多级孔ZSM-22分子筛的合成及其正十二烷加氢异构化性能

韩扬, 李梦晨, 于宏悦, 乔亮, 沈雨歌, 高善彬, 矫义来, 迟克彬

Synthesis of Hierarchical ZSM-22 Zeolite and its Catalytic Performance for Hydrogenation Isomerization of n-Dodecane

HAN Yang, LI Mengchen, YU Hongyue, QIAO Liang, SHEN Yuge, GAO Shanbin, JIAO Yilai, CHI Kebin

表2 不同TDPA添加量合成产物的硅铝比和NH3-TPD分析结果

Table 2 Concentration of acid sites determined by NH3-TPD and SiO2/Al2O3 determined by XRF

Samples SiO2/Al2O3 (XRF) Weak acid Strong acid Total NH3 uptake / μmol·g-1 Temperature / oC NH3 uptake / μmol·g-1 Temperature / oC NH3 uptake / μmol·g-1 Z22-0 63.34 225 275 435 206 481 Z22-0.0068 60.63 227 310 447 247 557 Z22-0.0119 58.77 230 309 448 249 558 Z22-0.0170 58.37 231 317 452 258 575 Z22-0.0221 61.32 229 302 451 248 550 Z22-0.0272 86.72 218 195 431 145 340 Z22-0-5L 61.63 221 279 443 258 537 Z22-0.0068-5L 58.72 224 290 448 268 558 Z22-0.0170-5L 54.08 227 312 452 303 615 Z22-0.0272-5L 75.26 223 258 439 243 501