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学者姓名：杨臣
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To cope with small production quantities of specialized chemicals, modular production plants have gained increasing attention in recent years. Zero-gravity distillation (ZGD) is a small-scale distillation process, which offers high separation efficiency, proving advantageous for modularizing processes. In this research, the study of ZGD process intensification is conducted. A ZGD experimental setup was established and the separation of ethanol/water mixtures was chosen as an example to investigate the effects of metal foam material, liquid filling rate, and PPI of metal foam on the separation performance, which was quantified by height equivalent to a theoretical plate (HETP). The results reveal that under constant feed volume (50 ml) and the mole fraction of ethanol (0.2), employing 40 PPI copper foam and 100 % liquid filling rate results in HETP of 5.56 cm for ZGD unit, demonstrating superior separation performance. Subsequently, an optimization strategy adopting sandwich internal structure with ordered hierarchical meta foam is proposed to further intensify the separation process. In contrast to the case of employing 40 PPI copper foam and liquid filling rate of 100 %, the optimization strategy can further reduce HETP by approximately 18.17 %, being 4.55 cm. This finding provides a theoretical foundation and technical guidance for developing zero-gravity distillation technology.
Keyword ：
Height equivalent to a theoretical plate (HETP) Height equivalent to a theoretical plate (HETP) Ordered hierarchical metal foam Ordered hierarchical metal foam Process intensification Process intensification Sandwich internal structure Sandwich internal structure Separation performance Separation performance Zero-gravity distillation (ZGD) Zero-gravity distillation (ZGD)
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| GB/T 7714 | Lin, Yixiong , Huang, Zhibin , Jiang, Pengze et al. Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 360 . |
| MLA | Lin, Yixiong et al. "Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam" . | SEPARATION AND PURIFICATION TECHNOLOGY 360 (2025) . |
| APA | Lin, Yixiong , Huang, Zhibin , Jiang, Pengze , Wang, Qinglian , Yin, Wang , Yang, Chen et al. Separation process intensification for zero-gravity distillation through sandwich internal structure with ordered hierarchical metal foam . | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 360 . |
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The C2-O cleavage of furanic ring is the crucial step in selective hydrogenation of furfuryl alcohol (FOL) to 1,5pentanediol (1,5-PDO). In this study, reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy (Ov) and different Co/Ni molar ratios were prepared through intercalation modification of Co-based hydrotalcite by ammonium citrate (CA), followed by calcination and reduction. The catalytic performance exhibited that a quantitative conversion of FOL with 44.4 % yield and 8.2 mmol1,5-PDO & sdot;gcat -1 & sdot;h- 1 productivity of 1,5-PDO were achieved by using Co2Ni1Al1Ox-CA(0.1) (molar ratio of Co:Ni = 2:1; molar concentration ratio of CA:Na2CO3 = 0.1) under optimal conditions. The stability test showed that Co2Ni1Al1Ox-CA(0.1) consistently rendered above 40 % yield of 1,5-PDO in seven consecutive cycles. Catalyst characterizations were carried out using a series of techniques including XPS, EPR, O2-TPD, etc. The results demonstrate that the addition of CA effectively altered the surface molar ratios of Co2+/(Co2++Co3+), thereby regulating the Ov content of the obtained catalysts. The CoO-Ov sites in the catalyst might enhance the adsorption of FOL by eta 1-(O)-alcoholic model, which weakened C2O bond on the furanic ring of FOL. Besides, the H2-TPD anslysis confirmed that the enhanced spillover of hydrogen from Ni0 onto CoO-Ov site, thereby promoting the cleavage of the C2-O bond in FOL and subsequent hydrogenation of enol intermediates. In addition, the DFT calculations imply that FOL adsorption on CoO-Ov site by eta 1-(O)-alcoholic model was significantly favorable than that on pristine CoO sites (-1.68 eV versus -1.55 eV). Consequently, this study has substantiated the crucial role played by CoO-Ov in the reaction pathway leading to 1,5-PDO formation via FOL, proposing a viable scheme for designing catalysts based on transition metals and elucidating their underlying reaction mechanism.
