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8篇 您的检索式:作者名="Sun Guida"
    题名 作者 年代 出处 被引量
1Preparation of Unsupported Molybdenum Phosphide Hydrofining Catalysts显示文摘LI Fengyan, ZHAO Tianbo, SUN Guida, LI Cuiqing (Department of Applied Chemistry, Beijing Institute of Petrochemical Technology, Beijing 102617, China) 2003催化学报2003,24,2:10
2Physicochemical Properties and Catalytic Performance of a Novel Aluminosilicate Composite Zeolite for Hydrocarbon Cracking Reaction显示文摘A novel micro-micro/mesoporous aluminosilicate ZSM-5-Y/MCM-41 composite molecular sieve with a MCM-41 type structure was synthesized through a novel process of the self-assembly of CTAB surfactant micellae with silica-alumina source originated from alkaline treatment of ZSM-5 zeolite.The physical properties of the ZSM-5- Y/MCM-41 composite molecular sieve were characterized by XRD,Py-FTIR and N_2 adsorption-desorption techniques. Different kinds of molecular sieves including ZSM-5,Y zeolite,Al-MCM-41,ZSM-5/MCM-41 and ZSM-5-Y/MCM- 41 as cracking catalysts were investigated,using 1,3,5-triisopropylbenzene(1,3,5-TIPB) as the probe molecule.Catalytic tests showed that the ZSM-5-Y/MCM-41 composite molecular sieve exhibited higher catalytic activity compared with the microporous ZSM-5 zeolite,Y zeolite,mesoporous Al-MCM-41 molecular sieve and ZSM-5/MCM-41 composite molecular sieve under the same conditions.The remarkable catalytic activity was mainly attributed to the presence of the hierarchical pore structure and proper acidity in the ZSM-5-Y/MCM-41 composite catalyst.Meanwhile, a carbenium ion mechanism was put forward for the cracking of 1,3,5-TIPB.Qi Jian Zhao Tianbo Xu Xin Li Fengyan Sun Guida 2010China Petroleum Processing & Petrochemical Technology2010,12,1:4
3Serum IGF-1 is insufficient to restore skeletal size in the total absence of the growth hormone receptor显示文摘Wu Y Sun H Basta-Pljakic J Cardoso L Kennedy OD Jasper H Domene H Karabatas L Guida C Schaffler MB Rosen CJ Yakar S 0,,:1
4Hydrothermal Synthesis and Mechanism for Formation of Novel Micro-Micro-Mesoporous Aluminosilicate Composite Zeolite显示文摘新奇 micro-micro-mesoporous 铝矽酸盐 LS-BFMZ (有 MCM-41 类型结构的 low-silica-BEA (贝它) -faujasite(Y)-mesoporous)composite 沸石通过包含的一个新奇过程被综合 selfassembly ,有硅石氧化铝的 CTAB 表面活化剂 micellae ,来源从贝它 zeolite.The 的碱的处理发源 LS-BFMZ 合成沸石的物理性质用各种各样的技术被描绘,包括 XRD ,红外和 SEM techniques.Meanwhile 。QiJian Zhao Tianbo Xu Xin Li Fengyan Sun Guida 2010China Petroleum Processing & Petrochemical Technology2010,12,3:1
5Study on physico- chemical properties and catalytic activity of BSiZrAPO- 5 catalysts in linear alkylbenzene synthesis显示文摘Peiyong Lian Wenyi Gao Fushan Yan Weqiao Liu Gong Li Haoping Wang Guida Sun 2002Catalysis today2002,74,:1
6Effect of Reduction Temperature on Hydrofining Performance of Supported Molybdenum Phosphide Catalyst显示文摘A series of supported molybdenum phosphide catalysts were prepared by impregnation method. XRD, TG-DTG, XPS and BET were used to study the phase, compositions and surface areas of the prepared catalysts. A model reactant containing thiophene, pyridine and cyclohexene was used for the measurements of catalytic activities. The effect of reduction temperature on catalytic activities was in- vestigated. The analysis results by XRD and BET are very different when the reduction temperature is changed from 400 to 900 °C. MOP/γ-Al2 O3 catalysts and CoMoP/γ-Al2O3 catalysts prepared at the reduction temperature of 500 °C are the most active ones.Fengyan Li Zhifang Zhao Qingjie Li Tianbo Zhao Cuiqing Li Guida Sun 2005Journal of Natural Gas Chemistry2005,14,4:0
7Synthesis, characterization and hydrotreating performance of supported tungsten phosphide catalysts显示文摘Supported tungsten phosphide catalysts were prepared by temperature-programmed reduction of their precursors(supported phospho-tungstate catalysts)in H2 and characterized by X-ray diffraction(XRD),BET,temperature-programmed desorption of ammonia(NH3-TPD)and X-ray photoelectron spectroscopy(XPS).The reduction-phosphiding processes of the precursors were investigated by thermogravimetry and differential thermal analysis(TG-DTA)and the suitable phosphiding temperatures were defined.The hydrodesulfurization(HDS)and hydrodenitrogenation(HDN)activities of the catalysts were tested by using thiophene,pyridine,dibenzothiophene,carbazole and diesel oil as the feedstock.The TiO2,c-Al_(2)O_(3) supports and the Ni,Co promoters could remarkably increase and stabilize active W species on the catalyst surface.A suitable amount of Ni(3%–5%),Co(5%–7%)and V(1%–3%)could increase dispersivity of the W species and the BET surface area of the WP/c-Al_(2)O_(3) catalyst.The WP/c-Al_(2)O_(3) catalyst possesses much higher thiophene HDS and carbazole HDN activities and the WP/TiO2 catalyst has much higher dibenzothiophene(DBT)HDS and pyridine HDN activities.The Ni,Co and V can obviously promote the HDS activity and inhibit the HDN activity of the WP/c-Al_(2)O_(3) catalyst.The G-Ni5 catalyst possesses a much higher diesel oil HDS activity than the sulphided industrial NiW/c-Al_(2)O_(3) catalyst.In general,a support or promoter in the WP/c-Al_(2)O_(3) catalyst which can increase the amount and dispersivity of the active W species can promote its HDS and HDN activities.Guida SUN Cuiqing LI Zhijun ZHOU Fengyan LI 2008Frontiers of Chemical Science and Engineering2008,2,2:0
8Study on Synthesis and Catalytic Performance of Hierarchical Zeolite显示文摘一种层次沸石催化剂被热水的方法综合。X 光检查衍射(XRD ) 和氮吸附解吸附作用方法被用来学习阶段和准备催化剂的孔结构。在样品上吸附的 pyridine 的 Infrared (红外) 系列证明层次沸石确实有更多 Bronsted 和路易斯酸的地点比 HZSM-5 沸石。大烃分子的催化裂开证明层次沸石比 HZSM-5 沸石举办了一项更高催化的活动。Zhang Lingling Li Fengyan ZhaoTianbo Sun Guida 2007China Petroleum Processing & Petrochemical Technology2007,9,3:0
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