Chinese Journal of Chemical Engineering最新文献

{"title":"Micromixing efficiency and enhancement methods for non-Newtonian fluids in millimeter channel reactors","authors":"Zhaoyi Song ,&nbsp;Yuanxi Zhang ,&nbsp;Guangwen Chu ,&nbsp;Lei Shao ,&nbsp;Yang Xiang","doi":"10.1016/j.cjche.2024.08.006","DOIUrl":"10.1016/j.cjche.2024.08.006","url":null,"abstract":"<div><div>Millimeter channel reactors (MCRs) have received increasing attention because of their ability to enhance treatment capacity in addition to the advantages of microchannels. In previous studies, less work has been conducted on the micromixing process and enhancement strategies for non-Newtonian fluids in MCRs. In this study, the micromixing efficiency in MCRs was experimentally investigated using CMC (aqueous carboxymethyl cellulose sodium) aqueous solution to simulate a non-Newtonian fluid, and the enhanced mechanism of micromixing efficiency by the addition of internals and rotation was analyzed by computational fluid dynamics (CFD) simulations. The results show that in the conventional channel, increasing the flow rate improves the micromixing efficiency when the CMC concentration is low. However, when the CMC concentration is higher, the higher the flow rate, the lower the micromixing efficiency. The highest micromixing efficiency is obtained for the rotationally coupled inner components, followed by the single rotation and the lowest is for the internals only. CFD simulations reveal that the most effective way to improve the micromixing efficiency of non-Newtonian fluids with shear-thinning behavior is to increase the shear force in the reactor, which effectively reduces the apparent viscosity. These results provide the theoretical foundation for enhancing the micromixing process of non-Newtonian fluids in small-size reactors.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 108-119"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133769","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}

{"title":"Properties evolutions during carbonization of carbon foam using lignin as sole precursor","authors":"Chen Liang ,&nbsp;Weiqiang Chen ,&nbsp;Linghong Yin ,&nbsp;Xianli Wu ,&nbsp;Jie Xu ,&nbsp;Chunhua Du ,&nbsp;Wangda Qu","doi":"10.1016/j.cjche.2024.10.013","DOIUrl":"10.1016/j.cjche.2024.10.013","url":null,"abstract":"<div><div>Lignin has been proved to be a promising precursor for producing carbon foam. The thermal and chemistry properties of lignin during its thermal conversion make it quite unique comparing with other precursors, and the conversion parameters can clearly affect the properties of the derived products. Therefore, this study systematically investigated the effects of key carbonization parameters on the properties of the resulting carbon foam materials. The findings demonstrate that the performance of the self-shaping lignin-derived carbon foam is simultaneously influenced by the factors that carbonization temperature, heating rate, and carbonization duration. Specifically, the carbonization temperature and carbonization duration have a significant impact on the mechanical performance, where higher temperatures and long carbonization time improve compressive strength and specific strength. Moreover, the data revealed that elevated temperatures, rapid heating rates, and shortened carbonization periods collectively promoted the development of higher porosities and larger pore diameters within the carbon foam structure. Conversely, lower carbonization temperatures, slower heating rates, and extended carbonization durations facilitated the formation of microporous in the carbon foam. This study provides a scientific foundation for optimizing the production of lignin-derived carbon foam with tailored properties and performance characteristics.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 33-43"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133671","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}

{"title":"Heteropolyacid hosted to nano-silica catalyst for the oxidation of methacrolein","authors":"Gang Hu ,&nbsp;Qinqin Wang ,&nbsp;Mingyuan Zhu ,&nbsp;Lihua Kang","doi":"10.1016/j.cjche.2024.10.027","DOIUrl":"10.1016/j.cjche.2024.10.027","url":null,"abstract":"<div><div>In this study, a catalyst was synthesized using a two-step <em>in-situ</em> molecular beam epitaxy method to grow H₄PMo₁₁VO₄₀ (HPAV) on amination-treated SiO₂ nanoparticles, which served as both dopant and host agents. SiO₂ dopant was modified with (3-aminopropyl)triethoxysilane (APTS), facilitating the formation of ammonium ions that enhanced the overall positive charge. This modification enabled the effective dispersion and exposure of HPAV's active species and induced a structural transformation of HPAV from a triclinic to a cubic crystal phase. The two-step hosting growth process optimized the proportions of Cs⁺, H⁺ and NH₄⁺ antinuclear ions, thereby fine-tuning the synergistic catalysis of oxidation and acidity, as well as the oxidative sensitivity at HPAV catalytic interface. The resultant 8(HPAV)&amp;4(Cs₃PAV)-NH₂-SiO₂ catalyst achieved a methacrolein (MAL) conversion rate of 84% and a methacrylic acid (MAA) selectivity of 71%. Even after 10.5 h of reaction time, the catalyst retained its high dispersion, cubic crystal structure, and Keggin configuration, demonstrating stable catalytic performance over a continuous 200-h reaction period.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 150-162"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133770","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}