Keyword ：
1,5-pentanediol 1,5-pentanediol Furfuryl alcohol Furfuryl alcohol Oxygen vacancy Oxygen vacancy Reduced mixed metal oxide catalysts Reduced mixed metal oxide catalysts Selective hydrogenation Selective hydrogenation
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| GB/T 7714 | Xi, Nan , Li, Qiwang , Chen, Yi et al. Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 . |
| MLA | Xi, Nan et al. "Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol" . | CHEMICAL ENGINEERING JOURNAL 512 (2025) . |
| APA | Xi, Nan , Li, Qiwang , Chen, Yi , Bao, Ruixi , Wang, Qinglian , Lin, Yixiong et al. Reduced mixed Ni-Co-Al metal oxide catalysts with rich oxygen vacancy derived from layered double hydrotalcite for selective hydrogenation of furfuryl alcohol to 1,5-Pentanediol . | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 . |
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Dry reforming of methane (DRM), which is a viable approach for carbon capture and utilization, is notably inclined towards carbon deposition due to the formation of cold spots, causing catalyst rapid deactivation, thereby limiting its industrial application. In order to prevent catalyst coking, it is imperative to improve the heat and mass transfer processes in DRM reactors. A foam reactor with hierarchical pore structure was proposed in this work, which is composed of fine and coarse pores and avoids contact thermal resistance due to the contact of foam structures with different pore sizes. Based on lattice Boltzmann model, this work investigated the impact of hierarchical pore structure on the heat and mass transfer, as well as DRM reaction in Ni/Al2O3 based foam reactors. The findings suggest an optimal overall heat transfer coefficient with the variation of dcoarse/dfine under equal pumping power. Furthermore, it reveals a synergistic mechanism between the heat and mass transfer processes, identifying an optimal hierarchical pore structure which, compared to uniform fine and coarse pore structures, facilitates an enhancement in reaction performance by 14.1 % and 13.0 %, respectively. This work provides a theoretical foundation and technical direction for the design of foam reactors.
Keyword ：
Dry reforming of methane Dry reforming of methane Foam reactor Foam reactor Heat and mass transfer Heat and mass transfer Hierarchical pore structure Hierarchical pore structure Lattice Boltzmann method Lattice Boltzmann method
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| GB/T 7714 | Lin, Yixiong , Yu, Minkai , Wang, Qinglian et al. Unraveling the structure-performance relationship of foam reactor with hierarchical pore structure for dry reforming of methane reaction [J]. | FUEL , 2025 , 389 . |
| MLA | Lin, Yixiong et al. "Unraveling the structure-performance relationship of foam reactor with hierarchical pore structure for dry reforming of methane reaction" . | FUEL 389 (2025) . |
| APA | Lin, Yixiong , Yu, Minkai , Wang, Qinglian , Zhang, Wei , Yin, Wang , Yang, Chen et al. Unraveling the structure-performance relationship of foam reactor with hierarchical pore structure for dry reforming of methane reaction . | FUEL , 2025 , 389 . |
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Given the rising demand for cyclohexanol in the nylon industry and the escalating issues of high production costs and potential environmental harm in traditional cyclohexanol production, developing a safe, environmentally friendly, and cost-effective process for producing cyclohexanol from cyclohexene is crucial. In addition, the different composition of intermediates will significantly affect the economy of each reaction unit. Therefore, this study proposed a novel reactive distillation process involving esterification, transesterification, and hydrolysis. Three reactive distillation processes of 1000 t/a capacity of cyclohexanol production with different purity intermediates were designed and optimized using a sequential iterative algorithm to minimize the total annual cost, which amounted to 422116.65 $/a. Furthermore, the energy consumption and environmental emissions were compared after optimization. By comparing the influence of various purity intermediates on each process unit, it was qualitatively determined that higher purity requirements did not necessarily yield superior results. Finally, to quantify the influence of each variable on economic performance of whole process, response surface method was performed using central composite design for minimum total annual cost objectives with a 3.25 % error between model and simulation. This study aims to guide the development of a comprehensive, costeffective, and efficient reactive distillation process for cyclohexanol production.
