JP2007536074A - 触媒活性コーティング、および基板上に堆積させる方法 - Google Patents
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 18
- 239000011149 active material Substances 0.000 description 17
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- MNMLSCOPELMVID-UHFFFAOYSA-N [Th].[Ce].[Tb] Chemical compound [Th].[Ce].[Tb] MNMLSCOPELMVID-UHFFFAOYSA-N 0.000 description 1
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- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical class [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
- F23C13/08—Apparatus in which combustion takes place in the presence of catalytic material characterised by the catalytic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0225—Coating of metal substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0244—Coatings comprising several layers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
従来のガスタービンの作動では、大気からの吸気がコンプレッサによって圧縮、加熱され、燃焼器へ流される。この燃焼器において、燃料と圧縮された空気とが混合され、混合気は点火および燃焼される。このようにして放出される熱エネルギーは、燃焼ガスを流れてタービンに到達し、そこで機械的な回転エネルギーに変換されて、たとえば電気力を生成するための装置または工業プロセスを行うための装置等の装置を駆動するのに使用される。リーン状態の前混合された燃料の完全な燃焼を促進し、ひいては不所望の排ガスを低減するために、燃焼ゾーンにおいて燃焼触媒を使用することが公知である。炭化水素燃料‐酸素の反応を行うための典型的な燃焼触媒にはたとえば、白金、パラジウム、ロジウム、イリジウム、テルビウム‐セリウム‐トリウム、ルテニウム、オスミウム、クロムの酸化物、鉄の酸化物、コバルトの酸化物、ランタンの酸化物、ニッケルの酸化物、マグネシウムの酸化物および銅の酸化物が含まれる。
本発明のこれらの利点および別の利点を、以下の詳細な説明において図面に基づいて詳述する。
図1 従来技術の燃焼器の断面の一例である。
図2 基板およびコーティング例の断面の一部である。
図3 触媒燃焼中の温度プロフィールを示すグラフである。
図4 図2の基板の平面図である。
図5 図4の基板の一部である。
図1に、ガスタービン燃焼器10の一例が示されている。ここでは、燃焼の少なくとも一部は触媒反応器12で行われるように構成されている。
1)還元された状態に固有の貴金属触媒燃焼
2)酸化された状態に固有の貴金属触媒燃焼
3)堆積中に形成される貴金属の酸化物とTBC組成物の酸化物との混合物の新たに形成された相に固有の混合酸化物触媒燃焼
4)TBC組成物に固有のTBC酸化物触媒燃焼
5)多重の堆積相互作用の組み合わせから得られる多重的な相に起因する触媒燃焼、すなわち、ここに記載された1)〜4)の組み合わせから得られる多重的な相に起因する触媒燃焼。
Claims (22)
- 触媒反応性コーティングを基板に堆積させる方法において、
所定の触媒燃焼環境に関して、目標着火温度を選択するステップと、
TBC組成物を選定するステップと、
触媒材料を選定するステップと、
該TBC組成物と触媒材料とを該基板上に、該燃焼環境にさらされた場合に目標着火温度をもたらすために選択された比で同時堆積させるステップと
を有することを特徴とする方法。 - さらに、前記TBC組成物および触媒材料のうち少なくとも一方の所望の第1の部分が酸化されるように、同時堆積させる前記ステップを制御する、請求項1記載の方法。
- さらに、前記TBC組成物が前記触媒材料と相互作用して、該TBC組成物および触媒材料のそれぞれの着火温度と異なる着火温度を有する相が形成されるように、同時堆積させる前記ステップを制御する、請求項1記載の方法。
- さらに、第1の表面積割合の前記TBC組成物と、第2の表面積割合の前記触媒材料とが堆積するように、同時堆積させる前記ステップを制御する、請求項1記載の方法。
- 前記TBC組成物の第1の質量割合は実質的に、前記TBC組成物の第1の表面積割合に等しく、
前記触媒材料の第2の質量割合は実質的に、前記触媒材料の第2の表面積割合に等しい、請求項4記載の方法。 - 前記基板はセラミック材料を含む、請求項1記載の方法。
- 燃焼環境で使用するための触媒活性コーティングにおいて、
第1の着火温度を有するTBC組成物と、第2の着火温度を有する触媒材料とを含む第1の層を備えており、
該TBC組成物と触媒材料とは、基板上に同時堆積されていることを特徴とする、触媒活性コーティング。 - 前記TBC組成物および触媒材料のうち少なくとも一方の一部は酸化された状態にあり、これによって、前記第1の着火温度または第2の着火温度と異なる第3の着火温度が得られる、請求項7記載の触媒活性コーティング。
- さらに、TBC組成物を含み同時堆積された触媒材料を含まない第2の層が、前記基板と第1の層との間に挿入されている、請求項7記載の触媒活性コーティング。
- 前記第1の層はさらに、前記基板の長さにわたって、前記TBC組成物と触媒材料との表面積の相対的なパーセンテージの勾配を有する、請求項7記載の触媒活性コーティング。
- 前記TBC組成物はイットリウム安定化ジルコニアを含み、
前記触媒材料は貴金属を含む、請求項7記載の触媒活性コーティング。 - 前記第1の層はさらに、酸化された状態の前記TBC組成物および触媒材料のうち少なくとも1つを含み、
