JPH0569158B2 - - Google Patents
Info
- Publication number
- JPH0569158B2 JPH0569158B2 JP10286586A JP10286586A JPH0569158B2 JP H0569158 B2 JPH0569158 B2 JP H0569158B2 JP 10286586 A JP10286586 A JP 10286586A JP 10286586 A JP10286586 A JP 10286586A JP H0569158 B2 JPH0569158 B2 JP H0569158B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- air
- slurry
- pulverized coal
- supply line
- 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 - Fee Related
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 30
- 239000001301 oxygen Substances 0.000 claims description 30
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- 238000002309 gasification Methods 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000003245 coal Substances 0.000 claims description 13
- 239000003250 coal slurry Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 244000292604 Salvia columbariae Species 0.000 description 1
- 235000012377 Salvia columbariae var. columbariae Nutrition 0.000 description 1
- 235000001498 Salvia hispanica Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000014167 chia Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
- C10J2300/1628—Ash post-treatment
- C10J2300/1634—Ash vitrification
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は微粉炭を石炭ガス化炉へ供給する微粉
炭スラリ供給方式の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a pulverized coal slurry supply system for supplying pulverized coal to a coal gasifier.
微粉炭を使用するガス化方式としては、高温高
圧のガス化炉内へ微粉炭を如何に供給するが、技
術上の一つのポイントとなつている。
Regarding the gasification method using pulverized coal, one of the technical points is how to feed the pulverized coal into the high temperature and high pressure gasification furnace.
従来より微粉炭供給方式の１つとして第２図に
示されたガス化炉２１、ピン２２、ロツクホツパ
２３、フイーダ２４、空気圧縮機２５からなるド
ライフイード方式（所謂乾式ロツクホツパ方式）
空気吹きガス化方式があり、この方式において
は、ロツクホツパを構成する機器が複雑となり微
粉炭を安定供給するための保守性に問題があつ
た。また第３図に示すガス化炉３１、ビン３２、
ロツクホツハ３３、フイーダ３４、酸素製造プラ
ント３５からなるドライフイード方式酸素吹きガ
ス化の方式によれば空気吹きの場合と同様ロツク
ホツパの保守性に問題がある他、酸素製造プラン
トの運転特性にガス化運転特性が左右されるとい
う欠点があつた。 A dry feed system (so-called dry lock hopper system) consisting of a gasifier 21, a pin 22, a lock hopper 23, a feeder 24, and an air compressor 25 is shown in FIG. 2 as one of the conventional pulverized coal supply systems.
There is an air-blown gasification system, but in this system, the equipment that makes up the lock hopper is complicated, and there are problems with maintainability to ensure a stable supply of pulverized coal. In addition, the gasifier 31, bottle 32, and
According to the dry feed oxygen-blown gasification method, which consists of a rock hopper 33, a feeder 34, and an oxygen production plant 35, there are problems with the maintainability of the rock hopper, as in the case of air blowing, and the gasification operation is affected by the operating characteristics of the oxygen production plant. The drawback was that the characteristics were affected.
また第４図に示すガス化炉４１、微粉炭スラリ
製造装置４２、スラリ噴射ポンプ４４、制御弁４
５、酸素製造プラント４３からなるスラリーフイ
ード方式酸素吹きガス化の場合においても酸素製
造ブラントの運転特性にガス化運転特性が左右さ
れるという欠点があつた。 Also shown in FIG. 4 are a gasification furnace 41, a pulverized coal slurry production device 42, a slurry injection pump 44, and a control valve 4.
5. Even in the case of the slurry feed type oxygen-blown gasification comprising the oxygen production plant 43, there was a drawback that the gasification operating characteristics were influenced by the operating characteristics of the oxygen production blunt.
本発明はドライフイード方式の構成機器の複雑
さ、保守性の難点を解消し高圧ガス化炉への微粉
炭供給の信頼性を向上させるスラリフイード方式
により空気吹きガス化と同レベルのガス化性能、
運転特性を確保し酸素吹きと同様のガス化性能の
向上をはかる事を目的とするのである。
The present invention uses a slurry feed system that eliminates the complexity of component equipment and maintenance difficulties of the dry feed system and improves the reliability of supplying pulverized coal to a high-pressure gasifier, achieving gasification performance on the same level as air-blown gasification.
The purpose is to ensure operational characteristics and improve gasification performance similar to oxygen blowing.
