JP2007057110A - Catalytic combustion apparatus - Google Patents
Catalytic combustion apparatus Download PDFInfo
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- JP2007057110A JP2007057110A JP2005239469A JP2005239469A JP2007057110A JP 2007057110 A JP2007057110 A JP 2007057110A JP 2005239469 A JP2005239469 A JP 2005239469A JP 2005239469 A JP2005239469 A JP 2005239469A JP 2007057110 A JP2007057110 A JP 2007057110A
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- catalyst
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- catalytic combustion
- combustion apparatus
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- 238000007084 catalytic combustion reaction Methods 0.000 title claims abstract description 20
- 239000003054 catalyst Substances 0.000 claims abstract description 79
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 10
- 230000001877 deodorizing effect Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 238000002048 anodisation reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 2
- 229910017052 cobalt Inorganic materials 0.000 claims 2
- 239000010941 cobalt Substances 0.000 claims 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 2
- 229910052802 copper Inorganic materials 0.000 claims 2
- 239000010949 copper Substances 0.000 claims 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 229910052741 iridium Inorganic materials 0.000 claims 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 229910052763 palladium Inorganic materials 0.000 claims 2
- 229910052702 rhenium Inorganic materials 0.000 claims 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims 2
- 229910052703 rhodium Inorganic materials 0.000 claims 2
- 239000010948 rhodium Substances 0.000 claims 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims 2
- 229910052707 ruthenium Inorganic materials 0.000 claims 2
- 229910052709 silver Inorganic materials 0.000 claims 2
- 239000004332 silver Substances 0.000 claims 2
- 229910052718 tin Inorganic materials 0.000 claims 2
- 229910052725 zinc Inorganic materials 0.000 claims 2
- 239000011701 zinc Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 36
- 239000010410 layer Substances 0.000 description 10
- 238000004332 deodorization Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- -1 deodorization Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
Description
本発明は、通常触媒体であるパイプ状の反応器側(二次側／Ｂ,（２）)にアルマイト触媒体部分と耐熱性に優れた通電加熱可能な帯状のアルマイト触媒体（８）を用い、熱交換、加熱、触媒反応を一つの器体内で一体化し、装置を小型化、低コスト化し高効率の触媒式燃焼装置に関するものである。 In the present invention, an alumite catalyst body portion and a strip-shaped alumite catalyst body (8) excellent in heat resistance and capable of current heating are provided on the side of the pipe-shaped reactor (secondary side / B, (2)) which is a normal catalyst body. The present invention relates to a high-efficiency catalytic combustion apparatus in which heat exchange, heating, and catalytic reaction are integrated in a single container to reduce the size and cost of the apparatus.
製造業の現場、生ごみ、トイレなどの生活の場、料理店、豚舎・牛舎、病院などの臭気性ガス、塗料をはじめ揮発性化学物質、自動車の排気ガス等は環境問題、健康生活の面、さらには燃料電池用の燃料改質装置の開発など解決すべき極めて重要な問題とされ多くの技術が提案されてきた。 Manufacturing sites, living places such as garbage and toilets, odorous gases in restaurants, piggeries and cowsheds, hospitals, volatile chemicals such as paint, exhaust gases from automobiles, etc. Furthermore, many technologies have been proposed as extremely important problems to be solved, such as the development of a fuel reformer for a fuel cell.
