天然粘土基催化剂的制备及HCl氧化制氯性能  

Preparing Natural Clay-Based Catalysts for HCl Catalytic Oxidation to Recycle Chlorine

作　　者：戴勇[1,2] 叶宏斌[1] 费兆阳[1] 陈献[1] 汤吉海[1] 崔咪芬[1] 乔旭[1] 

机构地区：[1]南京工业大学化学化工学院,江苏南京210009 [2]盐城工学院化学与生物工程学院,江苏盐城224051

出　　处：《分子催化》2014年第1期54-59,共6页Journal of Molecular Catalysis(China)

基　　金：国家科技支撑计划(2011BAE18B01);江苏省基础研究计划(自然科学基金)重点项目(BK2010083);江苏省科技支撑计划(BE2011830);江苏省高校自然科学基金面上项目(13KJB530006);中国博士后基金(2013M531340);国家自然科学基金(21306089)

摘　　要：分别以廉价易得的天然粘土为载体,制得CeCuK/高岭土、CeCuK/膨润土、CeCuK/活性白土催化剂,并进行了BET、XRD、Raman、H2-TPR、ICP、SEM等表征及HCl催化氧化性能研究.结果显示:CeCuK/活性白土具有较大的比表面积、孔容和平均孔径,活性组分CuO晶粒在活性白土载体上分散较好;在3种催化剂上CuO物种还原顺序为:CeCuK/活性白土>CeCuK/膨润土>CeCuK/高岭土;CeCuK/活性白土表现出较好的催化性能,当反应温度为430℃,HCl的质量空速为1.53 h-1时,V(HCl)∶V(O2)=1∶1,催化剂上HCl的反应能力为749 L·kg-1·h-1.Using cheap and available natural clays （activated clay, bentonite and colin） as supports, CeCuK/acti- vated clay, CeCuK/bentonite and CeCuK/colin catalysts for HC1 oxidation were prepared, respectively, and cha- racterized by technologies of BET, XRD, Raman, H2-TPR, ICP and ESEM. Their corresponding catalytic oxidation performances were studied. The experimental results showed that CeCuK/activated clay catalyst had the maximum values of surface area, pore volume and pore diameter, and active component CuO was most dispersed on the support of activated clay. The reducing sequence of catalysts was as follows： CeCuK/activated clay 〉 CeCuK/bentonite 〉 CeCuK/eolin. Under conditions of bed temperature 430℃ and HCl weight space-time speed 1.53 h-1, V （HCl） ： V（ 02）= 1 ： 1 ,the reaction capability of HCl on catalyst CeCuK/aetivated clay reached 749 L · kg〈 · h-1.

关 键 词：粘土基催化剂 活性白土 氯化氢 催化氧化 

分 类 号：O643[理学—物理化学]