论文部分内容阅读
SAPO-34 samples with sheet-like and cubic morphology were synthesized under microwave and hydrothermal conditions,respectively.The sheet-like SAPO-34 showed a thickness of 130 nm with a BET surface area of 593 m2/g,while the cubic one was primarily distributed around 1.5 ~ 2.5 μm in size with a BET surface area of 708 m2/g.MTO catalytic test was carried out at 450oC and 1.0 h-1,and the results showed that sheet-like SAPO-34 possessed a longer lifetime and higher olefin selectivity.