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| 1 | Fault diagnosis for distillation process based on CNN–DAE显示文摘Distillation is the most widely used operation for liquid mixture separation in the chemical industry. It is of great importance to detect and diagnose faults in distillation process. Due to the strong feedback and coupling of processes in a distillation column, it is difficult to use deep auto-encoders(DAEs) alone to achieve good results in detecting and diagnosing faults, in terms of accuracy and efficiency. This paper proposes a hybrid fault-diagnosis model based on convolutional neural networks(CNNs) and DAEs, by integrating the powerful capability of CNN in feature extraction and of DAE in classification. A case study was carried out with the distillation process of depropanization. It is shown that the proposed hybrid model is of good performance compared to other models, in terms of the accuracy of fault detection in such a process. Also, with the increase of structural layers of the CNN–DAE model, the diagnostic accuracy will be improved, with an optimal accuracy of 92.2%. | Chuankun Li Dongfeng Zhao Shanjun Mu Weihua Zhang Ning Shi Lening Li | 2019 | Chinese Journal of Chemical Engineering2019，27，3： | 12 |
| 2 | into the Role of Additives in Catalytic Synthesis of Insight Cyclohexylamine from Nitrobenzene显示文摘Cyclohexylamine is a versatile intermediate in various chemical industries,which can be expediently synthesized via hydrogenation of aniline or nitrobenzene.However,such processes always suffer from side reactions.Many reports have found that specific additives can suppress the formation of side products,but the mechanism is still not clear.In this work,results suggest that it is the hydroxide ion of alkali metal hydroxides,rather than the cations,which plays a key role in suppressing the side reactions on supported Ru-based catalysts.With the assistance of LiOH,the selectivity toward cy- clohexylamine increased from 85.4% to 100%.Side products,such as dicyciohexylamine,cyclohexanol and N-isopropyl cyclohexylamine,could no longer be detected.Theoretical calculations further disclosed that addition of alkali metal hydroxides inhibited the dissociation of enamine and decreased the adsorption energy of cyclohexylamine,which might be the reasons for a better selectivity.However,the addition of alkali metal hydroxides reduced the activity of nitrobenzene hydrogenation by unfolding the condensation reaction route.To recover or even further enhance the catalytic performance,a second metal component was introduced and the resultant RuNi/AC exhibited a significant improvement in activity compared with Ru/AC. | Xuefeng Li Zhe Wang Shanjun Mao Yiqing chen Minghui Tang Haoran Li Yong Wang | 2018 | Chinese Journal of Chemistry2018，36，12： | 4 |
| 3 | Cooperative Assembly of Asymmetric Carbonaceous Bivalve-Like Superstructures from Multiple Building Blocks显示文摘Te assembly of superstructures from building blocks is of fundamental importance for engineering materials with distinct morphologies and properties,and deepening our understanding of self-assembly processes in nature.Up to now,it is still a great challenge in materials science to construct multiple-component superstructure with unprecedented architectural complexity and symmetry from molecular.Here,we demonstrate an improved one-pot hydrothermal carbonization of biomass strategy that is capable of fabricating unprecedented asymmetric carbonaceous bivalve-like superstructures with in suit generated solid particles and ordered porous polymers as two kinds of building blocks.In our system,diferent building blocks can be controllably generated,and they will assemble into complex superstructures through a proposed“cooperative assembly of particles and ordered porous polymers”mechanism.We believe that this assembly principle will open up new potential felds for the synthesis of superstructures with diverse morphologies,compositions,and properties. | Lei Xie Haiyan Wang Chunhong Chen Shanjun Mao Yiqing Chen Haoran Li Yong Wang | 2018 | Research2018，，1： | 2 |
