Chinese Journal of Chemical Engineering最新文献

{"title":"Nitrogen-doped composite aerogels from ZIF-8 derived porous carbon and chitosan for CO2 adsorption","authors":"Xiaoqian Peng ,&nbsp;Shaojun Liu ,&nbsp;Jing Zhang ,&nbsp;Xu Zhang ,&nbsp;Xiaochan Liu ,&nbsp;Zhipeng Yuan ,&nbsp;Guoran Liu ,&nbsp;Xibin Yi ,&nbsp;Serguei Filatov","doi":"10.1016/j.cjche.2025.01.009","DOIUrl":"10.1016/j.cjche.2025.01.009","url":null,"abstract":"<div><div>It is well known that adsorbent material is the key to determine the CO₂ adsorption performance. Herein, ZIF-8 derived porous carbon (ZIF-8-C) is anchored into the framework of a novel composite aerogel (ZCP<em>x</em>), which utilizes chitosan (CS) and polyvinyl alcohol (PVA) as raw materials. By controlling the ratio of ZIF-8-C, the developed hierarchical porous structures combine the advantages of micropores, mesopores, and macropores. Besides, the ligand material of ZIF-8-C and the amino group from CS are two sources of the high nitrogen content of ZCP<em>x</em>. The optimized sample ZCP4 shows a high nitrogen content of 6.78%, which can create more active centers and supply basic sites, thereby enhancing the CO₂ adsorption capacity. Moreover, ZCP4 composite aerogel presents a CO₂ adsorption capacity of 2.26 mmol·g⁻¹ (298 K, 1 bar (equivalent to 100 kPa)) and CO₂/N₂ selectivity (<span><math><msub><mi>S</mi><mrow><msub><mi>CO</mi><mn>2</mn></msub><mo>/</mo><msub><mtext>N</mtext><mn>2</mn></msub></mrow></msub></math></span>) can reach 20.02, and the dynamic breakthrough experiment is performed to confirm the feasibility of CO₂/N₂ actual separation performance, proving that the composite aerogel is potential candidates for CO₂ adsorption.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 95-104"},"PeriodicalIF":3.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123320","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":"Separation and recovery of V/W/Na from waste SCR catalyst leaching solution using membrane electrolysis – Ion morphology pretreatment solvent extraction-stripping method","authors":"Bo Pan ,&nbsp;Muneeb Ul Hassan Naseer ,&nbsp;Hao Du ,&nbsp;Shaona Wang ,&nbsp;Yeqing Lyu ,&nbsp;Biao Liu ,&nbsp;HaiXu Wang ,&nbsp;Lanjie Li","doi":"10.1016/j.cjche.2025.02.016","DOIUrl":"10.1016/j.cjche.2025.02.016","url":null,"abstract":"<div><div>In this study, a cleaner method for separation and recovery of V/W/Na in waste Selective catalytic reduction (SCR) catalyst alkaline leaching solution was proposed. The method involved membrane electrolysis followed by ion morphology pretreatment and solvent extraction. An acidic V(V)/W(VI) solution was obtained using the membrane electrolysis method without adding any other chemical reagents. In addition, Na was recovered in the form of NaOH by product, avoiding the generation of Na containing wastewater. The electrolysis parameters were investigated, the lowest power consumption of 3063 kW·h·t⁻¹ NaOH was obtained at a current density of 125 A·m⁻²and an initial NaOH concentration of 2 mol·L⁻¹. After electrolysis, oxalic acid was added to the acidic V/W containing solution, converting V(V) negative ion to V(IV) positive ion. Since W(VI) ion state remained in negative form, the generation of heteropolyacid ions (W_<em>x</em>V_<em>y</em>O_<em>z</em>^{<em>n</em>−}) was prevented. It was found that under the condition of oxalic acid addition/theoretical consumption 1.2 and reaction temperature 75 °C, 100% V(V) was converted to V(IV). Using 10% N263 + 10% <em>n</em>-octanol+80% sulfonated kerosene as extractant, the highest W(VI)/V(IV) separation coefficient of 7559.76 was obtained at pH = 1.8, O:A ratio = 1:1 and extraction time 15 min. With 2 mol·L⁻¹ NaOH as stripping reagent, the W stripping efficiency reached 98.50% at O:A ratio = 2:1 after 4-stages of stripping. The enrichment of V remained in the solution was realized using P204 as extractant and 20% (mass) H₂SO₄ as stripping reagent. The parameters of extraction/stripping process were investigated, using 10% P204 + 10% TBP+80% sulfonated kerosene as extractant, the V extraction efficiency reached 97.50% at O:A ratio = 1:2 after 4 stages of extraction. Using 20% H₂SO₄ as the stripping reagent, the V stripping efficiency was 98.30% at an O:A ratio of 4:1 after five stages of stripping. After the entire process, a high-purity VOSO₄ and Na₂WO₄ product solutions were obtained with V/W recovery efficiency 95.84%/98.50%, separately. This study examined a more effective and cleaner method for separating V/W/Na in Na₂WO₄/NaVO₃ solution, which may serve as a reference for the separation and recovery of V/W/Na in waste SCR catalysts.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 153-164"},"PeriodicalIF":3.