摘要
为有在沸石和 MCM-22 沸石上的丙烯的苯的完化的反应机制分别地被调查由在原处,实验的红外 spectrometry.Three 类型被执行( 1 )煤气阶段的丙烯的红外系列,苯和 isopropyl 苯被记录( 2 )红外系列上述作为被吸附物质,那与沸石晶片相结合的物质被记录( 3 )反应模式的红外系列是测试结果显示出的 recorded.The 完化
The reaction mechanism for alkylation of benzene with propylene over the β zeolite and the MCM-22 zeolite were investigated respectively by in-situ IR spectrometry. Three types of experiments were carried out. (1) IR spectra of the gas-phase propylene, benzene and isopropyl benzene were recorded. (2) IR spectra of the above-mentioned substances as adsorbates that have combined with the zeolite wafer were recorded. (3) IR spectra of the reaction modes were recorded. The test results showed that the alkytation reaction over the zeolite β was ascribed to the mechanism of carbonium ions, whereas the alkylation reaction over the zeolite MCM-22 was ascribed to the synchronous reaction mechanism.