zeolites

A series of ultrastable Y zeolites with varies Si/Al mol ratio prepared by different dealumination methods have been investigated.

研了不同方法和不同程度脱铝对Y型沸石浸镧老化后结和催化裂化能影响。

The performance of ZSM5、TRA and ZSM5-TRA zeolite catalysts(TRA is one kind of the ZSM series zeolites) for the vapour-phase transalkylation of poly-alkylbenzene have been studied.

在连续流动固定床反应装置上，考ZSM5、TRA及ZSM5-TRA分子筛催化剂多烷基苯气相烷基转移催化能。

The selective Production of monomethylamine (MMA) from methanol and ammonia was studied over some adhesive zeolites at temperature of 425℃ under ambient pressures.

本文研在425℃、常压下,通过粘结沸石催化剂,甲醇与氨选择合成一甲胺反应。