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- A few species of ultrastable Y zeolite with homogeneous aluminium distribution were prepared by means of combining hydrothermal roast and adding some A12(SO4)3 into the H2SiF6-NH3 dealumium ized and silicon enriched ultrastable Y zeolite slurry. 采用水热焙烧和向H_2SiF_6-NH_3脱铝补硅超稳Y沸石体系中添加适量Al_2(SO_4)_3的方法制备出几种铝分布均匀的超稳Y沸石分子筛。
- Adopting silicon tetrachloride treatment,the ultrastable Y zeolite prepared from the microwave dried zeolite possessed the same crystalline structure and physicochemical properties a... 与传统电加热干燥方式相比,微波干燥能缩短干燥时间,有效降低能耗。
- Keywords NH_4F;ultrastable Y zeolite;modification;FCC catalyst; 氟化铵;超稳Y型分子筛;改性;催化裂化催化剂;
- A series of ultrastable Y zeolites with varies Si/Al mol ratio prepared by different dealumination methods have been investigated. 研究了不同方法和不同程度脱铝对Y型沸石浸镧老化后的结构性质和催化裂化性能的影响。
- Keywords Tungsten;Nickel;Alumina;Ultrastable Y zeolite;Hydrodenitrogenation; 钨;镍;氧化铝;超稳Y型分子筛;加氢脱氮;
- Keywords ultrastable Y zeolite;hydrothermal stability;silicon colloidal sol; 超稳Y沸石;水热稳定性;硅溶胶;
- Keywords cracking catalyst;ultrastable Y zeolite;Al 2O 3;nickel resistance; 裂化催化剂;超稳Y分子筛;氧化铝;
- Keywords ultrastable Y zeolite;phosphate;MAS-NMR;hydrothermal treatment; 超稳Y分子筛;磷;固体核磁共振;水热处理;
- Keywords endo-tetrahydrodicyclotadiene;ultrastable Y zeolite;12-tungstophosphoric acid;adamantane; 四氢双环戊二烯;超稳Y沸石;磷钨酸;金刚烷;
- Keywords ammonium hexafluorosilicate;ultrastable Y zeolite;dealumination;mechanism; 氟硅酸铵;超稳Y沸石;脱铝;机理;
- Keywords resid;catalytic cracking;ultrastable Y zeolite;coke yield;silica-alumina ratio; 渣油;催化裂化;超稳Y沸石;结焦率;硅铝比;
- Keywords palladium;iridium;ultrastable Y zeolite;alumina;toluene;hydro-dearomatization; 钯;铱;超稳Y沸石;氧化铝;甲苯;加氢脱芳;
- Keywords tartaric acid;high SiO2/Al2O3 ratio;ultrastable Y zeolite;modification;FCC catalyst; 酒石酸;高硅铝比;超稳Y型分子筛;催化裂化催化剂;
- Keywords Ultrastable Y zeolite;surface composition;bulk composition;aluminium distribution;X-ray pbotoelectron speclroscopy; 超稳Y沸石;铝分布;表面组成;体相组成;X射线光电子能谱;
- CRACKING REACTION OF ISOOCTANE OVER ULTRASTABLE Y ZEOLITES 超稳Y型沸石上的异辛烷裂化反应
- ultrastable Y zeolite 超稳Y沸石
- Keywords ultrastable Y zeolites;dealumination method;properties of ultrastable Y zeolite;catalysis; 超稳Y沸石;脱铝方法;超稳Y沸石性能;催化;
- The Y zeolite is calcinated at high temperature after fluoride modified. 摘要 采用氟处理结合高温焙烧的方法对Y型分子筛进行改性。
- Y-MCM-41 containing secondary building units of Y zeolite was prepared and then treated by ion exchange method. 制备了含有Y沸石次级结构单元的Y-MCM-41,并对其进行离子交换处理。
- The relationship between surface acidity and alkylation reaction catalytic activity of modified Y zeolite was studied on fixed-bed reactor by FT-IR. 用红外光谱法研究了改性Y型分子筛的表面酸性,并考察了烷基化反应活性与酸性质的关系。