従来、一般的には図１にそのプロセスを示すように、例えば、脱臭装置においては脱臭対象ガスを熱交換後、加熱しその後触媒で処理するという３つの工程がそれぞれ独立して設けられた装置であった(たとえば、特開２００１−３４０４３４)（特許文献１）。この装置の欠点はスタ−トアップに時間がかかること、装置が大がかりなものになることなどの問題があった。これらの欠点を解決するため加熱工程にも触媒作用を持たせようという提案がなされた。(図２) またランニングコストを下げる必要もあり熱交換機能を高めるとする提案もなされている。例えば、特開２００２−２３３７５０(特許文献２)には予熱室、触媒反応室及び排気室が３層をなす熱交換機能を有する気体用触媒反応器で、最内層から中間層に向かって熱交換による熱伝導が生じるように構成されている熱交換機能を組み合わせた気体用触媒反応器が開示され、該反応機を用い反応ガスを導入する吸気口、反応ガスの加熱部、流量計、排気口等を設けた装置が提案されている。この装置は熱交換という点ではメリットがあるが、加熱手段はガスバ−ナによるものであり、外部よりガスを導入する必要がある。また触媒反応室はフィン型のものであり作製の煩雑さにより装置製作にコスト高を生じるという欠点を有している。 Conventionally, as generally shown in FIG. 1, for example, in a deodorizing apparatus, an apparatus in which three steps of heat-exchange the gas to be deodorized, heat and then treat with a catalyst are independently provided. (For example, JP 2001-340434 A) (Patent Document 1). The disadvantages of this apparatus are that it takes time to start up and the apparatus becomes large. In order to solve these drawbacks, a proposal has been made to provide a catalytic action in the heating process. (Fig. 2) In addition, it is necessary to reduce running costs, and proposals have been made to increase the heat exchange function. For example, Japanese Patent Application Laid-Open No. 2002-233750 (Patent Document 2) describes a gas catalytic reactor having a heat exchange function in which a preheating chamber, a catalytic reaction chamber, and an exhaust chamber form three layers, and performs heat exchange from the innermost layer toward the intermediate layer. Disclosed is a gas catalytic reactor combined with a heat exchanging function configured to cause heat conduction by an intake, an inlet for introducing a reaction gas using the reactor, a reaction gas heating unit, a flow meter, and an exhaust Etc. have been proposed. Although this apparatus has an advantage in terms of heat exchange, the heating means is a gas burner, and it is necessary to introduce gas from the outside. In addition, the catalytic reaction chamber is of a fin type and has a drawback that the production cost is high due to the complexity of the production.
また、特開２００４−９７６５０(特許文献３)では器体内部に脱臭ガスの加熱部とこれに近接するハニカム形状の触媒層よりなる脱臭処理室を設けこの室の略全体周囲に室に沿って多数の熱交換管が配設され処理ガスが熱交換内を上下、横方向にジグザグに流れるようにした脱臭器が提案されている。本器は熱交換効率に優れ省電力化が図られるものと示されている。しかしハニカム状の触媒体を用いることにより依然としてコスト高の問題が残っている。 In JP-A-2004-97650 (Patent Document 3), a deodorizing treatment chamber comprising a heating unit for deodorizing gas and a honeycomb-shaped catalyst layer adjacent to the heating unit is provided inside the vessel body, and the chamber is provided around the entire chamber. There has been proposed a deodorizer in which a large number of heat exchange tubes are arranged so that the processing gas flows in a zigzag manner in the vertical and horizontal directions in the heat exchange. This device is shown to have excellent heat exchange efficiency and power saving. However, the problem of high cost still remains by using the honeycomb-shaped catalyst body.
本発明は容易に入手可能なアルミニウムパイプ（２）の熱交換ゾーン(一次側／Ａゾーン)および通電加熱式アルマイト触媒帯状体（５）および触媒担持部分のパイプ（４）による触媒反応ゾーン(二次側／Ｂゾーン)を用い、熱交換、加熱、触媒反応を一つの器体内で一体化して行わしめ、脱臭等の処理の立ち上げ速度のアップ、消費電力削減、装置にかかわるコスト低減、装置のコンパクト化、メンテナンスの簡素化を図り、本来の目的である触媒の反応効果を高めようとするものである。 The present invention provides a heat exchange zone (primary side / A zone) of an aluminum pipe (2) that is readily available, and a catalytic reaction zone (2) by means of an electrically heated alumite catalyst strip (5) and a pipe (4) of the catalyst carrying part. Next side / B zone), heat exchange, heating, and catalytic reaction are integrated in one container, increasing the startup speed of processing such as deodorization, reducing power consumption, and reducing costs related to the equipment, equipment Therefore, it is intended to make the catalyst more compact and to simplify the maintenance, and to improve the reaction effect of the catalyst, which is the original purpose.
