揮發性有機物苯全氧化反應觸媒研究

INVESTIGATION OF CATALYST FOR TOTAL OXIDATION OF VOLATILE ORGANIC COMPOUND BENZENE

廖炳傑(Biing-Jye Liaw) ； 黃正吉(Cheng-Chi Huang) ； 陳吟足(Yin-Zu Chen)

《桃園創新學報》 35期 (2015/12) Pp. 489-504

摘要

本研究以共沉澱法製備具良好redox 特性的共溶性氧化物Ce_(0.9-x)Zr_(0.1)Mn_xO_2作為擔體，並製備CuO/Ce_(0.9-x)Zr_(0.1)Mn_xO_2 觸媒進行揮發性有機物苯的全氧化反應研究。Ce_(0.9-x)Zr_(0.1)Mn_xO_2 擔體本身就有顯著的苯全氧化反應活性，負載CuO 後略為提升反應活性，顯示CuO 並不是苯全氧化反應觸媒的主要活性中心。CuO/Ce_(0.9-x)Zr_(0.1)Mn_xO_2 觸媒進行苯的全氧化反應有良好的活性表現，最適觸媒7%CuO/Ce_(0.6)Zr_(0.1)Mn_(0.3)O_2 經過200 小時反應仍能維持媲美貴金屬觸媒0.3%Pd/γ-Al_2O_3 之穩定高活性，為一種能應用於揮發性有機物苯完全氧化去除之潛力觸媒。

關鍵字

揮發性有機物 ； 苯 ； 全氧化

並列摘要

This study prepared solid solution Ce_(0.9-x)Zr_(0.1)Mn_xO_2 mixed oxides by co-precipitation method, which had a good redox property, and were used as supports for preparing CuO/Ce_(0.9-x)Zr_(0.1)Mn_xO_2 catalysts by impregnation for use in the reaction of benzene total oxidation. The Ce_(0.9-x)Zr_(0.1)Mn_xO_2 support itself exhibited significant activity in benzene total oxidation and the activity slightly increased after loading CuO on support. This fact indicated that CuO was not the main active center of catalyst. CuO/Ce_(0.9-x)Zr_(0.1)Mn_xO_2 catalysts exhibited good activity in benzene total oxidation. During a long run (200 h) test, the best catalyst 7%CuO/Ce_(0.6)Zr_(0.1)Mn_(0.3)O_2 maintained a stable complete conversion as the precious metal catalyst 0.3%Pd/γ-Al_2O_3. The 7%CuO/Ce_(0.6)Zr_(0.1)Mn_(0.3)O_2 catalyst is a promising candidate for the removal of volatile organic compound benzene by total oxidation.

並列關鍵字

volatile organic compound ； benzene ； total oxidation ； CuO ； Ce-Zr-Mn-O