Abstract:
본 발명은 고온 다습한 가혹한 분위기에서 나프타의 접촉분해를 통하여 경질올레핀을 제조하는데 사용되는 성형촉매에 관한 것으로, 보다 구체적으로는, 0.01~5.0 wt%의 MnO 2 및 1~15 wt%의 P 2 O 5 가 제올라이트, 클레이 및 무기 산화물에 동시에 담지 되도록 혼합한 슬러리를 분무 건조 및 소성하여 제조되는 경질올레핀 생산용 탄화수소 접촉분해 촉매 및 그 제조방법에 관한 것이다. 본 발명에 따른 촉매는 망간과 인이 제올라이트와 무기 산화물을 동시에 수식함으로써, 얻어진 구형 성형촉매의 수열안정성을 향상시킬 뿐만 아니라, 제올라이트의 산점을 보호하여 나프타와 같은 C 4 이상의 탄화수소 접촉분해시 높은 경질 올레핀 수율을 얻을 수 있으며, 촉매의 제조방법이 간단하여 대량 생산이 용이하고 경제성이 제고되는 효과가 있다. 인, 제올라이트, 망간, 인산염, 접촉분해, 수열안정성, 경질올레핀, 탄화수소, 나프타
Abstract:
Hydrocarbon cracking catalysts for producing light olefins and a method for producing the same are provided to gain high hard olefin yield when hydrocarbon such as naphtha is decomposed by protecting acid sites of zeolite and improving hydrothermal stability of a spherical forming catalyst. Hydrocarbon cracking catalysts for producing light olefins includes zeolite of 1~50 wt%, clay of 21~70 wt%, a catalyst component consisting of an inorganic oxide of 1~40 wt%, MnO2 of 0.01~5.0 wt%, and P2O5 of 1~15 wt%. The inorganic oxide is Al2O3, and SiO2 or Al2O3-SiO2. A boiling point of hydrocarbon is 30~200‹C. A manufacturing method of the hydrocarbon cracking catalysts includes a step for producing mixing slurry by stirring a phosphorus precursor and a manganese precursor, and a step for sintering the mixing slurry after drying.
Abstract:
A method of manufacturing light olefin from hydrocarbon is provided to manufacture light olefin with high selectivity and high purity from hydrocarbon material by maintaining high decomposition activity at low temperature. The method of manufacturing light olefin from hydrocarbon includes the steps of: (a) supplying hydrocarbon as a supply material; (b) transferring the supply material to inside of at least fixed bed or a fluidized bed, and reacting it under the presence of a catalyst; and (c) isolating and collecting light olefin from the effusion from the reaction area. The catalyst consists of a material produced by the moisture evaporation of law material mixture including 100 weight part of molecular sieve having -Si-OH-Al-, 0.01-5.0 weight part of water insoluble metal salt, and 0.05-17.0 weight part of phosphate compound.