| 4 | Fine particle-bound PAHs derivatives at mountain background site(Mount Tai)of the North China:Concentration,source diagnosis and health risk assessment显示文摘Ten nitrated polycyclic aromatic hydrocarbons(nPAHs)and 4 oxygenated polycyclic aromatic hydrocarbons(oPAHs)in fine particulate matter(PM2.5)samples from Mount Tai were analyzed during summer(June to August),2015.During the observation campaign,themean concentration of total nPAHs and oPAHs was 31.62 pg/m^(3)and 0.15 ng/m^(3),respectively.Two of the monitored compounds,namely 9-nitro-anthracene(9N-ANT)(6.86 pg/m^(3))and 9-fluorenone(9FO)(0.05 ng/m^(3))were the predominant compounds of nPAHs and oPAHs,respectively.The potential source and long-range transportation of nPAHs and oPAHs were investigated by the positive matrix factorization(PMF)method and the potential source contribution function(PSCF)methods.The results revealed that biomass/coal burning,gasoline vehicle emission,diesel vehicle emission and secondary formation were the dominant sources of nPAHs and oPAHs,which were mainly from Henan province and Beijing-Tianjin-Hebei region and Bohai sea.The incremental life cancer risk(ILCR)values were calculated to evaluate the exposure risk of nPAHs and oPAHs for three group people(infant,children and adult),and the values of ILCR were 7.02×10^(−10),3.49×10^(−9)and 1.41×10^(−8)for infant,children and adults,respectively.All these values were lower than the standard of EPA(Environmental Protection Agency)(<10−6),indicating acceptable health risk of nPAHs and oPAHs. | Lei Zhao Shanjun Song Penghui Li Jing Liu Jing Zhang Lei Wang Yaqin Ji Jinpeng Liu Liqiong Guo Jinbao Han | 2021 | Journal of Environmental Sciences2021，33，11： | 2 |
| 5 | Study on cure reaction of the blends of bismaleimide and dicyanate ester 显示文摘 | Xiaoyun Liu Yingfeng Yu Shanjun Li | 2006 | Polymer2006，47，11： | 1 |
| 6 | Viscoelastic phase separation in polyethersulfone modified bismaleimide resin 显示文摘 | Liu Xiaoyun Yu Yingfeng Li Shanjun | 2006 | European Polymer Journal2006，42，： | 1 |
| 7 | Morphology effect on water sorption behavior in a thermoplastic modified epoxy resin system显示文摘 | Li Liang Liu MoJun Li Shanjun | 2004 | Polymer2004，45，8： | 1 |
| 8 | Viscoelastic phase separation in polyethersulfone modified bismaleimeide resin 显示文摘 | Liu Xiaoyun Yu Yingfeng Li Shanjun | 2005 | European Polymer Journal2005，，10： | 1 |
| 9 | A new look at residential electricity demand using household expenditure data显示文摘 | Harrison Fell Shanjun Li Anthony Paul | 2014 | International Journal of Industrial Organization2014，，： | 1 |
| 10 | Viscoelastic phase separa-tion in polyethersulfone modified bismaleimide resin显示文摘 | Xiaoyun Liu Yingfeng Yu Shanjun Li | 2005 | European Polymer Journal2005，42，4： | 1 |
| 11 | Viscoelastic Phase Separation in Polyethersulfone Modified Bismaleimide Resin 显示文摘 | Liu Xiaoyun Yu Yingfeng Li Shanjun | 2006 | European Polymer Journal2006，42，4： | 1 |
| 12 | Study on cure reaction of the blends of bismaleimide and dicyanate ester显示文摘 | Xiaoyun Liu Yingfeng Yu Shanjun Li | 2006 | Polymer2006，47，： | 1 |
| 13 | Study on cure reaction of the blends of bismaleimide and dicyanate ester 显示文摘 | Liu Xiaoyun Yu Yingfeng Li Shanjun | 2006 | Polymer2006，47，11： | 1 |
| 14 | Morphology effect on water sorption behavior in a thermoplastic modified epoxy resin system显示文摘 | LI LIANG LIU MOJUN LI SHANJUN | 2004 | Polymer2004，45，8： | 1 |
| 15 | Morphology effect on water sorption behavior in a thermoplastic modified epoxy resin system显示文摘 | LI LIANG LIU MOJUN LI SHANJUN | 2004 | Polymer2004，45，8： | 1 |
| 16 | Study on cure reaction of the blends of bismaleimide and dicyanate ester 显示文摘 | Liu Xiaoyun Yu Yingfeng Li Shanjun | 2006 | Polymer2006，47，11： | 1 |
| 17 | Morphology effect on water sorption behavior in a thermoplastic modified epoxy resin system显示文摘 | Li Liang Liu Mojun Li Shanjun | 2004 | Polymer2004，45，8： | 1 |
| 18 | Studies on the Phase Separation of a Polyetherimide-modified Epoxy Resin,4 Kinetic Effect on the Phase Separation Mechanism of a Blend at Different Cure Rates显示文摘 | Peng Lingqing Cui Jun Li Shanjun | 2000 | Macromolecular Chemistry and Physics2000，201，6： | 1 |
| 19 | Study on cure reaction of the blends of bismaleimide and dicyanate ester 显示文摘 | Liu Xiaoyun Yu Yingfeng Li Shanjun | 2006 | Polymer2006，47，： | 1 |
| 20 | Study on cure reaction of the blends of bismaleimide and dicyanate ester显示文摘 | LIU XIAOYUN YU YINGFENG LI SHANJUN | 2006 | Polymer2006，47，11： | 1 |
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