KR20230082231A - 제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법 및 이에 따라 제조된 촉매 - Google Patents
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법 및 이에 따라 제조된 촉매 Download PDFInfo
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- 239000010457 zeolite Substances 0.000 title claims abstract description 93
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 72
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 69
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- FMQXRRZIHURSLR-UHFFFAOYSA-N dioxido(oxo)silane;nickel(2+) Chemical compound [Ni+2].[O-][Si]([O-])=O FMQXRRZIHURSLR-UHFFFAOYSA-N 0.000 abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 11
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
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- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 2
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- OADDCINVIUHXGF-UHFFFAOYSA-N dialuminum;nickel(2+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Ni+2] OADDCINVIUHXGF-UHFFFAOYSA-N 0.000 description 2
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- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 2
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- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
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- ZSIQJIWKELUFRJ-UHFFFAOYSA-N azepane Chemical compound C1CCCNCC1 ZSIQJIWKELUFRJ-UHFFFAOYSA-N 0.000 description 1
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- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
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- 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
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
- B01J37/105—Hydropyrolysis
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- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
- B01J29/76—Iron group metals or copper
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- 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
- B01J37/16—Reducing
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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Abstract
Description
도 2는 (a) 다른 기간(0-24시간) 동안 190 ℃에서 Ni-MWW의 수열 상호 변환 후 얻은 일련의 고상 생성물에 대한 구조적 영역의 IR 스펙트럼(비교를 위해 Ni/BEA 및 Ni-MWW에 대한 IR 데이터 추가됨), (b) 수열 가열 12시간 후 얻은 Ni-BEA 촉매의 STEM HAADF 및 EDS 원소 매핑 이미지를 나타낸다.
도 3은 Ni-MWW, Ni-BEA, Ni/BEA 및/또는 Ni/γ-Al2O3 촉매의 (a) UV-DRS 스펙트럼, (b) Ni 2p XPS 스펙트럼, (c) 29Si MAS NMR 스펙트럼 및 (d) H2 TPR 곡선(Ni-BEA는 수열 가열 12시간 후에 얻어지는 촉매임)을 나타낸다.
도 4는 700 ℃ 및 30,000 mL gcat -1 h-1 GHSV에서 DRM의 Ni-MWW, Ni-BEA, Ni/γ-Al2O3를 통한 스트림 상의 시간 함수로서 (a) CH4 변환, (b) CO2 변환 및 (c) H2/CO 비율(비교를 위해 환원 전처리 없이 Ni-BEA 및 Ni/γ-Al2O3에 대한 촉매 데이터도 도 4a-4c에 추가됨), 12시간 동안 700 ℃ 및 30,000 mL gcat -1 h-1 GHSV에서 DRM 이후 사용된 Ni-BEA 촉매의 (d) 분말 XRD 패턴, (e) 구조 영역의 IR 스펙트럼 및 (f) STEM HADF 및 EDS 성분 매핑 이미지(금속 니켈의 X-ray 회절 피크는 도 4d에 별표로 표시됨)를 나타내는 도면이다.
Claims (8)
- 붕규산염 MWW 계열 제올라이트 전구체를 수열 처리하여 Ni-MWW 제올라이트를 마련하는 단계; 및
상기 Ni-MWW 제올라이트를 제올라이트간 변환(Interzeolite conversion)에 의해 Ni-BEA 제올라이트로 변환하는 단계;를 포함하는,
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항에 있어서,
상기 Ni-MWW 제올라이트를 제올라이트간 변환(Interzeolite conversion)에 의해 Ni-BEA 제올라이트로 변환하는 단계는,
Ni-MWW 제올라이트와 규소 베타 씨드(Siliceous beta seed)를 혼합하여 혼합물을 마련하는 단계;
상기 혼합물을 수열 처리하여 제올라이트간 변환(Interzeolite conversion)하는 단계; 및
상기 제올라이트간 변환(Interzeolite conversion)한 혼합물을 소결하는 단계;를 포함하는 것을 특징으로 하는
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항에 있어서,
상기 Ni-BEA 제올라이트는 프레임워크 Al 또는 B가 없는 것을 특징으로 하는
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항에 있어서,
상기 Ni-BEA 제올라이트는 프레임워크 Si-O-Ni에 해당하는 1020 cm-1의 대역이 존재하는 것을 특징으로 하는
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항에 있어서,
상기 Ni-BEA 제올라이트는 Ni-MWW 제올라이트보다 니켈(Ni)의 함량이 더 큰 것을 특징으로 하는
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항에 있어서,
상기 Ni-BEA 제올라이트는 각각 1:1 니켈 층상실리케이트 (Ni3(Si2O5)(OH)4)와 2:1 니켈 층상실리케이트 (Ni3(Si2O5)2(OH)2)에 해당하는 두 개의 피크를 갖는 것을 특징으로 하는
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항에 있어서,
상기 Ni-MWW 제올라이트는 H2로 환원 전처리된 것을 특징으로 하는
제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법. - 제1항 내지 제7항 중 어느 한 항의 제올라이트간 변환을 통한 Ni-BEA 제올라이트 촉매의 제조방법에 의해 제조된 Ni-BEA 제올라이트 촉매.
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