JP2003081687A - Gas ignition method - Google Patents
Gas ignition methodInfo
- Publication number
- JP2003081687A JP2003081687A JP2001274170A JP2001274170A JP2003081687A JP 2003081687 A JP2003081687 A JP 2003081687A JP 2001274170 A JP2001274170 A JP 2001274170A JP 2001274170 A JP2001274170 A JP 2001274170A JP 2003081687 A JP2003081687 A JP 2003081687A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- gas
- ignition method
- combustion
- combustible 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
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003054 catalyst Substances 0.000 claims abstract description 67
- 238000002485 combustion reaction Methods 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 32
- 229910002091 carbon monoxide Inorganic materials 0.000 description 32
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 15
- 239000000446 fuel Substances 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011164 primary particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 101000666657 Homo sapiens Rho-related GTP-binding protein RhoQ Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 102100038339 Rho-related GTP-binding protein RhoQ Human genes 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- IXSUHTFXKKBBJP-UHFFFAOYSA-L azanide;platinum(2+);dinitrite Chemical compound [NH2-].[NH2-].[Pt+2].[O-]N=O.[O-]N=O IXSUHTFXKKBBJP-UHFFFAOYSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- VZJJZMXEQNFTLL-UHFFFAOYSA-N chloro hypochlorite;zirconium;octahydrate Chemical compound O.O.O.O.O.O.O.O.[Zr].ClOCl VZJJZMXEQNFTLL-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Catalysts (AREA)
- Fuel Cell (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車等に搭載さ
れる燃料電池に適用して有効なガス着火方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas ignition method effective when applied to a fuel cell mounted on an automobile or the like.
【０００２】[0002]
【従来の技術】最近、地球環境保護の観点から、電気エ
ネルギーを効率的かつクリーンに生産する方法として燃
料電池が注目されている。とりわけ、自動車等では内燃
機関から排出される排気ガスに窒素酸化物や一酸化炭素
等の有害ガスが多く含まれるため、種々の対策がなされ
ている。従来、その一例として固体高分子型燃料電池
（ＰＥＦＣ）を搭載した自動車の開発がなされている。2. Description of the Related Art Recently, fuel cells have been attracting attention as a method for efficiently and cleanly producing electric energy from the viewpoint of protecting the global environment. In particular, in automobiles and the like, exhaust gas emitted from an internal combustion engine contains many harmful gases such as nitrogen oxides and carbon monoxide, and therefore various measures have been taken. Conventionally, as one example thereof, a vehicle equipped with a polymer electrolyte fuel cell (PEFC) has been developed.
【０００３】ところで、こうした燃料電池において燃料
ガスとして使用される水素（Ｈ２）は、一般に図１のよ
うなシステムにより供給されている。図中の符番１は熱
交換器を示す。この熱交換器１にはメタノール、起動時
のウォームアップ用ＰＯｘバーナーの排ガスとしてＣＯ
を含む合成ガス（例えばＨ２／ＣＯ）或いは燃料電池で
未消費のガス（例えばＨ２／ＣＯ２）又は補助ガスとし
て水素（Ｈ２）が供給され、熱交換器１に配置された通
常のＰｔを触媒成分とする燃焼触媒により、例えば下記
式（１）に示すように燃焼が行われる。その結果、熱交
換器１に接続されたメタノール改質器２にはメタノール
蒸気が送られ、ここで下記式（２）の反応が行われて水
素が生成される。そして水素は燃料電池３の燃料ガスと
して用いられる。燃料電池３には、図示しないが自動車
等の駆動源に接続されている。なお、自動車では、エン
ジンをかけるときｏｆｆ ｇａｓが発生する。また、前
記燃料電池３で使用しなかった残りの水素はＣＯ２は、
Ｈ２／ＣＯとして前記熱交換器１に戻すことにより、再
利用することができる。
ＣＨ３ＯＨ ＋ 1/2Ｏ２ → ＣＯ ＋ Ｈ２Ｏ ＋Ｈ２ …（１）
ＣＨ３ＯＨ ＋ Ｈ２Ｏ →Ｈ２Ｏ ＋ ｅ …（２）By the way, hydrogen (H 2 ) used as a fuel gas in such a fuel cell is generally supplied by a system as shown in FIG. Reference numeral 1 in the figure indicates a heat exchanger. This heat exchanger 1 is methanol, and CO is used as the exhaust gas of the warm-up POx burner at startup.
