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学者姓名：蔡镇平
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Abstract ：
The design of novel practical catalysts is critical for the blossoming of biodiesel green-energy, in which Mo-based catalysts are of particular interest. In this work, an in-situ synthesis method was proposed to obtain a combo Mo-based ionic liquid and SAPO-11 catalyst. The catalyst presents both highly dispersed MoS2 as hydrodeoxygenation active sites and acidic sites for isomerization. MoS2 with a few fine layers can be identified based on TEM images and the Bronsted acid sites are dominant based on Pyridine-IR analysis. A great performance of MoS2/C(8)min-15 %SA can be obtained under optimized reaction conditions with 100 % conversion of methyl palmitate, 75.0 mol% hydrodeoxygenation to n-C-15-C-16, and 20.5 mol % isomerization to i-C-15-C-16. The structure and activity of the catalyst can be retained at least for 4 cycles. Thin layers and high sulfurization, large amount of Br & oslash;nsted acid sites, and suitable reaction conditions are key points to achieve a significant performance and avoid over cracking and deactivation. On basis of detected intermediates and kinetic data simulations, a complex reaction pathway was proposed and the specific k values for each elementary reaction were provided for the hydrodeoxygenation and isomerization of methyl palmitate.
Keyword ：
Biodiesel Biodiesel Hydrodeoxygenation Hydrodeoxygenation Isomerization Isomerization Methyl palmitate Methyl palmitate MoS2 MoS2 SAPO-11 SAPO-11
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| GB/T 7714 | Ding, Yongxin , Lin, Jun , Yu, Panjie et al. An in-situ combo Mo-based ionic liquid and SAPO-11 catalyst for efficient biolipids hydrodeoxygenation and isomerization [J]. | FUEL , 2024 , 362 . |
| MLA | Ding, Yongxin et al. "An in-situ combo Mo-based ionic liquid and SAPO-11 catalyst for efficient biolipids hydrodeoxygenation and isomerization" . | FUEL 362 (2024) . |
| APA | Ding, Yongxin , Lin, Jun , Yu, Panjie , Zhang, Hongwei , Ma, Yongde , Cai, Zhenping et al. An in-situ combo Mo-based ionic liquid and SAPO-11 catalyst for efficient biolipids hydrodeoxygenation and isomerization . | FUEL , 2024 , 362 . |
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A series of mesoporous polymers functionalized with different kinds and contents of Br & oslash; nsted acidic sites were designed and synthesized for NH 3 capture. The textural properties, morphologies and chemical structures of synthesized mesoporous polymers were characterized in details, and the NH 3 capture performance was evaluated systematically. It is found that the mesoporous polymers functionalized with phosphoric sites exhibit much better NH 3 capture performance at low pressures than those with carboxylic and sulfonic sites. Specifically, the NH 3 adsorption capacities of P(DVB-VPA)-4.0 can reach 4.82 mmol/g at 298.2 K and 0.033 bar. The excellent ability of P(DVB-VPA)-4.0 for selectively adsorbing low -content NH 3 from NH 3 /N 2 /H 2 and NH 3 /N 2 /CO 2 mixed gases was demonstrated by breakthrough experiments, and the adsorption of NH 3 by P(DVB-VPA)-4.0 is found to be mostly reversible. The thermodynamic properties and mechanism of NH 3 adsorption were also examined in depth, disclosing the important role of Br & oslash; nsted acidic sites in enhanced capture of low -content NH 3 by P(DVBVPA)-4.0.
