JP2002338976A - Apparatus and method for treating waste oil - Google Patents
Apparatus and method for treating waste oilInfo
- Publication number
- JP2002338976A JP2002338976A JP2001144276A JP2001144276A JP2002338976A JP 2002338976 A JP2002338976 A JP 2002338976A JP 2001144276 A JP2001144276 A JP 2001144276A JP 2001144276 A JP2001144276 A JP 2001144276A JP 2002338976 A JP2002338976 A JP 2002338976A
- Authority
- JP
- Japan
- Prior art keywords
- waste oil
- steam
- air
- reforming
- reformed gas
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、廃油処理装置及び
廃油処理方法に関するものであり、より詳細には、廃塗
料等の廃油の廃棄処理プロセスを簡素化し、廃油処理シ
ステムの熱効率及び運転効率を改善する廃油処理装置及
び廃油処理方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste oil treatment apparatus and a waste oil treatment method, and more particularly, to simplifying a waste oil disposal process of waste paints and the like, and improving the thermal efficiency and operation efficiency of the waste oil treatment system. The present invention relates to an improved waste oil treatment apparatus and waste oil treatment method.
【０００２】[0002]
【従来の技術】有機溶剤を含む廃棄物、例えば、塗料製
造工場又は塗装工場の廃塗料、自動車工場のブレーキオ
イル廃油、油分を比較的多量に含有した食品工場又は石
油化学工場の各種廃液、各種設備機器の洗浄用有機溶剤
等は、有機溶剤を含む液状又はスラリー状の廃油とし
て、所定の産業廃棄物処理基準に従って廃棄処分され
る。例えば、塗料製造工程から排出される廃塗料は、常
圧下で溶剤の一部を回収した後に焼却処分されたり、揮
発性溶剤を気化して固形分を分離した後、固形分を埋立
処分等により廃棄するなどの方法で廃棄処分されてき
た。2. Description of the Related Art Wastes containing organic solvents, such as waste paints from paint manufacturing plants or paint plants, brake oil waste oil from automobile plants, various waste liquids from food plants or petrochemical plants containing a relatively large amount of oil, Organic solvents for cleaning equipment and the like are disposed of as liquid or slurry waste oil containing an organic solvent in accordance with a predetermined industrial waste treatment standard. For example, waste paint discharged from the paint manufacturing process is incinerated after collecting a part of the solvent under normal pressure, or after the volatile solvent is vaporized to separate the solid content, the solid content is disposed of by landfill disposal, etc. It has been disposed of by disposal.
【０００３】殊に、近年の塗料業界では、有機溶剤を含
む廃塗料の廃棄処分に関し、廃棄処理方法の適否が、環
境保護の観点より重要課題の一つとして認識されてい
る。このような認識を示すものとして、例えば、特開２
０００−１５８０００号等に開示された廃棄処理装置が
挙げられる。この方式の廃棄処理装置は、廃塗料を調整
する調整槽、調整後の廃塗料を減圧加熱して固液分離す
る分離装置、分離した固形物を回収する回収槽、更に
は、分離後の溶剤を液化回収する凝縮装置等を備える。
各機器又は装置は、塗料製造工程から排出される廃塗料
を効果的に固形分及び溶剤に分離する廃棄処理システム
を構成し、回収槽の固形物は、埋立処分可能な減容廃棄
物として廃棄処分され、回収した溶剤は、再生溶剤又は
塗料原料等として所望の用途に再利用される。[0003] In particular, in the paint industry in recent years, regarding the disposal of waste paint containing an organic solvent, the suitability of a disposal method is recognized as one of the important issues from the viewpoint of environmental protection. For example, Japanese Patent Application Laid-Open No.
No. 000-158000 and the like. This type of waste treatment apparatus includes an adjustment tank for adjusting the waste paint, a separation apparatus for heating and heating the adjusted waste paint under reduced pressure to perform solid-liquid separation, a collection tank for collecting separated solids, and a solvent after the separation. And a condensing device for liquefying and recovering.
Each equipment or device constitutes a waste treatment system that effectively separates waste paint discharged from the paint production process into solids and solvents, and the solids in the collection tank are disposed of as volume-reduced waste that can be landfilled. The solvent that has been disposed and recovered is reused for a desired use as a regenerated solvent or a raw material for a paint.
【０００４】[0004]
【発明が解決しようとする課題】本発明者等は、このよ
うな廃棄処理装置により回収した溶剤分離後の固形分を
無酸素又は低酸素状態の高温還元性雰囲気において熱分
解し、熱分解反応により生成した熱分解ガスを内燃機関
等の燃料ガスとして利用する研究を行ってきた。本発明
者等の研究によれば、熱分解ガスを主燃料又は補助燃料
として内燃機関を作動し、内燃機関の動力により発電機
を作動し、これにより、廃油を焼却処分するとともに、
廃油が保有する熱エネルギーを電気エネルギーとして有
効利用することが可能となる。SUMMARY OF THE INVENTION The present inventors thermally decompose the solvent-separated solid recovered by such a waste treatment apparatus in a high-temperature reducing atmosphere in an oxygen-free or low-oxygen state, and carry out a thermal decomposition reaction. Research has been conducted to utilize the pyrolysis gas generated by the method as a fuel gas for internal combustion engines. According to the study of the present inventors, the internal combustion engine is operated using the pyrolysis gas as a main fuel or an auxiliary fuel, the generator is operated by the power of the internal combustion engine, thereby incinerating waste oil,
The thermal energy held by the waste oil can be effectively used as electric energy.
【０００５】しかしながら、この形式の廃油発電システ
ムは、廃油の固液分離装置及び減圧装置を必要とすると
ともに、溶剤分離後の固形成分を熱分解する熱分解炉を
要するので、システム構成が複雑化するばかりでなく、
システム全体の熱効率及び運転効率を良好な状態に維持
する上で、複雑な電子制御装置や、精密な固形分搬送装
置及び溶剤回収装置等を設置せざるを得ず、かなり高額
な設備費又は建設費が要求される。このため、廃油処理
プロセスを大幅に簡略化し、システム構成を更に改良す
べき要請が生じた。[0005] However, this type of waste oil power generation system requires a waste oil solid-liquid separator and a decompression device, and requires a pyrolysis furnace for thermally decomposing solid components after solvent separation. Not only do
In order to maintain good thermal efficiency and operating efficiency of the entire system, complicated electronic control units, precise solid content transfer units, solvent recovery units, etc. must be installed. Expenses are required. For this reason, a demand has arisen for greatly simplifying the waste oil treatment process and further improving the system configuration.
【０００６】本発明は、かかる事情に鑑みてなされたも
のであり、その目的とするところは、廃塗料等の廃油の
廃棄処理プロセスを簡素化し、廃油処理システムの熱効
率及び運転効率を改善することができる廃油処理装置及
び廃油処理方法を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to simplify a process for disposing of waste oil such as waste paint and improve the thermal efficiency and operation efficiency of a waste oil treatment system. It is an object of the present invention to provide a waste oil treatment device and a waste oil treatment method that can perform the above-mentioned steps.
【０００７】本発明は又、廃油を直に装入することによ
り、比較的多量の炭化水素、一酸化炭素及び水素を含む
改質ガスを生成する廃油処理装置の改質炉を提供するこ
とを目的とする。Another object of the present invention is to provide a reforming furnace of a waste oil treatment apparatus for producing a reformed gas containing a relatively large amount of hydrocarbons, carbon monoxide and hydrogen by directly charging waste oil. Aim.
