一种大孔分子筛的微波合成方法

一种大孔分子筛的微波合成方法，以硅源物质、铝源物质为原料，与附加试剂用无机酸或碱调合成初始凝胶混合物，其特征在于：初始凝胶混合物料在微波辐射条件下加热回流，时间２分钟～１０小时，微波频率在２．０～２０．０ＧＨz，功率为５０～２０００瓦；所得固体粉在５００～６００℃下空气中焙烧３～１０小时，即得ＭＣＭ－４１大孔分子筛。本发明晶化速度快且晶型纯正、晶粒均匀细小，并且具有较小的比表面，较强的耐热和水热稳定性及抗酸碱能力。带填

synthesisofmesoporoustipalmaterialwithhighthermalstabilitybypostsynthetictreatment

Mesostructured TiO2 was prepared hydrothermally using cetyltrimethylammonium bromide (CTAB) as the structure directing agent, and the mesoporous Ti-P-Al material with high thermal stability was subsequently synthesized by a two-step post-synthetic treatment. The sample was characterized by powder X-ray diffraction, transmission electron microscopy, and N-2 adsorption. It was found that the composition of the starting gel system greatly affected the mesostructure of TiO2 materials greatly. With the gel composition of Ti(SO4)(2): CTAB: H2O=1:0.54:430 and after being treated at 363 K for 10-20 min, an ordered TiO2 mesostructure was obtained, which presented better long-range order after being treated with 0.25 mol/L phosphoric acid solution. Further treatment with AlCl3 solution resulted in a mesoporous Ti-P-Al material with high thermal stability, which had a high BET specific surface area of 382 m(2)/g and a pore size of 3.13 nm after calcination at 873 K

synthesisofmesoporoustipalmaterialwithhighthermalstabilitybypostsynthetictreatment

Mesostructured TiO2 was prepared hydrothermally using cetyltrimethylammonium bromide (CTAB) as the structure directing agent, and the mesoporous Ti-P-Al material with high thermal stability was subsequently synthesized by a two-step post-synthetic treatment. The sample was characterized by powder X-ray diffraction, transmission electron microscopy, and N-2 adsorption. It was found that the composition of the starting gel system greatly affected the mesostructure of TiO2 materials greatly. With the gel composition of Ti(SO4)(2): CTAB: H2O=1:0.54:430 and after being treated at 363 K for 10-20 min, an ordered TiO2 mesostructure was obtained, which presented better long-range order after being treated with 0.25 mol/L phosphoric acid solution. Further treatment with AlCl3 solution resulted in a mesoporous Ti-P-Al material with high thermal stability, which had a high BET specific surface area of 382 m(2)/g and a pore size of 3.13 nm after calcination at 873 K

甲醇耦合的烷烃催化转化反应耦合效应评价方法及装置

一种甲醇耦合的烷烃催化转化反应的耦合效应评价方法，用于测定甲醇及其脱水转化反应产物对烷烃催化转化的耦合效应；主要过程是：通过质量流量计来控制不同流速载气流过含有烷烃或甲醇饱和发生器而携带出原料蒸汽，将蒸汽以脉冲方式进入反应器，获得不同接触时间条件下甲醇耦合烷烃催化转化的反应转化率和烷烃单独催化转化的反应转化率，并根据甲醇耦合烷烃催化转化的反应转化率和烷烃单独催化转化的反应转化率分别计算出上述两种催化转化的反应速率，甲醇耦合烷烃催化转化的反应速率与烷烃单独催化转化的反应速率之比为甲醇耦合的烷烃催化转化反应的耦合效应。带填