Industrial & Engineering Chemistry Research最新文献

Deciphering the Promoting Effect of Zn on CuO for Dimethyldichlorosilane Production via the Rochow-Müller Reaction 解密 Zn 对通过 Rochow-Müller 反应生产二甲基二氯硅烷的 CuO 的促进作用

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-13 DOI: 10.1021/acs.iecr.4c02149

Yuanlong Cui, Yongxia Zhu, Baofang Jin, Kangjun Wang, Jiajian Gao, Lili Zhang, Guangwen Xu, Ziyi Zhong, Fabing Su

{"title":"Deciphering the Promoting Effect of Zn on CuO for Dimethyldichlorosilane Production via the Rochow-Müller Reaction","authors":"Yuanlong Cui, Yongxia Zhu, Baofang Jin, Kangjun Wang, Jiajian Gao, Lili Zhang, Guangwen Xu, Ziyi Zhong, Fabing Su","doi":"10.1021/acs.iecr.4c02149","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02149","url":null,"abstract":"Zinc (Zn) is commonly used as a promoter in Cu-based catalysts to boost the production of organosilane monomers during the Rochow-Müller reaction. However, the effect of Zn on the phase change of Cu-based catalysts in the reaction process is not yet fully understood. In this study, we prepared two Zn-modified CuO catalysts using simple ball milling (Zn–CuO) and physical mixing (Zn+CuO) methods. We found that adding Zn into CuO enhanced the adsorption of methyl chloride on the CuO surface, thereby promoting the sequential phase transformation of CuO to Cu2O and then to Cu and further to CuCl. Moreover, CuCl, as a key intermediate phase, could diffuse into Si powder and form Cu3Si under high-temperature conditions. Compared to CuO and Zn+CuO, Zn–CuO underwent a faster phase transformation, facilitating the generation of the active Cu3Si phase and enhancing the dimethyldichlorosilane selectivity and Si conversion. This study has clarified the role of the Zn promoter in the phase transformation of CuO catalysts in the Rochow-Müller reaction. Understanding this mechanism is crucial to designing more efficient catalysts.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Liquid–Liquid Heterogeneous Mixing Characteristics in a Submerged Rotating Packed Bed 浸没式旋转填料床中的液-液异质混合特性

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-12 DOI: 10.1021/acs.iecr.4c02676

Xi-Fan Duan, Zhen-Yu Yang, Yan-Bin Li, Abdelgadir Bashir Banaga, Liangliang Zhang, Guang-Wen Chu, Jian-Feng Chen

{"title":"Liquid–Liquid Heterogeneous Mixing Characteristics in a Submerged Rotating Packed Bed","authors":"Xi-Fan Duan, Zhen-Yu Yang, Yan-Bin Li, Abdelgadir Bashir Banaga, Liangliang Zhang, Guang-Wen Chu, Jian-Feng Chen","doi":"10.1021/acs.iecr.4c02676","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02676","url":null,"abstract":"The involvement of liquid–liquid heterogeneous intensification in chemical processes is indispensable due to the presence of phase interfaces that impose limitations on mixing efficiency. Herein, a submerged rotating packed bed (SRPB) was developed to intensify liquid–liquid heterogeneous mixing under a dramatic centrifugal environment. The packing was submerged in continuous liquid to potentially match the heat-sensitive reaction systems. The liquid–liquid heterogeneous dispersion phenomena were photographed using a microscope, and the heterogeneous mixing efficiency was investigated using a sodium hydroxide and aspirin system as the chemical probe. As rotational speed was increased from 300 to 1500 r/min, the Sauter mean diameter of the aqueous phase was remarkably reduced from 110.65 to 19.57 μm, proving that SRPB could effectively disperse the liquid–liquid heterogeneous reaction system. Benefiting from the rotating packing, the segregation index (XS) and micromixing time (tm) respectively decreased in the range of 0.33–0.11 and 3.98–1.36 ms, indicating that the mixing efficiency was significantly enhanced under the centrifugal field of SRPB. The increase in the total volume flow rate reduced XS and tm, which could stem from the enlarged heterogeneous interfaces by forming multiple composite droplets at large volume flow rates. Compared with conventional RPB, the XS of SRPB (0.09–0.35) was slightly lower than that of RPB (0.1–0.4), and the tm of SRPB (1.36–3.98) was remarkably lower than that of RPB (1–10), proving the superiority of SPRB in promoting heterogeneous mixing.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Orientation-Graded Morphologies in Microcellular Foams through Additive Manufacturing 通过增材制造实现微孔泡沫的定向分级形态

