタービンの廃熱を利用して原料メタ
ノールおよび水を予熱してそれぞれガス化すると
共に、所定の温度に加熱して改質反応器に供給し
反応を行わせることによつて改質ガスを得、この
改質ガスをタービンの燃料として使用するメタノ
ール改質型ガスタービンの運転方法は公知である
（たとえば、特開昭61−149532号公報）。
Conventionally, raw materials methanol and water are preheated and gasified using waste heat from a gas turbine, and reformed gas is produced by heating them to a predetermined temperature and supplying them to a reforming reactor for reaction. A method of operating a methanol reforming gas turbine in which the reformed gas is obtained and the reformed gas is used as turbine fuel is known (for example, Japanese Patent Laid-Open No. 149532/1983).
通常、メタノール改質ガスは多量の水蒸気を含
有する低カロリーガスであり、かつ燃焼用空気が
多量の水蒸気を含むときは、安定して燃焼させる
ことが困難であり、このような改質ガスを燃料に
使用する限り、上記タービンを良好、かつ安定し
て運転することができない。 Normally, methanol reformed gas is a low-calorie gas that contains a large amount of water vapor, and when the combustion air contains a large amount of water vapor, it is difficult to stably burn the reformed gas. As long as it is used as fuel, the turbine cannot be operated satisfactorily and stably.
しかしながら、廃熱を効率的に利用する上記ガ
スタービンの運転において、上記メタノール改質
ガスのみならず、燃焼用空気としても水蒸気量を
含有するものを使用できない限り、熱効率および
出力向上に対して意味がないし、設備コストおよ
び管理上も好ましいことではない。 However, in the operation of the gas turbine that utilizes waste heat efficiently, unless it is possible to use not only the methanol reformed gas but also the combustion air that contains water vapor, it will have no effect on improving thermal efficiency and output. This is not desirable in terms of equipment costs and management.
したがつて、メタノール改質ガス並びに燃焼用
空気中に含有される水蒸気量に左右されることな
しに、両者をそのまま利用し、ガスタービンを安
定に運転できることは、上記タービンの廃熱を利
用するメタノール改質型タービンの運転上極めて
重要であると言える。 Therefore, it is possible to operate the gas turbine stably by using both the methanol reformed gas and the combustion air without being affected by the amount of water vapor contained in the combustion air. This can be said to be extremely important for the operation of methanol reforming turbines.
本発明の目的は、上記メタノール改質ガスのみ
ならず、燃焼用空気が多量の水蒸気を含有してい
ても、安定して燃焼させ、タービンを運転するこ
とができる方法を提供するにある。
An object of the present invention is to provide a method that allows stable combustion and operation of a turbine even when not only the methanol reformed gas but also the combustion air contains a large amount of water vapor.
このような本発明の目的は、
燃料のメタノール改質ガスおよび燃焼用空気を
ガスタービンの燃焼器に供給し、燃焼させるに際
して、上記メタノール改質ガスとして水蒸気を含
有するガスを供給すると共に、燃焼用空気の少な
くとも80容量％についても水蒸気を含有する空気
を燃焼器の二次燃焼領域以降供給し、かつ燃焼用
空気20容量％以下については実質的に水蒸気を含
有していない空気を一次燃焼領域に供給し、燃焼
せしめることによつて達成することができる。
The object of the present invention is to supply a gas containing water vapor as the methanol reformed gas and to combust the methanol reformed gas and combustion air when the fuel is supplied to the combustor of a gas turbine and combusted. At least 80% by volume of the combustion air is supplied with water vapor-containing air after the secondary combustion area of the combustor, and up to 20% by volume of the combustion air is supplied with air that does not substantially contain water vapor in the primary combustion area. This can be achieved by supplying it to a gas and burning it.
すなわち、本発明の特徴は、上記ガスタービン
の運転に当たつて、燃料のメタノール改質ガスの
みならず、燃焼用空気も多量の水蒸気を含み、通
常安定して燃焼させることが出来ないガスタービ
ンの運転用の混合燃料ガスを、有効、かつ安定に
燃焼させ、何等支障なくガスタービンを運転させ
るものである。 In other words, the feature of the present invention is that when the gas turbine is operated, not only the methanol reformed gas as fuel but also the combustion air contains a large amount of water vapor, and the gas turbine cannot normally be stably combusted. This system effectively and stably burns the mixed fuel gas used for the operation of the gas turbine, thereby allowing the gas turbine to operate without any problems.
以下、図面に基づいて本発明の実施例を具体的
に説明する。 Embodiments of the present invention will be specifically described below based on the drawings.
