催化湿式氧化中铜基催化剂的流失与控制  

The Leaching and Control of Active Component Cu in Copper-Based Catalysts for Catalytic Wet Air Oxidation

作　　者：窦和瑞[1] 朱静东[2] 陈拥军[1] 吴鸣[1] 孙承林[1] 

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023 [2]中国石油长庆油田公司,陕西西安710000

出　　处：《催化学报》2003年第5期328-332,共5页

摘　　要：制备了催化湿式氧化处理有机废水用铜基催化剂 ,并用XRD ,XRF和TG DTG等手段对催化剂进行了表征 ,对催化剂及其前驱体的组成和结构进行了分析鉴定 .结果表明 ,由类水滑石结构的前驱体焙烧得到的催化剂Cu Al Zn O ,其活性组分铜的流失得到了控制 ;在氧化降解苯酚、十二烷基苯磺酸钠和磺基水杨酸时 ,在初始氧分压 0 5MPa和 16 0～ 2 2 0℃的反应条件下 ,催化剂活性组分铜的流失量小于 0 3mg/L.对催化剂活性组分不易流失的原因进行了理论解释和计算 .In this paper, copper based catalysts for the catalytic wet air oxidation of organic wastewater were prepared. The catalysts and their precursors were analyzed by XRD, XRF and TG DTG. It was found that there is no or little Cu leaching for Cu Al Zn catalyst whose precursor possesses hydrotalcite like structure. In the degradation of phenol, sodium dodecyl benzenesulfonate and sulfosalicylic acid under the reaction condition of initial oxygen pressure 0 5 MPa and temperature 160～220 ℃, Cu leaching is below 0 3 mg/L . The preliminary theory calculation and analysis for the stability of the catalysts were made.

关 键 词：催化湿式氧化 铜基催化剂 流失 控制 有机废水 类水滑石 废水处理 苯酚 十二烷基苯磺酸钠 磺基水杨酸 催化降解 

分 类 号：O643.3[理学—物理化学]