【０００８】[0008]
【課題を解決するための手段及び作用】本発明は、上記
目的を達成すべく、廃油を廃棄処分する廃油処理装置に
おいて、廃油を導入可能な改質炉と、該改質炉に高温の
水蒸気及び空気を供給する水蒸気・空気加熱装置と、改
質炉に生成した改質ガスを冷却する冷却手段とを有し、
前記水蒸気・空気加熱装置は、水蒸気及び空気を５００
℃以上の高温に加熱して前記改質炉に供給し、前記改質
炉は、前記廃油を炉内領域に噴霧する噴霧手段と、該炉
内領域に高温の水蒸気及び空気を導入する水蒸気・空気
導入手段とを備え、前記高温水蒸気及び空気による前記
廃油の液滴の熱分解反応及び水蒸気改質反応により、前
記炉内領域に改質ガスを生成することを特徴とする廃油
処理装置を提供する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a waste oil treatment apparatus for disposing of waste oil, comprising: a reforming furnace capable of introducing waste oil; And a steam / air heating device for supplying air, and cooling means for cooling reformed gas generated in the reforming furnace,
The steam / air heating device converts steam and air to 500
C. and heated to a high temperature of at least C. and supplied to the reforming furnace. The reforming furnace is provided with a spraying device for spraying the waste oil into a furnace region, and a steam / gas for introducing high-temperature steam and air into the furnace region. A waste oil treatment device comprising: an air introduction unit, wherein a reformed gas is generated in the furnace area by a thermal decomposition reaction and a steam reforming reaction of the waste oil droplets by the high-temperature steam and air. I do.
【０００９】本発明は又、廃油を廃棄処分する廃油処理
方法において、廃油を改質炉の単一の改質領域に噴霧し
て廃油の液滴を改質領域に分散し、空気及び水蒸気を５
００℃以上の高温に加熱して前記改質領域に導入して、
廃油の液滴を熱分解するとともに、熱分解した廃油の成
分を高温水蒸気により改質し、比較的多量の炭化水素、
一酸化炭素及び水素を含有する改質ガスを生成すること
を特徴とする廃油処理方法を提供する。The present invention also provides a waste oil treatment method for disposing of waste oil, wherein the waste oil is sprayed onto a single reforming region of a reforming furnace to disperse droplets of the waste oil into the reforming region, and to remove air and steam. 5
Heated to a high temperature of 00 ° C. or more and introduced into the reforming region,
The thermal decomposition of the waste oil droplets and the reformation of the components of the thermally decomposed waste oil with high-temperature steam provide a relatively large amount of hydrocarbons,
A waste oil treatment method characterized by generating a reformed gas containing carbon monoxide and hydrogen.
【００１０】上記構成の廃油処理装置及び廃油処理方法
によれば、廃塗料等の廃油は、改質炉の改質領域に直に
噴霧され、改質領域において熱分解し且つ改質する。改
質炉の炉内領域では、廃油の熱分解反応及び改質反応が
同時進行し、比較的多量の炭化水素、一酸化炭素及び水
素を含有する改質ガス（高温粗ガス）が改質炉内に生成
する。このような構成によれば、廃油は、固液分離又は
溶剤分離等の工程を経ることなく、直に改質炉に導入さ
れ、改質炉内で熱分解し且つ改質し、改質炉内に生成し
た改質ガスは、空気及び水蒸気を加熱する熱源及び発電
設備等に燃料ガスとして供給される。従って、従来の廃
油前処理工程、即ち、固液分離工程又は溶剤分離工程等
を省略することができるので、廃油の廃棄処理プロセス
は大幅に簡素化し、廃油処理システムの熱効率及び運転
効率は大きく改善する。[0010] According to the waste oil treatment apparatus and the waste oil treatment method having the above-described structures, waste oil such as waste paint is directly sprayed into the reforming zone of the reforming furnace, and is thermally decomposed and reformed in the reforming zone. In the in-furnace area of the reforming furnace, the thermal decomposition reaction and the reforming reaction of the waste oil proceed simultaneously, and a reforming gas (a high-temperature crude gas) containing a relatively large amount of hydrocarbons, carbon monoxide and hydrogen is produced. Generate within. According to such a configuration, the waste oil is directly introduced into the reforming furnace without undergoing a process such as solid-liquid separation or solvent separation, and is thermally decomposed and reformed in the reforming furnace. The reformed gas generated therein is supplied as a fuel gas to a heat source for heating air and steam, a power generation facility, and the like. Therefore, the conventional waste oil pretreatment step, that is, the solid-liquid separation step or the solvent separation step can be omitted, so that the waste oil disposal treatment process is greatly simplified, and the thermal efficiency and operation efficiency of the waste oil treatment system are greatly improved. I do.
【００１１】他の観点より、本発明は、廃油の液滴を高
温の空気及び水蒸気と混合する改質領域と、改質領域に
対して廃油の液滴を噴霧する噴霧手段と、高温の空気及
び水蒸気を改質領域に導入する空気・水蒸気導入口と、
改質領域に生成した改質ガスを炉外に導出する改質ガス
導出路と、前記改質領域及び改質ガス導出路の間に配置
された耐熱材料の通気性遮熱壁とを備えたことを特徴と
する廃油処理装置の改質炉を提供する。In another aspect, the present invention provides a reforming region for mixing waste oil droplets with high-temperature air and steam, a spraying means for spraying waste oil droplets onto the reforming region, and a high-temperature air. And an air / steam inlet for introducing steam and steam into the reforming region;
It is provided with a reformed gas outlet path for guiding the reformed gas generated in the reforming region to the outside of the furnace, and a gas-permeable heat shield wall of a heat-resistant material disposed between the reforming region and the reformed gas outlet path. A reforming furnace for a waste oil treatment device is provided.
【００１２】改質炉の改質領域には、前述の如く、高温
の水蒸気及び空気が導入される。通気性遮熱壁は、改質
領域と改質ガス導出路とを通気可能に分離する。遮熱壁
は、改質領域の熱が改質ガス導出路に放熱するのを防止
し、改質領域を断熱する断熱隔壁として機能するととも
に、改質領域に導入された廃油液滴、水蒸気及び空気を
効果的に混合し、水蒸気改質反応を促進して、その反応
時間を短縮する。同時に、遮熱壁は、廃油中の固形分
や、タール状成分の凝縮液等を捕獲し、改質ガスを浄化
する浄化手段として機能する。As described above, high-temperature steam and air are introduced into the reforming zone of the reforming furnace. The air-permeable heat shield wall permeablely separates the reforming region and the reformed gas outlet passage. The heat shield wall prevents the heat of the reforming region from radiating to the reformed gas outlet path, functions as a heat insulating partition wall that insulates the reforming region, and waste oil droplets, steam, and the like introduced into the reforming region. The air is mixed effectively, promoting the steam reforming reaction and shortening the reaction time. At the same time, the heat shield wall functions as a purifying means for trapping the solid content in the waste oil, the condensate of the tar-like component, and the like, and purifying the reformed gas.