かかる触媒反応器を脱臭装置、VOC分解装置、排ガス浄化装置、燃料電池用燃料改質装置などに適用し、それら装置による機能効果はもちろん、スペース面、メンテナンス面、コスト面でも有用性を高めることができる。 Applying such catalytic reactors to deodorization equipment, VOC decomposition equipment, exhaust gas purification equipment, fuel reforming equipment for fuel cells, etc., to improve usability in terms of space, maintenance, and cost as well as functional effects of these equipment Can do.
熱交換機能を高めるために、さらに装置にかかわるコスト低減のために熱伝導率が２２８Ｗ/ｍ・ｋときわめて高い(水は０．６、磁器は１５)アルミニウムパイプ（２）を器体内に整列配設し、パイプの一次側(Ａ)において熱交換せしめ、また、パイプの二次側(Ｂ)においてはアルマイトの電気絶縁性を利用しパイプに通電可能な触媒担持帯状体（５）を接触させ、巻回し張り巡らし通電により当該部を昇温せしめ触媒反応を急速に立ち上げ容易ならしめる。ここでの触媒は白金系触媒が用いられる。パイプは邪魔板（３）に貫通して保持する。邪魔板（３）はパイプ（２）を保持するため、また、ガス流を乱流化し脱臭等の処理対象ガス等が触媒体部分のパイプ(Ｂ、（４）)および帯状触媒体（５）に有効に接触するため必須である。円筒状器体は蝶番、フランジ等で固定し、器体端部も円筒状器体とフランジ等で固定することで器体、邪魔板、器体端部のそれぞれを脱着可能とし内部のメンテナンスを容易とする。 In order to enhance the heat exchange function and to further reduce the cost associated with the equipment, the thermal conductivity is extremely high at 228 W / m · k (water is 0.6, porcelain is 15). Aluminum pipes (2) are aligned in the body. It is arranged and heat exchange is performed on the primary side (A) of the pipe, and on the secondary side (B) of the pipe, a catalyst carrying strip (5) capable of energizing the pipe is contacted using the electrical insulation of anodized. Then, the temperature of the portion is raised by winding and energizing to rapidly start up the catalytic reaction and make it easy. The catalyst here is a platinum-based catalyst. The pipe is held through the baffle plate (3). The baffle plate (3) holds the pipe (2), and the gas to be treated is turbulent and the gas to be treated such as deodorizing is sent to the pipe (B, (4)) and the strip-shaped catalyst body (5). It is essential for effective contact. The cylindrical body is fixed with a hinge, flange, etc., and the end of the body is fixed with the cylindrical body and flange, etc., so that each of the body, baffle plate, and end of the body can be attached and detached for internal maintenance. Make it easy.
前項の課題を解決するために、本発明ではアルミニウムよりなるパイプ（４）の表面をアルマイト処理し、その触媒反応器側(Ｂ)の表層には触媒を担持させた通常触媒体となす。このパイプの断面形状は円形状、または楕円状が望ましい。 In order to solve the problem of the preceding paragraph, in the present invention, the surface of the pipe (4) made of aluminum is alumite-treated, and the surface layer on the catalyst reactor side (B) becomes a normal catalyst body carrying a catalyst. The cross-sectional shape of this pipe is preferably circular or elliptical.
このパイプ（４）を複数本整列、配設する。このパイプ（４）の触媒反応器側の長さの略一部分に当たる触媒担持部分(Ｂ)に通電可能な帯状触媒体（５）をパイプ触媒反応器(Ｂ)の１本ずつ交互に円弧状に接するようにパイプ(Ｂ、（４）)の長手方向に一定間隔で巻回し張り巡らすことが望ましい。 A plurality of the pipes (4) are arranged and arranged. In this pipe (4), the strip-shaped catalyst body (5) that can be energized to the catalyst carrying portion (B) corresponding to a part of the length on the catalyst reactor side is alternately formed in an arc shape one by one in the pipe catalyst reactor (B). It is desirable that the pipes (B, (4)) are wound around the pipe (B, (4)) at regular intervals so as to be in contact with each other.
