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    • 1. 发明授权
    • 고분산 귀금속 담지 하이브리드형 분자체 탈질촉매의제조방법
    • 고분산귀금속담지하이브드드형자자체탈질촉매의제조방
    • KR100371089B1
    • 2003-02-06
    • KR1020000061714
    • 2000-10-19
    • 한국화학연구원한국가스공사
    • 박상언이철위박중남송인표최동수박달령
    • B01J37/30B01J37/08
    • PURPOSE: Provided is a hybrid molecular sieve DeNOx catalyst containing highly dispersed noble metals, which show excellent poisoning resistance even in the coexistence of moisture, CO2, and SO2, therefore it is applicable to gas emission purification in gas turbine, boiler, and mobile air pollution sources such as lean burn vehicles. CONSTITUTION: In the manufacture process of DeNOx catalyst by supporting silica or H-beta zeolite with noble metals, the method of preparing a hybrid molecular sieve DeNOx catalyst containing highly dispersed noble metals includes the steps of (i) supporting a composite substrate with 0.1-1.5 wt.% of noble metals including Pt, Rh, and Pd, wherein the weight ratio of protonic or ammonium zeolite and metal oxides is 1:1; (ii) chemically and physically fixing volatile hydrocarbons having a boiling point of 60 to 200°C and hydrocarbons containing hetero atom; and (iii) dispersing noble metals into the composite substrate via carbonization at 250-300°C in oxygen atmosphere and calcination at 450-550°C. The protonic or ammonium zeolite is selected from BEA, MFI, MOR and FAU structured zeolites of which Si/Al ratio is within 10-100. The metal oxides are selected from zirconia, seria, and titania containing 0.2-2.0wt.% of sulfate or persulfate. Volatile hydrocarbons and hydrocarbons are selected from TEAOH, furfuryl alcohol, TPAOH, TBACl, TPA, aqueous sucrose solution, and aqueous glucose solution.
    • 用途:提供一种含有高度分散的贵金属的混合分子筛DeNOx催化剂,即使在水分,CO2和SO2共存的情况下也表现出优异的抗中毒能力,因此它适用于燃气轮机,锅炉和移动空气中的气体净化 像贫困车辆这样的污染源。 本发明涉及一种制备含有高分散贵金属的杂化分子筛DeNOx催化剂的方法,包括以下步骤:(i)将含有贵金属的二氧化硅或H- 1.5wt%的贵金属,包括Pt,Rh和Pd,其中质子或铵沸石与金属氧化物的重量比为1:1; (ii)化学和物理固定沸点为60-200℃的挥发性烃和含有杂原子的烃; (iii)通过在250-300℃和在氧气氛中碳化并在450-550℃煅烧,将贵金属分散到复合衬底中。 质子或铵沸石选自Si / Al比率在10-100范围内的BEA,MFI,MOR和FAU结构沸石。 金属氧化物选自含有0.2-2.0重量%硫酸盐或过硫酸盐的氧化锆,正铁和二氧化钛。 挥发性烃和烃选自TEAOH,糠醇,TPAOH,TBACl,TPA,蔗糖水溶液和葡萄糖水溶液。
    • 3. 发明公开
    • 고분산 귀금속 담지 하이브리드형 분자체 탈질촉매의제조방법
    • 包含高分散金属的混合分子筛脱氧催化剂的制备
    • KR1020020030672A
    • 2002-04-25
    • KR1020000061714
    • 2000-10-19
    • 한국화학연구원한국가스공사
    • 박상언이철위박중남송인표최동수박달령
    • B01J37/30B01J37/08
    • B01J37/0009B01D53/9427B01J29/44B01J29/7215B01J37/084B01J37/30
    • PURPOSE: Provided is a hybrid molecular sieve DeNOx catalyst containing highly dispersed noble metals, which show excellent poisoning resistance even in the coexistence of moisture, CO2, and SO2, therefore it is applicable to gas emission purification in gas turbine, boiler, and mobile air pollution sources such as lean burn vehicles. CONSTITUTION: In the manufacture process of DeNOx catalyst by supporting silica or H-beta zeolite with noble metals, the method of preparing a hybrid molecular sieve DeNOx catalyst containing highly dispersed noble metals includes the steps of (i) supporting a composite substrate with 0.1-1.5 wt.% of noble metals including Pt, Rh, and Pd, wherein the weight ratio of protonic or ammonium zeolite and metal oxides is 1:1; (ii) chemically and physically fixing volatile hydrocarbons having a boiling point of 60 to 200°C and hydrocarbons containing hetero atom; and (iii) dispersing noble metals into the composite substrate via carbonization at 250-300°C in oxygen atmosphere and calcination at 450-550°C. The protonic or ammonium zeolite is selected from BEA, MFI, MOR and FAU structured zeolites of which Si/Al ratio is within 10-100. The metal oxides are selected from zirconia, seria, and titania containing 0.2-2.0wt.% of sulfate or persulfate. Volatile hydrocarbons and hydrocarbons are selected from TEAOH, furfuryl alcohol, TPAOH, TBACl, TPA, aqueous sucrose solution, and aqueous glucose solution.