【００１３】[0013]
【発明の実施の形態】本発明の好適な実施形態によれ
ば、改質ガスの冷却工程及び浄化工程が、改質炉の改質
工程に後続し、改質ガスは、比較的良質の燃料ガスに精
製され、燃焼用燃料として水蒸気・空気加熱装置及び発
電装置に供給される。好ましくは、廃油処理装置は、冷
却工程を実施する廃ガスボイラー、空気予熱器及び冷却
器等を備える。廃ガスボイラーは、改質ガスの放熱によ
り通常温度（１００℃程度）の水蒸気を生成し、空気予
熱器は、改質ガスとの熱交換により外界雰囲気の常温空
気を５００℃程度の温度に予熱し、冷却器は、改質ガス
を１００℃以下の温度に冷却し、改質ガスが保有する顕
熱により給水を温水に加熱する。廃ガスボイラーの水蒸
気は、水蒸気・空気加熱装置に供給され、空気予熱器の
予熱空気は、比較的高温の燃焼用空気として水蒸気・空
気加熱装置の燃焼器又は燃焼域に供給され、冷却器の温
水は、系外の暖房設備等に供給される。According to a preferred embodiment of the present invention, a reforming gas cooling step and a purification step follow a reforming step of a reforming furnace, and the reformed gas is a relatively high quality fuel. It is purified into gas and supplied to steam / air heaters and power generators as fuel for combustion. Preferably, the waste oil treatment device includes a waste gas boiler that performs a cooling step, an air preheater, a cooler, and the like. The waste gas boiler generates steam at a normal temperature (about 100 ° C.) by radiating the reformed gas, and the air preheater preheats room temperature air in the external atmosphere to a temperature of about 500 ° C. by heat exchange with the reformed gas. Then, the cooler cools the reformed gas to a temperature of 100 ° C. or lower, and heats the feed water to hot water by the sensible heat of the reformed gas. The steam from the waste gas boiler is supplied to the steam / air heating device, and the preheated air from the air preheater is supplied to the combustor or the combustion zone of the steam / air heating device as relatively high-temperature combustion air, and The hot water is supplied to a heating facility or the like outside the system.
【００１４】好ましくは、精製後の改質ガスは、水蒸気
・空気加熱装置の燃焼器又は燃焼域に供給され、上記予
熱空気により燃焼する。水蒸気・空気加熱装置は、燃焼
器又は燃焼域の燃焼熱により常温の空気及び水蒸気を５
００℃以上、好ましくは、８００〜１０００℃の温度、
更に好ましくは、１０００℃以上の温度に加熱する。[0014] Preferably, the purified gas after purification is supplied to a combustor or a combustion zone of a steam / air heating device, and is burned by the preheated air. The steam / air heating device converts air and steam at room temperature into 5
00 ° C or higher, preferably a temperature of 800 to 1000 ° C,
More preferably, it is heated to a temperature of 1000 ° C. or higher.
【００１５】水蒸気及び空気は、水蒸気・空気加熱装置
によって加熱した後に混合され、或いは、混合後に水蒸
気・空気加熱装置によって加熱される。所望により、廃
油処理装置は、空気及び水蒸気の混合比を制御する混合
制御装置を備え、空気及び水蒸気は、混合制御装置の制
御下に混合し、適切な重量比の水蒸気を含有する混合気
として改質域に供給される。混合気中の空気は、改質領
域の炭化水素と発熱反応し、混合気中の水蒸気と炭化水
素との吸熱改質反応に要する反応熱を補う。混合気が過
分の空気を含む場合、改質ガス中の有用な燃料成分（一
酸化炭素及び水素）が空気と反応して比較的多量に損失
する結果を招くことから、混合気中の空気量は、望まし
くは、水蒸気改質反応に要する反応熱を補給する上で必
要な最小限の空気量に制限することが望ましい。例え
ば、空気及び水蒸気の混合比（重量比）は、２：８〜
７：３の範囲内において、適切な値に制御される。The steam and the air are mixed by being heated by the steam / air heating device, or are heated by the steam / air heating device after the mixing. Optionally, the waste oil treatment device includes a mixing control device for controlling a mixing ratio of air and steam, and the air and the steam are mixed under the control of the mixing control device to form an air-fuel mixture containing an appropriate weight ratio of steam. It is supplied to the reforming zone. The air in the air-fuel mixture reacts exothermically with the hydrocarbons in the reforming region, and supplements the reaction heat required for the endothermic reforming reaction between the steam in the air-fuel mixture and the hydrocarbons. If the air-fuel mixture contains excess air, the useful fuel components (carbon monoxide and hydrogen) in the reformed gas will react with the air, resulting in a relatively large amount of loss. Is desirably limited to the minimum amount of air necessary to supply the reaction heat required for the steam reforming reaction. For example, the mixing ratio (weight ratio) of air and steam is 2: 8 to
It is controlled to an appropriate value within the range of 7: 3.
【００１６】本発明の更に好適な実施形態では、廃油処
理装置は、粗燃料ガスを精製する精製装置として、脱塵
装置を備える。所望により、脱硫装置、脱塩装置、脱硝
装置等を廃油の種類に応じて廃油処理装置の改質ガス給
送路に介装しても良い。精製後の燃料ガスは、例えば、
発電設備の内燃機関に主燃料又は補助燃料として供給さ
れ、内燃機関の動力により発電機を駆動し、発電機は、
系外の機器又は設備に電力を供給する。例えば、本発明
の廃油処理装置にガスタービン発電機又はディーゼルエ
ンジン発電機等の発電装置を組合せることにより、廃油
を燃料とした複合発電システムや、比較的小型のコジェ
ネレーションシステムを形成することが可能となる。In a further preferred embodiment of the present invention, the waste oil treatment device includes a dust removal device as a purification device for purifying the crude fuel gas. If desired, a desulfurization device, a desalination device, a denitration device, or the like may be interposed in the reformed gas supply path of the waste oil treatment device according to the type of waste oil. The fuel gas after purification is, for example,
It is supplied to the internal combustion engine of the power generation facility as main fuel or auxiliary fuel, and drives the generator by the power of the internal combustion engine.
Supply power to equipment or facilities outside the system. For example, by combining the waste oil treatment device of the present invention with a power generation device such as a gas turbine generator or a diesel engine generator, a combined power generation system using waste oil as a fuel or a relatively small cogeneration system can be formed. It becomes possible.
【００１７】本発明の好ましい実施形態において、改質
炉を構成する通気性遮熱壁は、改質ガスが通過可能な多
数の狭小間隙を備えた球形耐熱材料の積層体からなる。
球形耐熱材料として、アルミナセラミックスボール等の
球形セラミックスを好ましく使用し得る。球形耐熱材料
の直径（外径）は、５mm〜２００mm、好ましくは、２０
mm〜１００mmの範囲内に設定される。耐熱材料の断面形
状は、必ずしも真円形でなくとも良く、楕円形又は偏平
した球形等の形態に設計しても良い。高温空気の温度を
５００℃以下の温度に設定し得る場合、ステンレス製金
属球を上記球形耐熱材料として使用することも可能であ
る。In a preferred embodiment of the present invention, the gas permeable heat insulating wall constituting the reforming furnace is made of a laminated body of a spherical heat-resistant material having a large number of narrow gaps through which the reformed gas can pass.
Spherical ceramics such as alumina ceramic balls can be preferably used as the spherical heat-resistant material. The diameter (outer diameter) of the spherical heat-resistant material is 5 mm to 200 mm, preferably 20 mm.
It is set in the range of mm to 100 mm. The cross-sectional shape of the heat-resistant material does not necessarily have to be a true circle, but may be designed to be an elliptical shape or a flat spherical shape. When the temperature of the high-temperature air can be set to a temperature of 500 ° C. or less, a stainless steel metal ball can be used as the spherical heat-resistant material.