すなわち本発明は、二重壁構造の石炭ガス化炉
へ微粉炭をスラリフイードによつて供給するガス
化システムにおいて、ガス化炉内へ微粉炭スラリ
をバーナカツト可能な複数のスラリバーナを介し
て供給する微粉炭スラリ供給手段と、圧縮空気を
該ガス化炉内へ供給する空気供給ラインと該空気
供給ラインに酸素製造プラントより酸素を富化す
る酸素供給ラインと、該酸素製造プラントより副
性された窒素を該ガス化炉の二重壁部へ供給する
窒素供給ラインとよりなる事を特徴とする微粉炭
スラリフイード空気吹きガス化装置を提供するも
のである。
That is, the present invention provides a gasification system that supplies pulverized coal to a double-walled coal gasifier using a slurry feed. a charcoal slurry supply means, an air supply line for supplying compressed air into the gasifier, an oxygen supply line for enriching the air supply line with oxygen from an oxygen production plant, and nitrogen produced as a subsidiary from the oxygen production plant. The present invention provides an air-blown pulverized coal slurry feed air-blown gasifier characterized by comprising a nitrogen supply line that supplies nitrogen to the double wall portion of the gasifier.
複数のスラリバーナにより加圧ガス化炉内へ微
粉炭を連続的に供給し、噴射圧力制御、バーナカ
ツトでガス化炉の負荷変動に対応し空気吹き二段
ガス化炉へ酸素富化空気を導入し微粉炭スラリを
ガス化するとともに酵素製造装置で副生される窒
素によりプラントのパージ及びガス化炉の二重隔
壁（アニユラス部）のシールを行うものである。
Pulverized coal is continuously supplied into the pressurized gasifier using multiple slurry burners, injection pressure is controlled, and oxygen-enriched air is introduced into the air-blown two-stage gasifier in response to load fluctuations in the gasifier using burner cuts. The pulverized coal slurry is gasified, and the nitrogen by-produced in the enzyme production equipment is used to purge the plant and seal the double partition wall (annulus section) of the gasifier.
本実施例は、１−６，１−７の圧力容器に内蔵
されるコンバスタ１−１、リダクタ１−２後部熱
交部１−３で構成される空気吹き加圧二段噴流床
ガス化炉に関するものである。
This embodiment is an air-blown pressurized two-stage entrained bed gasifier consisting of a combustor 1-1, a reductor 1-2 and a rear heat exchanger section 1-3 built into pressure vessels 1-6 and 1-7. It is related to.
石炭は、微粉炭スラリ製造装置２−１により微
粉砕、スラリ化されスラリポンプ２−２で昇圧
後、圧力調整弁２−３及び２−５によつて噴射圧
力を調整された後、複数のバーナカツト可能なバ
ーナ２−４及び２−６で炉内に噴射される。コン
バスタ１−１、リダクタ１−２内に噴射された微
粉炭スラリは、炉内高温ガスの輻射熱によるスラ
リの乾燥、着火、燃料、ガス化が行なわれ、発生
ガスは後部熱交部１−３で冷却され連絡管１−５
により後流系へ送られる。 Coal is finely pulverized and slurried by a pulverized coal slurry manufacturing device 2-1, pressure increased by a slurry pump 2-2, and the injection pressure is adjusted by pressure regulating valves 2-3 and 2-5. It is injected into the furnace by burners 2-4 and 2-6 that can be cut. The pulverized coal slurry injected into the combustor 1-1 and the reductor 1-2 is dried, ignited, fueled, and gasified by the radiant heat of the high-temperature gas in the furnace, and the generated gas is transferred to the rear heat exchanger 1-2. Connecting pipe 1-5 is cooled by
is sent to the downstream system.
ガス化用空気は、空気圧縮機３−１で昇圧後、
酸素製造プラント３−２で製造される酸素を混合
器３−３で富化され、１次空気・２次空気３−８
としてガス化炉内に吹き込まれる。酸素富化空気
の酸素濃度は、混合器出口濃度を検出し、流量調
整弁３−４で制御される。 After the air for gasification is pressurized by the air compressor 3-1,
Oxygen produced in the oxygen production plant 3-2 is enriched in a mixer 3-3, and is then converted into primary air/secondary air 3-8.
It is blown into the gasifier as gasifier. The oxygen concentration of the oxygen-enriched air is controlled by the flow control valve 3-4 by detecting the mixer outlet concentration.