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-12 DOI: 10.1021/acs.iecr.4c02307

Claudio Esposito, Daniele Tammaro, Pasquale Posabella, Massimiliano Maria Villone, Gaetano D’Avino, Pier Luca Maffettone

{"title":"Orientation-Graded Morphologies in Microcellular Foams through Additive Manufacturing","authors":"Claudio Esposito, Daniele Tammaro, Pasquale Posabella, Massimiliano Maria Villone, Gaetano D’Avino, Pier Luca Maffettone","doi":"10.1021/acs.iecr.4c02307","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02307","url":null,"abstract":"We present experimental findings and modeling insights into the expansion of bubbles within a Newtonian fluid, observed during an advanced process integrating additive manufacturing and physical foaming techniques to fabricate complex microcellular foams with orientation-graded morphologies. A physical and sustainable blowing agent (CO2) is solubilized into a biopolymer (PLA) that is 3D-printed through a cylindrical nozzle, and, at the nozzle outlet, the blowing agent foams inside the polymeric strand due to pressure drop or/and temperature rise. The experimental results show that, by engineering the temperature gradient at high printing velocities, corresponding to values of the Graetz number (i.e., the ratio of heat diffusion time and residence time inside the printer hot-end) larger than one, the microcellular foamed strands have a microstructure characterized by anisotropic bubbles oriented along two different directions. The microbubbles at the center of the strands are stretched in the extrusion direction, whereas those in the periphery are stretched radially. A foam morphology with microbubbles having two different orientations, smoothly changing within the cross section, has never been reported before. We investigate the formation mechanism of such a morphology by simplified modeling and numerical simulations. Simulation results support the experimental findings and rationalize the effects of the Graetz number on the microcellular foamed strands and on the expansion of gas bubbles in a Newtonian fluid, suggesting that the different orientations of the bubbles are due to the combined effect of high Graetz number and the radial expansion of the strand.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilizing l-Ascorbic Acid to Inhibit Adverse Oxidation and Enhance Denitration Efficiency during Sulfite Solution Absorption of NO2: Mechanism and Process Parameters 利用抗坏血酸抑制亚硫酸盐溶液吸收二氧化氮过程中的不利氧化并提高脱硝效率：机理与工艺参数

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-12 DOI: 10.1021/acs.iecr.4c03092

Jingwen Qian, Susu Liu, Zhongyu Wang, Mingyi Yu, Zheng Lian, Shule Zhang, Qin Zhong

{"title":"Utilizing l-Ascorbic Acid to Inhibit Adverse Oxidation and Enhance Denitration Efficiency during Sulfite Solution Absorption of NO2: Mechanism and Process Parameters","authors":"Jingwen Qian, Susu Liu, Zhongyu Wang, Mingyi Yu, Zheng Lian, Shule Zhang, Qin Zhong","doi":"10.1021/acs.iecr.4c03092","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03092","url":null,"abstract":"In the typical wet flue gas denitration technology using sulfite solutions, the rapid free radical chain reaction of SO3•– oxidation by O2 is the main reason for the significant consumption of absorbents and inefficient denitration. The study utilizes l-ascorbic acid (VC) to inhibit the free radical chain reaction. VC combined with SO3•– to form stable compounds, which hindered the oxidation of SO3•– to SO5•– by O2, leading to an 80.7 mol % decrease in Na2SO3 consumption by adding millimolar-level VC. Compared to the sulfite solution, the best denitration efficiency of the VC/Na2SO3 mixture solution increased from 94.4 to 99.2 vol %, and the absorption time for absorption efficiency above 90 vol % was extended from 7 to 72 min. Additionally, a macro absorption model describing the rates of macro absorption was established based on various operating conditions.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemoenzymatic Epoxidation of Terpenes by Lyophilized Mycelium of Psychrophilic Cladosporium cladosporioides 01 冻干精神嗜性梭菌菌丝体对萜烯的化学酶促环氧化作用 01

