CAJ | 학술논문

以蜂窝状堇青石为载体，采用改性氧化铝浆液涂覆载体，再负载活性组分 Pt 和 Pd，制备了丙烷催化燃烧催化剂，优化了催化剂制备工艺条件。研究表明：Si 与 CexZr1-xO 的添加明显提高了涂层的耐高温性能， CexZr1-xO/SiO2-Al2O3涂层在高温下保持了较高的比表面积；活性组分 Pt 和 Pd 在其表面分散均匀；本实验制备的催化剂在430℃和20000 h-1空速条件下，对含丙烷废气的总烃去除率可以达到90%以上。
이봉와상근청석위재체，채용개성양화려장액도복재체，재부재활성조분 Pt 화 Pd，제비료병완최화연소최화제，우화료최화제제비공예조건。연구표명：Si 여 CexZr1-xO 적첨가명현제고료도층적내고온성능， CexZr1-xO/SiO2-Al2O3도층재고온하보지료교고적비표면적；활성조분 Pt 화 Pd 재기표면분산균균；본실험제비적최화제재430℃화20000 h-1공속조건하，대함병완폐기적총경거제솔가이체도90%이상。
The catalyst for catalytic combustion of propane was prepared by supporting Pt-Pd on honeycomb-like cordierite with modified-Al2O3 coating. The preparation conditions were optimized. The results show that the addition of Si and CexZr1-xO can improve the thermal stability of the catalyst coating. CexZr1-xO/SiO2-Al2O3 coating has high specific surface area, and the active components can be evenly dispersed on the surface. Under the space velocity of 20 000 h-1 and the inlet temperature of 430 ℃,the total hydrocarbon removal rate is more than 90% for VOCs containing propane.