酸素製造装置３−２で副生される窒素は、プラ
ントパージ用３−７として使用されると共に、圧
力容器１−６，１−７とガス化炉１−１，１−
２，１−３の空隙にガス化炉下部管台３−６より
吹き込まれ常時シールを行ない、後部熱交部のバ
ランスポート１−４より発生ガス中へもれ込む事
により、ガス化炉の圧力バランス、ガスリーク時
の安全性向上、発生ガス中のチヤーの空隙側への
侵入防止を図つている。窒素シール量は、空隙部
のドラフトを検出し、制御弁３−５で調節する。 Nitrogen by-produced in the oxygen production device 3-2 is used as a plant purge 3-7, and is also used in pressure vessels 1-6, 1-7 and gasifiers 1-1, 1-
2, 1-3 is blown from the lower nozzle 3-6 of the gasifier to constantly seal it, and it leaks into the generated gas from the balance port 1-4 of the rear heat exchanger, causing the gas to flow into the gasifier. This is designed to improve pressure balance, improve safety in the event of a gas leak, and prevent chia in the generated gas from entering the void side. The amount of nitrogen sealed is adjusted by detecting the draft in the gap and using the control valve 3-5.
(1) スラリーバーナを複数個としガス化炉コンバ
スタ、リグクタの周上に配置することによりス
ラリバーナを小容量化することができ、炉内に
噴射されるスラリの高温ガスとの均一混合と乾
燥の促進が図れる。
(1) By arranging multiple slurry burners around the gasifier combustor and ligator, the capacity of the slurry burner can be reduced, and the slurry injected into the furnace can be uniformly mixed with high-temperature gas and dried. This can be promoted.
複数のスラリバーナは、負荷変動に対し噴射
圧力制御・バーナカツトで対応でき、従来の火
力並みの負荷応答性が確保される。 Multiple slurry burners can respond to load fluctuations through injection pressure control and burner cutting, ensuring load responsiveness comparable to that of conventional thermal power plants.
(2) 酸素富化空気をガス化剤として使用する事に
より、微粉炭スラリガス化性能をスラリフイー
ドでありながら、空気吹きドラフイードと同レ
ベルのガス化性能を得ることができる。(2) By using oxygen-enriched air as a gasifying agent, it is possible to obtain the same level of gasification performance as air-blown draft feed, even though it is a slurry feed.
(3) 酸素富化空気ガス化においては、負荷変動に
対し圧縮空気量を第一制御量、富化酸素量を第
二制御量とすることにより、酸素プラント運転
特性に支配すされることなく負荷応答性が良好
となる。(3) In oxygen-enriched air gasification, by setting the compressed air amount as the first control amount and the enriched oxygen amount as the second control amount in response to load fluctuations, the load can be adjusted without being influenced by the operating characteristics of the oxygen plant. Responsiveness becomes better.
(4) 酸素富化空気方式とするため、酸素製造装置
を小規模とでき、経済性が向上する。(4) Since the oxygen-enriched air method is used, the oxygen production equipment can be made small-scale, improving economic efficiency.
(5) 酸素製造装置で副生される窒素により、ガス
化炉の二重隔壁部（アニユラス部）のシールを
行うことにより、発生ガス漏洩時においても爆
発の可能性がなくなる。(5) By sealing the double partition wall (annulus) of the gasifier using nitrogen by-produced in the oxygen production equipment, there is no possibility of explosion even in the event of gas leakage.
第１図は本発明の１実施例の微粉炭スラリフイ
ード空気吹きガス化装置の既略図、第２図は従来
の空気圧縮機ドライフイード方式空気吹きガス化
装置の既略図、第３図は従来のドライフイード方
式酸素吹きガス化装置の概略図、第４図は従来の
スラリーフイード方式酸素吹きガス化装置の既略
図を示す。
１−１……コンバスタ、１−２……リダクタ、
１−３……熱交換器、１−４……バランスポー
ト、２−２……スラリポンプ、２−３，２−５…
…圧力調整弁、２−６，２−４……バーナ、３−
１……空気圧縮機、３−３……混合器、３−４…
…流量調整弁、３−６……ガス化炉下部管台、３
−５……制御弁。
Fig. 1 is a schematic diagram of a pulverized coal slurry feed air-blown gasifier according to an embodiment of the present invention, Fig. 2 is a schematic diagram of a conventional air compressor dry feed type air-blown gasifier, and Fig. 3 is a schematic diagram of a conventional air-blown gasifier using dry feed. Schematic diagram of a dry feed type oxygen blown gasification apparatus. FIG. 4 shows a schematic diagram of a conventional slurry feed type oxygen blown gasification apparatus. 1-1... Combustor, 1-2... Reductor,
1-3... Heat exchanger, 1-4... Balance port, 2-2... Slurry pump, 2-3, 2-5...