Keyword ：
Cyclohexanol Cyclohexanol Different purity intermediates Different purity intermediates Process intensification Process intensification Reactive distillation Reactive distillation Response surface methodology Response surface methodology
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| GB/T 7714 | Hou, Zhengkun , Wang, Na , Ding, Qiuyan et al. Economic and environmental assessment of reactive distillation process for cyclohexanol production with different purity intermediates [J]. | ENERGY , 2025 , 317 . |
| MLA | Hou, Zhengkun et al. "Economic and environmental assessment of reactive distillation process for cyclohexanol production with different purity intermediates" . | ENERGY 317 (2025) . |
| APA | Hou, Zhengkun , Wang, Na , Ding, Qiuyan , Li, Hong , Qiu, Ting , Wang, Hongxing et al. Economic and environmental assessment of reactive distillation process for cyclohexanol production with different purity intermediates . | ENERGY , 2025 , 317 . |
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Catalytic hydrotreatment is a promising technique to upgrade pyrolysis liquids (PLs) with undesired properties into intermediate that can be co-processed with vacuum gas oil in FCC refinery. Highly active catalysts are key in such a process. In this study, a ruthenium-based catalyst possessing both single-atomic and nanocluster sites supported on hierarchically porous nitrogen-doped carbon (Ru1+NPs/HPNC) was prepared by a two-step alcohol reduction method. Catalytic performance was evaluated for both model compound vanillin (VL) and PLs in a batch autoclave. The model compound study showed that Ru1+NPs/HPNC exhibited excellent intrinsic activity in VL hydrogenation, with a TOF of 26.9 s−1, which is approximately 3 times higher than that of Ru1/HPNC (8.4 s−1) and RuNPs/HPNC (8.8 s−1), and 6 times that of Ru/AC (4.2 s−1). Catalytic hydrotreatment of PLs indicated that Ru1+NPs/HPNC possessed the best activity regarding to the highest H/C ratio (mild hydrotreatment: 1.33; deep hydrotreatment: 1.29) and the lowest TG residue (mild hydrotreatment: 14.4 wt%; deep hydrotreatment: 6.5 wt%) of the product oils. To obtain understanding of the synergistic effect between single-atoms and nanoclusters, the adsorption of VL and H2 on the catalyst was examined by ATR-FTIR and DFT calculations. The results revealed that VL is preferentially adsorbed and activated on the single-atomic sites, while the H2 is preferentially dissociated on the nanocluster sites. Based on these findings, a plausible mechanism is proposed. This study offers new ideas for developing better-performing catalysts for catalytic hydrotreatment of PLs. © 2025 Elsevier Ltd
Keyword ：
Nanocatalysts Nanocatalysts Nanoclusters Nanoclusters Pyrolysis Pyrolysis
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| GB/T 7714 | Zhu, Xingchao , Gan, Zhiwei , Wang, Yueqi et al. The synergistic effect between Ru single-atomic sites and nanoclusters during catalytic hydrotreatment of fast pyrolysis liquids from lignocellulosic biomass [J]. | Chemical Engineering Science , 2025 , 315 . |
| MLA | Zhu, Xingchao et al. "The synergistic effect between Ru single-atomic sites and nanoclusters during catalytic hydrotreatment of fast pyrolysis liquids from lignocellulosic biomass" . | Chemical Engineering Science 315 (2025) . |
| APA | Zhu, Xingchao , Gan, Zhiwei , Wang, Yueqi , Xi, Nan , Wang, Qinglian , Lin, Yixiong et al. The synergistic effect between Ru single-atomic sites and nanoclusters during catalytic hydrotreatment of fast pyrolysis liquids from lignocellulosic biomass . | Chemical Engineering Science , 2025 , 315 . |
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This work underscores the critical importance of enhancing the mass transfer performance of catalyst particles for the production of n-butyl levulinate (BL) from levulinic acid (LA). The lattice Boltzmann method was proposed to investigate the relationship between pore structure and mass transfer, thereby guiding the rational design of high-performance catalyst. Furthermore, a novel catalyst regulation strategy was introduced, utilizing UiO-66 as a template to fabricate a series of catalysts, UiOxD40H160-SO3H. This strategy allows for the regulation of the pore structure of resin catalysts over a broader range and successfully enhanced the mass transfer performance. Among the synthesized catalysts, the LA conversion efficiency with UiO0.4D40H160-SO3H under mild reaction conditions increased by an average of 18.1% compared to the previously reported best-performing Dowex 50Wx2 resin catalyst. These findings provide valuable new insights into the production of BL while also highlighting the potential of the proposed catalyst design strategy for industrial applications. © 2025 Elsevier Ltd
Keyword ：
Crystal lattices Crystal lattices Diffusion in liquids Diffusion in liquids Diffusion in solids Diffusion in solids Osmosis Osmosis Thermal diffusion Thermal diffusion