【００１８】図１は、本発明の好適な実施形態に係る廃
油処理装置のシステム・フロー図である。図１に示す廃
油処理装置には、塗料製造設備から排出される液状又は
スラリー状の廃塗料が、廃油として供給される。FIG. 1 is a system flow diagram of a waste oil treatment apparatus according to a preferred embodiment of the present invention. Liquid waste or slurry waste paint discharged from a paint manufacturing facility is supplied to the waste oil treatment apparatus shown in FIG. 1 as waste oil.
【００１９】廃油処理装置は、廃油を熱分解し且つ改質
する改質炉、改質ガスを冷却する廃ガスボイラー、燃焼
用空気を予熱する空気予熱器、改質ガスを浄化する除塵
装置、改質ガスを冷却する冷却器、冷却・浄化後の改質
ガス（低カロリーガス）を燃焼する燃焼器、更には、高
温空気及び水蒸気の高温混合気を改質炉に供給する水蒸
気・空気加熱器を備える。水蒸気・空気加熱器は、燃焼
器の燃焼熱により空気及び水蒸気を高温に加熱する。燃
焼器及び加熱器は、水蒸気・空気加熱装置を構成する。The waste oil treatment device includes a reforming furnace for thermally decomposing and reforming waste oil, a waste gas boiler for cooling reformed gas, an air preheater for preheating combustion air, a dust removing device for purifying reformed gas, A cooler for cooling reformed gas, a combustor for burning reformed gas (low calorie gas) after cooling and purification, and steam / air heating for supplying a high-temperature mixture of high-temperature air and steam to the reforming furnace Equipped with a vessel. The steam / air heater heats air and steam to a high temperature by the combustion heat of the combustor. The combustor and the heater constitute a steam / air heating device.
【００２０】廃油供給路ＷＴ及び高温混合気供給路ＭＧ
が改質炉に接続され、塗料製造工程で製造ラインから排
出された廃塗料が、廃油供給路ＷＴを介して改質炉に装
入される。有機溶剤、水、樹脂及び顔料等を含有する廃
塗料が、廃油供給路ＷＴの下流端から改質炉内に噴霧さ
れる。高温混合気供給路ＭＧから改質炉内に導入された
高温混合気が、廃塗料の液滴と接触し、液滴を急速に加
熱する。Waste oil supply path WT and high temperature mixture supply path MG
Is connected to the reforming furnace, and the waste paint discharged from the production line in the paint manufacturing process is charged into the reforming furnace via the waste oil supply path WT. A waste paint containing an organic solvent, water, a resin, a pigment, and the like is sprayed into the reforming furnace from the downstream end of the waste oil supply path WT. The high-temperature air-fuel mixture introduced from the high-temperature air-fuel mixture supply path MG into the reforming furnace contacts the droplets of the waste paint, and rapidly heats the droplets.
【００２１】高温混合気は、少なくとも５００℃、好ま
しくは、８００℃以上、更に好ましくは、１０００℃以
上の温度を有し、高温混合気が連続的に供給される改質
炉の炉内雰囲気は、高温に維持される。改質炉内に噴霧
された廃塗料は、改質炉内で気化し、熱分解し、同時
に、熱分解ガス中の炭化水素と水蒸気及び空気との反応
が進行する。The high temperature air-fuel mixture has a temperature of at least 500 ° C., preferably 800 ° C. or more, more preferably 1000 ° C. or more. Maintained at high temperatures. The waste paint sprayed into the reforming furnace is vaporized and thermally decomposed in the reforming furnace, and at the same time, the reaction of hydrocarbons in the pyrolysis gas with steam and air proceeds.
【００２２】炭化水素及び水蒸気の反応は、一般に下式
(1) で示される吸熱反応であり、炭化水素及び空気の反
応は、一般に下式(2) で示される発熱反応である。The reaction between hydrocarbon and steam is generally represented by the following formula:
This is an endothermic reaction represented by (1), and the reaction between hydrocarbon and air is generally an exothermic reaction represented by the following formula (2).
【００２３】 ＣｘＨｘ＋Ｈ2 Ｏ→ＣＯ ＋Ｈ2 ＋Ｈ2 Ｏ・・・・(1) ＣｘＨｘ＋Ｏ2 ＋Ｎ2 →ＣＯ ＋ＣＯ2 ＋Ｈ2 ＋Ｈ2 Ｏ＋Ｎ2 ・・・・(2) [0023] CxHx + H 2 O → CO + H 2 + H 2 O ···· (1) CxHx + O 2 + N 2 → CO + CO 2 + H 2 + H 2 O + N 2 ···· (2)
【００２４】水蒸気は、廃塗料の熱分解によりガス化し
た炭化水素を改質し、改質ガス（高温粗ガス）を炉内に
生成する。改質ガスは、メタン又はエタン等の炭化水素
を含み、比較的多量の一酸化炭素及び水素を含有する。
炭化水素及び空気の発熱反応によって発生した熱は、炭
化水素及び水蒸気の吸熱改質反応に要する熱として消費
される。The steam reforms the hydrocarbon gasified by the thermal decomposition of the waste paint, and generates a reformed gas (high-temperature crude gas) in the furnace. The reformed gas contains hydrocarbons such as methane or ethane, and contains relatively large amounts of carbon monoxide and hydrogen.
The heat generated by the exothermic reaction of hydrocarbons and air is consumed as the heat required for the endothermic reforming reaction of hydrocarbons and steam.
【００２５】改質ガスは、高温粗ガスとして改質ガス給
送路ＲＧ１に送出され、廃棄ガスボイラーに供給され
る。廃ガスボイラー内の熱交換器には、給水ラインＳＷ
１が接続され、改質ガスは、給水を加熱する。廃ガスボ
イラーで生成した比較的低温（１００℃程度）の水蒸気
は、水蒸気供給路ＬＳ１に送出される。給水との熱交換
により温度降下した改質ガスは、改質ガス給送路ＲＧ２
を介して中温粗ガスとして空気予熱器に供給される。The reformed gas is sent out as a high-temperature crude gas to a reformed gas supply line RG1 and supplied to a waste gas boiler. The heat exchanger in the waste gas boiler has a water supply line SW
1 is connected and the reformed gas heats the feedwater. The relatively low temperature (about 100 ° C.) steam generated by the waste gas boiler is sent to the steam supply path LS1. The reformed gas whose temperature has dropped due to the heat exchange with the feedwater is supplied to the reformed gas feed line RG2.
And supplied to the air preheater as a medium temperature crude gas.
【００２６】大気温度の外界空気が、空気供給ラインＳ
Ａ１を介して空気予熱器に供給され、改質ガスにより予
熱される。空気予熱器は、レキュペレータ型又はユング
ストローム型の熱交換器からなり、常温空気は、改質ガ
スの顕熱を受熱し、４００℃以上、好ましくは、５００
℃以上の高温に予熱された燃焼用空気として、予熱空気
供給路ＨＡから水蒸気・空気加熱装置の燃焼器に供給さ
れる。The outside air at the atmospheric temperature is supplied to the air supply line S
It is supplied to the air preheater via A1 and is preheated by the reformed gas. The air preheater is a heat exchanger of a recuperator type or a Jungstrom type, and the room temperature air receives the sensible heat of the reformed gas and is 400 ° C. or more, preferably 500 ° C. or more.
As combustion air preheated to a high temperature of not less than ° C., it is supplied from a preheated air supply passage HA to a combustor of a steam / air heating device.