この装置において、まず、帯状触媒体（５）が通電によって加熱され、脱臭等処理対象ガスの処理に必要な温度条件を得ることができる。さらにパイプの触媒反応器側の触媒体部分(Ｂ)も帯状触媒体（５）の熱によって加熱され、パイプの内部を通過する処理ガスも加熱し昇温する。このパイプの熱交換側(Ａ)も脱臭等処理対象ガスの吸入口近傍に当たり、低温の脱臭対象ガスなどの予備加熱ゾーンの機能をもつ。従って、予備加熱のために特別の加熱装置を付加する必要がない。 装置が簡素化し、メンテナンス性が高まることに資する。 予備加熱された脱臭等処理対象ガスは回帰板（６）に衝突し、パイプ触媒反応器側(Ｂ)の触媒体に移動し、そこでは通電加熱された帯状触媒体（５）がパイプ触媒反応側(Ｂ)に巻回されたゾーンでは触媒担持されたパイプ（４）と帯状触媒体（５）とはほぼ同等の温度になり、脱臭対象ガスの触媒による脱臭反応が生じる。特に、脱臭等処理対象ガスはより予備加熱されており、消費電力が減少できる。 In this apparatus, first, the strip-shaped catalyst body (5) is heated by energization to obtain a temperature condition necessary for processing the gas to be processed such as deodorization. Furthermore, the catalyst body portion (B) on the catalyst reactor side of the pipe is also heated by the heat of the strip-shaped catalyst body (5), and the processing gas passing through the inside of the pipe is also heated to raise the temperature. The heat exchange side (A) of this pipe is also in the vicinity of the suction port of the gas to be treated such as deodorizing, and has a function of a preheating zone for the gas to be deodorized at a low temperature. Therefore, it is not necessary to add a special heating device for preheating. This contributes to simplified equipment and improved maintainability. The preheated gas to be treated such as deodorized collides with the return plate (6) and moves to the catalyst body on the side of the pipe catalyst reactor (B), where the strip-shaped catalyst body (5) heated and energized becomes the pipe catalyst reaction. In the zone wound on the side (B), the catalyst-supported pipe (4) and the strip-shaped catalyst body (5) have substantially the same temperature, and the deodorization reaction by the catalyst of the deodorization target gas occurs. In particular, the gas to be treated such as deodorizing is preheated more and power consumption can be reduced.
このように触媒反応機能、熱交換機能および加熱機能とが一体化されること、また、非通電の通常触媒体である部分のパイプ(Ｂ,（４）)と通電帯状触媒体（５）とが併設されているために触媒機能の向上はもちろん、装置のコンパクト化、延いては低コスト化が可能になる。 Thus, the catalytic reaction function, the heat exchange function, and the heating function are integrated, and the pipe (B, (4)) and the energized belt-shaped catalyst body (5) which are non-energized normal catalyst bodies As a result, the catalyst function can be improved and the apparatus can be made compact and the cost can be reduced.
このパイプ状触媒体(Ｂ、（４）)に通電帯状触媒体（５）を巻回した触媒反応器はたとえば、ハニカム状触媒体、フィン型触媒体等に比し、その構造が非常にシンプルであり、触媒式燃焼装置としてメンテナンス面、コスト面で有利である。
この触媒反応器ではパイプ状触媒体(Ｂ、（４）)に通電帯状触媒体（５）を接して巻回し張り巡らす構造であるが、それぞれの表層がアルマイトであり、電気絶縁性が確保できる利点がある。
The catalyst reactor in which the current-granular catalyst body (5) is wound around the pipe-shaped catalyst body (B, (4)) has a very simple structure compared to, for example, a honeycomb-shaped catalyst body or a fin-type catalyst body. As a catalytic combustion apparatus, it is advantageous in terms of maintenance and cost.
