JPH0583739B2 - - Google Patents
Info
- Publication number
- JPH0583739B2 JPH0583739B2 JP2181486A JP2181486A JPH0583739B2 JP H0583739 B2 JPH0583739 B2 JP H0583739B2 JP 2181486 A JP2181486 A JP 2181486A JP 2181486 A JP2181486 A JP 2181486A JP H0583739 B2 JPH0583739 B2 JP H0583739B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- coal
- power generation
- coal gasification
- generation system
- 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 - Lifetime
Links
- 239000007789 gas Substances 0.000 claims description 44
- 239000003245 coal Substances 0.000 claims description 26
- 238000002309 gasification Methods 0.000 claims description 14
- 238000010248 power generation Methods 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 8
- 239000004071 soot Substances 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Industrial Gases (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は石炭ガス化複合発電システムの起動時
系外に排出されていた粗成燃焼ガスを回収するシ
ステムに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a system for recovering crude combustion gas discharged outside the start-up time of a coal gasification combined cycle power generation system.
従来の技術
石炭ガス化複合発電システムは第３図に示すご
とく、石炭を石炭ガス化炉１で高温高圧下におい
て酸素または空気と反応させ、一酸化炭素、水素
を主成分とする燃料ガスに変換し、ガスクーラ２
を経て脱じん装置３、脱硫装置４でガス中のばい
じん、硫黄化合物を除去する。このクリーンガス
をガスタービン５で燃焼し、発電機９を駆動し、
さらに高温のガスタービン排気ガスで排熱回収装
置１０において蒸気発生を行ない、ガスクーラ２
で発生した蒸気と合わせて蒸気タービン発電機１
１を駆動する複合システムで、石炭を燃料としな
がらクリーンガスに変換して使用しているため環
境適合性に優れ、なおかつ複合発電システムを用
いるため高高率な発電が可能なシステムである。Conventional technology As shown in Figure 3, a coal gasification integrated power generation system reacts coal with oxygen or air under high temperature and high pressure in a coal gasifier 1, converting it into fuel gas containing carbon monoxide and hydrogen as main components. Gas cooler 2
After that, the dust and sulfur compounds in the gas are removed by a dust removal device 3 and a desulfurization device 4. This clean gas is combusted by a gas turbine 5 to drive a generator 9,
Furthermore, steam is generated in the exhaust heat recovery device 10 using the high-temperature gas turbine exhaust gas, and the gas cooler 2
Combined with the steam generated in the steam turbine generator 1
This is a combined system that uses coal as fuel and converts it into clean gas, making it highly environmentally friendly. Furthermore, since it uses a combined power generation system, it is capable of generating electricity at a high rate.
発明が解決しようとする問題点
ところが従来の石炭ガス化複合発電システムに
おいては、起動時、ガス組成および圧力が安定
し、ガスタービンで燃焼できる条件になるまでフ
レアースタツク６で排ガスを焼却しながらガス化
炉、ガス精製装置のウオーミングをはかつてき
た。Problems to be Solved by the Invention However, in a conventional coal gasification combined cycle power generation system, at startup, the exhaust gas is incinerated in the flare stack 6 until the gas composition and pressure are stabilized and conditions are reached for combustion in the gas turbine. The gasifier and gas purification equipment have already been warmed up.
この際、通常数時間を必要とし、その間ガス精
製装置が充分機能しないためフレアースタツクか
らは未処理のガスが放出されることになり、環境
規制が厳しい立地点ではフレアースタツク用の排
煙処理装置が必要となる。 This usually takes several hours, during which time the gas purification equipment is not fully functioning and untreated gas is released from the flare stack. Processing equipment is required.
またこの間に損失するエネルギーロスも起動回
数の増加に伴ない相当規模になる。 In addition, the energy loss during this period becomes considerable as the number of activations increases.
問題点を解決するための手段
本発明は上記のような問題点に鑑み、起動時、
フレアースタツクを通じて系外に放出されていた
粗成燃料ガスを新たに設けたガスホルダータンク
に貯え、これをガス化炉、ガスクーラーのチユー
ブに付着した灰落し（スートブロワー）用として
ガス化炉内にリサイクルして使うことを特徴とす
る。Means for Solving the Problems In view of the above-mentioned problems, the present invention provides
The crude fuel gas that had been released outside the system through the flare stack is stored in a newly installed gas holder tank, and used as a soot blower to remove ash from the tubes of the gasifier and gas cooler. It is characterized by being recycled and used internally.
