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ＨＺＳＭ－２０沸石分子筛的水蒸汽改性项寿鹤，任大立，王敬中，李赫晅（南开大学化学系，天津３０００７１）关键词ＨＺＳＭ－２０沸石，水蒸汽处理，改性ＺＳＭ－２０沸石是一种具有大孔和开放结构的分子筛［１］，其结构与八面沸石（如Ｙ型沸石）类似，但其硅铝比较高...
Water vapor modification of HZSM-20 zeolite SHE He, REN Dali, WANG Jingzhong, LI Heguo (Department of Chemistry, Nankai University, Tianjin 300071) Key words HZSM-20 zeolite, steam treatment, modified ZSM- Molecular sieves with macropores and open structures [1], similar in structure to faujasites (eg Y-type zeolites), but with relatively high Si / Al ...