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138909","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":"Organic solvent nanofiltration polymeric membranes: Recent progress, applications, challenges, and perspectives","authors":"Qianwen Su,&nbsp;Xiuming Zhang,&nbsp;Daohui Zhao,&nbsp;Ming Li","doi":"10.1016/j.cjche.2024.06.032","DOIUrl":"10.1016/j.cjche.2024.06.032","url":null,"abstract":"<div><div>Organic solvent nanofiltration (OSN) is an efficient, low-energy and environmentally friendly phase-free separation process. Obviously, the core of OSN lies in the fabrication of solvent-resistant nanofiltration membranes. Although membrane materials reported in the literature such as 2D membranes, porous organic cages, <em>etc</em>. have the potential for ultra-high performance, polymeric membranes provide key advantages in mass production and processability. Therefore, this review focuses on polymeric materials for OSN. This review summarizes the recent progress of polymeric materials, including emerging and traditional polymeric membranes. Then, a summary of recent progress about strategies developed for perm-selective nanofilms are presented, followed by a brief overview of commercial membrane technology for OSN. Finally, major challenges of OSN and future research directions are presented. Close interaction between the academic research and practical application would help improve greener and more sustainable manufacturing processes.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 196-208"},"PeriodicalIF":3.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167813","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":"Preparation and modification of membranes for extracorporeal membrane oxygenator: A review","authors":"Donghai Sheng ,&nbsp;Lin Zhang ,&nbsp;Guo Yang ,&nbsp;Baoming Guo ,&nbsp;Longsheng Lin ,&nbsp;Yongqi Shi ,&nbsp;Song Yuan ,&nbsp;Jinnan Wang ,&nbsp;Yuan Li ,&nbsp;Beibei Feng","doi":"10.1016/j.cjche.2024.04.031","DOIUrl":"10.1016/j.cjche.2024.04.031","url":null,"abstract":"<div><div>Extracorporeal membrane oxygenation (ECMO) has been developed for nearly 70 years, and it is the main technology to treat cardiopulmonary failure and continue to maintain life. As the core component of the ECMO system, the gas exchange membrane possesses low gas permeability and plasma leakage at present. In addition, the membrane material exists low blood compatibility, causing the formation of thrombosis. Therefore, the membrane material with high gas permeability and blood compatibility are urgently needed. This paper summarizes the membrane development process, preparation method, and modification method. It provides a new idea for the preparation and coating modification as artificial lung membrane.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 39-56"},"PeriodicalIF":3.7,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123325","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":"Enhancing biomethane production from corn stover via anaerobic digestion incorporated with microbial electrolysis cell","authors":"Qing Zhao ,&nbsp;Hairong Yuan ,&nbsp;Heran Wang ,&nbsp;Xiujin Li","doi":"10.1016/j.cjche.2025.02.007","DOIUrl":"10.1016/j.cjche.2025.02.007","url":null,"abstract":"<div><div>Bioelectrochemical regulation has been proved to enhance the traditional anaerobic digestion (AD) of organic wastes. However, few investigations have explored whether it is possible to enhance the production of biomethane from raw corn stover (CS). A single-chamber microbial electrolysis cell (MEC) was incorporated with an AD to form a new system (MEC-AD) with aiming at more efficient bioconversion of CS to biomethane. The performance and microbiological characteristics of MEC-AD was investigated, and compared with conventional AD, which were inoculated with original inoculum (UAD) and electrically domesticated inoculum (EAD), respectively. The results showed that MEC-AD achieved the highest CH₄ yield of 239.13 ml·g⁻¹ VS, which was 29.28% and 12.44% higher than those of UAD and EAD, respectively. MEC-AD also achieved higher substance conversion rates of 73.24% VS, 91.16% cellulose, and 77.24% hemicellulose, respectively. The community characteristics of microorganisms revealed that the relative abundance and interactions of functional microorganisms in MEC-AD were obviously different from UAD and EAD. In MEC-AD, Electroactive bacteria (<em>Sedimentibacter</em>) with electrotrophic methanogens (<em>Methanosarcina</em> and <em>Methanosaeta)</em> in anodic biofilms established electrotrophic methanogenesis through direct interspecies electron transfer (DIET). The process of methanotrophic methanogenesis was facilitated by the interactions between fermentative acid-producing bacteria (FABs), syntrophic organic acid oxidation bacteria (SOBs), and methylotrophic methanogens (Methyl-HMs) in MEC-AD suspensions. Efficient synergistic interactions between these functional microorganisms improved the performance of MEC-AD in converting CS to produce biomethane. The study could provide an effective means for achieving higher AD biomethane production from raw CS.