【００２７】常温空気との熱交換により更に温度降下し
た改質ガスは、低温粗ガスとして改質ガス給送路ＲＧ３
から除塵装置に供給される。除塵装置は、バグフィルタ
ー又はセラミックフィルター等の浄化手段を内蔵してお
り、改質ガス中の粉塵、重金属等を捕捉し、微小な不純
固形分を改質ガスから除去する。所望により、ガススク
ラバー、脱硫装置、脱塩装置、脱硝装置等（図示せず）
のガス浄化装置を改質ガス給送路ＲＧに付加的に介装し
ても良い。The reformed gas whose temperature has been further lowered by heat exchange with the normal temperature air is converted to a reformed gas supply passage RG3 as a low-temperature crude gas.
Is supplied to the dust remover. The dust removing device has a built-in purifying means such as a bag filter or a ceramic filter, captures dust, heavy metals, and the like in the reformed gas, and removes minute impurity solids from the reformed gas. Gas scrubber, desulfurization device, desalination device, denitration device, etc. (not shown) if desired
May be additionally provided in the reformed gas supply path RG.
【００２８】除塵装置を通過した改質ガスは、浄化ガス
として改質ガス給送路ＲＧ４から冷却器に供給される。
冷却器は、例えば、フィンチューブ型の気−液熱交換器
を内蔵する。給水ラインＳＷ２が熱交換器の上流端に接
続され、温水供給路ＨＷが、熱交換器の下流端に接続さ
れる。給水は、改質ガスとの熱交換により加熱され、温
水として系外の設備、例えば、暖房設備等に供給され、
他方、改質ガスは、給水との熱交換により温度降下し、
１００℃以下の常温低カロリーガスとして、燃料ガス供
給路ＦＧに送出される。The reformed gas that has passed through the dust removing device is supplied as a purified gas from a reformed gas supply line RG4 to a cooler.
The cooler incorporates, for example, a fin tube type gas-liquid heat exchanger. The water supply line SW2 is connected to the upstream end of the heat exchanger, and the hot water supply path HW is connected to the downstream end of the heat exchanger. The feedwater is heated by heat exchange with the reformed gas, and is supplied as hot water to equipment outside the system, for example, a heating equipment,
On the other hand, the temperature of the reformed gas drops due to heat exchange with the feedwater,
The low-calorie gas at normal temperature of 100 ° C. or lower is sent to the fuel gas supply path FG.
【００２９】燃料ガス供給路ＦＧは、第１及び第２供給
路ＦＧ１：ＦＧ２に分岐する。第１供給路ＦＧ１は、ガ
スタービン発電機等の小型発電機を備えた発電設備に接
続され、第２供給路ＦＧ２は、燃焼器に接続される。第
１供給路ＦＧ１の低カロリーガスは、ガスタービンの内
燃機関に対して主燃料又は補助燃料として供給され、内
燃機関において燃焼する。内燃機関の動力により回転す
る発電機は、電力を系内の各機器又は系外の受電設備に
供給する。低カロリーガスの残部は、第２供給路ＦＧ２
から燃焼器に供給される。空気予熱器の高温予熱空気が
予熱空気供給路ＨＡから燃焼器に供給され、低カロリー
ガスは、高温予熱空気により燃焼し、この結果、高温の
燃焼ガスが燃焼器内に生成する。９００℃〜１１００℃
の燃焼ガスは、燃焼ガス給送路ＨＧを介して加熱器に供
給される。The fuel gas supply path FG branches into first and second supply paths FG1: FG2. The first supply path FG1 is connected to a power generation facility including a small generator such as a gas turbine generator, and the second supply path FG2 is connected to a combustor. The low-calorie gas in the first supply passage FG1 is supplied to the internal combustion engine of the gas turbine as main fuel or auxiliary fuel, and burns in the internal combustion engine. The generator, which is rotated by the power of the internal combustion engine, supplies power to each device in the system or power receiving equipment outside the system. The remainder of the low-calorie gas is supplied to the second supply path FG2.
Is supplied to the combustor. The high-temperature preheat air of the air preheater is supplied to the combustor from the preheat air supply passage HA, and the low-calorie gas is burned by the high-temperature preheat air. As a result, high-temperature combustion gas is generated in the combustor. 900 ° C to 1100 ° C
Is supplied to the heater through the combustion gas supply path HG.
【００３０】加熱器は、レキュペレータ型の熱交換部を
備え、熱交換部を構成するフィンチューブの上流端に
は、低温混合気供給路ＬＧが接続される。低温混合気供
給路ＬＧは、水蒸気供給路ＬＳ１及び空気供給ラインＳ
Ａ２に接続される。水蒸気供給路ＬＳ１から供給された
低温水蒸気は、空気供給ラインＳＡ２から供給される大
気温度の空気と混合し、比較的低温の混合気として低温
混合気供給路ＬＧから加熱器内の熱交換部に導入され
る。The heater has a recuperator-type heat exchange section, and a low-temperature mixture supply path LG is connected to an upstream end of a fin tube constituting the heat exchange section. The low-temperature air-fuel mixture supply path LG is provided with a steam supply path LS1 and an air supply line S.
A2. The low-temperature steam supplied from the steam supply path LS1 is mixed with air at the atmospheric temperature supplied from the air supply line SA2, and is supplied as a relatively low-temperature mixture from the low-temperature mixture supply path LG to the heat exchanger in the heater. be introduced.
【００３１】加熱器に供給された高温燃焼ガスは、熱交
換部のフィンチューブ内を流通する混合気と熱交換して
温度降下した後、比較的低温の排ガスとして排気流路Ｅ
Ｇから系外に排気される。高温燃焼ガスの顕熱を受熱し
た混合気は、５００℃以上、好ましくは、８００〜１０
００℃の高温混合気として高温混合気供給路ＭＧから改
質炉に供給される。The high-temperature combustion gas supplied to the heater exchanges heat with the air-fuel mixture flowing through the fin tubes in the heat exchange section, and the temperature thereof drops.
G exhausts out of the system. The mixture having received the sensible heat of the high-temperature combustion gas is 500 ° C. or more, preferably 800 to 10 ° C.
The mixture is supplied to the reforming furnace from the high-temperature mixture supply passage MG as a high-temperature mixture of 00 ° C.
【００３２】[0032]
【実施例】以下、図２を参照して、本発明に係る廃油処
理装置を構成する改質炉の実施例について詳細に説明す
る。図２は、改質炉の構造を示す縦断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a reforming furnace constituting a waste oil treatment apparatus according to the present invention will be described in detail below with reference to FIG. FIG. 2 is a longitudinal sectional view showing the structure of the reforming furnace.
【００３３】上記廃油処理装置の全体システムは、上記
の如く、改質炉、廃ガスボイラー、空気予熱器、除塵装
置、冷却器、燃焼器、水蒸気・空気加熱器及び発電設備
より構成される。廃油処理装置を構成する改質炉を除く
各装置又は機器は、公知の装置構造を適用し得るので、
更なる説明は省略し、以下、改質炉の構造について詳細
に説明する。As described above, the entire system of the waste oil treatment apparatus includes a reforming furnace, a waste gas boiler, an air preheater, a dust remover, a cooler, a combustor, a steam / air heater, and a power generation facility. Since each device or equipment other than the reforming furnace constituting the waste oil treatment device can apply a known device structure,
Further description is omitted, and the structure of the reforming furnace will be described in detail below.