This catalyst reactor has a structure in which the current-granular catalyst body (5) is in contact with the pipe-shaped catalyst body (B, (4)) and wound around, but each surface layer is anodized to ensure electrical insulation. There are advantages.
従来の通電加熱触媒体のように金属部分との接点に設けられる電気絶縁材料が不要である。この点においても装置の簡素化、コンパクト化にこの触媒式燃焼装置は有利である。 There is no need for an electrically insulating material provided at the contact point with the metal portion as in the case of a conventional energization heating catalyst body. Also in this respect, this catalytic combustion apparatus is advantageous for simplifying and compacting the apparatus.
脱臭等処理対象ガスを触媒によって処理する場合、該ガスの触媒への接触時間を充分にとること、および処理ガスの流れを撹拌することが処理効果を高めることになる。そのためにガスの流れを遮断し、乱流するための邪魔板（３）が配設される。Ｂゾーンにある 邪魔板（３）の表面も陽極酸化によりアルマイト化処理されたものが使用される。 すなわち、邪魔板（３）と該通電加熱の帯状触媒体（５）との接触があると漏電し、電気ショックが起こるので電気絶縁性が求められる。さらに、邪魔板（３）も触媒体の通電加熱によって非常に高温で酸化雰囲気になる。従って、邪魔板（３）の表面材質をセラミックス態のアルマイト化処理される。 When a gas to be treated such as deodorizing is treated with a catalyst, a sufficient contact time of the gas with the catalyst and stirring of the flow of the treatment gas enhance the treatment effect. For this purpose, a baffle plate (3) for blocking the gas flow and turbulent flow is provided. The surface of the baffle plate (3) in the B zone is also anodized by anodization. That is, if there is a contact between the baffle plate (3) and the energized and heated belt-like catalyst body (5), electric leakage occurs and electric shock occurs, so that electrical insulation is required. Further, the baffle plate (3) also becomes an oxidizing atmosphere at a very high temperature by energization heating of the catalyst body. Therefore, the surface material of the baffle plate (3) is subjected to a ceramic anodizing treatment.
パイプ触媒反応器側のパイプ状触媒体(Ｂ,（４）)と通電触媒体の帯状触媒体（５）は、いずれもアルミニウムからなり、その表層は陽極酸化によりアルマイト層が形成され、さらに、酸処理、水和処理等によってアルマイト層の細孔の拡大、表面積の増大がなされたアルマイト触媒体である。したがって、触媒をより稠密で、より均等に担持できる特質を有している。 The pipe-shaped catalyst body (B, (4)) on the pipe catalyst reactor side and the strip-shaped catalyst body (5) of the current-carrying catalyst body are both made of aluminum, and the surface layer is formed with an anodized layer by anodic oxidation. It is an alumite catalyst body in which the pores of the alumite layer are enlarged and the surface area is increased by acid treatment, hydration treatment or the like. Therefore, the catalyst can be denser and more uniformly supported.
さらにまた、通電帯状触媒体（５）は通電によって非常に高温、たとえば、1000℃に近い高温にもなることがあるが、触媒体としての機能を維持するために、鉄、ニッケル、クロムをベースにした合金の両面に特定の接合方法でアルミニウムを配したクラッド構造であり、通電帯状触媒体（５）は1000℃を超えて使用可能な耐熱性を有している。 Furthermore, the energized belt-like catalyst body (5) may become very high temperature, for example, close to 1000 ° C. when energized, but in order to maintain its function as a catalyst body, it is based on iron, nickel, or chromium. The clad structure in which aluminum is arranged on both sides of the alloy made by a specific joining method, and the energized belt-like catalyst body (5) has heat resistance that can be used at over 1000 ° C.