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-11 DOI: 10.1021/acs.iecr.4c02228

Mateusz Kutyła, Marek Majdan, Łukasz Szajnecki, Agnieszka Świca, Marek Stankevič, Rafał Typek, Willem J.H. van Berkel, Mariusz Trytek

{"title":"Chemoenzymatic Epoxidation of Terpenes by Lyophilized Mycelium of Psychrophilic Cladosporium cladosporioides 01","authors":"Mateusz Kutyła, Marek Majdan, Łukasz Szajnecki, Agnieszka Świca, Marek Stankevič, Rafał Typek, Willem J.H. van Berkel, Mariusz Trytek","doi":"10.1021/acs.iecr.4c02228","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02228","url":null,"abstract":"Terpene epoxides constitute a group of compounds of particular importance due to their biological activity or use in the production of polymers. It is important to develop a universal, inexpensive, and sustainable method to obtain these compounds from readily available terpenes. Chemoenzymatic epoxidation by the freeze-dried mycelium of Cladosporium cladosporioides01 is an alternative to processes based on the well-known and expensive lipase B fromCandida antarctica. In the present work, we studied the kinetics of limonene epoxidation by the fungal biocatalyst and found the highest epoxidation activity in the “green” solvent ethyl acetate with a 4-fold excess of H2O2 relative to the substrate. Epoxidation followed a two-way sequential mechanism in which the major initial product limonene 1,2-epoxide and the minor intermediate product limonene 8,9-epoxide were further converted to limonene diepoxide. Substrate specificity studies revealed that a wide number of linear and cyclic monoterpenes, e.g., linalool, citronellene, citronellal, α-pinene, β-pinene, myrtenol, and perillyl alcohol, were efficiently converted to their respective epoxides by this biocatalyst. The biocatalyst may show activity in the direct oxidation of a double bond without the use of a peracid. The freeze-dried mycelium exhibited higher biocatalytic activity after defatting and high stability in ethyl acetate and in the presence of an oxidant. No decrease in its activity was observed after eight biocatalytic cycles. Therefore, the mycelium can be successfully used for the sustainable large-scale production of terpene epoxides.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Anomaly Detection in Compressor Components Using Deep Learning and an Attribute Updating Model 利用深度学习和属性更新模型加强压缩机部件的异常检测

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-11 DOI: 10.1021/acs.iecr.4c02007

Guotao Yang, Shaolin Hu, Longtao Wang

引用次数: 0

Optimization Methodology of Dual-Bed Catalyst Stacking Systems to Produce Ultralow-Sulfur Diesel 生产超低硫柴油的双床催化剂叠加系统优化方法学

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-11 DOI: 10.1021/acs.iecr.4c02846

Emilio Leal, Pablo Torres-Mancera, Fernando Alonso, Rosario Luna, José A. D. Muñoz, Jorge Ancheyta