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"83 ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588319","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":"Experimental research on enhanced the microfine oil droplets separation using hydrocyclone coupled with fiber coalescence","authors":"Lian Zhang,&nbsp;Zhaojin Lu,&nbsp;Likun Ma,&nbsp;Zhishan Bai","doi":"10.1016/j.cjche.2025.02.008","DOIUrl":"10.1016/j.cjche.2025.02.008","url":null,"abstract":"<div><div>The limitations of swirl separation in removing microfine oil droplets in water have driven the development of hydrocyclone technology coupled with multiphase or multifield techniques. To enhance microfine oil droplets separation, a novel hydrocyclone separation coupled with fiber coalescence (HCCFC) was designed. The interaction between fiber balls and oil droplets inside the hydrocyclone, including droplet coalescence and breakage, was investigated. The influence of different operating parameters on separation efficiency was discussed. The results showed that fiber balls promoted oil droplet coalescence when the inlet droplet size (<span><math><mrow><msub><mi>D</mi><mn>43</mn></msub></mrow></math></span>) was below 22.37 μm but caused droplet breakage above this threshold. The coalescence performance of HCCFC improved with increasing inlet oil content but declined beyond 450 mg·L⁻¹. Separation experiments confirmed that HCCFC outperformed conventional hydrocyclone, with separation efficiency increasing by 2.9% to 20.0%. As the fiber ball content and inlet flow rate increased, the separation efficiency showed a trend of first increasing and then decreasing. Additionally, HCCFC's separation efficiency varied with inlet oil droplet size distribution, showing the most significant enhancement when <span><math><mrow><msub><mi>D</mi><mn>43</mn></msub></mrow></math></span> was 22.37 μm, where separation efficiency increased by 14.4%. These findings offer insights into the development and application of multiphase coupled with hydrocyclone technology.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 15-24"},"PeriodicalIF":3.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123323","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":"Migration/transformation characteristics of heavy metals and polycyclic aromatic hydrocarbons in the co-liquefaction treatment of pig manure and lignocellulosic biomass","authors":"Zimin Luo ,&nbsp;Xinyi Huang ,&nbsp;Chunfei Zhou ,&nbsp;Min Jiang ,&nbsp;Xiaoping Liu ,&nbsp;Huajun Huang","doi":"10.1016/j.cjche.2025.01.012","DOIUrl":"10.1016/j.cjche.2025.01.012","url":null,"abstract":"<div><div>The migration/transformation characteristics of heavy metals and polycyclic aromatic hydrocarbons (PAHs) during the co-liquefaction of pig manure and rice straw/wood sawdust were explored in this study. More than 87% of the heavy metals in feedstocks were enriched in hydrochars. The decreased proportion of active heavy metals in the hydrochars suggested partial passivation of the heavy metals. The pollution degree and risk of heavy metals were significantly mitigated from high and considerable levels in pig manure to moderate and low levels in hydrochar, respectively. Compared with commercial diesel, bio-oil products still contained an undesirable amount of heavy metals. PAHs were re-synthesized during liquefaction, with a net synthesis amount of 29.65–73.98 mg·kg⁻¹. Moreover, the PAHs mainly existed in bio-oils, with a content of 57.32–132.33 mg·kg⁻¹ and a toxicity equivalent of 3.25–8.19 mg·kg⁻¹. Compared to pig manure, the hydrochars presented a lower content of PAHs (1.76–3.53 mg·kg⁻¹ <em>versus</em> 3.73 mg·kg⁻¹) and a smaller toxicity equivalent (0.14–0.22 mg·kg⁻¹ <em>versus</em> 0.26 mg·kg⁻¹). Interestingly, introducing lignocellulose (especially for rice straw) during the liquefaction of pig manure further mitigated the pollution degree/risk of heavy metals and PAHs. Overall, hydrochar reached a safe utilization level, while bio-oil products needed further clarification.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 222-234"},"PeriodicalIF":3.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167815","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":"Numerical simulation of circulating fluidization roasting desulfurization of high-sulfur bauxite based on computational particle fluid dynamics method","authors":"Langfeng Fan ,&nbsp;Chengming Xie ,&nbsp;Qijin Wei ,&nbsp;Hongliang Zhao ,&nbsp;Rongbin Li ,&nbsp;Yongmin Zhang ,&nbsp;Fengqin Liu ,&nbsp;Hong Yong Sohn","doi":"10.1016/j.cjche.2025.01.007","DOIUrl":"10.1016/j.cjche.2025.01.007","url":null,"abstract":"<div><div>As a pyrometallurgical process, circulating fluidized bed (CFB) roasting has good potential for application in desulfurization of high-sulfur bauxite. The gas–solid distribution and reaction during CFB roasting of high-sulfur bauxite were simulated using the computational particle fluid dynamics (CPFD) method. The effect of primary air flow velocity on particle velocity, particle volume distribution, furnace temperature distribution and pressure distribution were investigated. Under the condition of the same total flow of natural gas, the impact of the number of inlets on the desulfurization efficiency, atmosphere mass fraction distribution and temperature distribution in the furnace was further investigated.