A syngas (eg, H 2 / CO) containing hydrogen, or a gas not consumed in the fuel cell (eg, H 2 / CO 2 ) or hydrogen (H 2 ) as an auxiliary gas is supplied and placed in the heat exchanger 1. Combustion is carried out by a combustion catalyst containing Pt as a catalyst component, for example, as shown in the following formula (1). As a result, methanol vapor is sent to the methanol reformer 2 connected to the heat exchanger 1, where the reaction of the following formula (2) is performed to generate hydrogen. Then, hydrogen is used as a fuel gas for the fuel cell 3. Although not shown, the fuel cell 3 is connected to a drive source such as an automobile. In a car, off gas is generated when the engine is started. The remaining hydrogen not used in the fuel cell 3 is CO 2 .
It can be reused by returning it to the heat exchanger 1 as H 2 / CO. CH 3 OH + 1 / 2O 2 → CO + H 2 O + H 2 (1) CH 3 OH + H 2 O → H 2 O + e (2)
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
場合、メタノールあるいは一酸化炭素（ＣＯ）を含有す
る合成ガスを通常のＰｔを触媒成分とする燃焼触媒に流
通させた場合、ＰｔがＣＯにより被毒されやすい（Ｐｔ
へのＣＯの吸着阻害）により着火性が低下するという問
題があった。However, in the conventional case, when a synthesis gas containing methanol or carbon monoxide (CO) is passed through a combustion catalyst containing Pt as a catalyst component, Pt is covered by CO. Easily poisoned (Pt
There is a problem in that the ignitability is deteriorated due to the inhibition of CO adsorption to the).
【０００５】本発明は上記事情を考慮してなされたもの
で、燃焼触媒を用いてＣＯを含む可燃性ガスを着火させ
るガス着火方法において、前記燃焼触媒は触媒成分とし
てＰｄＯとＰｔを含むとともに、前記可燃性ガスはその
ＣＯ含有濃度が５％を超える可燃性ガスとすることによ
り、低温ですみやかにかつ安定して着火しえるガス着火
方法を提供することを目的とする。The present invention has been made in view of the above circumstances, and in a gas ignition method for igniting a combustible gas containing CO using a combustion catalyst, the combustion catalyst contains PdO and Pt as catalyst components, and An object of the present invention is to provide a gas ignition method capable of igniting promptly and stably at low temperature by making the combustible gas a CO content concentration of which exceeds 5%.
【０００６】また、本発明は、燃焼触媒を用いてＣＯを
含む可燃性ガスを着火させるガス着火方法において、前
記燃焼触媒は触媒成分としてＰｄＯとＰｔを含むととも
に、その触媒温度が５０℃以上に加熱され、前記可燃性
ガスはそのＣＯ含有濃度が０％以上５％以下であること
により、すみやかにかつ安定して着火しえるガス着火方
法を提供することを目的とする。The present invention also provides a gas ignition method for igniting a combustible gas containing CO using a combustion catalyst, wherein the combustion catalyst contains PdO and Pt as catalyst components, and the catalyst temperature is 50 ° C. or higher. It is an object of the present invention to provide a gas ignition method in which the combustible gas is heated and has a CO content concentration of 0% or more and 5% or less so that the combustible gas can ignite promptly and stably.
【０００７】[0007]
【課題を解決するための手段】本願第１の発明は、燃焼
触媒を用いて、ＣＯを含む可燃性ガスを着火させるガス
着火方法において、前記燃焼触媒は、触媒成分としてＰ
ｄＯとＰｔを含むとともに、前記可燃性ガスは、そのＣ
Ｏ含有濃度が５％を超える可燃性ガスであることを特徴
とするガス着火方法である。The first invention of the present application is a gas ignition method of igniting a combustible gas containing CO by using a combustion catalyst, wherein the combustion catalyst is P as a catalyst component.