{"title":"CO2-gasification of corncob in a molten salt environment","authors":"Zhiying Feng,&nbsp;Kaifeng Liu,&nbsp;Tao Zhu,&nbsp;Dongfang Li,&nbsp;Xing Zhu","doi":"10.1016/j.cjche.2024.07.027","DOIUrl":"10.1016/j.cjche.2024.07.027","url":null,"abstract":"<div><div>Molten salt gasification is a promising technology for biomass conversion due to its advantages of superior heat transfer and the ability of utilizing solar energy to reduce carbon emission. In this study, the characteristics of corncob CO₂-gasification in molten salt environments is thoroughly investigated, and the approach of introducing Fe₂O₃ as catalyst to enhance the syngas yield is proposed. The results showed that the molten salts significantly promoted the conversion of corncob into gaseous products with very low tar and char yield. Compared to O₂ and H₂O atmospheres, utilizing CO₂ as gasifying agent enhanced the yield of gaseous products during the corncob gasification, especially the yields of CO and H₂. The introduction of Fe₂O₃ as a catalyst could further increase the yield of gaseous products and the cold gas efficiency (CGE), and the yield of syngas was increased into 2258.3 ml·g⁻¹ with a high CGE of 105.8% in 900 °C. The findings evidenced that CO₂ gasification in the molten salt environment with Fe₂O₃ addition can promote the cracking of tar, increasing the syngas yield significantly. Moreover, the energy required to drive the gasification process was calculated, and the total energy consumption was calculated as 16.83 GJ·t⁻¹. The study opened up a new solution for the biomass gasification, exhibiting a great potential in distributed energy or chemical systems.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 58-66"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133776","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}

{"title":"Thermal coupling study during the co-processing of coal and biomass in the lab-scale adiabatic reactor","authors":"Laisong Wang,&nbsp;Zhidi Du,&nbsp;Jie Feng,&nbsp;Xiaolong Shi,&nbsp;Wenying Li","doi":"10.1016/j.cjche.2024.10.018","DOIUrl":"10.1016/j.cjche.2024.10.018","url":null,"abstract":"<div><div>A lab-scale adiabatic reactor has been self-made to characterize the coupled properties of heat and reactions during the co-thermal-processing of coal and biomass with steam or steam/O₂ gasification agents. Results showed that the synergistic effects caused by heat transfer between corncob and coal at different mixing ratios were heavily determined by coal rank and gasification agent. During steam co-processing, the heat transfer from corncob char to adjacent bituminous coal char promoted the water-gas reaction on coal char and contributed to synergistic effects; the heat transfer from anthracite char to adjacent corncob char reduced the kinetic rate of the water-gas reaction on coal char and contributed to inhibitory effects, and the inhibitory effect caused by heat transfer was greater than the promotion effects of biomass mass transfer. The introduction of O₂ diminished the impact of inter-particle heat transfer and altered the intensity of synergy, decreasing the values of synergy factor of bituminous coal/corncob blends by 17% and increasing the value of synergy factor of anthracite/corncob blends by 142.5%. This study provides sufficient support for the process conditions selection for the production of syngas with specific H₂/CO molar ratios and the desired level of gasification performance.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 303-313"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143134296","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}

{"title":"A parallel chemical reaction optimization method based on preference-based multi-objective expected improvement","authors":"Mingqi Jiang ,&nbsp;Zhuo Wang ,&nbsp;Zhijian Sun ,&nbsp;Jian Wang","doi":"10.1016/j.cjche.2024.11.004","DOIUrl":"10.1016/j.cjche.2024.11.004","url":null,"abstract":"<div><div>Optimizing chemical reaction parameters is an expensive optimization problem. Each experiment takes a long time and the raw materials are expensive. High-throughput methods combined with the parallel Efficient Global Optimization algorithm can effectively improve the efficiency of the search for optimal chemical reaction parameters. In this paper, we propose a multi-objective populated expectation improvement criterion for providing multiple near-optimal solutions in high-throughput chemical reaction optimization. An l-NSGA2, employing the Pseudo-power transformation method, is utilized to maximize the expected improvement acquisition function, resulting in a Pareto solution set comprising multiple designs. The approximation of the cost function can be calculated by the ensemble Gaussian process model, which greatly reduces the cost of the exact Gaussian process model. The proposed optimization method was tested on a S_NAr benchmark problem. The results show that compared with the previous high-throughput experimental methods, our method can reduce the number of experiments by almost half. At the same time, it theoretically enhances temporal and spatial yields while minimizing by-product formation, potentially guiding real chemical reaction optimization.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 82-92"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133773","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}

