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| 1 | Study on Relationship between Microstructure of Active Phase and HDS Performance of Sulfided Ni-Mo Catalysts: Effect of Metal Loading显示文摘Six Ni-Mo catalysts with different metal contents were prepared and characterized by N2 adsorption and X-ray diffractometry. The active phase microstructure of these catalysts was examined by the Raman spectroscopy, temperatureprogrammed reduction(TPR), X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy. Hydrodesulfurization(HDS) activity of catalyst samples were analyzed in a flow fixed-bed microreactor. The sulfidation degree of Mo and the length of the MoS2 slab slightly increased with the amount of metal loaded following sulfidation. This small change is attributed to polymolybdate species observed in all the oxidized catalysts. Weak metal-support interactions, as determined by the TPR technique, increased the NiSx sulfidation phase and MoS2 slab stacking. The HDS activity of the catalyst samples increased with the number of active sites. For high metal loading catalysts, their HDS activity was nearly identical because the sulfur atoms cannot easily approach active sites. This change is caused by the large number of stacked layers in the MoS2 slabs as well as the decrease in the specific surface area and pore volume of the catalyst samples with an increasing metal loading. | Guo Rong Shen Benxian Fang Xiangchen Sun Jin Peng Chong Cui Xiaoli | 2014 | China Petroleum Processing & Petrochemical Technology2014，16，2： | 21 |
| 2 | Development of Light Cycle Oil(LCO) Hydrocracking Technology over a Commercial W-Ni Based Catalyst显示文摘Because of its high density and low cetane number, the light cycle oil(LCO) containing heavy aromatics(60%—80%) can hardly be transformed through the conventional hydro-upgrading technology. In this report, a novel LCO hydrocracking technology(FD2G) was proposed for the utilization of LCO to manufacture high value-added products. Through the ingenious combination of hydroprocessing catalyst and the hydrocracking process, the high octane gasoline and the ultra-low sulfur diesel(ULSD) blendstocks were produced simultaneously. The influence of catalyst type, reaction temperature, pressure, respectively, on the research octane number(RON) of produced gasoline was studied in a fixed bed hydrogenation reactor. It indicated that high reaction temperature and medium pressure would favor the production of highoctane gasoline through the conversion of bi-aromatic and tri-aromatic hydrocarbons. The typical results of FD2 G technology on commercial units showed that it could produce clean diesel with a sulfur content of less than 10 μg/g and clean gasoline with a research octane number(RON) of up to 92. It would be contributed to the achievement of the maximum profit of a refinery, the FD2 G technology could provide a higher economic efficiency than the other diesel quality upgrading technology under the current gasoline and diesel price system. | Peng Chong Yang Xuejing Fang Xiangchen Huang Xinlu Cheng Zhenmin Zeng Ronghui Guo Rong | 2015 | China Petroleum Processing & Petrochemical Technology2015，17，4： | 9 |
| 3 | Application of Discrete Lumped Kinetic Modeling on Vacuum Gas Oil Hydrocracking显示文摘The kinetic model of vacuum gas oil (VGO) hydrocracking based on discrete lumped approach was investigated, and some improvement was put forward at the same time in this article. A parallel reaction scheme to describe the conversion of VGO into products (gases, gasoline, and diesel) proposed by Orochko was used. The different experimental data were analyzed statistically and then the product distribution and kinetic parameters were simulated by available data. Furthermore, the kinetic parameters were correlated based on the feed property, reaction temperature, and catalyst activity. An optimization code in Matlab 2011b was written to fine-tune these parameters. The model had a favorable ability to predict the product distribution and there was a good agreement between the model predictions and experiment data. Hence, the kinetic parameters indeed had something to do with feed properties, reaction temperature and catalyst activity. | Han Longnian Fang Xiangchen Peng Chong Zhao Tao | 2013 | China Petroleum Processing & Petrochemical Technology2013，15，2： | 8 |
| 4 | Simultaneous recovery of carbon and sulfur resources from reduction of CO_2 with H_2S using catalysts显示文摘An approach to the simultaneous reclamation of carbon and sulfur resources from CO_2 and H_2S has been proposed and effectively implemented with the aid of catalysts. A brief thermodynamic study reveals the potential of direct reduction of CO_2 with H_2S(15:15 mol% balanced with N_2) for selective production of CO and elemental sulfur. The experiments carried out in a fixed-bed flow reactor over the temperature range of 400–800 °C give evidence of the importance of the employment of catalysts. Both the conversions of the reactants and the selectivities of the target products can be substantially promoted over most catalysts studied. Nevertheless, little difference appears among their catalytic performance. The results also prove that the presence of CO_2 can remarkably enhance H_2S conversion and the sulfur yield in comparison with H_2S direct decomposition. A longtime reaction test on Mg O catalyst manifests its superior durability at high temperature(700 °C) and huge gas hourly space velocity(100,000 h-1). Free radicals initiated by catalysts are supposed to dominate the reactions between CO_2 and H_2S. | Hui Su Yuyang Li Ping Li Yongxiu Chen Zhizhi Zhang Xiangchen Fang | 2016 | Journal of Energy Chemistry2016，25，1： | 5 |