...Pressure regulating valve, 2-6, 2-4...Burner, 3-
1... Air compressor, 3-3... Mixer, 3-4...
...Flow rate adjustment valve, 3-6...Gasifier lower pipe stand, 3
-5...Control valve.
Claims (1)
フイードによつて供給するガス化システムにおい
てガス化炉内へ微粉炭スラリをバーナカツト可能
な複数のスラリバーナを介して供給する微粉炭ス
ラリ供給手段と、圧縮空気を該ガス化炉内へ供給
する空気供給ラインと、該空気供給ラインに酸素
製造プラントより酸素を富化する酸素供給ライン
と、該酸素構造プラントより副性された窒素を該
ガス化炉の二重隔壁部へ供給する窒素供給ライン
とよりなる事を特徴とする微粉炭スラリフイード
空気吹きガス化装置。1. A pulverized coal slurry supply means for supplying pulverized coal slurry into the gasification furnace through a plurality of slurry burners capable of burner cutting in a gasification system that supplies pulverized coal to a double-walled coal gasification furnace using slurry feed; , an air supply line that supplies compressed air into the gasification furnace; an oxygen supply line that enriches oxygen from an oxygen production plant to the air supply line; and an oxygen supply line that enriches the air supply line with oxygen from an oxygen production plant; A pulverized coal slurry feed air-blown gasification device comprising a nitrogen supply line that supplies to the double partition wall of the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10286586A JPS62257985A (en) | 1986-05-02 | 1986-05-02 | Air blow gasification system with pulverized coal slurry feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10286586A JPS62257985A (en) | 1986-05-02 | 1986-05-02 | Air blow gasification system with pulverized coal slurry feed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62257985A JPS62257985A (en) | 1987-11-10 |
| JPH0569158B2 true JPH0569158B2 (en) | 1993-09-30 |
Family
ID=14338803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10286586A Granted JPS62257985A (en) | 1986-05-02 | 1986-05-02 | Air blow gasification system with pulverized coal slurry feed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62257985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996035910A1 (en) * | 1995-05-10 | 1996-11-14 | Kokan Keisoku Kabushiki Kaisha | Apparatus and method for disposing of wastes containing organic compounds |
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|---|---|---|---|---|
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| US9034061B2 (en) | 2012-10-01 | 2015-05-19 | Greatpoint Energy, Inc. | Agglomerated particulate low-rank coal feedstock and uses thereof |
| CN104704089B (en) | 2012-10-01 | 2017-08-15 | 格雷特波因特能源公司 | Graininess low rank coal raw material of agglomeration and application thereof |
| KR101534461B1 (en) | 2012-10-01 | 2015-07-06 | 그레이트포인트 에너지, 인크. | Agglomerated particulate low-rank coal feedstock and uses thereof |
| KR101717863B1 (en) | 2012-10-01 | 2017-03-17 | 그레이트포인트 에너지, 인크. | Use of contaminated low-rank coal for combustion |
| US10464872B1 (en) | 2018-07-31 | 2019-11-05 | Greatpoint Energy, Inc. | Catalytic gasification to produce methanol |
| US10344231B1 (en) | 2018-10-26 | 2019-07-09 | Greatpoint Energy, Inc. | Hydromethanation of a carbonaceous feedstock with improved carbon utilization |
| US10435637B1 (en) | 2018-12-18 | 2019-10-08 | Greatpoint Energy, Inc. | Hydromethanation of a carbonaceous feedstock with improved carbon utilization and power generation |
| US10618818B1 (en) | 2019-03-22 | 2020-04-14 | Sure Champion Investment Limited | Catalytic gasification to produce ammonia and urea |
-
1986
- 1986-05-02 JP JP10286586A patent/JPS62257985A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996035910A1 (en) * | 1995-05-10 | 1996-11-14 | Kokan Keisoku Kabushiki Kaisha | Apparatus and method for disposing of wastes containing organic compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62257985A (en) | 1987-11-10 |
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