{"title":"Advances in the preparation process and mechanism study of high-purity anhydrous magnesium chloride from magnesium chloride hexahydrate","authors":"Hui Ming ,&nbsp;Xudong Zhang ,&nbsp;Xinping Huang ,&nbsp;Lihua Cheng ,&nbsp;Libo Zhang","doi":"10.1016/j.cjche.2024.10.016","DOIUrl":"10.1016/j.cjche.2024.10.016","url":null,"abstract":"<div><div>In the extraction of potassium from salt lakes, Mg is abundant in the form of bischofite (MgCl₂·6H₂O), which is not utilized effectively, resulting in the waste of resources and environmental pressure. Anhydrous MgCl₂ prepared by the dehydration of bischofite is a high-quality raw material for the production of Mg. However, direct calcination of MgCl₂·6H₂O in industrial dehydration processes leads to a large amount of hydrolysis. The by-products are harmful to the electrolysis process of Mg, causing problems such as sludge formation, low current efficiency, and corrosion in the electrodes. To obtain high-purity anhydrous MgCl₂, different advanced dehydration processes have been proposed. In this review, we focus on the recent progress of the dehydration process. Firstly, we discuss the molecular structure of MgCl₂·6H₂O and explain the reason why much hydrolysis occurs in dehydration. Secondly, we introduce the specific dehydration processes, mainly divided into direct dehydration processes and indirect dehydration processes. The direct dehydration processes are classified into gas protection heating and molecular sieve dehydration process. Indirect dehydration processes are classified into thermal dehydration of ammonium carnallite (NH₄Cl·MgCl₂·6H₂O), thermal dehydration of potassium carnallite (KCl·MgCl₂·6H₂O), thermal decomposition of the [HAE]Cl·MgCl₂·6H₂O, organic solvent distillation, ionic liquid dehydration process and ammonia complexation process. In the meanwhile, purity of anhydrous MgCl₂ of each dehydration process, as well as the advantages and disadvantages, is discussed. The characteristics of different processes with a simple economic budget are also given in this paper. Finally, the main challenges are evaluated with suggested directions in the future, aiming to guide the synthesis of high-purity anhydrous MgCl₂.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 1-23"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133779","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}

{"title":"Enhanced visible-light-driven CO2 photoreduction into methanol using PtO/GdFeO3 nanocomposites","authors":"Ali Fawad ,&nbsp;Zaman Saeed ,&nbsp;Yimeng Sun ,&nbsp;Xu Zhang ,&nbsp;Feng Zhang ,&nbsp;Guodong Li ,&nbsp;Guangli Yu","doi":"10.1016/j.cjche.2024.10.025","DOIUrl":"10.1016/j.cjche.2024.10.025","url":null,"abstract":"<div><div>Herein, PtO-supported GdFeO₃ (PtO/GdFeO₃) composite photocatalysts were synthesized by a solution-based technique. Extensive analysis using various analytical instruments has shown that PtO plays a crucial function in augmenting the visible light absorption capacity of composites. Better photogenerated charge carrier transport was credited with this improvement, which led to a decrease in bandgap energy as low as 2.14 eV. The PtO/GdFeO₃ nanocomposites showed remarkable photocatalytic activity when exposed to visible light, especially in the conversion of CO₂ into CH₃OH. After 9 h of light, a noteworthy yield of 1550 μmol·g⁻¹ of methanol was produced, demonstrating maximum efficiency at a dose of 2.0 g·L⁻¹ and a concentration of 5.0% PtO/GdFeO₃. This yield indicates the effectiveness of the heterostructure, which outperformed pristine GdFeO₃ by a factor of 7.85. This significant enhancement highlights the potential advantages of the modified structure in improving performance. Most significantly, the photocatalyst's durability maintained 98.0% of its initial efficacy throughout five cycles. The success of PtO/GdFeO₃ is largely due to the synergistic light absorption capabilities and enhanced photocharge carrier separation that the integration of PtO produced. It highlights the conversion of CO₂ into valuable chemicals under visible light exposure, as well as the promise of mixed oxide nanostructures in ecologically responsible material creation.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 131-139"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133771","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}