実施例
以下第１図に示す本発明の石炭ガス化複合発電
システムの構成を従来構成（第２図）と対比しつ
つ具体的に説明する。EXAMPLES The configuration of the coal gasification combined cycle power generation system of the present invention shown in FIG. 1 will be specifically explained in comparison with the conventional configuration (FIG. 2).
従来の対照例説明
第２図は第３図の従来の石炭ガス化複合発電シ
ステムのガス系路システムを示す。Description of Conventional Comparative Example FIG. 2 shows the gas line system of the conventional coal gasification combined cycle power generation system of FIG. 3.
起動はあらかじめ予熱されていた石炭ガス化炉
１に石炭１２および酸化剤である空気（または酸
素）１３を投入し、石炭のガス化をスタートす
る。 To start up, coal 12 and air (or oxygen) 13, which is an oxidizing agent, are introduced into the coal gasifier 1, which has been preheated, to start gasifying the coal.
石炭１２をガス化炉１に投入した直後は脱じん
装置３出口のバルブｂを閉の状態にし、バルブａ
を調整して石炭ガス化炉１、ガスクーラ（ボイ
ラ）２および脱じん装置３のウオーミングアツプ
を行なう。この間バルブａを通じてガスはフレア
ースタツク６で燃焼し系外に排出される。 Immediately after charging the coal 12 into the gasifier 1, the valve b at the outlet of the dust removal device 3 is closed, and the valve a is closed.
The coal gasification furnace 1, gas cooler (boiler) 2, and dust removal device 3 are warmed up by adjusting the temperature. During this time, the gas is combusted in the flare stack 6 and discharged to the outside of the system through valve a.
石炭ガス化炉１、ガスクーラ２および脱じん装
置３のウオーミングアツプが完了したらバルブａ
を絞りながらバルブｂを開けていき、脱硫装置４
のウオーミングアツプを開始する。系内の圧力調
整はバルブｂを閉にし、バルブｃを通じて行ない
ウオーミングアツプが終了し、ガス組成、圧力が
安定したことを確認後バルブｃ，ｄを調整し、
徐々に燃料ガスをガスタービン５に導入する。ウ
オーミングアツプの手順は変更することも可能で
ある。 After warming up the coal gasifier 1, gas cooler 2, and dust removal device 3, close valve a.
Open valve b while squeezing the desulfurizer 4.
Start warming up. The pressure in the system is adjusted by closing valve b and through valve c. After confirming that warming up has finished and the gas composition and pressure have stabilized, adjust valves c and d.
Fuel gas is gradually introduced into the gas turbine 5. The warm-up procedure can also be modified.
また脱硫装置４のウオーミングアツプ終了に合
わせてスートブロワーコンプレツサー７を起動
し、燃料ガスの一部をリサイクルして石炭ガス化
炉１、ガスクーラ２内の水壁チユーブに付着した
灰落し用として吹きつけ循環させている。 In addition, when the desulfurization equipment 4 finishes warming up, the soot blower compressor 7 is activated to recycle a portion of the fuel gas and use it to remove ash stuck to the water wall tubes in the coal gasifier 1 and gas cooler 2. It is sprayed and circulated.
本発明実施例
第１図は本発明の石炭ガス化複合発電システム
のガス系路システムの構成を示す。Embodiment of the present invention FIG. 1 shows the configuration of the gas line system of the coal gasification combined cycle power generation system of the present invention.
ガス化部本体のウオーミングアツプの方法は従
来と変わりないが、本発明では新たにバルブａ，
ｃとフレアースタツク６との間にガスホルダータ
ンク８を設置し、起動時ウオーミングアツプ用と
して排出されるガスをこのガスホルダータンク８
に貯える。 The method of warming up the gasification unit main body is the same as before, but in the present invention, valves a,
A gas holder tank 8 is installed between the flare stack 6 and the flare stack 6.
Store in.
また脱硫装置４出口から取りだしていたスート
ブロワー用配管をガスホルダータンク８から新た
に取り出すように設計し、ガスホルダータンク８
に貯蔵されたガスを適時コンプレツサー７を起動
しスートブロワー用として用いる。 In addition, the soot blower piping that had been taken out from the desulfurizer 4 outlet was designed to be taken out from the gas holder tank 8, and the gas holder tank 8
The compressor 7 is activated at appropriate times to use the gas stored in the soot blower.
さらにフレアースタツク６はガスホルダータン
ク８に接続しておき、系内のガス圧力が異常に上
昇した非常時にフレアースタツク６でガスを燃焼
できるような設備とする。 Further, the flare stack 6 is connected to a gas holder tank 8, so that the flare stack 6 can burn gas in an emergency when the gas pressure in the system increases abnormally.