In addition to containing dO and Pt, the flammable gas contains C
The gas ignition method is characterized in that it is a flammable gas having an O content concentration exceeding 5%.
【０００８】本願第２の発明は、燃焼触媒を用いて、Ｃ
Ｏを含む可燃性ガスを着火させるガス着火方法におい
て、前記燃焼触媒は、触媒成分としてＰｄＯとＰｔを含
むとともに、その触媒温度が５０℃以上に加熱され、前
記可燃性ガスは、そのＣＯ含有濃度が０％以上５％以下
であることを特徴とするガス着火方法である。A second invention of the present application uses a combustion catalyst to produce C
In the gas ignition method of igniting a combustible gas containing O, the combustion catalyst contains PdO and Pt as catalyst components, and the catalyst temperature is heated to 50 ° C. or higher, and the combustible gas has a CO-containing concentration. Is 0% or more and 5% or less, which is a gas ignition method.
【０００９】[0009]
【発明の実施の形態】以下、本発明の燃焼触媒による低
温着火方法について更に詳しく説明する。本発明におい
て、触媒成分としてＰｄＯとＰｔを用いるのは、Ｐｄが
ＣＯの燃焼に活性を示すとともに、ＰｔがＨ２の燃焼に
高活性を示し、ＣＯを含む可燃性ガスの燃焼安定性が増
すからである。BEST MODE FOR CARRYING OUT THE INVENTION The low temperature ignition method using the combustion catalyst of the present invention will be described in more detail below. In the present invention, PdO and Pt are used as the catalyst components because Pd is active in the combustion of CO and Pt is highly active in the combustion of H 2 , and the combustion stability of combustible gas containing CO is increased. Because.
【００１０】本発明において、燃焼触媒が担持する担体
の比表面積は１０ｍ２／ｇ以上であることが好ましい。
例えば、アルミナが担体とすれば、（Ｐｔ＋Ｐｄ）／ア
ルミナの比表面積≧１０ｍ２／ｇとする。この理由は、
比表面積が１０ｍ２／ｇ未満である場合、触媒成分であ
るＰｔ及びＰｄの一次粒子径を１００ｎｍ以下にするこ
とが困難となるからである。In the present invention, the specific surface area of the carrier carried by the combustion catalyst is preferably 10 m 2 / g or more.
For example, if alumina is used as the carrier, the specific surface area of (Pt + Pd) / alumina ≧ 10 m 2 / g. The reason for this is
This is because when the specific surface area is less than 10 m 2 / g, it becomes difficult to make the primary particle diameter of Pt and Pd which are the catalyst components 100 nm or less.
【００１１】本発明において、前記燃焼触媒の粒径は１
００ｎｍ以下であることが好ましく、より好ましくは１
０ｎｍ以下とする。これは、触媒成分の１次粒径が１０
０ｎｍを超えると、触媒単位体積当たりの反応量が少な
くなり燃焼反応が維持できなくなり、蒸発器として機能
しなくなるからである。In the present invention, the particle size of the combustion catalyst is 1
It is preferably 00 nm or less, more preferably 1
It is set to 0 nm or less. This is because the primary particle size of the catalyst component is 10
This is because if it exceeds 0 nm, the reaction amount per unit volume of the catalyst becomes small, the combustion reaction cannot be maintained, and the evaporator does not function.
【００１２】本発明において、前記燃焼触媒の担体への
担持方法は、特に限定されるものではなく、通常の浸漬
法、沈殿法等により調製することができる。In the present invention, the method of supporting the combustion catalyst on the carrier is not particularly limited, and it can be prepared by a usual dipping method, precipitation method or the like.
【００１３】本発明において、ＣＯ濃度が０％以上５％
以下の場合、ＣＯの触媒成分への吸着被覆が起こり、燃
焼性を低下させるので、触媒温度を５０℃以上に加熱し
て吸着ＣＯを除去することを行う。ここで、加熱手段と
しては、例えば電気ヒータ等で触媒を加熱する方法、あ
るいはＣＯを含まないＨ２含有ガスを補助的に流通させ
て着火させ、触媒を加熱する方法が挙げられる。このよ
うに、燃焼初期時（駆動時）のみＨ２を用いて燃焼する
ことにより、ＣＯ濃度が０％以上５％以下の場合でも、
触媒を安定軌道させることができる。In the present invention, the CO concentration is 0% or more and 5% or more.