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| GB/T 7714 | Xiong, Peiyun , Shi, Yong , Yang, Chen et al. Pore structure design and mass transfer optimization of resin catalysts based on lattice Boltzmann method for n-butyl levulinate synthesis [J]. | Chemical Engineering Science , 2025 , 314 . |
| MLA | Xiong, Peiyun et al. "Pore structure design and mass transfer optimization of resin catalysts based on lattice Boltzmann method for n-butyl levulinate synthesis" . | Chemical Engineering Science 314 (2025) . |
| APA | Xiong, Peiyun , Shi, Yong , Yang, Chen , Lin, Yixiong , Yin, Wang , Huang, Zhixian et al. Pore structure design and mass transfer optimization of resin catalysts based on lattice Boltzmann method for n-butyl levulinate synthesis . | Chemical Engineering Science , 2025 , 314 . |
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Hydrogen enriched natural gas represents an important pathway for achieving low-carbon and green transformation in the domestic gas sector. However, the flame tends to become unstable when a large proportion of hydrogen is blended. To investigate the flame instability mechanisms, a model for the diffusion combustion of hydrogen-enriched natural gas in porous media has been established based on a simplified reaction mechanism. Model validation through temperature and oxygen mole fraction comparisons demonstrated maximum and average errors of 4.1 % and 1.5 %, respectively. These error ranges were confirmed to be within acceptable accuracy limits, indicating that the established numerical model effectively represents the actual combustion processes. Additionally, a novel flashback identification method was proposed based on flashback classification. Numerical analyses were conducted to investigate the mechanisms of flashback occurrence during the combustion process of hydrogen-enriched natural gas under critical hydrogen blending ratios. The results indicate that the flashback mode within the burner is characterized as boundary layer flashback. Consequently, the peak temperature judgment method can be effectively employed to detect the occurrence of flashback within the burner. When the hydrogen blending ratio reaches 40 %, some reactions will occur within the porous medium, leading to a sharp increase in OH radical concentrations, which ultimately results in flashback phenomena. Additionally, the transition in combustion modes can cause insufficient oxygen replenishment in certain areas, thereby causing a dramatic increase in CO production. This study provides theoretical guidance and technical support for the application and promotion of hydrogen enriched natural gas in household gas appliances. © 2025
Keyword ：
Convergence of numerical methods Convergence of numerical methods Free radical reactions Free radical reactions Fuel burners Fuel burners Gas industry Gas industry
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| GB/T 7714 | Wan, Zhongmin , Niu, Jie , Huang, Taiming et al. Study on the mechanism of flame instability and pollutant formation in porous diffusion combustion of hydrogen enriched natural gas for domestic burner [J]. | Fuel , 2025 , 398 . |
| MLA | Wan, Zhongmin et al. "Study on the mechanism of flame instability and pollutant formation in porous diffusion combustion of hydrogen enriched natural gas for domestic burner" . | Fuel 398 (2025) . |
| APA | Wan, Zhongmin , Niu, Jie , Huang, Taiming , Liu, Yuanli , Sun, Yingkai , Yang, Chen et al. Study on the mechanism of flame instability and pollutant formation in porous diffusion combustion of hydrogen enriched natural gas for domestic burner . | Fuel , 2025 , 398 . |
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Catalytic distillation is an effective and important technology for low-temperature dehydrogenation of perhydrobenzyltoluene (H12-BT). However, current researches have unfortunately failed to comprehensively understand the reaction and separation processes, hindering the broader application of catalytic distillation dehydrogenation technology. Therefore, in the study, a comprehensive dehydrogenation reaction kinetic model that accounts for the influence of the intermediate H6-BT was established firstly. Subsequently, the vapor-liquid equilibrium data for the binary systems H12-BT + H6-BT and H6-BT + H0-BT was estimated by utilizing the UNIFAC model, so as to obtain the azeotropes. By developing a modified catalytic distillation model, the catalytic distillation dehydrogenation process was examined. Our exploration revealed the existence of an optimal degree of dehydrogenation value, namely 0.8, within the catalytic distillation dehydrogenation process, yielding an approximate 23.8 % reduction in unit H2 production cost in comparison to the fully dehydrogenation case. Our findings contribute valuable insights that have the potential to promote the overall development of the hydrogen energy economy.