【００３４】改質炉１は、縦型反応容器を構成する改質
容器部分１０と、改質ガスを改質ガス給送路ＲＧ１に導
出する改質ガス流動部分５０とから構成される。改質容
器部分１０の頂壁１１には、廃油導入口１２が形成さ
れ、壁体１３の上部には、混合気導入口１４が形成され
る。The reforming furnace 1 includes a reforming vessel portion 10 constituting a vertical reaction vessel, and a reformed gas flowing portion 50 for guiding the reformed gas to a reformed gas supply passage RG1. A waste oil inlet 12 is formed on the top wall 11 of the reforming vessel portion 10, and a mixture inlet 14 is formed on an upper portion of the wall 13.
【００３５】廃油導入口１２は、液状又はスラリー状の
廃油を噴霧する噴霧器を備え、導入口１２が噴霧した廃
油は、微小な液滴（ドロップレット）として改質域１５
内に拡散する。混合気導入口１４は、水蒸気及び空気の
高温混合気を改質域１５内に導入し、廃油の液滴は、高
温混合気に混合し、熱分解する。The waste oil inlet 12 is provided with a sprayer for spraying liquid or slurry waste oil, and the waste oil sprayed by the inlet 12 is converted into fine droplets (droplets) in the reforming zone 15.
Spreads in. The mixture inlet 14 introduces a high-temperature mixture of steam and air into the reforming zone 15, and the droplets of the waste oil are mixed with the high-temperature mixture and thermally decomposed.
【００３６】改質域１５の内壁面を形成する壁体１３に
は、ネット又はバー材等の支持体２１（仮想線で示す）
が張設又は架設される。多数の球形セラミックス２２が
支持体２１上の炉内領域に充填され、球形セラミックス
２２の積層体からなる複数層構造の通気性遮熱壁２０
が、支持体２１上に形成される。頂壁１１の下面、壁体
１３の内壁面および遮熱壁２０の上面により、改質域１
５が改質炉１０内に画成される。A support 21 (indicated by a phantom line) such as a net or a bar material is provided on the wall 13 forming the inner wall surface of the reforming area 15.
Is stretched or erected. A large number of spherical ceramics 22 are filled in the furnace area on the support body 21, and the air-permeable heat shielding wall 20 having a multilayer structure composed of a laminated body of the spherical ceramics 22.
Are formed on the support 21. By the lower surface of the top wall 11, the inner wall surface of the wall body 13, and the upper surface of the heat shield wall 20, the reforming zone 1
5 is defined in the reforming furnace 10.
【００３７】改質ガス流動部分５０の横型流路５１が、
通気性遮熱壁２０の下側に延在し、遮熱壁２０の下流側
端面（本例では下側面）が、流路５１に面する。流路５
１は、縦型流路５２と連続し、かくして、改質域１５及
び流路５１、５２は、遮熱壁２０を介して相互連通す
る。流路５１、５２は、改質域１５及び遮熱壁２０にお
いて改質した高温ガスの高温滞留時間を確保し、これに
より、改質反応を更に促す空間として機能するととも
に、６４０℃以上、更に好ましくは、７４０℃以上の高
温且つ低酸素濃度の雰囲気を維持し、ダイオキシン前駆
物質又はダイオキシン類を分解する領域として働く。The horizontal flow path 51 of the reformed gas flowing portion 50 is
The downstream end face (lower side face in this example) of the heat shield wall 20 extends below the gas permeable heat shield wall 20 and faces the flow path 51. Channel 5
1 is continuous with the vertical flow path 52, and thus the reforming zone 15 and the flow paths 51 and 52 communicate with each other via the heat shield wall 20. The channels 51 and 52 secure a high-temperature residence time of the high-temperature gas reformed in the reforming region 15 and the heat shield wall 20, thereby functioning as a space for further promoting the reforming reaction, and at 640 ° C. or higher. Preferably, an atmosphere of a high temperature of 740 ° C. or higher and a low oxygen concentration is maintained, and the region functions as a region for decomposing a dioxin precursor or dioxins.
【００３８】流路５２の頂壁５３には、改質ガス導出口
５４が形成され、導出口５４には、改質ガス給送路ＲＧ
１の上流端が接続される。改質ガス給送路ＲＧ１には、
所望により、排気誘引ブロワー（図示せず）が介装さ
れ、改質ガスは、排気誘引ブロワーの圧力下に縦型流路
５２から改質ガス給送路ＲＧ１に誘引され、廃ガスボイ
ラー（図１）に導入される。A reformed gas outlet 54 is formed in the top wall 53 of the flow path 52, and the outlet 54 is provided with a reformed gas feed passage RG.
1 is connected to the upstream end. In the reformed gas supply path RG1,
If desired, an exhaust attraction blower (not shown) is interposed, and the reformed gas is attracted from the vertical flow path 52 to the reformed gas supply passage RG1 under the pressure of the exhaust attraction blower, and is discharged to the waste gas boiler (FIG. Introduced in 1).
【００３９】図３は、遮熱壁２０の構造を示す部分縦断
面図である。支持体２１上に多段に載置した多数の球形
セラミックス２２は、改質域１５を区画する通気可能な
遮熱壁２０を構成する。遮熱壁２０の間隙２５は、遮熱
壁全域に分散し且つ不規則に連続する多数の狭小流路を
形成するので、改質域１５に流入した廃塗料の液滴およ
び高温混合気は、遮熱壁２０の各狭小流路に分散し、高
温雰囲気の各狭小流路において効果的に混合する。この
ため、高温水蒸気による廃塗料中の炭化水素の水蒸気改
質反応は、高温ガスが遮熱壁２０の間隙２５を通過する
際に効果的に進行し、水蒸気改質反応の反応時間は短縮
する。同時に、遮熱壁２０は、熱分解ガス中の煤や、タ
ール状成分の凝縮液等を捕捉し、改質ガスを浄化する浄
化手段として働く。FIG. 3 is a partial longitudinal sectional view showing the structure of the heat shield wall 20. A large number of spherical ceramics 22 mounted on the support 21 in multiple stages form a heat-permeable heat-insulating wall 20 that defines the reforming region 15. Since the gap 25 of the heat shield wall 20 forms a large number of narrow channels that are dispersed and irregularly continuous throughout the heat shield wall, the droplets of the waste paint and the high-temperature air-fuel mixture flowing into the reforming area 15 are: It is dispersed in each narrow channel of the heat shield wall 20 and is effectively mixed in each narrow channel of a high-temperature atmosphere. For this reason, the steam reforming reaction of the hydrocarbon in the waste paint by the high-temperature steam effectively proceeds when the high-temperature gas passes through the gap 25 of the heat shield wall 20, and the reaction time of the steam reforming reaction is reduced. . At the same time, the heat shield wall 20 functions as a purifying means for trapping soot in the pyrolysis gas, condensed liquid of the tar-like component, etc., and purifying the reformed gas.
【００４０】改質域１５及び間隙２５における廃油液滴
及び高温混合気の混合により、廃油は熱分解し、同時
に、熱分解した廃油の炭化水素と水蒸気及び空気とが高
温雰囲気の下で反応し、熱分解ガス中の炭化水素の水蒸
気改質反応が進行する。球形セラミックス２２は高温ガ
スに伝熱接触して蓄熱し、間隙２５の高温状態は持続す
る。遮熱壁２０は、改質域１５の熱が横型流路５１に放
熱するのを防止し、改質域１５を断熱し、改質域１５の
高温雰囲気を維持する。The mixing of the waste oil droplets and the high-temperature mixture in the reforming zone 15 and the gap 25 thermally decomposes the waste oil, and at the same time, the hydrocarbons of the pyrolyzed waste oil react with steam and air under a high-temperature atmosphere. Then, a steam reforming reaction of hydrocarbons in the pyrolysis gas proceeds. The spherical ceramic 22 is in heat transfer contact with the high-temperature gas and stores heat, and the high-temperature state of the gap 25 is maintained. The heat shield wall 20 prevents the heat of the reforming zone 15 from radiating to the horizontal flow path 51, insulates the reforming zone 15, and maintains a high-temperature atmosphere in the reforming zone 15.