In the following cases, CO is adsorbed and coated on the catalyst component to lower the combustibility, and therefore the catalyst temperature is heated to 50 ° C. or higher to remove the adsorbed CO. Here, as the heating means, for example, a method of heating the catalyst with an electric heater or the like, or a method of supplementarily circulating an H 2 -containing gas containing no CO to ignite the catalyst to heat the catalyst can be mentioned. Thus, by burning with H 2 only at the initial stage of combustion (during driving), even when the CO concentration is 0% or more and 5% or less,
The catalyst can orbit stably.
【００１４】[0014]
【実施例】以下、本発明の実施例について説明する。な
お、下記実施例で述べる材料や数値等は一例を示すもの
で、本発明の権利範囲はこれにより限定されるものでは
ない。EXAMPLES Examples of the present invention will be described below. Note that the materials, numerical values, etc. described in the following examples are merely examples, and the scope of rights of the present invention is not limited thereby.
【００１５】［触媒の調製方法］
１）担体調製
まず、オキシ塩化ジルコニウム８水和物（ＺｒＯＣｌ２
・８Ｈ２Ｏ、Ｍｗ＝３２２．２）１０６ｇをイオン交換
水に溶解させ、ｐＨ＝２になるようにイオン交換水を加
えた。次に、γ−アルミナ（Ａｌ２Ｏ３、Ｍｗ＝１０
２）３６５ｇを加え、３時間攪拌した後、アンモニア水
をｐＨ＝９になるまで滴下した。つづいて、１時間その
まま攪拌した後、沈殿物をろ過、洗浄した。更に、乾燥
器で一昼夜乾燥した後、電気炉で５００℃、５時間焼成
してＺｒＯ２−Ａｌ２Ｏ３担体（ＺｒＯ２：Ａｌ２Ｏ３
＝１０：９０（重量比））を調製した。[Catalyst Preparation Method] 1) Preparation of Support First, zirconium oxychloride octahydrate (ZrOCl 2
· 8H 2 O, Mw = 322.2 ) 106g was dissolved in ion-exchanged water, ion-exchanged water was added so that pH = 2. Next, γ-alumina (Al 2 O 3 , Mw = 10)
2) 365 g was added, the mixture was stirred for 3 hours, and aqueous ammonia was added dropwise until the pH = 9. Then, after stirring for 1 hour as it was, the precipitate was filtered and washed. Further, after being dried for one day in a dryer, it is fired in an electric furnace at 500 ° C. for 5 hours to be ZrO 2 —Al 2 O 3 carrier (ZrO 2 : Al 2 O 3).
= 10: 90 (weight ratio)) was prepared.
【００１６】２）触媒調製
上記１）で調製した担体１００ｇを硝酸パラジウム（Ｐ
ｄ（ＮＯ３）２、Ｍｗ＝２３０．４）、及びジニトロジ
アンミン白金（Ｐｔ（ＮＯ２）２（ＮＨ３）２、Ｍｗ＝
３２１．０）硝酸溶液に浸漬、１２０℃で乾燥、５００
℃で５時間焼成し、ＰｄＯ１１．５ｗｔ％及びＰｔ５ｗ
ｔ％坦持した触媒を調製した。2) Preparation of catalyst 100 g of the carrier prepared in the above 1) was added to palladium nitrate (P
d (NO 3) 2, Mw = 230.4), and dinitrodiammine platinum (Pt (NO 2) 2 ( NH 3) 2, Mw =
321.0) Immerse in nitric acid solution, dry at 120 ° C, 500
Calcination at ℃ for 5 hours, PdO11.5wt% and Pt5w
A t% supported catalyst was prepared.
【００１７】下記表1は、各触媒の組成、触媒成分、担
体の比表面積、触媒成分の一次粒径を示す。Table 1 below shows the composition of each catalyst, the catalyst component, the specific surface area of the carrier, and the primary particle size of the catalyst component.