Keyword ：
Catalytic distillation Catalytic distillation Degree of dehydrogenation Degree of dehydrogenation Dehydrogenation process Dehydrogenation process Perhydro-benzyltoluene Perhydro-benzyltoluene Reaction kinetic Reaction kinetic
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| GB/T 7714 | Wang, Qinglian , Le, Keyu , Lin, Yi et al. Investigation on catalytic distillation dehydrogenation of perhydro-benzyltoluene: Reaction kinetics, modeling and process analysis [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 482 . |
| MLA | Wang, Qinglian et al. "Investigation on catalytic distillation dehydrogenation of perhydro-benzyltoluene: Reaction kinetics, modeling and process analysis" . | CHEMICAL ENGINEERING JOURNAL 482 (2024) . |
| APA | Wang, Qinglian , Le, Keyu , Lin, Yi , Yin, Wang , Lin, Yixiong , Alekseeva, Maria, V et al. Investigation on catalytic distillation dehydrogenation of perhydro-benzyltoluene: Reaction kinetics, modeling and process analysis . | CHEMICAL ENGINEERING JOURNAL , 2024 , 482 . |
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N-Methylpyrrolidone is widely used across various sectors; however, the energy -efficient removal of 1,4-butyrolactone impurity from NMP remains a significant challenge due to their nearly identical molecular size and properties. Herein, we synthesize a series of flexible molecular materials, perethylated pillar[ n ]arene ( n = 5, 6) with enhanced crystallization efficiency under the induce of dichloromethane solvent. Through a size -specific recognition and varied host -guest interaction, EtP5 demonstrates exceptional 99 % selectivity for GBL against NMP; single -crystal structure analyses and theoretical calculations unveil intricate C-H center dot center dot center dot O hydrogen bonding interactions, and 7C -7C stacking interactions between EtP5 and GBL. The single -crystal structure of the two -guest complexes has proved the existence of adsorption transition states, and it comprehensively elucidates the dynamic adsorption process of EtP5 with GBL, supported by theoretical calculations. Reuse experiments validate these crystals could be fully reused without loss of performance.
Keyword ：
4-Butyrolactone 4-Butyrolactone Adsorption mechanism Adsorption mechanism N-Methylpyrrolidone N-Methylpyrrolidone Perethylated pillar[5]arene Perethylated pillar[5]arene
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| GB/T 7714 | Yin, Minlei , Yang, Chen , Tang, Duanlian et al. Revealing the mechanism behind the highly selective separation of 1,4-butyrolactone from n-methylpyrrolidone using nonporous adaptive crystals of perethylated pillar[5]arene [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 495 . |
| MLA | Yin, Minlei et al. "Revealing the mechanism behind the highly selective separation of 1,4-butyrolactone from n-methylpyrrolidone using nonporous adaptive crystals of perethylated pillar[5]arene" . | CHEMICAL ENGINEERING JOURNAL 495 (2024) . |
| APA | Yin, Minlei , Yang, Chen , Tang, Duanlian , Huang, Shiyin , Lou, Xiaoyu , Cui, Rongkai et al. Revealing the mechanism behind the highly selective separation of 1,4-butyrolactone from n-methylpyrrolidone using nonporous adaptive crystals of perethylated pillar[5]arene . | CHEMICAL ENGINEERING JOURNAL , 2024 , 495 . |
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Compressing metal foam flow field usually causes a higher pressure drop and uncontrollable pore structure while enhancing the water discharge capability of proton exchange membrane fuel cell (PEMFC). To further enhance the water discharge capability of metal foam flow field at a low cost of pressure drop, a novel metal foam flow field exhibiting hierarchical pore structure(dcoarse/dfine=2; Vcoarse/Vfine=1; dfine=0.5 mm) is first introduced. This work numerically investigates water management characteristics and output performance of novel metal foam flow field. Subsequently, 3D printing technology is employed to precisely manufacture metal foam flow fields, which are compared with several flow fields in the cathode side experimentally. Experimental results demonstrate that at 1.5 A/cm2 during 3 h, the amount of water discharge in metal foam flow field with hierarchical pore structure is close to parallel flow field, which is 1.12 times and 1.30 times that in metal foam flow field with uniform coarse pore and uniform fine pore, respectively. Moreover, compared with the previous optimized strategy, namely metal foam flow field with 75 PPI and a compression rate of 0.75, metal foam flow field with hierarchical pore structure can not only improve the maximum net power density by 9.5 % and water discharge amount by 14.1 %, but also decrease two-thirds of the pressure drop in the cathode side. This research lays the theoretical groundwork and offers technical insight for the implementation of metal foam flow fields in PEMFCs.
Keyword ：
3D printing 3D printing Hierarchical pore structure Hierarchical pore structure Metal foam flow field Metal foam flow field PEMFC PEMFC Water management Water management
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| GB/T 7714 | Sun, Yun , Lin, Yixiong , Wan, Zhongmin et al. Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 494 . |
| MLA | Sun, Yun et al. "Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure" . | CHEMICAL ENGINEERING JOURNAL 494 (2024) . |
| APA | Sun, Yun , Lin, Yixiong , Wan, Zhongmin , Wang, Qinglian , Yang, Chen , Yin, Wang et al. Water management and performance enhancement in proton exchange membrane fuel cell through metal foam flow field with hierarchical pore structure . | CHEMICAL ENGINEERING JOURNAL , 2024 , 494 . |
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