【００４１】以上、本発明の好適な実施例について詳細
に説明したが、本発明は上記実施例に限定されるもので
はなく、特許請求の範囲に記載された本発明の範囲内で
種々の変形又は変更が可能である。Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications may be made within the scope of the present invention described in the appended claims. Or it can be changed.
【００４２】例えば、上記実施例では、球形耐熱材料と
して中実の球形セラミックスを使用したが、金属の球形
成形体を球形耐熱材料として使用しても良く、また、耐
熱材料の形状は、球形に限定されるものではなく、任意
の形状に設計し得る。更に、耐熱材料は、必ずしも中実
構造である必要はなく、中空構造に設計しても良い。ま
た、上記水蒸気・空気加熱装置として、レキュペレー
タ、金属コイル又は金属フィン形式の高性能熱交換器
や、ハニカム型蓄熱体を備えた高温空気発生装置又は高
温水蒸気発生装置（特願平１０−１８９号（特開平１０
−２４６４２８号公報）、特願平８−２３０６８２号
（特開平１０−７３２３６号公報）等）、更には、多数
のペレット、ペブル又はボール形蓄熱体を収容した形式
の蓄熱型熱交換器などの任意の形式の熱交換器及び加熱
装置を使用し得る。For example, in the above embodiment, a solid spherical ceramic is used as the spherical heat-resistant material. However, a metal sphere-forming body may be used as the spherical heat-resistant material, and the shape of the heat-resistant material is spherical. It is not limited, and can be designed in any shape. Further, the heat-resistant material does not necessarily have to have a solid structure, and may be designed to have a hollow structure. Further, as the steam / air heating device, a high-performance heat exchanger of a recuperator, a metal coil or a metal fin type, a high-temperature air generator or a high-temperature steam generator equipped with a honeycomb-type regenerator (Japanese Patent Application No. 10-189). (Japanese Patent Laid-Open No. 10
246428), Japanese Patent Application No. 8-230682 (Japanese Patent Application Laid-Open No. 10-73236), and the like. Any type of heat exchanger and heating device may be used.
【００４３】更に、上記実施例では、廃油として廃塗料
を例示したが、本発明の廃油処理装置は、自動車工場、
石油化学プラント、食品プラント等から排出される各種
の廃油を処理する廃油処理装置として使用することがで
きる。Further, in the above embodiment, the waste paint is exemplified as the waste oil.
It can be used as a waste oil treatment device for treating various waste oils discharged from petrochemical plants, food plants and the like.
【００４４】[0044]
【発明の効果】以上説明した如く、本発明によれば、固
液分離又は溶剤分離等の廃油の前処理工程を省略し、廃
油を直に熱分解し且つ改質することができるので、廃塗
料等の廃油の廃棄処理プロセスを簡素化し、廃油処理シ
ステムの熱効率及び運転効率を改善する廃油処理装置及
び廃油処理方法を提供することができる。As described above, according to the present invention, a waste oil pretreatment step such as solid-liquid separation or solvent separation can be omitted, and the waste oil can be directly thermally decomposed and reformed. It is possible to provide a waste oil treatment apparatus and a waste oil treatment method that simplify a waste treatment process of waste oil such as paint and improve the thermal efficiency and operation efficiency of the waste oil treatment system.
【００４５】また、本発明の改質炉によれば、高温の水
蒸気及び空気により廃油の熱分解及び改質が同時進行す
るので、廃油を直に導入することにより、比較的多量の
炭化水素、一酸化炭素及び水素を含む改質ガスを生成す
ることができる廃油処理装置の改質炉が提供される。Further, according to the reforming furnace of the present invention, since the thermal decomposition and reforming of waste oil proceed simultaneously with high-temperature steam and air, a relatively large amount of hydrocarbons, A reforming furnace of a waste oil treatment device capable of generating a reformed gas containing carbon monoxide and hydrogen is provided.
【図１】本発明の好適な実施形態に係る廃油処理装置の
システム・フロー図である。FIG. 1 is a system flow diagram of a waste oil treatment device according to a preferred embodiment of the present invention.
【図２】図１に示す改質炉の実施例を示す縦断面図であ
る。FIG. 2 is a longitudinal sectional view showing an embodiment of the reforming furnace shown in FIG.
【図３】改質炉の通気性遮熱壁の構造を示す部分縦断面
図である。FIG. 3 is a partial longitudinal sectional view showing a structure of a gas permeable heat shield wall of a reforming furnace.
１ 改質炉 １０ 改質容器部分 １２ 廃油導入口 １４ 混合気導入口 １５ 改質域 ２０ 通気性遮熱壁 ５０ 改質ガス流動部分 ＲＧ 改質ガス給送路 ＦＧ 燃料ガス供給路 ＳＡ 空気供給ライン ＳＷ 給水ライン ＬＳ 水蒸気供給路 ＨＡ 予熱空気供給路 ＬＧ 低温混合気供給路 ＭＧ 高温混合気供給路 DESCRIPTION OF SYMBOLS 1 Reforming furnace 10 Reformer container part 12 Waste oil introduction port 14 Mixture introduction port 15 Reformation area 20 Breathable heat shield wall 50 Reformation gas flow part RG Reformation gas supply path FG Fuel gas supply path SA Air supply line SW water supply line LS steam supply path HA preheated air supply path LG low-temperature mixture supply path MG high-temperature mixture supply path
───────────────────────────────────────────────────── フロントページの続き (72)発明者 筒井 晃一 東京都品川区南品川４−１−15 日本ペイ ント株式会社内 Ｆターム(参考） 3K023 QA18 QB01 QB05 QB09 QB10 QC04 QC08 4G040 BA02 BB03 EA03 EA06 EA07 EB01 EB03 EB04 EB34 EB35 EB44 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koichi Tsutsui 4-1-15 Minamishinagawa, Shinagawa-ku, Tokyo F-term in Japan Paint Co., Ltd. (reference) 3K023 QA18 QB01 QB05 QB09 QB10 QC04 QC08 4G040 BA02 BB03 EA03 EA06 EA07 EB01 EB03 EB04 EB34 EB35 EB44
Claims (9)
て、 廃油を導入可能な改質炉と、該改質炉に高温の水蒸気及
び空気を供給する水蒸気・空気加熱装置と、改質炉に生
成した改質ガスを冷却する冷却手段とを有し、 前記水蒸気・空気加熱装置は、水蒸気及び空気を５００
℃以上の高温に加熱して前記改質炉に供給し、 前記改質炉は、前記廃油を炉内領域に噴霧する噴霧手段
と、該炉内領域に高温の水蒸気及び空気を導入する水蒸
気・空気導入手段とを備え、前記高温水蒸気及び空気に
よる前記廃油の液滴の熱分解反応及び水蒸気改質反応に
より、前記炉内領域に改質ガスを生成することを特徴と
する廃油処理装置。1. A waste oil treatment device for disposing of waste oil, comprising: a reforming furnace capable of introducing waste oil; a steam / air heating device for supplying high-temperature steam and air to the reforming furnace; And cooling means for cooling the reformed gas.
