摘要
在极浓体系下，采用自制的经预处理的硅铝氧化物为原料，合成出新颖形貌的丝光沸石，并以按照常规方法水热体系合成的样品作为对比。对试样进行了X射线衍射（XRD），扫描电子显微镜（SEM），红外光谱（FT—IR）等一系列物化性能表征。结果表明，在极浓体系下合成的丝光沸石具有由条形晶体（4μm×0．3μm×0．1μm）规整堆积成的椭球晶粒（约15μm）结构，与水热体系下合成的规整的六面体晶型完全不同，具有较大的比表面积和孔径。
Zeolite mordenite with novel morphology was synthesized in low-water content system by using pretreated silica-alumina oxide as source materials. As a contrast, hexahedral mordenite crystal was easily obtained from conventional hydrothermal system with solid silica and alumina source. The physicochemical properties o{ synthesized mordenite samples were characterized by XRD, FT-1R, SEM, and N2-adsorption analysis. The experimental results indicated that the mordenite crystal synthesized in low-water content system is the ellipsoid （about 15μm） comsisting of regularly long strip （4μm×0.3μm×0.1μm） crystals deposited together, which is completely different from the hexahedral mordenite crystal obtained in hydrothermal system. The BET surface area and total pore volume of the mordenite with novel morphology were enhanced.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2008年第B10期131-135,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
中国石油天然气集团公司项目（06A50101）资助
关键词
极浓体系
丝光沸石
形貌
low-water content system
mordenite
morphology