【００１８】[0018]
【表１】 [Table 1]
【００１９】次に、固定床流式リアクタを用いて上記表
１に示す触媒について下記表２に示す反応条件及び下記
表３に示すガス組成にて着火性評価を行った。Next, using a fixed bed flow type reactor, the catalysts shown in Table 1 above were evaluated for ignitability under the reaction conditions shown in Table 2 below and the gas composition shown in Table 3 below.
【００２０】[0020]
【表２】 [Table 2]
【００２１】[0021]
【表３】 [Table 3]
【００２２】次に、触媒層に空気を流通した状態で上記
ケース１〜３までのガスを夫々流通させ、着火の有無を
評価した。その評価は、下記表４に示すとおりである。Next, the presence or absence of ignition was evaluated by circulating the gases in Cases 1 to 3 while circulating air in the catalyst layer. The evaluation is as shown in Table 4 below.
【００２３】[0023]
【表４】 [Table 4]
【００２４】表４より、触媒１及び触媒２はＣＯ５％含
有ガスでも着火を確認したが、ＣＯを３％含むケース３
では非着火であった。また、ケース３のガスを流通させ
触媒の非着火を確認した後でケース１のガスを流通させ
た場合、及び触媒層をヒータにより加熱した場合の着火
の有無を評価したところ、下記表５および表６に示す結
果が得られた。From Table 4, it was confirmed that the catalyst 1 and the catalyst 2 were ignited even in the gas containing 5% of CO, but the case 3 containing 3% of CO
Then it was non-ignition. In addition, when the gas of Case 1 was circulated after the gas of Case 3 was circulated and the non-ignition of the catalyst was confirmed, and the presence or absence of ignition when the catalyst layer was heated by a heater was evaluated, the following Table 5 and The results shown in Table 6 were obtained.
【００２５】[0025]
【表５】 [Table 5]
【００２６】[0026]
【表６】 [Table 6]
【００２７】表５，表６より、触媒１及び触媒２につい
てはＣＯを含まないＨ２含有ガスを補助的に流通させ、
着火させ触媒を加熱するか、ヒータ等で触媒を加熱する
ことで、ＣＯを５％以下含む通常着火が困難な場合でも
安定着火できる結果を得た。From Tables 5 and 6, for catalyst 1 and catalyst 2, an H 2 -containing gas containing no CO was supplementarily circulated,
By igniting and heating the catalyst, or by heating the catalyst with a heater or the like, stable ignition was obtained even when normal ignition containing 5% or less of CO was difficult.
【００２８】[0028]
【発明の効果】以上詳述したように本発明によれば、燃
焼触媒を用いてＣＯを含む可燃性ガスを着火させるガス
着火方法において、前記燃焼触媒は触媒成分としてＰｄ
ＯとＰｔを含むとともに、前記可燃性ガスはそのＣＯ含
有濃度が５％を超える可燃性ガスとすることにより、低
温ですみやかにかつ安定して着火しえるガス着火方法を
提供できる。As described above in detail, according to the present invention, in the gas ignition method of igniting a combustible gas containing CO by using a combustion catalyst, the combustion catalyst contains Pd as a catalyst component.
By including O and Pt and making the combustible gas a CO content concentration of which exceeds 5%, it is possible to provide a gas ignition method capable of promptly and stably igniting at a low temperature.
【００２９】また、本発明によれば、燃焼触媒を用いて
ＣＯを含む可燃性ガスを着火させるガス着火方法におい
て、前記燃焼触媒は触媒成分としてＰｄＯとＰｔを含む
とともに、その触媒温度が５０℃以上に加熱され、前記
可燃性ガスはそのＣＯ含有濃度が０％以上５％以下であ
ることにより、すみやかにかつ安定して着火しえるガス
着火方法を提供できる。Further, according to the present invention, in the gas ignition method of igniting a combustible gas containing CO by using a combustion catalyst, the combustion catalyst contains PdO and Pt as catalyst components and the catalyst temperature is 50 ° C. When the flammable gas is heated as described above and has a CO content concentration of 0% or more and 5% or less, it is possible to provide a gas ignition method capable of promptly and stably igniting.
