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Efficient Propylene Production by Catalytic Cracking of Light Naphtha with MFI-Zeolite/Metal-Oxide Composites

机译:用MFI-沸石/金属氧化物复合材料催化裂化通过催化裂化的高效丙烯生产

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Propylene is quite important as a raw material building block in the petrochemical industry and the global demand for propylene has been increased steadily. A majority of the propylene (ca. 60%) has been produced as a byproduct by thermal steam-cracking of hydrocarbon feedstock such as naphtha, but this technology requires a huge amount of thermal energy (temperature: 850-900°C) as well as its low propylene/ethylene weight ratio (ca. 0.5). The recent shift to ethane-based feedstock for producing ethylene also might affect the propylene supply, because this technology produces little propylene. Therefore, any new method for producing propylene efficiently from light-naphtha, being widely available feedstock, should be developed to meet future propylene demand and utilize various light paraffinic hydrocarbons (e.g., light liquid hydrocarbons obtained from refinery processes of shale gas and other unconventional crude oil, GTL-naphtha) by converting them into valuable light olefins.
机译:丙烯作为石油化工工业的原材料构建块非常重要,全球对丙烯的需求稳步增长。 通过碳氢化合物原料如石脑油的热蒸汽开裂,生产了大部分丙烯(约60%)作为副产物,但该技术也需要大量的热能(温度:850-900°C) 作为其低丙烯/乙烯重量比(约0.5)。 最近向乙烷基原料的转变为生产乙烯也可能影响丙烯供应,因为该技术产生很少的丙烯。 因此,应开发出可从石脑油中有效生产丙烯的任何新方法,以广泛的原料,以满足未来的丙烯需求,并利用各种轻的石蜡烃(例如,从页岩气和其他非常规原油获得的炼油厂过程中获得的轻质烃类碳氢化合物 通过将它们转化为有价值的轻烯烃来源,GTL-钽。

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