図は、本発明のガスタービンの運転方法を説明
するためのフローチヤート図である。 The figure is a flowchart for explaining the method of operating a gas turbine according to the present invention.
図において、メタノールと水とは、それぞれ矢
印方向に向かつて供給され、ガスタービン４の排
気ダクト１内に導かれてそれぞれガス化され、ガ
ス化したメタノールガスおよび水蒸気はさらに上
記排気ダクト１内で加熱、昇温せしめられ、所定
の温度に達したところで混合される。ここで混合
割合としては、メタノールガス20〜50容量％に対
して、水蒸気を80〜50容量％の範囲内である。 In the figure, methanol and water are each supplied in the direction of the arrow, guided into the exhaust duct 1 of the gas turbine 4 and gasified, and the gasified methanol gas and water vapor are further fed into the exhaust duct 1. The mixture is heated and raised to a predetermined temperature, and then mixed. Here, the mixing ratio is within the range of 80 to 50% by volume of water vapor to 20 to 50% by volume of methanol gas.
次いで混合されたガスは、さらに排気ダクト１
内に導かれて、所定の温度に加熱された後、メタ
ノールの改質触媒の充填されている改質反応器２
に導入される。該改質反応器２中で改質され、カ
ロリーアツプされた改質ガスは、そのまま燃料と
してタービン４の燃焼器５にに送られる。 The mixed gas is then further passed through the exhaust duct 1
After being guided into the methanol reforming reactor 2 and heated to a predetermined temperature, it is filled with a methanol reforming catalyst.
will be introduced in The reformed gas that has been reformed in the reforming reactor 2 and has increased calories is sent as is to the combustor 5 of the turbine 4 as fuel.
一方、燃焼用空気は、圧縮器６（コンプレツサ
ー）によつて圧縮され、分岐バルブＢで分離され
て、その少なくとも80容量％の圧縮空気は、前記
排気ダクトで加熱された水蒸気と混合されて、さ
らに排気ダクトで加熱、温度コントロールを行つ
た後、燃焼器５の二次燃焼領域以降に送られる。 Meanwhile, the combustion air is compressed by a compressor 6 (compressor) and separated by a branch valve B, and at least 80% by volume of the compressed air is mixed with water vapor heated in the exhaust duct, After being further heated and temperature controlled in the exhaust duct, it is sent to the secondary combustion area of the combustor 5 and beyond.
そして、上記分岐バルブＢで分離された残りの
20容量％以下の実質的に水蒸気を含有していない
圧縮空気は、排気ダクト１内に導き、同様に所定
温度に昇温させた後燃焼器５の一次燃焼領域以降
に供給される。 Then, the remaining water separated by the branch valve B is
Compressed air that does not substantially contain water vapor of 20% by volume or less is guided into the exhaust duct 1, similarly heated to a predetermined temperature, and then supplied to the primary combustion region of the combustor 5 and beyond.
なお、上記メタノール改質ガスの水蒸気含有許
容量は、通常多くとも30要領％、好ましくは１〜
20容量％であり、多量の水蒸気の含有を許容す
る。 Note that the permissible water vapor content of the methanol reformed gas is usually at most 30%, preferably 1 to 1%.
It is 20% by volume and allows a large amount of water vapor to be contained.
一方、圧縮器６からの圧縮空気中に含有される
水蒸気の許容量は、30容量％以下、好ましくは１
〜５容量％であり、燃料のメタノール改質ガス同
様に、多量の水蒸気の含有を許容する。 On the other hand, the permissible amount of water vapor contained in the compressed air from the compressor 6 is 30% by volume or less, preferably 1% by volume.
~5% by volume, and allows the inclusion of a large amount of water vapor, similar to the methanol reformed gas of the fuel.
以下、実施例により本発明の効果を具体的に説
明する。
EXAMPLES Hereinafter, the effects of the present invention will be specifically explained with reference to Examples.
図において、燃焼器５中に、水蒸気を20容量％
含有する230℃の高温メタノール改質ガスを27.5
Kg／Ｓを用いて、水蒸気を５容量％含有する496
℃の高温燃焼用空気を222Kg／Ｓを二次燃焼領域
以降に供給し、実質的に水蒸気を含有していない
496℃の燃焼用空気を52Kg／Ｓを一次燃焼領域に
供給し、ガスタービン４を運転した。その結果、
安定した燃焼が得られ、ガスタービンの安定した
運転が達成できた。 In the figure, 20% by volume of water vapor is added to the combustor 5.