パイプ状触媒体(Ｂ,（４）)および通電帯状触媒体（５）の寸法仕様の詳細は脱臭等の処理対象ガス、VOCガス、自動車排気ガス、燃料電池の燃料などの性質、処理量によって異なる。 The details of the dimensional specifications of the pipe-shaped catalyst body (B, (4)) and the current-carrying belt-shaped catalyst body (5) depend on the processing target gas such as deodorization, VOC gas, automobile exhaust gas, fuel cell fuel, etc. Different.
発明の実施の形態で示した触媒式燃焼装置は略、縦５０ｍｍ、横５００ｍｍ、高さ
５０ｍｍで、脱臭装置に適用した。
The catalytic combustion apparatus shown in the embodiment of the present invention is approximately 50 mm long, 500 mm wide, and 50 mm high, and is applied to a deodorizing apparatus.
この実施例では、［脱臭対象ガス処理量／触媒反応器設置面積］は８Ｌ／ｍｉｎ.ｃｍ２となり，熱交換、脱臭対象ガスの加熱、触媒反応部が一体化され、従来技術に比べて設置スペースは３０％小さく、コンパクトなもので、かつ充分な脱臭率であった。また、触媒反応を有効ならしめる温度に到達するに要する時間は脱臭対象ガス吸入後に通電後１分(従来３０分)と極めて短時間であった。さらに、従来脱臭装置の消費電力は約1.2kW/(m3/min),本発明の装置では消費電力は約0.9〜１ｋＷ/(m3/min),20〜30％省エネルギーであった。 In this embodiment, the [deodorization target gas throughput / catalyst reactor installation area] is 8 L / min.cm 2 , and heat exchange, heating of the deodorization target gas, and the catalytic reaction unit are integrated and installed in comparison with the prior art. The space was 30% smaller, compact, and had a sufficient deodorization rate. In addition, the time required to reach the temperature at which the catalytic reaction becomes effective was extremely short, 1 minute (30 minutes in the past) after energization after inhalation of the deodorized gas. Furthermore, the power consumption of the conventional deodorizing apparatus is about 1.2 kW / (m 3 / min), and the power consumption of the apparatus of the present invention is about 0.9 to 1 kW / (m 3 / min), which is 20 to 30% energy saving.
さらに、本発明では安価なアルミニウムパイプを用い、通電可能な触媒担持帯状体を巻きつけるという極めて簡易な技術で触媒反応主要部を構成でき、かつ熱交換、脱臭対象ガスの加熱も同一器体内で行えることによって、反応器の製造コストは従来のものに比べ安価に得られた。また、円筒状器体、端部はそれぞれ脱着可能で内部の触媒の劣化状態の観察、触媒担持帯状体の交換あるいは邪魔板の位置調整に好都合であった。 Furthermore, in the present invention, the main part of the catalytic reaction can be configured by an extremely simple technique of using an inexpensive aluminum pipe and wrapping an energized catalyst-carrying belt, and heat exchange and heating of the gas to be deodorized can be performed in the same container. By being able to do so, the manufacturing cost of the reactor was obtained at a lower cost than the conventional one. Also, the cylindrical body and the end were removable, which was convenient for observing the deterioration state of the internal catalyst, exchanging the catalyst support belt or adjusting the position of the baffle plate.
アルミニウムパイプの長さの反応器側に相当する略１／３を陽極酸化によってその表層にアルマイト層を形成せしめ、その後酸処理によりアルマイト層の細孔径を拡大し、次いで水和処理して後焼成しＢＥＴ比表面積が高められたアルマイト触媒担体を作製する。この技術は公知で例えば特開平０８−２４６１９０(特許文献４)、特開２００２−１１９８５６(特許文献５)などを利用することができる。 About 1/3 of the length of the aluminum pipe corresponding to the reactor side is anodized to form an alumite layer on its surface, and then the pore diameter of the anodized layer is expanded by acid treatment, followed by hydration treatment and post-baking Then, an alumite catalyst support having an increased BET specific surface area is produced. This technique is publicly known, and for example, Japanese Patent Application Laid-Open No. 08-246190 (Patent Document 4) and Japanese Patent Application Laid-Open No. 2002-119856 (Patent Document 5) can be used.
