KR20170123730A - 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법 및 이에 따라 제조된 세라믹 하니컴 촉매 지지체 - Google Patents
저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법 및 이에 따라 제조된 세라믹 하니컴 촉매 지지체 Download PDFInfo
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- KR20170123730A KR20170123730A KR1020160050245A KR20160050245A KR20170123730A KR 20170123730 A KR20170123730 A KR 20170123730A KR 1020160050245 A KR1020160050245 A KR 1020160050245A KR 20160050245 A KR20160050245 A KR 20160050245A KR 20170123730 A KR20170123730 A KR 20170123730A
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- ceramic honeycomb
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
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- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/16—Clays or other mineral silicates
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- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional [3D] monoliths
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Abstract
Description
도 2 및 도 3은 세라믹 허니컴 촉매 지지체 제조시 소성단계에서 유지시간에 따른 열팽창계수의 변화를 나타낸 그래프이다.
| 소성온도(℃) | 1410 | 1415 | 1420 | 1425 |
| 다공도(%) | 39.11 | 39.45 | 39.87 | 39.25 |
| 수분 흡수도(%) | 25.27 | 25.56 | 26.09 | 25.46 |
| CTE(*10-6/℃) | 0.676 | 0.596 | 0.806 | 0.765 |
| 소성시간(hours) | 4 | 8 | 12 | 16 |
| 다공도(%) | 39.11 | 39.31 | 41.70 | 41.39 |
| 수분 흡수도(%) | 25.27 | 25.39 | 27.97 | 27.69 |
| CTE(*10-6/℃) | 0.676 | 0.717 | 0.491 | 0.690 |
| 소성시간(hours) | 4 | 8 | 12 | 16 |
| 다공도(%) | 39.45 | 39.66 | 39.87 | 40.53 |
| 수분 흡수도(%) | 25.56 | 25.70 | 26.05 | 26.71 |
| CTE(*10-6/℃) | 0.595 | 1.063 | 0.932 | 0.728 |
| 소성 조건 | Indi/cord 비율 | CTE |
| 1410℃에서 4시간 | 32.3/67.7 | 0.676 |
| 1415℃에서 4시간 | 30.6/69.4 | 0.596 |
| 1420℃에서 4시간 | 34.4/65.6 | 0.806 |
| 1410℃에서 12시간 | 24.6/75.4 | 0.491 |
| 1410℃에서 16시간 | 23.2/76.8 | 0.69 |
Claims (4)
- 코디어라이트를 주성분으로 하는 촉매 지지체 성분을 혼합하는 혼합물 제조단계, 성형단계, 가열단계 및 소성단계로 이루어진 세라믹 하니컴 지지체의 제조방법에 있어서,
상기 소성 단계를 소성온도 1408 내지 1412℃에서 10 내지 14시간 동안 수행하거나, 또는 소성온도 1413 내지 1417℃에서 3 내지 5시간 동안 수행하는 것을 특징으로 하는 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법. - 제 1 항에 있어서,
상기 코디어라이트를 주성분으로 하는 촉매 지지체 성분이 코디어라이트 100 중량부에 대하여 흑연 1 내지 2 중량부, 바인더 4 내지 6 중량부, 폴리비닐알코올 1 내지 2 중량부, 트리에틸렌글리콜 0.1 내지 1 중량부 및 윤활오일 0.1 내지 1 중량부인 것을 특징으로 하는 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법. - 제 1 항에 있어서,
상기 성형단계는 상기 혼합물 제조단계를 통해 혼합된 혼합물을 허니컴 구조로 성형하여 이루어지는 것을 특징으로 하는 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법. - 제 1 항에 있어서,
상기 가열단계는 상기 성형단계를 통해 제조된 성형물을 0.87 내지 3℃/min의 승온속도로 상기 소성온도까지 가열하여 이루어지는 것을 특징으로 하는 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020160050245A KR101807833B1 (ko) | 2016-04-25 | 2016-04-25 | 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법 및 이에 따라 제조된 세라믹 하니컴 촉매 지지체 |
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| KR1020160050245A KR101807833B1 (ko) | 2016-04-25 | 2016-04-25 | 저열팽창계수를 가지는 세라믹 하니컴 촉매 지지체의 제조방법 및 이에 따라 제조된 세라믹 하니컴 촉매 지지체 |
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| KR20170123730A true KR20170123730A (ko) | 2017-11-09 |
| KR101807833B1 KR101807833B1 (ko) | 2017-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019212094A1 (ko) * | 2018-05-02 | 2019-11-07 | (주)오앤케이테크 | 다공성 세라믹 발열체 조성물 및 상기 조성물로 제작된 세라믹 발열 구조체 |
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| KR102199010B1 (ko) * | 2018-11-16 | 2021-01-07 | (주) 세라컴 | 열팽창 계수가 개선된 디젤 입자 필터의 제조방법 및 그 제조방법으로 제조된 디젤 입자 필터 |
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| JP2001289041A (ja) | 2000-04-07 | 2001-10-19 | Ibiden Co Ltd | 排ガス浄化用触媒コンバーター及びディーゼルパティキュレートフィルターシステム,並びにこれらの製造方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019212094A1 (ko) * | 2018-05-02 | 2019-11-07 | (주)오앤케이테크 | 다공성 세라믹 발열체 조성물 및 상기 조성물로 제작된 세라믹 발열 구조체 |
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