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 138-152"},"PeriodicalIF":3.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134529","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":"Dynamic load characteristics and wake vortex structure of spiral finned cylinders in cross-flow","authors":"Hewei Yang ,&nbsp;Bowen Tang ,&nbsp;Ye Tian ,&nbsp;Wei Tan","doi":"10.1016/j.cjche.2025.02.009","DOIUrl":"10.1016/j.cjche.2025.02.009","url":null,"abstract":"<div><div>In this study, four types of spiral fins with varying parameters were mounted on an upstream cylinder, and the effects of spiral fins on the vibration response of heat exchange tubes and the vortex structure in cross flow were studied through experiments and numerical simulations. The results indicate a strong dependency of the cylinder's vibration response on the fin parameters. The results indicate that the vibration response and wake structure of the cylinder are significantly influenced by the parameters of the fins. The introduction of a finned cylinder affects both its own vibration amplitude and frequency, as well as the downstream cylinder. The amplitudes of finned cylinders I and III are reduced by 57.8% and 59.9%, respectively, compared to the bare cylinder. This reduction helps to restrain vibration and diminishes the amplitudes of the downstream cylinder. Although finned cylinder II slightly decreases its own vibration, it increases the amplitude of the downstream cylinder by 13.7%. The mean drag coefficient and the root mean square of the lift coefficient of the finned cylinder are higher than those of the bare cylinder when the finned cylinder is positioned upstream. Smaller pitch and larger equivalent diameter will lead to increased drag, resulting in enhanced vortex shedding in the wake, which amplifies the vibrations of the cylinder in that wake. The downstream of finned cylinder II has the widest wake and higher vortex strength, and the dynamic load and vibration of the downstream cylinder are increased. The vortex intensity decays faster in the wake of finned cylinder III, and the vibration of the downstream cylinder is weaker.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 105-115"},"PeriodicalIF":3.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123321","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":"Adsorption process for purifying vanadium from chromium-contaminated leaching solutions using zirconium-based adsorbents","authors":"Biao Yuan ,&nbsp;Fujin Sun ,&nbsp;Pingting Chen ,&nbsp;Kunpeng He ,&nbsp;Pan Wu ,&nbsp;Changjun Liu ,&nbsp;Jian He ,&nbsp;Wei Jiang","doi":"10.1016/j.cjche.2025.01.008","DOIUrl":"10.1016/j.cjche.2025.01.008","url":null,"abstract":"<div><div>With the development of vanadium redox flow battery technology, the demand for pure vanadium is rapidly increasing. The separation of vanadium from vanadium–chromium leaching solutions are critical step in the production of purity-vanadium. This study presents an innovative adsorption process that utilizes amorphous ZrO₂ (AZrO) for the selective separation of V(V) and Cr(VI). In this process, a high adsorption capacity for V(V) at 64.5 mg·g⁻¹ was achieved, while the capacity for Cr(VI) is relatively low at 24.1 mg·g⁻¹, demonstrating good separation performance. This is mainly caused by the large specific surface area and mesoporous structure, which are favorable for molecular diffusion and mass transfer. The kinetic analysis shows that the adsorption process follows pseudo-second-order kinetic process with chemisorption being the rate-controlling process. AZrO showed excellent separation performance in mixed solutions over a wide range of concentrations. After five cycles, AZrO retained over 73% of its capacity, indicating good stability. In mixed solutions containing up to 40 g·L⁻¹ of V(V) and 3 g·L⁻¹ of Cr(VI), the innovative adsorption process successfully achieved effective separation and purification. By an adsorption–desorption process using 0.1 mol·L⁻¹ NaOH, a 99.02% V(V)-rich solution was obtained from a high concentration sodium vanadium slag leaching solution, demonstrating its effectiveness for practical industrial applications.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"82 ","pages":"Pages 125-137"},"PeriodicalIF":3.7,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134478","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}