HPPO工艺催化剂活性组分研究

针对丙烯与过氧化氢制备环氧丙烷反应（HPPO工艺）的特点，对专用催化活性组分钛硅分子筛HTS进行了研究。该研究包括对HPPO工艺所需活性组分钛硅分子筛制备条件的考察和优化，将钛硅分子筛HTS改性制备为合适的丙烯环氧化催化活性组分，然后制备成催化剂，用于HPPO中试实验。结果表明，丙烯与过氧化氢制备环氧丙烷反应的过氧化氢转化率大于95%，环氧丙烷选择性大于95%，催化剂活性稳定性良好。

Study on Catalytic Material Used in HPPO Process

Based on the characteristic of propylene oxide preparation reaction from propylene with hydrogen peroxide as oxidant, catalytic material HTS was investigated thoroughly, including the optimization of preparation conditions for titanium silicalites used in hydrogen peroxide-propylene oxide (HPPO) process, the modification of HTS, the preparation of the catalyst with modified HTS as active component, and the evaluation of HPPO pilot with the prepared catalyst. The results showed that with the suitably modified HTS as the active component of catalyst for HPPO the conversion of hydrogen peroxide and the selectivity to propylene oxide both above 95% could be obtained, and active stability of the catalyst was good enough for propylene epoxidation.