摘要
本文用热重法考察了三种不同孔道结构的分子筛（ＳＡＰＯ－３４，ＳＡＰＯ－５，ＨＺＳＭ－５）在乙醇转化为低碳烯反应过程中的积炭行为，以及经钾、镁的化合物改质的ＳＡＰＯ－３４分子筛在该反应过程中的抗积炭能力。用氨程序升温脱附法（ＴＰＤ）研究了它们在积炭前后的酸性变化。
In this Paper, the coring behavior of three of molecular sieve SAPO-34. SAPO-5 and HZSM-5,With Various pore structures in the reaction of Conversion of thermogrvimetry, and the anticoking ability of SAPO-34Molecular sieves modified by loading with potassium,magnesium compound has also been determined. The acid proper-ties of its coking in front and behind by temperature programmed desorption of ammonia(TPD)。