Keyword ：
Acid -base interaction Acid -base interaction Br & oslash;nsted acidic site Br & oslash;nsted acidic site Low content Low content Mesoporous polymer Mesoporous polymer NH 3 capture NH 3 capture
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| GB/T 7714 | Zheng, Lu , Shi, Leilian , Li, Qiuke et al. Designing Brønsted acidic sites on mesoporous polymers for enhanced capture of low-content ammonia [J]. | CHEMICAL ENGINEERING SCIENCE , 2024 , 292 . |
| MLA | Zheng, Lu et al. "Designing Brønsted acidic sites on mesoporous polymers for enhanced capture of low-content ammonia" . | CHEMICAL ENGINEERING SCIENCE 292 (2024) . |
| APA | Zheng, Lu , Shi, Leilian , Li, Qiuke , Zhang, Hongwei , Cai, Zhenping , Huang, Kuan et al. Designing Brønsted acidic sites on mesoporous polymers for enhanced capture of low-content ammonia . | CHEMICAL ENGINEERING SCIENCE , 2024 , 292 . |
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The efficient separation and collection of ammonia (NH3) during NH3 synthesis process is essential to improve the economic efficiency and protect the environment. In this work, ethanolammonium hydrochloride (EtOHACl) and phenol (PhOH) were used to prepare a novel class of deep eutectic solvents (DESs) with multiple active sites and low viscosities. The NH3 separation performance of EtOHACl + PhOH DESs was analyzed completely. It is figured out that the NH3 absorption rates in EtOHACl + PhOH DESs are very fast. The NH3 absorption capacities are very high and reach up to 5.52 and 10.74 mol$kg-1 at 11.2 and 100.4 kPa under 298.2 K, respectively. In addition, the EtOHACl + PhOH DESs present highly selective absorption of NH3 over N2 and H2 and good regenerative properties after seven cycles of absorption/desorption. The intrinsic separation mechanism of NH3 by EtOHACl + PhOH DESs was further revealed by spectroscopic analysis and quantum chemistry calculations. (c) 2023 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
Keyword ：
Absorption Absorption Deep eutectic solvent Deep eutectic solvent Ionic liquid Ionic liquid Low viscosity Low viscosity Multiple active site Multiple active site Separation Separation
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| GB/T 7714 | Zhang, Jiayin , Zheng, Lu , Fang, Siqi et al. Efficient and reversible separation of NH3 by deep eutectic solvents with multiple active sites and low viscosities [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2024 , 67 : 97-105 . |
| MLA | Zhang, Jiayin et al. "Efficient and reversible separation of NH3 by deep eutectic solvents with multiple active sites and low viscosities" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 67 (2024) : 97-105 . |
| APA | Zhang, Jiayin , Zheng, Lu , Fang, Siqi , Zhang, Hongwei , Cai, Zhenping , Huang, Kuan et al. Efficient and reversible separation of NH3 by deep eutectic solvents with multiple active sites and low viscosities . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2024 , 67 , 97-105 . |
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The efficient deoxygenation of renewable biolipids into liquid alkanes within the diesel range is a key protocol for producing high-quality biofuels. In this work, the conversion of methyl palmitate and raw palm oil were accomplished utilizing a bifunctional catalyst of Ni catalysts supported on B2O3-ZrO2 under solvent-free conditions. Among various Ni loading ratios investigated, the catalyst featuring a 10 % Ni loading achieved 100 % conversion of methyl palmitate and 84.4 % of liquid yield, with approximately 65 % being C15 alkanes. Additionally, more than 91 % of hydrocarbons were also generated from raw palm oil. These results can be attributed to the synergistic interplay between the acid sites, following B2O3 modification, and the presence of Ni species. Furthermore, the analysis of product distribution, gas product detection and the kinetics calculation strongly supports that the deoxygenation process of methyl palmitate primarily follows the hydrodecarbonylation route, leading to the predominant formation of C15 alkane. © 2024