| 5 | Regulating catalyst morphology to boost the stability of Ni–Mo/Al_(2)O_(3) catalyst for ebullated-bed residue hydrotreating显示文摘Hydrotreating of vacuum residue by ebullated-bed shows tremendous significance due to more stringent environmental regulations and growing demand for lighter fuels. However, enhancing the catalyst stability still remains as a challenging task. Herein, two Ni–Mo/Al_(2)O_(3) catalysts with distinct morphologies(i.e., spherical and cylindrical) were first designed, and the morphology effect on deactivation was systematically elucidated employing multi-characterizations, such as HRTEM with EDX mapping, electron microprobe analysis, FT-IR, TGA and Raman. It is found that spherical catalyst exhibits superior hydrotreating stability over 1600 h. The carbonaceous deposits on spherical catalyst with less graphite structure are lighter, and the coke weight is also smaller. In addition, the metal deposits uniformly distribute in the spherical catalyst, which is better than the concentrated distribution near the pore mouth for the cylindrical catalyst. Furthermore, the intrinsic reason for the differences was analyzed by the bed expansion experiment. Higher bed expansion rate together with the better mass transfer ability leads to the enhanced performance. This work sheds new light on the design of more efficient industrial hydrotreating catalyst based on morphology effect. | Huihong Zhu Zhiwei Mao Bin Liu Tao Yang Xiang Feng Hao Jin Chong Peng Chaohe Yang Jifeng Wang Xiangchen Fang | 2021 | Green Energy & Environment2021，6，2： | 4 |
| 6 | Separation-and-Recovery Technology for Organic Waste Liquid with a High Concentration of Inorganic Particles显示文摘 | Hualin Wang Pengbo Fu Jianping Li Yuan Huang Ying Zhao Lai Jiang Xiangchen Fang Tao Yang Zhaohui Huang Cheng Huang | 2018 | Engineering2018，4，3： | 3 |
| 7 | Development and application of ex-situ presulfurization technology for hydrotreating catalysts in China显示文摘The development and application of ex-situ presulfurization(EPRES)technology for hydrotreating catalysts has been reviewed in the present article.The studies in laboratory scale and commercial practice indicated that the adoption of the EPRES catalyst in industrial application can significantly enhance the degree of presulfurization of metal oxide components,shorten the start-up period,and effectively reduce the environmental impact as well as the danger of start-up procedure in industrial hydrotreating unit.This catalyst has been proved to be versatile for different types of hydrogenation reactions.Different types of active site models are also discussed for better understanding the nature of presulfur-ized catalysts. | Yulan GAO Xiangchen FANG Zhenmin CHENG | 2011 | Frontiers of Chemical Science and Engineering2011，5，3： | 2 |
| 8 | Experimental Study of Integrated Ebullated-bed and Fixed-bed for Hydrotreating Mid-Low Temperature Coal Tar to Clean Fuel显示文摘A new hydrotreating technology integrating the ebullated-bed(EB) and the fixed-bed(FB) hydrogenation was proposed to investigate the efficiency for hydrotreating mid- low-temperature coal tar to clean fuel, and multiple tests at the bench scale were carried out. The results showed that the distillates obtained from EB reactors were greatly upgraded and could meet the requirements of FB unit without discarding any tail oil. The naphtha produced from FB reactors could be fed to the catalytic reforming unit, while a high quality diesel was also obtained. The unconverted oil(UCO) could be further hydrocracked to clean fuel. It is found that the removal of impurities from the coal tar oil is related with the molecular aggregation structure and composition of the coal tar. Application of the integrated hydrotreating technology to the hightemperature coal tar processing demonstrated that more than half of heavy components could be effectively upgraded. | Meng Zhaohui Yang Tao Fang Xiangchen | 2016 | China Petroleum Processing & Petrochemical Technology2016，18，3： | 2 |
| 9 | Deep removal of sulfur and aromatics from diesel through two-stage concurrently and countercurrently operated fixed-bed reactors显示文摘 | Cheng Zhenmin Fang Xiangchen | 2004 | Chemical Engineering Science2004，59，2223： | 1 |
| 10 | Evalu ation on the dependence of multiphase flow and reaction upon the morphology of a porous media network 显示文摘 | Cheng Zhenmin Fang Xiangchen Zhou Zhiming | 2007 | Ind Eng Chem Res2007，46，25： | 1 |