{"title":"Optimization Methodology of Dual-Bed Catalyst Stacking Systems to Produce Ultralow-Sulfur Diesel","authors":"Emilio Leal, Pablo Torres-Mancera, Fernando Alonso, Rosario Luna, José A. D. Muñoz, Jorge Ancheyta","doi":"10.1021/acs.iecr.4c02846","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02846","url":null,"abstract":"An optimization methodology is proposed to minimize the catalyst loading cost and the start-of-run temperature of a hydrotreating unit producing ultra-low sulfur diesel by applying a dual-bed catalyst stacking configuration. The methodology involves prior estimation of kinetic parameters for the hydrodesulfurization reaction using experimental data from single-bed evaluations of each catalyst followed by statistical analyses. The variables in the objective function are the order of the two catalyst beds inside the reactor, their volumetric proportions, and the start-of-run temperature, along with the restrictions of the target sulfur content (15 ppm) and operating constraints. The results suggest that the difference between the estimated reaction orders of the catalysts influences their optimal sequence and volumetric percentages in a dual-bed configuration to maximize the synergetic effect. The benefits of using an optimized catalyst stacking system include a reduction of 2.6 °C in the start-of-run temperature and an 18.75% cut in the total catalyst cost over a 10-year planning horizon compared to a high-activity catalyst single bed.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Data-Driven Discovery of Reaction Pathways for Modeling Catalytic Cracking of Hydrocarbons 通过数据驱动发现反应途径，建立碳氢化合物催化裂化模型

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-11 DOI: 10.1021/acs.iecr.4c03131

Elizabeth R. Belden, Avery Brown, Randy C. Paffenroth, Nikolaos K Kazantzis, Michael T. Timko

{"title":"Data-Driven Discovery of Reaction Pathways for Modeling Catalytic Cracking of Hydrocarbons","authors":"Elizabeth R. Belden, Avery Brown, Randy C. Paffenroth, Nikolaos K Kazantzis, Michael T. Timko","doi":"10.1021/acs.iecr.4c03131","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c03131","url":null,"abstract":"Modeling complex chemical reactions is a long-standing challenge in chemical reaction engineering. Group type analysis is commonly used for reducing the complexity of the reaction model while retaining sufficient chemical information for a particular application. This study evaluates a data-driven approach based on mathematical similarity as a new tool for identification of groups for use in group type reaction models. Data for dodecane cracking in the supercritical state over Zeolite Socony Mobil-5 (ZSM-5) was used as a test system. Mathematical similarity analysis of the raw data differentiated as many as five different groups. Adding synthetic data did not affect the groups identified by similarity analysis, indicating that the separation was not limited by the number of data points. Scaling or normalizing the data improved the separation of the similarity analysis. To test the data-identified groups, different types of reaction models were generated systematically, kinetic parameters regressed, and the resulting predictions compared with experimental data. The resulting reaction models consisted either of parallel or sequential reactions. As a general statement, the reaction models consisting of parallel reactions were more accurate than those consisting of sequential reactions. Additional tests showed that user defined groups could be added to those identified mathematically to improve the accuracy of predictions for target species without sacrificing overall accuracy. The similarity approach was applied to a data set consisting of catalytic dodecane cracking in the presence of water added to the reaction mixture (50 wt %). The proposed similarity analysis identified different groups in the presence and absence of water, indicating that the data-driven approach can be used to identify qualitative differences in the reaction pathways. It is therefore demonstrated that data-driven identification of group types represents a useful new tool for development of group type models.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142405469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Waste PET Bottle Derived, Hierarchical Core–Shell Activated Charcoal Reinforced PET Nanofiber: A Sustainable and Scalable Closed Carbon Loop Solution for Formaldehyde Sensing 废 PET 瓶衍生的分层核壳活性炭增强 PET 纳米纤维：用于甲醛传感的可持续、可扩展的碳闭环解决方案

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-10 DOI: 10.1021/acs.iecr.4c02596

Bhuman Gangopadhyay, Sourav Kanungoe, Abhisek Majhi, Mir Sahanur Ali, Rajarshi Das, Nandan Saha, Prokash Das, Sayantan Dutta, Dipankar Chattopadhyay