発明の効果
このような石炭ガス化複合発電システムにガス
ホルダータンク８を設けた設備とするように設計
し、起動時系外に排出されていたガスをスートブ
ロワー用として再使用することにより、従来起動
時排出されていたばいじん、硫黄酸化物、窒素酸
化物などの環境汚染排出物の防止、起動時のエネ
ルギー損失の低減が可能となり、優れた効果を奏
する。Effects of the Invention By designing such a coal gasification combined cycle power generation system to be equipped with a gas holder tank 8, and reusing the gas that was discharged outside the startup time system for the soot blower, it is possible to This makes it possible to prevent environmental pollution such as dust, sulfur oxides, and nitrogen oxides that are emitted during startup, and to reduce energy loss during startup, resulting in excellent effects.
第１図は本発明による石炭ガス化複合発電シス
テムの実施例のガス系路のシステム図、第２図は
対照とする従来のガス系路のシステム図、第３図
は従来の石炭ガス化複合発電システムの一般概念
図である。
１……石炭ガス化炉、２……ガスクーラ、３…
…脱じん装置、４……脱硫装置、５……ガスター
ビン、６……フレアースタツク、７……コンプレ
ツサー、８……ガスホルダータンク、９……発電
機、１０……排熱回収装置、１１……蒸気タービ
ン発電機、１２……石炭、１３……空気または酸
素。
Figure 1 is a system diagram of a gas line in an embodiment of the coal gasification combined cycle power generation system according to the present invention, Figure 2 is a system diagram of a conventional gas line for comparison, and Figure 3 is a system diagram of a conventional coal gasification combined cycle system. 1 is a general conceptual diagram of a power generation system. 1...Coal gasifier, 2...Gas cooler, 3...
...Dust removal device, 4...Desulfurization device, 5...Gas turbine, 6...Flare stack, 7...Compressor, 8...Gas holder tank, 9...Generator, 10...Exhaust heat recovery device, 11...Steam turbine generator, 12...Coal, 13...Air or oxygen.
Claims (1)
脱硫装置）およびコンバインド発電装置（ガスタ
ービン、排熱回収ボイラ、蒸気タービン）からな
る石炭ガス化複合発電システムにおいて、石炭ガ
ス化炉とガスタービンの間にガスホルダータンク
を設け、起動時系外に排出されていたウオーミン
グアツプ用の粗成燃焼ガスをたくわえ、このガス
を石炭ガス化炉にスートブロワー用としてリサイ
クルすることを特徴とする石炭ガス化複合発電シ
ステムにおける起動時ウオーミングアツプガス排
出防止システム。1 Coal gasifier, gas purification equipment (dust removal equipment,
In a coal gasification integrated power generation system consisting of a combined power generation device (gas turbine, exhaust heat recovery boiler, and steam turbine), a gas holder tank is installed between the coal gasifier and the gas turbine, and A system for preventing warm-up gas discharge at startup in a coal gasification combined cycle power generation system, which stores crude combustion gas for warming-up that has been discharged and recycles this gas for use in a soot blower in a coal gasification furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2181486A JPS62182443A (en) | 1986-02-03 | 1986-02-03 | Exhaust preventing system for warming-up gas during starting in coal gasifying composite power generating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2181486A JPS62182443A (en) | 1986-02-03 | 1986-02-03 | Exhaust preventing system for warming-up gas during starting in coal gasifying composite power generating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62182443A JPS62182443A (en) | 1987-08-10 |
| JPH0583739B2 true JPH0583739B2 (en) | 1993-11-29 |
Family
ID=12065526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2181486A Granted JPS62182443A (en) | 1986-02-03 | 1986-02-03 | Exhaust preventing system for warming-up gas during starting in coal gasifying composite power generating system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62182443A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4494946B2 (en) * | 2004-11-26 | 2010-06-30 | 株式会社 クリーンコールパワー研究所 | Coal gasification plant and operation method thereof |
| JP5603126B2 (en) * | 2010-04-16 | 2014-10-08 | ヤンマー株式会社 | Gasification power generation system |
| JP5627724B2 (en) | 2013-02-13 | 2014-11-19 | 三菱日立パワーシステムズ株式会社 | Gasification furnace start-up method, gasification furnace, and gasification combined power generation facility |
| JP6422689B2 (en) | 2014-07-09 | 2018-11-14 | 三菱日立パワーシステムズ株式会社 | Gasification furnace equipment, gasification combined power generation equipment, and gasification furnace equipment start-up method |
-
1986
- 1986-02-03 JP JP2181486A patent/JPS62182443A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62182443A (en) | 1987-08-10 |
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