【図１】燃料ガスである水素を燃料電池に供給する場合
のシステムの説明図。FIG. 1 is an explanatory diagram of a system when hydrogen, which is a fuel gas, is supplied to a fuel cell.
１…熱交換器、 ２…メタノール改質器、 ３…燃料電池。 1 ... heat exchanger, 2 ... Methanol reformer, 3 ... Fuel cell.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 米村 将直 広島県広島市西区観音新町四丁目６番22号 三菱重工業株式会社広島研究所内 (72)発明者 吉田 博久 広島県広島市西区観音新町四丁目６番22号 三菱重工業株式会社広島研究所内 Ｆターム(参考） 3K065 TA13 TB01 TB06 TB07 TB11 TC10 TD05 TE06 TF04 TH02 TK02 TK04 TK05 TP08 4G069 AA03 AA08 BA01B BA05B BB04A BB04B BC72A BC72B BC75A BC75B CD01 DA05 EA01X EA01Y EB18X EB18Y EC01X EC03Y 5H027 AA02 BA19 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Masanao Yonemura 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries Ltd. Hiroshima Research Center (72) Inventor Hirohisa Yoshida 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries Ltd. Hiroshima Research Center F term (reference) 3K065 TA13 TB01 TB06 TB07 TB11 TC10 TD05 TE06 TF04 TH02 TK02 TK04 TK05 TP08 4G069 AA03 AA08 BA01B BA05B BB04A BB04B BC72A BC72B BC75A BC75B CD01 DA05 EA01X EA01Y EB18X EB18Y EC01X EC03Y 5H027 AA02 BA19
Claims (5)
スを着火させるガス着火方法において、 前記燃焼触媒は、触媒成分としてＰｄＯとＰｔを含むと
ともに、前記可燃性ガスは、そのＣＯ含有濃度が５％を
超える可燃性ガスであることを特徴とするガス着火方
法。1. A gas ignition method for igniting a combustible gas containing CO using a combustion catalyst, wherein the combustion catalyst contains PdO and Pt as catalyst components, and the combustible gas has a CO content concentration thereof. Is a combustible gas exceeding 5%, and a gas ignition method.
スを着火させるガス着火方法において、 前記燃焼触媒は、触媒成分としてＰｄＯとＰｔを含むと
ともに、その触媒温度が５０℃以上に加熱され、前記可
燃性ガスは、そのＣＯ含有濃度が０％以上５％以下であ
ることを特徴とするガス着火方法。2. A gas ignition method for igniting a combustible gas containing CO using a combustion catalyst, wherein the combustion catalyst contains PdO and Pt as catalyst components, and the catalyst temperature is heated to 50 ° C. or higher. The flammable gas has a CO content concentration of 0% or more and 5% or less, and a gas ignition method.
とを特徴とする請求項１または請求項２に記載のガス着
火方法。3. The gas ignition method according to claim 1, wherein H 2 is used for combustion only when combustion is started.
２／ｇ以上であることを特徴とする請求項１乃至請求項
３のいずれかに記載のガス着火方法。4. The specific surface area of the carrier of the combustion catalyst is 10 m.
It is 2 / g or more, The gas ignition method in any one of Claim 1 thru | or 3 characterized by the above-mentioned.