Keyword ：
Bifunctional catalyst Bifunctional catalyst Biodiesel Biodiesel Deoxygenation Deoxygenation Liquid alkanes Liquid alkanes Methyl palmitate Methyl palmitate
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| GB/T 7714 | Yu, P. , Xu, J. , Liang, R. et al. Solvent-free deoxygenation of biolipid into liquid alkanes over bifunctional Ni/B2O3-ZrO2 catalyst [J]. | Fuel , 2024 , 375 . |
| MLA | Yu, P. et al. "Solvent-free deoxygenation of biolipid into liquid alkanes over bifunctional Ni/B2O3-ZrO2 catalyst" . | Fuel 375 (2024) . |
| APA | Yu, P. , Xu, J. , Liang, R. , Cai, Z. , Ma, Y. , Zhang, H. et al. Solvent-free deoxygenation of biolipid into liquid alkanes over bifunctional Ni/B2O3-ZrO2 catalyst . | Fuel , 2024 , 375 . |
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The capture the low-content NH3 from industrial streams, and recycle it as the feedstocks for industrial processes is very important. In this work, we reported the use of mesoporous polydivinylbenzene (PDVB) as the support of metal-based deep eutectic solvents (DESs) containing choline chloride (ChCl) and metal chlorides (SnCl2, FeCl3 or ZnCl2) for NH3 capture. The structure of composite materials was characterized in details, and the NH3 capture performance and mechanism of them were also examined in depth. Owing to the coordination interaction of metal ions with NH3, along with the hydrogen-bond interaction of - OH and Cl- with NH3, the DES@PDVB composites exhibit considerably high low-content NH3 capacities. The optimized sample ChCl + 2ZnCl2@PDVB1.5 can adsorb 7.43 mol/kg of NH3 at 25 degree celsius and 0.122 bar, which is advantageous over most other adsorbents fabricated in the literature. The mechanism of NH3 capture by DES@PDVB composites was also illustrated through spectroscopic characterizations.
Keyword ：
Deep eutectic solvent Deep eutectic solvent Low content Low content Mesoporous polymer Mesoporous polymer Multiple interaction Multiple interaction NH 3 capture NH 3 capture
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| GB/T 7714 | Zhang, Jiayin , Fang, Siqi , Zheng, Lu et al. Mesoporous polymer supported Metal-Based deep eutectic solvents for enhanced capture of Low-Content Ammonia [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 493 . |
| MLA | Zhang, Jiayin et al. "Mesoporous polymer supported Metal-Based deep eutectic solvents for enhanced capture of Low-Content Ammonia" . | CHEMICAL ENGINEERING JOURNAL 493 (2024) . |
| APA | Zhang, Jiayin , Fang, Siqi , Zheng, Lu , Cao, Yanning , Zhang, Hongwei , Cai, Zhenping et al. Mesoporous polymer supported Metal-Based deep eutectic solvents for enhanced capture of Low-Content Ammonia . | CHEMICAL ENGINEERING JOURNAL , 2024 , 493 . |
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There is a particular demand to explore low-volatility and structurally tunable absorbents for efficiency, selectivity and reversibility in capturing H2S. For the first time, the performance of deep eutectic solvents (DESs) composed of 1-ethyl-3-methylimidazolium chloride ([Emim]Cl) and acetamide (AA) were examined as physical absorbents for H2S capture. The physical properties of [Emim]Cl-AA DESs, and solubilities of both H2S and CO2 in them were measured. Relevant experimental results demonstrated that the solubilities of H2S in [Emim]Cl-AA DESs (1.1 mol/kg at 298.2 K and 1.023 bar) significantly exceed those of CO2 (0.040 mol/kg at 298.2 K and 1.027 bar). [Emim]Cl-AA DESs exhibit higher H2S solubilities and superior ideal H2S to CO2 selectivities (e.g., the ideal H2S/CO2 selectivity of [Emim]Cl-AA (1:0.5) is 28.5 at 298.2 K) than those physical absorbents ever reported. The recyclability of [Emim]Cl-AA DESs for H2S selective capture was also evaluated, which was found to be very stable in ten continuous absorption and regeneration cycle experiments. The mechanism of H2S capture by [Emim]Cl-AA DESs was finally illustrated at the molecular level with the support of theoretical calculations. © 2024 Elsevier B.V.
Keyword ：
Absorption selectivity Absorption selectivity Deep eutectic solvent Deep eutectic solvent H2S capture H2S capture Physical solvent Physical solvent Theoretical calculation Theoretical calculation
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| GB/T 7714 | Zheng, L. , Li, X. , Cao, Y. et al. Efficient, selective and reversible capture of hydrogen sulfide by [Emim]Cl-Acetamide deep eutectic solvents [J]. | Journal of Molecular Liquids , 2024 , 413 . |
| MLA | Zheng, L. et al. "Efficient, selective and reversible capture of hydrogen sulfide by [Emim]Cl-Acetamide deep eutectic solvents" . | Journal of Molecular Liquids 413 (2024) . |
| APA | Zheng, L. , Li, X. , Cao, Y. , Ma, Y. , Zhang, H. , Cai, Z. et al. Efficient, selective and reversible capture of hydrogen sulfide by [Emim]Cl-Acetamide deep eutectic solvents . | Journal of Molecular Liquids , 2024 , 413 . |
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In this work, an oil-soluble ionic liquid (IL) was combined with mixed metal oxide for in situ generation of bifunctional catalysts for slurry-phase heavy oil hydrocracking. The oil-soluble IL selected was trihexylmethylammonium molybdate ([N-6661](2)MoO4), and the mixed metal oxide selected was SiO2-ZrO2. The performance of using [N-6661](2)MoO4 and SiO2-ZrO2 for slurry-phase hydrocracking was examined systematically. It is found that the addition of SiO2-ZrO2 can significantly improve the conversion of residue to distillate and the gas and coke yields are also improved. The MoS2/SiO2-ZrO2 bifunctional catalysts in situ generated in the reaction system were collected for detailed characterizations. The MoS2 slabs are in a highly dispersed and sulfurized status in the matrix of SiO2-ZrO2, and there are also abundant acidic sites in resultant bifunctional catalysts. The kinetics of slurry-phase hydrocracking was further investigated to disclose the reaction routes for the conversion of residue and the role of adding SiO2-ZrO2 in promoting the hydrocracking reactions.
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| GB/T 7714 | Ma, Yongde , Wu, Wenquan , Zhang, Jiayin et al. Slurry-Phase Hydrocracking of Heavy Oil with Bifunctional Catalysts In Situ Generated from Oil-Soluble Ionic Liquid and Mixed Metal Oxide [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2023 , 62 (38) : 15459-15468 . |
| MLA | Ma, Yongde et al. "Slurry-Phase Hydrocracking of Heavy Oil with Bifunctional Catalysts In Situ Generated from Oil-Soluble Ionic Liquid and Mixed Metal Oxide" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 62 . 38 (2023) : 15459-15468 . |
| APA | Ma, Yongde , Wu, Wenquan , Zhang, Jiayin , Zhang, Hongwei , Cai, Zhenping , Cao, Yanning et al. Slurry-Phase Hydrocracking of Heavy Oil with Bifunctional Catalysts In Situ Generated from Oil-Soluble Ionic Liquid and Mixed Metal Oxide . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2023 , 62 (38) , 15459-15468 . |
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Biochemicals and biofuel derived from biomass conversion have received much attention over past decades. Alkyl levulinates are considered as promising building block chemicals and green fuel additive. This work presents a facile and efficient catalytic strategy for one pot cascade conversion of furfural to alkyl levulinates over rare earth metal trifluoromethanesulfonates (RE(OTf)3) in alcohol without external H2. Experimental results demonstrate that RE(OTf)3 binds to the alcohol ((OTf)3-RE-O(H)R), possessing both Bronsted acid and Lewis acid, plays a key role for this cascade process. Meanwhile, the selectivity of alkyl levulinate is closely related to charge density of selected metal ion and the reduction potential of the selected alcohol. Among various tests, Lu (OTf)3, possessing the greatest charge density, exhibits the best catalytic activity in the lowest reduction potential of 2-propanol. 100% furfural conversion and 52.8% ispropanyl levulinate yield can be achieved at 190 degrees C within 45 min. This catalyst can be recycled five times by direct vacuum distillation and regenerated by oxidative elimination of formed humins. Besides, a plausible reaction mechanism is also proposed.
Keyword ：
Alkyl levulinate Alkyl levulinate Cascade reaction process Cascade reaction process Furfural Furfural Lu(OTf)(3) Lu(OTf)(3) One pot One pot
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| GB/T 7714 | Li, Fukun , Yang, Ronghe , Du, Ziting et al. One pot cascade conversion of furfural to alkyl levulinate over Lu(OTf)(3) without external H-2 [J]. | MOLECULAR CATALYSIS , 2023 , 547 . |
| MLA | Li, Fukun et al. "One pot cascade conversion of furfural to alkyl levulinate over Lu(OTf)(3) without external H-2" . | MOLECULAR CATALYSIS 547 (2023) . |
| APA | Li, Fukun , Yang, Ronghe , Du, Ziting , Dai, Jinhang , Wang, Xingmin , Li, Ning et al. One pot cascade conversion of furfural to alkyl levulinate over Lu(OTf)(3) without external H-2 . | MOLECULAR CATALYSIS , 2023 , 547 . |
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本发明公开了一种过渡金属掺杂的杂多酸离子液体及其制备方法与应用，其是以杂多酸、过渡金属盐和离子液体为原料，经离子交换制得过渡金属掺杂的油溶性杂多酸离子液体。本发明所得过渡金属掺杂的杂多酸离子液体经原位硫化后具有很高的生物质油转化率和烃类选择性，可实现在温和条件下对棕榈油、植物油等生物质油的加氢脱氧过程，解决了现有生物质油加氢脱氧过程中反应条件苛刻，能耗高，催化剂易失活的问题。
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| GB/T 7714 | 曹彦宁 , 丁永鑫 , 蔡镇平 et al. 一种过渡金属掺杂的杂多酸离子液体及其制备方法与应用 : CN202210663037.7[P]. | 2022-06-13 00:00:00 . |
| MLA | 曹彦宁 et al. "一种过渡金属掺杂的杂多酸离子液体及其制备方法与应用" : CN202210663037.7. | 2022-06-13 00:00:00 . |
| APA | 曹彦宁 , 丁永鑫 , 蔡镇平 , 江莉龙 , 黄宽 , 马永德 . 一种过渡金属掺杂的杂多酸离子液体及其制备方法与应用 : CN202210663037.7. | 2022-06-13 00:00:00 . |
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本发明公开了一种基于悬浮床的二代生物柴油制备方法，所述工艺包括以下步骤：1)将原料油除去固体杂质后与油溶性钼基离子液体、硫化剂和H2混合后通入悬浮床反应器，以油溶性钼基离子液体为催化剂进行反应，生成产物Ⅰ；2)将产物Ⅰ分离出的液相Ⅰ产物通入油水分离器，分离出油相和水相，油相与H2混合后通入临氢异构反应器，在异构化催化剂作用下生成产物Ⅱ；3)将产物Ⅱ分离出的液相Ⅱ产物通入分馏塔，分离出二代生物柴油产品。本发明效解决了传统的固定床工艺中催化剂失活会导致频繁停车的问题，该工艺还具有原料油适应性广、工艺流程简单、设备投资成本低，并且转化率高、生焦率低等特点，具有极大的工业应用前景和推广价值。
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| GB/T 7714 | 黄宽 , 江莉龙 , 曹彦宁 et al. 一种基于悬浮床的二代生物柴油制备方法 : CN202210251260.0[P]. | 2022-03-15 00:00:00 . |
| MLA | 黄宽 et al. "一种基于悬浮床的二代生物柴油制备方法" : CN202210251260.0. | 2022-03-15 00:00:00 . |
| APA | 黄宽 , 江莉龙 , 曹彦宁 , 马永德 , 蔡镇平 . 一种基于悬浮床的二代生物柴油制备方法 : CN202210251260.0. | 2022-03-15 00:00:00 . |
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