該TBC組成物および触媒材料のうち少なくとも1つは、第3の着火温度を有する、請求項7記載の触媒活性コーティング。 - 触媒エレメントにおいて、
基板と、第1の層とを有し、
該第1の層は、該基板の第1の部分上に配置された該第1の層の深さにわたって、TBC組成物および触媒材料を含むことを特徴とする、触媒エレメント。 - 触媒材料から成る第2の層がさらに、前記基板の第2の部分上に配置されている、請求項13記載の触媒エレメント。
- TBC組成物から成る第3の層がさらに、前記基板の第3の部分上に配置されている、請求項14記載の触媒エレメント。
- 前記第1の層はさらに、前記基板の第1の部分の長さにわたって配置された前記TBC組成物および触媒材料のそれぞれの表面積のパーセンテージの勾配を有する、請求項13記載の触媒エレメント。
- 前記第1の層はさらに、500〜800℃の間の燃焼のステージで使用するための着火温度を有する酸化された触媒材料の相を有する、請求項13記載の触媒エレメント。
- 前記第1の層はさらに、約500〜800℃の間の燃焼のステージで使用するための着火温度を有する酸化されたTBC組成物の相を有する、請求項13記載の触媒エレメント。
- 前記第1の層はさらに、前記TBC組成物および触媒材料のそれぞれの着火温度と異なる着火温度を有するTBC組成物の酸化物と触媒材料の酸化物とを含む混合酸化物相を有する、請求項13記載の触媒エレメント。
- 前記第1の層ではさらに、該第1の層の厚さにわたって前記触媒材料のパーセンテージが変化する、請求項13記載の触媒エレメント。
- さらに、同時堆積された触媒材料を含まないTBC組成物層が、前記基板と第1の層との間に配置されている、請求項13記載の触媒エレメント。
- 前記TBC組成物はイットリウム安定化ジルコニアを含み、
前記触媒材料は貴金属を含む、請求項13記載の触媒エレメント。
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US10/839,090 US7531479B2 (en) | 2004-05-05 | 2004-05-05 | Catalytically active coating and method of depositing on a substrate |
PCT/US2005/015196 WO2005120685A2 (en) | 2004-05-05 | 2005-05-03 | Catalytically active coating and method of depositing on a substrate |
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US (1) | US7531479B2 (ja) |
EP (2) | EP2614885A1 (ja) |
JP (1) | JP2007536074A (ja) |
CA (1) | CA2565673C (ja) |
WO (1) | WO2005120685A2 (ja) |
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US20060078479A1 (en) * | 2004-10-07 | 2006-04-13 | Caterpillar Inc. | Filter assembly for an exhaust treatment device |
US8067332B2 (en) * | 2006-05-03 | 2011-11-29 | Samsung Sdi Co., Ltd. | Methanation catalyst, and carbon monoxide removing system, fuel processor, and fuel cell including the same |
US8381531B2 (en) * | 2008-11-07 | 2013-02-26 | Solar Turbines Inc. | Gas turbine fuel injector with a rich catalyst |
US8316647B2 (en) * | 2009-01-19 | 2012-11-27 | General Electric Company | System and method employing catalytic reactor coatings |
US9291082B2 (en) | 2012-09-26 | 2016-03-22 | General Electric Company | System and method of a catalytic reactor having multiple sacrificial coatings |
WO2015077163A1 (en) * | 2013-11-19 | 2015-05-28 | United Technologies Corporation | Article having variable composition coating |
US10428727B2 (en) | 2017-04-14 | 2019-10-01 | Ford Motor Company | Bonding strength enhancement for ceramic coating on high temperature alloy |
Citations (9)
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Also Published As
Publication number | Publication date |
---|---|
EP1750830A4 (en) | 2010-09-29 |
CA2565673A1 (en) | 2005-12-22 |
US20050250643A1 (en) | 2005-11-10 |
WO2005120685A2 (en) | 2005-12-22 |
WO2005120685A3 (en) | 2007-01-18 |
EP2614885A1 (en) | 2013-07-17 |
US7531479B2 (en) | 2009-05-12 |
EP1750830A2 (en) | 2007-02-14 |
CA2565673C (en) | 2013-12-03 |
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