    • 目的:提供含有高度分散的贵金属的杂化分子筛DeNOx催化剂,即使在水分,二氧化碳和二氧化硫共存时也具有优异的耐中毒性,因此适用于燃气轮机,锅炉和移动空气中的气体排放净化 污染源如稀燃车。 构成:在通过用贵金属负载二氧化硅或H-β沸石的DeNOx催化剂的制造方法中,制备含有高度分散的贵金属的杂化分子筛DeNOx催化剂的方法包括以下步骤:(i)将复合基材以0.1- 1.5重量%的贵金属包括Pt,Rh和Pd,其中质子或铵沸石和金属氧化物的重量比为1:1; (ii)化学和物理固定沸点为60至200℃的挥发性烃和含有杂原子的烃; 和(iii)在氧气氛中,在250-300℃下通过碳化将贵金属分散到复合衬底中,并在450-550℃下煅烧。 质子或铵沸石选自Si / Al比在10-100内的BEA,MFI,MOR和FAU结构的沸石。 金属氧化物选自含0.2-2.0重量%硫酸盐或过硫酸盐的氧化锆,丝氨酸和二氧化钛。 挥发性烃和烃选自TEAOH,糠醇,TPAOH,TBAC1,TPA,蔗糖水溶液和葡萄糖水溶液。
    • 8. 发明公开
    • 회수된 실리카 여액을 이용한 고 실리카 제올라이트의 제조방법 및 이에 따라 제조된 고 실리카 제올라이트
    • 使用回收二氧化硅残留物和高二氧化硅沸石的高硅沸石的制造方法
    • KR1020140014643A
    • 2014-02-06
    • KR1020120081167
    • 2012-07-25
    • 한국화학연구원
    • 강나영박용기최원춘서휘민이철위
    • C01B39/38C01B39/26B01J2/08
    • C01B39/38C01B39/02C01B39/26C01P2002/72C01P2004/03
    • The present invention is to provide a method for producing high silica zeolite using a recovered silica filtrate, and a high silica zeolite produced by the method. To this end, the method of the present invention comprises the steps of: preparing agglomerated silica which is solated from a silica filtrate containing metallic salts (Step 1); filtering and washing the agglomerated silica which is solated in Step 1 to prepare a silica cake without the metallic salts (Step 2); peptizing the silica cake to prepare a silica sol (Step 3); and preparing a high silica zeolite by using the silica sol prepared in Step 3 as a silica source (Step 4). Also, the present invention provides a high silica zeolite which is prepared from a recovered silica filtrate by the foregoing method and has an Si/Al molar ratio of 5 or higher. According to the present invention, the zeolite is produced by recycling the recovered silica filtrate, thereby providing a method for producing high silica zeolite whose processing steps are economical and production costs and time are reduced.
    • 本发明提供一种使用回收的二氧化硅滤液生产高二氧化硅沸石的方法和通过该方法制备的高二氧化硅沸石。 为此,本发明的方法包括以下步骤:制备由含有金属盐的二氧化硅滤液固化的附聚二氧化硅(步骤1); 过滤和洗涤在步骤1中溶剂化的附聚二氧化硅,制备不含金属盐的二氧化硅饼(步骤2); 将硅胶胶化以制备二氧化硅溶胶(步骤3); 并通过使用步骤3中制备的二氧化硅溶胶作为二氧化硅源制备高硅石沸石(步骤4)。 此外,本发明提供一种高硅石沸石,其通过上述方法由回收的二氧化硅滤液制备,Si / Al摩尔比为5以上。 根据本发明,沸石是通过再循环回收的二氧化硅滤液而制备的,从而提供一种生产高二氧化硅沸石的方法,其加工步骤是经济的,并且生产成本和时间降低。