| 11 | Performance of Ni-based, Fe-based and Co-based Oxygen Carriers in Chemical-Looping Hydrogen Generation显示文摘Ni-based, Fe-based and Co-based oxygen carriers with perovskite oxides used as the supports were prepared by citric acid complexation method. The oxygen carriers were characterized by thermal analysis, H2-temperature-programmed reduction and X-ray diffraction methods. Performance tests were evaluated through Chemical-Looping Hydrogen Generation in a fixed-bed reactor operating at atmospheric pressure. The characterization results showed that all samples were composed of metal oxides and perovskite oxides. Performance results indicated that CH4 conversion over the oxygen carriers decreased in the following order: NiO/LaNiO3 >Co2O3 /LaCoO3 >Fe2O3 /LaFeO3 . The ability of NiO/LaNiO3 and Fe2O3 / LaFeO3 to decompose water was stronger than that of Co2O3 /LaCoO3 as evidenced by our experiments. H2 amounting to 80 mL upon reacting on methane in every cycle could be completely oxidized by NiO/LaNiO 3 at 900 ℃ in the period from the third cycle to the eighth cycle. | Liang Hao Zhang Xiwen Fang Xiangchen Yuan Honggang | 2013 | China Petroleum Processing & Petrochemical Technology2013，15，2： | 1 |
| 12 | Optimal pH contro'l strategy for high - level production of long - chain a, to - dicarboxylic acid by Candidatropicalis显示文摘 | Shunchen Liu Churl Li Xiangchen Fang | 2004 | Enzyme and Microbial Technology2004，34，： | 1 |
| 13 | A facile method for the fabrication of IM-5 hollow zeolite sphere in emulsion system显示文摘 | Lei Wang Weiya Yang Fengxiang Ling Zhiqi Shen Ruochen Yang Wanfu Sun Xiangchen Fang Honghai Ji | 2012 | Microporous and Mesoporous Materials2012，，： | 1 |
| 14 | Simulation and Optimization of Cracked Gasoline Hydrofining Process显示文摘SimulationandOptimizationofCrackedGasolineHydrofiningProcesFangXiangchen,WangYan(FushunResearchInstituteofPetroleumandPetroch... | Fang Xiangchen , Wang Yan (Fushun Research Institute of Petroleum and Petrochemical, Fushun 113001) | 1997 | 石油学报(石油加工)1997，13，S1： | 0 |
| 15 | A Kinetic Model for Hydrocracking Process显示文摘AKineticModelforHydrocrackingProcesWuXizhong,LiChenglie,FangXiangchen,ChangZhenming(EastChinaUniversityofScience&Technology,S... | Wu Xizhong, Li Chenglie, Fang Xiangchen, Chang Zhenming (East China University of Science & Technology, Shanghai 200237) | 1997 | 石油学报(石油加工)1997，13，S1： | 0 |
| 16 | Thermodynamics and kinetics insights into naphthalene hydrogenation over a Ni-Mo catalyst显示文摘Hydrocracking represents an important process in modern petroleum refining industry,whose performance mainly relies on the identity of catalyst.In this work,we perform a combined thermodynamics and kinetics study on the hydrogenation of naphthalene over a commercialized NiMo/HY catalyst.The reaction network is constructed for the respective production of decalin and methylindane via the intermediate product of tetralin,which could further undergo hydrogenation to butylbenzene,ethylbenzene,xylene,toluene,benzene,methylcyclohexane and cyclohexane.The thermodynamics analysis suggests the optimum operating conditions for the production of monoaromatics are 400℃,8.0 MPa,and 4.0 hydrogen/naphthalene ratio.Based on these,the influences of reaction temperature,pressure,hydrogen/-naphthalene ratio,and liquid hourly space velocity(LHSV)are investigated to fit the Langmuir-Hinshelwood model.It is found that the higher temperature and pressure while lower LHSV favors monoaromatics production,which is insensitive to the hydrogen/naphthalene ratio.Furthermore,the high consistence between the experimental and simulated data further validates the as-obtained kinetics model on the prediction of catalytic performance over this kind of catalyst. | Chong Peng Zhiming Zhou Xiangchen Fang Hualin Wang | 2021 | Chinese Journal of Chemical Engineering2021，34，11： | 0 |
| 17 | Research and development of hydrocracking catalysts and technologies in China显示文摘Hydrocracking of petroleum feedstock represents a compelling route for the production of industrial clean fuels,which has triggered the continuous research and development of core technology related areas such as catalysts,reaction engineering and engineering design.This review particularly focuses on the research and development of catalysts and catalytic processes for hydrocracking of petroleum feedstock in China.Hydroprocessing technologies of China keep pace with the up-to-date progress of the world,and some of the technologies have achieved leading role in the world.It is noted that China Petroleum and Chemical Corporation has a full range of hydroprocessing technologies and provides corresponding 'tailor-made' catalysts.Through the efforts of several generations,20 categories of the catalysts including more than 60 brands have been developed,among which more than 40 brands have been successfully applied for more than 130 times.Importantly,the pivotal technical improvements including the deep drawing vacuum gas-oil (VGO) and de-asphalting oil hydrocracking technology to improve material adaptability,the high value-added hydrogenation technology to convert high aromatic diesel conversion to naphtha,the hydrocracking technology using VGO-catalytic diesel blends,the Fushun Research Institute of Petroleum and Petrochemicals' diesel to gasoline and diesel hydrocracking technologies,and the Sheer hydrocracking technology to reduce energy are reviewed. | Chong Peng Yanze Du Xiang Feng Yongkang Hu Xiangchen Fang | 2018 | Frontiers of Chemical Science and Engineering2018，12，4： | 0 |
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