あることを特徴とする請求項１乃至請求項４のいずれか
に記載のガス着火方法。5. The gas ignition method according to claim 1, wherein a particle size of the combustion catalyst is 100 nm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001274170A JP2003081687A (en) | 2001-09-10 | 2001-09-10 | Gas ignition method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001274170A JP2003081687A (en) | 2001-09-10 | 2001-09-10 | Gas ignition method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003081687A true JP2003081687A (en) | 2003-03-19 |
Family
ID=19099265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001274170A Pending JP2003081687A (en) | 2001-09-10 | 2001-09-10 | Gas ignition method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003081687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007005031A (en) * | 2005-06-21 | 2007-01-11 | Mitsubishi Heavy Ind Ltd | Catalyst for fuel gas combustion, fuel cell system, and combustion method of fuel gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61186704A (en) * | 1985-02-15 | 1986-08-20 | Babcock Hitachi Kk | Catalytic burning process |
| JPS63209751A (en) * | 1987-02-26 | 1988-08-31 | Tanaka Kikinzoku Kogyo Kk | Production of oxidation catalyst |
| JPH05285387A (en) * | 1992-04-13 | 1993-11-02 | Hitachi Ltd | Catalyst for purification of exhaust gas and purification method |
| JP2002113363A (en) * | 2000-10-10 | 2002-04-16 | Mitsubishi Heavy Ind Ltd | Low-temperature oxidizing catalyst |
-
2001
- 2001-09-10 JP JP2001274170A patent/JP2003081687A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61186704A (en) * | 1985-02-15 | 1986-08-20 | Babcock Hitachi Kk | Catalytic burning process |
| JPS63209751A (en) * | 1987-02-26 | 1988-08-31 | Tanaka Kikinzoku Kogyo Kk | Production of oxidation catalyst |
| JPH05285387A (en) * | 1992-04-13 | 1993-11-02 | Hitachi Ltd | Catalyst for purification of exhaust gas and purification method |
| JP2002113363A (en) * | 2000-10-10 | 2002-04-16 | Mitsubishi Heavy Ind Ltd | Low-temperature oxidizing catalyst |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007005031A (en) * | 2005-06-21 | 2007-01-11 | Mitsubishi Heavy Ind Ltd | Catalyst for fuel gas combustion, fuel cell system, and combustion method of fuel gas |
| JP4699101B2 (en) * | 2005-06-21 | 2011-06-08 | 三菱重工業株式会社 | Fuel gas combustion catalyst, fuel cell system, and fuel gas combustion method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0960649B1 (en) | Exhaust gas clean-up catalyst | |
| JP3743995B2 (en) | Methanol reforming catalyst | |
| US7131264B2 (en) | Method of operating a reformer and a vehicle | |
| PT808209E (en) | CATALYST | |
| JP2015502474A (en) | Reducing emissions from mobile pollution sources by on-board carbon dioxide conversion to fuel | |
| JP3715482B2 (en) | Carbon monoxide selective oxidation catalyst in hydrogen-containing gas, carbon monoxide removal method using the catalyst, and solid polymer electrolyte fuel cell system | |
| CN111939898B (en) | Methanol fuel automobile tail gas purifying catalyst and preparation method thereof | |
| CN1309745A (en) | Method for treating by combustino carbon-contg. particles in IC engine exhaust circuit | |
| JP2014030778A (en) | Fuel reforming catalyst | |
| JP2003081687A (en) | Gas ignition method | |
| JP2001347167A (en) | Exhaust gas cleaning catalyst | |
| JP6198032B2 (en) | HYDROGEN GENERATION CATALYST AND SYSTEM USING HYDROGEN GENERATION CATALYST | |
| JP5494910B2 (en) | Hydrogen production catalyst and production method thereof | |
| JPS61252409A (en) | Method of igniting methane fuel | |
| JP2014057947A (en) | Hydrogen generation catalyst, method for producing hydrogen generation catalyst and system using hydrogen generation catalyst | |
| JP2002126522A (en) | Hydrocarbon reforming catalyst | |
| JP4959047B2 (en) | Low temperature oxidation catalyst | |
| JPS60205116A (en) | Combustion catalyst system and combustion therewith | |
| JP2013144266A (en) | Fuel reforming catalyst and method for production thereof | |
| JPH07127447A (en) | Heating method for exhaust gas emission control catalyst converter | |
| JP2003247420A (en) | Unfired heat recovery method and unfired heat device of gas fired prime mover | |
| JP4250971B2 (en) | Inorganic material and shift catalyst using the same | |
| JP2005337133A (en) | Method and system for exhaust gas control in internal combustion engine | |
| JP2002121007A (en) | Hydrogen generating device | |
| JPS60205129A (en) | Combustor for gas-turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080908 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20080909 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20090324 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110125 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20111004 |