{"title":"Waste PET Bottle Derived, Hierarchical Core–Shell Activated Charcoal Reinforced PET Nanofiber: A Sustainable and Scalable Closed Carbon Loop Solution for Formaldehyde Sensing","authors":"Bhuman Gangopadhyay, Sourav Kanungoe, Abhisek Majhi, Mir Sahanur Ali, Rajarshi Das, Nandan Saha, Prokash Das, Sayantan Dutta, Dipankar Chattopadhyay","doi":"10.1021/acs.iecr.4c02596","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c02596","url":null,"abstract":"Formaldehyde (HCHO) and PET disposal are significant environmental issues. Synthesizing activated charcoal and electrospun PET nanofiber mats using waste plastic bottles as carbon precursors has potential for formaldehyde sensing. Solvent-based electrospinning produces recycled PET nanofibers, with varying amounts of AC loading (0–1.25 Wt%). The material properties of these NF mats were determined by Scanning Electron Microscopy (SEM), Transmission Electron Spectroscopy (TEM), Infrared spectroscopy (IR), Tensile testing, X-ray diffraction (XRD), Differential Scanning Calorimetry (DSC), and Water Contact Angle (WCA). The NF film mat with an AC content of 0.75 Wt% exhibited the best current response, which in turn was fabricated to form a resistive sensor of HCHO by Electrochemical Impedance Spectroscopy (EIS). The prepared sensor exhibited an extensive dynamic response range (1–300 ppm) with low limit of detection (0.352 ppm), ultrasensitivity, excellent selectivity, and reproducibility. The electrospinning technique to generate PET nanofiber mats and ionothermal synthesis of N-doped AC, from used PET bottles, other than being an easy and ultrasensitive platform for formaldehyde sensing, will also achieve maintaining a closed carbon loop. The flexible sensing platform has the capability to function as a suitable carrier for immobilizing other biological or harmful chemical entities as recognition elements on the surface of electrospinning nanofibers, paving the way for the development of additional electrospun nanofibers to establish ultrasensitive sensors with favorable sensitivity and analytical performance. Other than that, this sensor can be utilized for detecting HCHO in adulterated milk samples, juices, and other liquid food products.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic Synthesis of Methyl N-Phenyl Carbamate by Ce-Based Complex Oxides 铈基复合氧化物催化合成 N-苯基氨基甲酸甲酯

IF 4.2 3区工程技术

Industrial & Engineering Chemistry Research Pub Date : 2024-10-10 DOI: 10.1021/acs.iecr.4c01850

Ci Li, Conghui Che, Fang Li, Wei Xue, Jing Li, Xinqiang Zhao, Yanji Wang

{"title":"Catalytic Synthesis of Methyl N-Phenyl Carbamate by Ce-Based Complex Oxides","authors":"Ci Li, Conghui Che, Fang Li, Wei Xue, Jing Li, Xinqiang Zhao, Yanji Wang","doi":"10.1021/acs.iecr.4c01850","DOIUrl":"https://doi.org/10.1021/acs.iecr.4c01850","url":null,"abstract":"Ce-based composite oxides were used for catalyzing the methyl N-phenyl carbamate (MPC) synthesis from aniline and dimethyl carbonate. Among them, CuO–CeO2 exhibited the best catalytic performance. Characterization results showed that the second metal (Cu, Zn, Mn, Co, and Zr) can be doped into the CeO2 lattice and led to strong interactions, modifying the content of Ce3+, oxygen vacancy, and acidity of the catalyst. Notably, Ce3+, oxygen vacancies, and weak Lewis acid sites are beneficial to MPC synthesis. Additionally, CuO–CeO2–M, prepared by mechanical mixing, exhibited better catalytic activity than CuO–CeO2–C prepared by co-precipitation. This was due to the preparation method affecting the interaction between CuO and CeO2. CuO primarily interacted with CeO2 through interfacial contact in CuO–CeO2–C, whereas the interaction in CuO–CeO2–M involves both this interfacial contact effect and the presence of solid solution structures, thereby influencing the content of Ce3+, oxygen vacancy, and acidity.","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142398225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0