27.5% high temperature methanol reformed gas containing 230℃
496 containing 5% water vapor by volume using Kg/S
℃ high-temperature combustion air of 222 kg/s is supplied to the secondary combustion area and beyond, and contains virtually no water vapor.
The gas turbine 4 was operated by supplying 52 kg/s of combustion air at 496° C. to the primary combustion region. the result,
Stable combustion was obtained and stable operation of the gas turbine was achieved.
次に、比較のため、上記ガスタービンの運転中
に、一次燃焼領域に供給している空気中に水蒸気
を混入させていつたところ、火炎の安定性が低下
し、振動燃焼や失火が生じて該ガスタービンのが
停止した。 Next, for comparison, when water vapor was mixed into the air supplied to the primary combustion region during operation of the gas turbine described above, flame stability decreased, oscillating combustion and misfires occurred, and The gas turbine stopped.
本発明によれば、次のような多くの優れた効果
が得られる。
According to the present invention, many excellent effects such as the following can be obtained.
(1) 燃料および燃焼用空気に多量の水蒸気を含有
し、カロリーが低くて通常はそのままでは、安
定して燃焼させることができないメタノール改
質ガスを燃料として安定して燃焼させることが
できる。換言すれば、燃焼用空気中に含有され
る水蒸気量を特に制御する必要がない。(1) Methanol reformed gas, which normally cannot be stably combusted as it is because the fuel and combustion air contain a large amount of water vapor and has a low calorie, can be stably combusted as a fuel. In other words, there is no need to particularly control the amount of water vapor contained in the combustion air.
(2) 水分や水蒸気を多量に含有する空気であつて
も、燃焼に利用できるので、タービンの起動か
ら定格運転までの広い範囲内の運転が可能であ
る。(2) Even air containing a large amount of moisture or water vapor can be used for combustion, making it possible to operate the turbine within a wide range from startup to rated operation.
(3) 多量の水蒸気の含有を許容するので、燃焼器
の内筒の温度を低温に保つことができる。(3) Since it allows the inclusion of a large amount of water vapor, the temperature of the inner cylinder of the combustor can be maintained at a low temperature.
(4) ガスタービンの廃熱を最大限利用することが
でき、該タービンを用いた発電（エネルギー）
効率を向上させることができる。(4) The waste heat of the gas turbine can be used to the maximum extent, and power generation (energy) can be achieved using the turbine.
Efficiency can be improved.
図は、本発明のメタノール改質型ガスタービン
の運転方法を説明するフローチヤート図である。
１……排気ダクト、２……改質器、４……ター
ビン、５……燃焼器。
FIG. 1 is a flowchart illustrating a method of operating a methanol reforming gas turbine according to the present invention. 1...Exhaust duct, 2...Reformer, 4...Turbine, 5...Combustor.
Claims (1)
をガスタービンの燃焼器に供給し、燃焼させるに
際して、上記メタノール改質ガスとして水蒸気を
含有するガスを供給すると共に、燃焼用空気の少
なくとも80容量％についても水蒸気を含有する空
気を供給し、かつ燃焼用空気20容量％以下につい
ては実質的に水蒸気を含有していない空気を供給
し、燃焼せしめることを特徴とするメタノール改
質型ガスタービンの運転方法。1. When supplying the fuel methanol reformed gas and combustion air to the combustor of a gas turbine and combusting it, a gas containing water vapor is supplied as the methanol reformed gas, and at least 80% by volume of the combustion air is A method for operating a methanol reforming gas turbine, characterized in that air containing water vapor is supplied for combustion air, and air containing substantially no water vapor is supplied for combustion air of 20% by volume or less, and combustion is performed. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11352387A JPS63280825A (en) | 1987-05-12 | 1987-05-12 | Operation method for methanol reforming type gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11352387A JPS63280825A (en) | 1987-05-12 | 1987-05-12 | Operation method for methanol reforming type gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63280825A JPS63280825A (en) | 1988-11-17 |
| JPH0331902B2 true JPH0331902B2 (en) | 1991-05-09 |
Family
ID=14614500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11352387A Granted JPS63280825A (en) | 1987-05-12 | 1987-05-12 | Operation method for methanol reforming type gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63280825A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6223519B1 (en) | 1999-02-11 | 2001-05-01 | Bp Amoco Corporation | Method of generating power using an advanced thermal recuperation cycle |
| US20030223926A1 (en) * | 2002-04-14 | 2003-12-04 | Edlund David J. | Steam reforming fuel processor, burner assembly, and methods of operating the same |
-
1987
- 1987-05-12 JP JP11352387A patent/JPS63280825A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63280825A (en) | 1988-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |