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学者姓名：黄宽
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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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Abstract ：
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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Solid adsorbents with high NH3 separation performance and good stability are particularly important for industrial applications. In our work, few-layered hexagonal boron nitrides (h-BNs) were synthesized and proposed as a kind of solid adsorbent by utilizing the abundant Lewis acidic B atoms on h-BNs. The synthesized h-BNs were investigated for NH3 separation both experimentally and theoretically. It is found that the NH3 isotherms of h-BNs slightly deviate from the ideal profiles, suggesting that the h-BNs enable moderate interactions with NH3. At the pressure of 0.1 and 1 bar, the h-BNs can adsorb as much as 2.33 and 8.67 mmol/g of NH3, respectively. The h-BNs also demonstrate highly selective adsorption of NH3 from other gases such as N2, H2, and CO2, regardless of calculated ideal selectivities or breakthrough adsorption of mixed gases. The NH3 adsorption of h-BNs can be completely reversed, and the h-BNs also exhibit high oxidative resistance, which is of vital importance for the long-term application in industry. Density functional theory calculations and molecular dynamics simulations were further conducted to rationalize the effective separation of NH3 by h-BNs and disclose the underlying mechanism at the molecular level.
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| GB/T 7714 | Zhang, Jiayin , Cao, Yanning , Ding, Fengyun et al. Few-Layered Hexagonal Boron Nitrides as Highly Effective and Stable Solid Adsorbents for Ammonia Separation [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2023 . |
| MLA | Zhang, Jiayin et al. "Few-Layered Hexagonal Boron Nitrides as Highly Effective and Stable Solid Adsorbents for Ammonia Separation" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2023) . |
| APA | Zhang, Jiayin , Cao, Yanning , Ding, Fengyun , Zheng, Lu , Ma, Yongde , Cai, Zhenping et al. Few-Layered Hexagonal Boron Nitrides as Highly Effective and Stable Solid Adsorbents for Ammonia Separation . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2023 . |
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Biodiesel is a clean and renewable energy source, and it is one of the most potential development directions to deal with problems such as greenhouse effect, environmental pollution, and energy shortage. The second-generation biodiesel is a hydrocarbon mixture prepared by the hydroconversion of lipid with the assistance of hydrogen (H2). It has similar components to the traditional petrochemical diesel. In addition to the advantages of greenness, high cetane number and renewability, it also has the characteristics of good low-temperature fluidity, low oxygen content, high stability and high calorific value. It can be mixed with petrochemical diesel without fraction limitation. This review systematically summarizes the research progress in the preparation of second-generation biodiesel by catalytic hydroconversion of lipid in recent years. We discuss the hydroconversion mechanism, active phase of catalysts, catalyst supports and hydroconversion process, with special emphasis on the design and development of highly efficient hydroconversion catalysts. In addition, the opportunities and challenges in the field of lipid hydrogenation to produce second-generation biodiesel were analyzed, and the future development directions were prospected. © 2023 Chemical Industry Press. All rights reserved.
Keyword ：
Biodiesel Biodiesel Catalyst supports Catalyst supports Diesel engines Diesel engines Greenhouse effect Greenhouse effect Hydrogenation Hydrogenation Petrochemicals Petrochemicals Renewable energy resources Renewable energy resources Temperature Temperature
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| GB/T 7714 | Huang, Kuan , Ma, Yongde , Cai, Zhenping et al. Research progress in catalytic hydroconversion of lipid to second-generation biodiesel [J]. | CIESC Journal , 2023 , 74 (1) : 380-396 . |
| MLA | Huang, Kuan et al. "Research progress in catalytic hydroconversion of lipid to second-generation biodiesel" . | CIESC Journal 74 . 1 (2023) : 380-396 . |
| APA | Huang, Kuan , Ma, Yongde , Cai, Zhenping , Cao, Yanning , Jiang, Lilong . Research progress in catalytic hydroconversion of lipid to second-generation biodiesel . | CIESC Journal , 2023 , 74 (1) , 380-396 . |
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The effective separation of ammonia (NH3) has important implication for the conversion improvement and pollution control during the synthesis of NH3. In the present work, a novel kind of non-chloride deep eutectic solvents (DESs) were constructed from dihydroxybenzoic acids (DHBAs) and ethylene glycol (EG). The DHBA + EG DESs exhibit several weak acidic sites and hydrogen-bond sites, thus were proposed for NH3 separation. We found that the amounts of NH3 absorbed by DHBA + EG DESs are quite impressive, particularly at reduced pressures. The capacities can reach 5.64 and 11.69 mol/kg at 0.1 and 1 bar respectively, when the temperature of 298.2 K is considered. Besides, after five absorption-desorption cycles, the DHBA + EG DESs can preserve the excellent NH3 absorption performance. The DHAB + EG DESs can also selectively absorb NH3 from N2 and H2 in the mixed gas. The NH3 absorption mechanism of DHBA + EG DESs was further deeply illustrated by spectro-scopic techniques and theoretical calculations.
Keyword ：
Absorption capacity Absorption capacity Chloride free Chloride free Deep eutectic solvent Deep eutectic solvent Gas separation Gas separation Multiple site Multiple site
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| GB/T 7714 | Zheng, Lu , Zhang, Xinyue , Li, Qiuke et al. Effective ammonia separation by non-chloride deep eutectic solvents composed of dihydroxybenzoic acids and ethylene glycol through multiple-site interaction [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 309 . |
| MLA | Zheng, Lu et al. "Effective ammonia separation by non-chloride deep eutectic solvents composed of dihydroxybenzoic acids and ethylene glycol through multiple-site interaction" . | SEPARATION AND PURIFICATION TECHNOLOGY 309 (2023) . |
| APA | Zheng, Lu , Zhang, Xinyue , Li, Qiuke , Ma, Yongde , Cai, Zhenping , Cao, Yanning et al. Effective ammonia separation by non-chloride deep eutectic solvents composed of dihydroxybenzoic acids and ethylene glycol through multiple-site interaction . | SEPARATION AND PURIFICATION TECHNOLOGY , 2023 , 309 . |
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Dispersed metal sulfides are promising catalysts for the hydroconversion of biolipids to produce second-generation biodiesel. In this work, oil-soluble Mo-based ionic liquids (ILs) were innovatively utilized as the precursors for in situ generation of MoS2 catalysts for the hydroconversion of biolipids. Taking methyl palmitate as the model compound, the excellent activity of in situ generated MoS2 from ionic liquid Mo-based precursors was obtained. The turnover frequencies (TOFs) reached up to 1.6 x 102 h-1 for methyl palmitate conversion and 83 h-1 for hexadecane (C16) yield at 320 degrees C and 0.5 h (42% conversion) under solvent-dilute conditions. The structures of in situ generated MoS2 catalysts were characterized to pro-vide explanations for the catalytic results. Based on the product distributions, the pathway of methyl palmitate hydroconversion was proposed, and the kinetics of methyl palmitate hydroconversion was analyzed in further detail. Applying the Mo-based ILs in the hydroconversion of methyl palmitate and palm oil under solvent-free condition also granted high conversions of feeds and selectivities of HDO products.(c) 2023 Elsevier Inc. All rights reserved.
Keyword ：
Biodiesel Biodiesel Dispersed catalyst Dispersed catalyst Hydrodeoxygenation Hydrodeoxygenation Ionic liquid Ionic liquid Kinetics Kinetics
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| GB/T 7714 | Cai, Zhenping , Ding, Yongxin , Zhang, Jiayin et al. In situ generation of dispersed MoS2 catalysts from oil-soluble Mo-based ionic liquids for highly effective biolipids hydrodeoxygenation [J]. | JOURNAL OF CATALYSIS , 2023 , 423 : 50-61 . |
| MLA | Cai, Zhenping et al. "In situ generation of dispersed MoS2 catalysts from oil-soluble Mo-based ionic liquids for highly effective biolipids hydrodeoxygenation" . | JOURNAL OF CATALYSIS 423 (2023) : 50-61 . |
| APA | Cai, Zhenping , Ding, Yongxin , Zhang, Jiayin , Yu, Panjie , Ma, Yongde , Cao, Yanning et al. In situ generation of dispersed MoS2 catalysts from oil-soluble Mo-based ionic liquids for highly effective biolipids hydrodeoxygenation . | JOURNAL OF CATALYSIS , 2023 , 423 , 50-61 . |
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