一方、鉄、ニッケル、クロムよりなる合金の帯状薄板にアルミニウムの帯状薄板を圧延接合しクラッド材となし、前記アルミニウム面を陽極酸化すると共に酸および白金触媒を有する溶液中に浸漬処理を施し、合金上に触媒層を形成し通電可能な触媒担持帯状体（９）を作製する。この技術も公知で例えば特開２００２−０６６３３７(特許文献６)、特開２００３−１４４９２０(特許文献７)等を利用することができる。こうして得たパイプと通電可能な触媒担持帯状体を用い、図３および図４に示す触媒式燃焼装置を作製した。ここで邪魔板（３）はアルミニウムパイプを円筒状器体と嵌合により固定するための保持板として機能するばかりでなく脱臭対象ガスがパイプ触媒体(Ｂ、（４）)および触媒担持帯状体（５）と有効に接触し加熱され触媒反応を円滑に行なわせしめるために必須であり、その配設位置、形態、数は脱臭ガスの処理量に応じ実験によって定めることが必要である。また邪魔板（３）の材質は特に定めるものではないが３００℃以上の高温、酸化反応に耐えられるようなセラミックスが望ましい。 On the other hand, an aluminum strip is rolled and joined to a strip of an alloy made of iron, nickel, and chromium to form a clad material, and the aluminum surface is anodized and immersed in a solution having an acid and a platinum catalyst. A catalyst layer is formed on the catalyst layer to produce a catalyst-carrying belt (9). This technique is also known, and for example, JP-A-2002-066337 (Patent Document 6), JP-A-2003-144920 (Patent Document 7) and the like can be used. A catalytic combustion apparatus shown in FIGS. 3 and 4 was produced using the pipe obtained in this way and a catalyst-carrying belt-like body that can be energized. Here, the baffle plate (3) not only functions as a holding plate for fixing the aluminum pipe to the cylindrical body by fitting, but also the deodorizing target gas is the pipe catalyst body (B, (4)) and the catalyst support strip. It is indispensable for effectively contacting (5) and being heated so that the catalytic reaction can be carried out smoothly, and the arrangement position, form and number thereof must be determined by experiment according to the amount of deodorized gas treated. The material of the baffle plate (3) is not particularly defined, but is preferably a ceramic that can withstand an oxidation reaction at a high temperature of 300 ° C. or higher.
円筒状器体は蝶番で固定開閉できるようにしパイプの触媒反応側(Ｂ、（４）)に回帰板を設置し該器体を閉じ邪魔板（３）を器体に嵌合させるようにしてパイプ群の配列を保持しつつフランジで器体全体を固定した。器体両端部も円筒状器体にフランジにて固定した。さらに、円筒状器体の周囲を外筒と断熱材で覆い保護し反応器の熱を外部へ放散しないよう施した。 The cylindrical vessel is fixed with a hinge so that it can be opened and closed. A return plate is installed on the catalytic reaction side (B, (4)) of the pipe, the vessel is closed, and the baffle plate (3) is fitted to the vessel. The entire body was fixed with a flange while maintaining the arrangement of the pipe group. Both ends of the vessel were also fixed to the cylindrical vessel with flanges. Further, the periphery of the cylindrical vessel body was covered and protected with an outer cylinder and a heat insulating material so that the heat of the reactor was not dissipated to the outside.
ここでパイプ（８）は径５mm、長さ５０cmのものを３６本、８mm間隔に配設し、通電可能アルマイト触媒担持帯状体（９）を幅１０mm、長さ２００cmに図５に示すように巻回し張り巡らせた。 Here, 36 pipes (8) having a diameter of 5 mm and a length of 50 cm are arranged at intervals of 8 mm, and the energizable anodized catalyst support strip (9) is 10 mm wide and 200 cm long as shown in FIG. I wound it around.