The reforming furnace is heated to a high temperature of not less than 0 ° C. and supplied to the reforming furnace. The reforming furnace includes a spraying unit that sprays the waste oil into a furnace region, and a steam that introduces high-temperature steam and air into the furnace region. A waste oil treatment apparatus comprising: an air introduction unit, wherein a reformed gas is generated in the furnace area by a thermal decomposition reaction and a steam reforming reaction of the waste oil droplets by the high-temperature steam and air.
を受けた後、燃焼用燃料として前記水蒸気・空気加熱装
置の燃焼手段および発電設備の内燃機関に供給されるこ
とを特徴とする請求項１に記載の廃油処理装置。2. The reformed gas, after being subjected to a cooling process and a dust removal process, is supplied as combustion fuel to combustion means of the steam / air heating device and an internal combustion engine of a power generation facility. Item 6. A waste oil treatment device according to Item 1.
て、前記水蒸気・空気加熱装置に供給すべき水蒸気及び
空気を生成又は加熱する熱交換器を備えたことを特徴と
する請求項２に記載の廃油処理装置。3. A heat exchanger for generating or heating steam and air to be supplied to the steam / air heating device by utilizing heat radiation in a cooling process of the reformed gas. 3. The waste oil treatment device according to 2.
て、 廃油を改質炉の単一の改質領域に噴霧して廃油の液滴を
改質領域に分散し、 空気及び水蒸気を５００℃以上の高温に加熱して前記改
質領域に導入して、廃油の液滴を熱分解するとともに、
熱分解した廃油の成分を高温水蒸気により改質し、比較
的多量の炭化水素、一酸化炭素及び水素を含有する改質
ガスを生成することを特徴とする廃油処理方法。4. A waste oil treatment method for disposing of waste oil, wherein the waste oil is sprayed onto a single reforming region of a reforming furnace to disperse droplets of the waste oil into the reforming region, and air and steam are heated to 500 ° C. or higher. Heated to a high temperature and introduced into the reforming zone to thermally decompose waste oil droplets,
A waste oil treatment method comprising reforming a component of thermally decomposed waste oil with high-temperature steam to generate a reformed gas containing a relatively large amount of hydrocarbons, carbon monoxide and hydrogen.
の温度に冷却し、燃焼用燃料として発電設備の内燃機関
に供給するとともに、前記改質ガスの一部を燃焼し、燃
焼熱により前記空気及び水蒸気を高温に加熱することを
特徴とする請求項４に記載の廃油処理方法。5. A method for removing dust from the reformed gas and cooling the gas to a temperature of 100 ° C. or less, supplying the reformed gas to an internal combustion engine of a power generation facility as a fuel for combustion, and burning a part of the reformed gas. The waste oil treatment method according to claim 4, wherein the air and the steam are heated to a high temperature.
温度に加熱されることを特徴とする請求項５に記載の廃
油処理方法。6. The waste oil treatment method according to claim 5, wherein the air and the steam are heated to a temperature of 800 ° C. or higher.
合する改質領域と、該改質領域に対して廃油の液滴を噴
霧する噴霧手段と、高温の空気及び水蒸気を改質領域に
導入する空気・水蒸気導入口と、改質領域に生成した改
質ガスを炉外に導出する改質ガス導出路と、前記改質領
域及び改質ガス導出路の間に配置された耐熱材料の通気
性遮熱壁とを備えたことを特徴とする廃油処理装置の改
質炉。7. A reforming region for mixing waste oil droplets with high-temperature air and water vapor, spraying means for spraying waste oil droplets onto the reforming region, and a high-temperature air and water vapor reforming region. An air / steam inlet to be introduced into the reforming section, a reformed gas outlet path for guiding the reformed gas generated in the reforming area out of the furnace, and a heat-resistant material disposed between the reforming area and the reformed gas outlet path. A reforming furnace for a waste oil treatment apparatus, comprising: a gas permeable heat shield wall;
多数のセラミックス成形体又は金属成形体からなること
を特徴とする請求項７に記載の改質炉。8. The reforming furnace according to claim 7, wherein the heat shield wall is composed of a large number of ceramic molded bodies or metal molded bodies laminated in a multilayer structure.
る改質ガス流動部を備え、該流動部は、横型流路及び縦
型流路を含み、改質ガスの高温滞留時間を確保するよう
にしたことを特徴とする請求項７又は８に記載の改質
炉。9. A reformed gas flowing portion through which the reformed gas having passed through the heat shield wall flows, the flowing portion includes a horizontal flow path and a vertical flow path, and a high-temperature residence time of the reformed gas is reduced. 9. The reforming furnace according to claim 7, wherein the reforming furnace is secured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001144276A JP2002338976A (en) | 2001-05-15 | 2001-05-15 | Apparatus and method for treating waste oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001144276A JP2002338976A (en) | 2001-05-15 | 2001-05-15 | Apparatus and method for treating waste oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002338976A true JP2002338976A (en) | 2002-11-27 |
Family
ID=18990252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001144276A Pending JP2002338976A (en) | 2001-05-15 | 2001-05-15 | Apparatus and method for treating waste oil |
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| Country | Link |
|---|---|
| JP (1) | JP2002338976A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005298264A (en) * | 2004-04-12 | 2005-10-27 | Toshiba Corp | Pyrolytic gasification reformer |
| JP2009179542A (en) * | 2008-02-01 | 2009-08-13 | Mitsui Eng & Shipbuild Co Ltd | Reforming reactor and reforming method of waste cooking oil |
| JP2011093719A (en) * | 2009-10-27 | 2011-05-12 | Tokyo Gas Co Ltd | Method for producing and utilizing hydrogen |
| WO2012014277A1 (en) * | 2010-07-27 | 2012-02-02 | 株式会社日本計画機構 | Method for producing hydrogen-containing gas |
| KR101522213B1 (en) * | 2014-09-19 | 2015-05-21 | 한국생산기술연구원 | Gasifying apparatus and gasifying method |
-
2001
- 2001-05-15 JP JP2001144276A patent/JP2002338976A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005298264A (en) * | 2004-04-12 | 2005-10-27 | Toshiba Corp | Pyrolytic gasification reformer |
| JP2009179542A (en) * | 2008-02-01 | 2009-08-13 | Mitsui Eng & Shipbuild Co Ltd | Reforming reactor and reforming method of waste cooking oil |
| JP2011093719A (en) * | 2009-10-27 | 2011-05-12 | Tokyo Gas Co Ltd | Method for producing and utilizing hydrogen |
| WO2012014277A1 (en) * | 2010-07-27 | 2012-02-02 | 株式会社日本計画機構 | Method for producing hydrogen-containing gas |
| JP5385396B2 (en) * | 2010-07-27 | 2014-01-08 | 株式会社ジャパンブルーエナジー | Method for producing hydrogen-containing gas |
| KR101522213B1 (en) * | 2014-09-19 | 2015-05-21 | 한국생산기술연구원 | Gasifying apparatus and gasifying method |
| WO2016043484A1 (en) * | 2014-09-19 | 2016-03-24 | 한국생산기술연구원 | Gasification apparatus and gasification method |
| US10352559B2 (en) | 2014-09-19 | 2019-07-16 | Korea Institute Of Industrial Technology | Gasification apparatus and gasification method |
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