Preparation,Structure Characterization and Hydrodesulfurization Performance of B-Ni_2P/SBA-15/Cordierite Monolithic Catalysts  

B-Nh_2P/SBA-15/堇青石整体式催化剂的制备、结构表征和加氢脱硫性能(英文)

作　　者：吴平易 李庆远 兰玲 刘鸿飞 鞠雅娜 朴佳锐 季生福 

机构地区：[1]Petrochemical Research Institute,PetroChina [2]State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology

出　　处：《Chinese Journal of Chemical Engineering》2014年第8期903-908,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Basic Research Program of China(2006CB202503);the Science Foundation of PetroChina(2010D-5006-0401)

摘　　要：A series of B-Ni2P/SBA-15/cord monolithic catalysts were prepared by coating the slurry of the B-Ni2P/SBA-15 precursors on a pretreated cordierite support, and followed by temperature-programmed reduction in a H2 flow. The samples were characterized by X-ray diffraction （XRD） and N2 adsorption-desorption technique. The catalytic activities for the hydrodesulfurization （HDS） of dibenzothiophene （DBT） were evaluated. The results showed that Ni2P phase was present in all B-Ni2P/SBA-1 5/cord monolithic catalysts. The specific surface areas （SBET） of the B-Ni2P/SBA-15/cord monolithic catalysts was first increased to 167 m2· g-1, and then decreased to 155 m2· g-1 with the increase of boron contents. The catalytic activity also showed the similar trend with the increase of boron contents. The 1.75% （by mass） B-Ni2P/SBA-15/cord monolithic catalysts exhibited the highest DBT conversion of 98.4% at 380 ℃. The cordierite-based monolithic catalysts showed better low temperature sensitivity for HDS of DBT in comparison with the particle catalysts. Moreover, two HDS routes, direct desulfurization （DDS） and hydrogenation （HYD）, proceeded independently over B-Ni2P/SBA-15/cord monolithic catalysts and the main pathway was DDS.A series of B-Ni_2P/SBA-15,cord monolithic catalysts were prepared by coating the slurry of the B-Ni_2P/SBA-15 precursors on a pretreated cordierite support,and followed by temperature-programmed reduction in a H_2flow.The samples were characterized by X-ray diffraction(XRD) and N_2 adsorption-desorption technique.The catalytic activities for the hydrodesulfurization(HDS) of dibenzothiophene(DBT) were evaluated.The results showed that Ni_2P phase was present in all B-Ni_2P/SBA-15/cord monolithic catalysts.The specific surface areas(S_(Bet)) of the B-Ni_2P/SBA-15/cord monolithic catalysts was first increased to 167 m^3·g^(-1),and then decreased to 155 m^2·g^(-1) with the increase of boron contents.The catalytic activity also showed the similar trend with the increase of boron contents.The 1.75%(by mass) B-Ni2P/SBA-15/cord monolithic catalysts exhibited the highest DBT conversion of 98.4%at 380 ℃.The cordierite-based monolithic catalysts showed better low temperature sensitivity for HDS of DBT in comparison with the particle catalysts.Moreover,two HDS routes,direct desulfurization(DDS) and hydrogenation(HYD),proceeded independently over B-Ni2P/SBA-15/cord monolithic catalysts and the main pathway was DDS.

关 键 词：BORON NI2P SBA-15 CORDIERITE Monolithic catalyst HYDRODESULFURIZATION 

分 类 号：O643.36[理学—物理化学]