このようにして作製した触媒反応器に通電し３分後、脱臭対象ガスとして２００pppのプロピオン酸を０．２m3／min.の流量で導入し反応処理せめした。処理後の濃度は２pppであった。このときの通電は１００ボルト、６アンペアで発熱部分の平衡温度は３５０℃であった。 Three minutes after energizing the catalyst reactor thus prepared, 200 ppp of propionic acid was introduced as a deodorizing target gas at a flow rate of 0.2 m 3 / min. The concentration after treatment was 2 ppp. The energization at this time was 100 volts, 6 amperes, and the equilibrium temperature of the heat generating portion was 350 ° C.
なお、図５に示した巻回し張り巡らす方法の他に、図６に示すようなパイプに触媒担持帯状体の配設方法がある。 In addition to the winding method shown in FIG. 5, there is a method for disposing the catalyst-supporting band on the pipe as shown in FIG.
この発明の実施の形態は一つの実施例であり、すべてがこの限りではない。 The embodiment of the present invention is an example, and not all are limited to this.
（１）中空筒体
（２）アルミニウムパイプ
（３）邪魔板
（４）陽極酸化したアルミニウムパイプの部
（５）通電加熱触媒（連続状の通電可能な触媒担持帯状体）
（６）回帰板
（７）電極(電力供給部分
（８）断熱材
（９）処理済ガスの出口
（１０）燃焼ガスの入口
（１１）外筒
（１２）触媒式燃焼装置
(1) hollow cylinder (2) aluminum pipe (3) baffle plate (4) part of anodized aluminum pipe (5) energized heating catalyst (continuous energized catalyst-carrying strip)
(6) Regression plate (7) Electrode (power supply part (8) Insulation (9) Treated gas outlet (10) Combustion gas inlet (11) Outer cylinder (12) Catalytic combustion device
Claims (7)
置、排気ガス浄化装置、燃料電池用燃料改質装置から選択された一つの装置。 A deodorizing apparatus and a VOC decomposing apparatus using the catalytic combustion apparatus defined in claims 1 to 6.
One device selected from a fuel cell, an exhaust gas purification device, and a fuel reformer for a fuel cell.
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| JP2012183467A (en) * | 2011-03-04 | 2012-09-27 | Hideo Kameyama | Method for producing catalyst containing carbon, iron and cerium |
| JP2013521098A (en) * | 2010-03-11 | 2013-06-10 | イー．エム．ダブリュ．エナジー カンパニー リミテッド | Air purification module |
| CN108479386A (en) * | 2018-05-31 | 2018-09-04 | 深圳市中金岭南科技有限公司 | A kind of device and processing method of selectivity heatable catalytic processing exhaust gas |
| CN110617491A (en) * | 2019-09-25 | 2019-12-27 | 万华化学集团股份有限公司 | Tail gas catalytic incineration tower and tail gas treatment method using same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013521098A (en) * | 2010-03-11 | 2013-06-10 | イー．エム．ダブリュ．エナジー カンパニー リミテッド | Air purification module |
| JP2012183467A (en) * | 2011-03-04 | 2012-09-27 | Hideo Kameyama | Method for producing catalyst containing carbon, iron and cerium |
| CN108479386A (en) * | 2018-05-31 | 2018-09-04 | 深圳市中金岭南科技有限公司 | A kind of device and processing method of selectivity heatable catalytic processing exhaust gas |
| CN108479386B (en) * | 2018-05-31 | 2023-12-19 | 深圳市中金岭南科技有限公司 | Device and method for selectively heating and catalyzing waste gas |
| CN110617491A (en) * | 2019-09-25 | 2019-12-27 | 万华化学集团股份有限公司 | Tail gas catalytic incineration tower and tail gas treatment method using same |
| CN110617491B (en) * | 2019-09-25 | 2021-03-09 | 万华化学集团股份有限公司 | Tail gas catalytic incineration tower and tail gas treatment method using same |
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