多酸基深度加氢脱硫催化剂的原位表征和反应性能  

In-situ Characterization and Reactivity of Heteropoly Acid-based Catalysts for Deep Hydrodesulfurization of Fluid Catalytic Cracking Gasoline

作　　者：王旭阳[1] 宋鹏月 王祥生[2] 郭新闻[2] 郭洪臣[2] 杨晓宇[3] 陈立东[1] 姜春杰[1] 

机构地区：[1]辽宁师范大学化学化工学院功能材料化学研究所,大连116029 [2]大连理工大学化工学院,大连116024 [3]中国石油天然气股份有限公司大连石化分公司,大连116032

出　　处：《应用化学》2014年第8期990-992,共3页Chinese Journal of Applied Chemistry

基　　金：中国博士后科学基金(20080441109);国家自然科学基金(21171082)资助项目~~

摘　　要：采用浸渍法合成了镍盐复合的磷钨酸(HPW)/纳米晶HZSM-5固体酸催化剂,其在催化裂化(FCC)汽油加氢改质反应中显示出了良好地深度加氢脱硫活性。原位电子自旋共振和原位吡啶吸附红外光谱表征手段的研究结果表明,纳米晶HZSM-5沸石上Ni(Ⅱ)结合3电子还原态的HPW(Ⅲ)是FCC汽油深度加氢脱硫反应的活性中心。探讨了多酸基催化剂在FCC汽油深度加氢脱硫反应中活性改善的原因。technique resonance The composite nickel phosphotungstate （NiPW）-HZSM-5 catalyst was prepared by the impregnating on nanocrystalline HZSM-5 zeolite. The catalysts were and in-situ pyridine adsorption Fourier-transform characterized by in-situ electron paramagnetic infrared. The results show that the deep hydrodesulfurization of fluid catalytic cracking（FCC） gasoline are enhanced over the NiPW-HZSM-5 catalyst. Heteropoly acid （HPW （Ⅲ））-Ni （Ⅱ） on the nanocrystalline HZSM-5 zeolite is the active center of deep hydrodesulfurization of FCC gasoline. The effect of the acidity on the activity over different catalysts in deep hydrodesulfurization of FCC gasoline was investigated.

关 键 词：杂多酸 电子顺磁共振 加氢脱硫 催化裂化汽油 镍 

分 类 号：O643[理学—物理化学]