{"title":"Particle bond destruction based on spiral-cyclone coupling mechanism for the cementation of hydrates and mud–sand","authors":"Yang Tang ,&nbsp;Qing Gu ,&nbsp;Na Xie ,&nbsp;Yufa He ,&nbsp;Yunjian Zhou ,&nbsp;Zeliang Li ,&nbsp;Guorong Wang","doi":"10.1016/j.cjche.2024.10.024","DOIUrl":"10.1016/j.cjche.2024.10.024","url":null,"abstract":"<div><div>Weak cementation between natural gas hydrates and mud–sand seriously affects the solid-fluidized mining of natural gas hydrates. In this study, we analyze the debonding of natural gas hydrate sediment (NGHS) particles by applying the principle of spiral-cyclone coupling separation. To achieve this, weakly cemented NGHS particle and mechanical models were established. In the flow field of the spiral-cyclone flow-coupling separator, the motion characteristics of the weakly cemented NGHS particles and the destruction process of the cementation bond were analyzed. The destruction of the bonds mainly occurred in the spiral channel, and the destruction efficiency of the bonds was mainly affected by the rotational speed. Collision analysis of the particles and walls showed that when the velocity is 10–16 m·s⁻¹, the cementation bond can be broken. The greater the speed, the better the effect of the bond fracture. The breaking rate of the cementation bonds was 85.7%. This study is significant for improving the degumming efficiency in natural gas hydrate exploitation, improving the recovery efficiency of hydrates, and promoting the commercialization of hydrate solid fluidization exploitation.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 120-130"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133772","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}

{"title":"Solid − liquid phase diagram of the KNO3 - Ca(NO3)2 - Mg(NO3)2 - H2O system at 313.15 K","authors":"Xiangxia Zeng,&nbsp;Tao Zhang,&nbsp;Li Lv,&nbsp;Wenxiang Tang,&nbsp;Zongpeng Zou,&nbsp;Shengwei Tang","doi":"10.1016/j.cjche.2024.11.002","DOIUrl":"10.1016/j.cjche.2024.11.002","url":null,"abstract":"<div><div>The enrichment of low-grade phosphate rock is an important process to realize sustainable support of phosphorus resources. An aqueous solution containing Ca(NO₃)₂ and Mg(NO₃)₂ is produced during the enrichment of low-grade phosphate rock by leaching of HNO₃ or calcination coupling with leaching of NH₄NO₃ solution. Preparation liquid fertilizer is a preferential way to utilize it. The liquid−solid phase diagrams of Ca(NO₃)₂-Mg(NO₃)₂-H₂O, KNO₃-Mg(NO₃)₂-H₂O, KNO₃-Ca(NO₃)₂-H₂O and KNO₃-Ca(NO₃)₂-Mg(NO₃)₂-H₂O systems at 313.15 K were studied by isothermal dissolution equilibrium method. Two crystallization regions of Ca(NO₃)₂·4H₂O and Mg(NO₃)₂·6H₂O were observed in the phase diagram of the ternary system Ca(NO₃)₂-Mg(NO₃)₂-H₂O, a liquid fertilizer with a maximal total nutrient content of 27.46% and a nutrients ratio of N:Ca:Mg = 8.40:10.37:1 can be formed. A homogenous solution can be formed by mixing Ca(NO₃)₂·4H₂O and Mg(NO₃)₂·6H₂O. In the ternary system KNO₃-Mg(NO₃)₂-H₂O, the crystallization regions of KNO₃, Mg(NO₃)₂·6H₂O and the co-crystallization region of KNO₃ and Mg(NO₃)₂·6H₂O were observed. The obtained maximal total nutrient content of liquid fertilizer is 23.32% with the ratio of N:K₂O = 1:3.39. In the ternary system KNO₃-Ca(NO₃)₂-H₂O, the crystallization regions of Ca(NO₃)₂·4H₂O and KNO₃ were observed. The obtained maximal total nutrient content of liquid fertilizer is 38.41% with the ratio of N:K₂O:Ca = 1.05:1.18:1. A homogenous solution can also be formed by mixing Ca(NO₃)₂·4H₂O and KNO₃ directly. In the quaternary system KNO₃-Ca(NO₃)₂-Mg(NO₃)₂-H₂O, the crystallization regions of Ca(NO₃)₂·4H₂O, Mg(NO₃)₂·6H₂O and KNO₃ and the co-crystallization region of KNO₃ and Mg(NO₃)₂·6H₂O were observed. The obtained maximal total nutrient content of liquid fertilizer is 38.41% with the ratio of N:K₂O:Ca = 1.05:1.18:1. The modified BET model was successfully used to fit the solubility curves. The results can provide a guidance for the formulation of water-soluble fertilizers of N-(K, Ca, Mg).</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"78 ","pages":"Pages 93-107"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143133775","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}