International Journal of Chemical Reactor Engineering最新文献

Bi ₂ S ₃ loaded MXene Ti ₃ C ₂ T _x nanosheet with an adsorption-photocatalytic synergistic removal for tetracycline 吸附-光催化协同去除四环素的bi2s3负载MXene ti3c2tx纳米片

4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2025-02-01 DOI: 10.1515/ijcre-2024-0231

Huan Xi, Lu Wang, Haimeng Huang

{"title":"Bi 2 S 3 loaded MXene Ti 3 C 2 T x nanosheet with an adsorption-photocatalytic synergistic removal for tetracycline","authors":"Huan Xi, Lu Wang, Haimeng Huang","doi":"10.1515/ijcre-2024-0231","DOIUrl":"https://doi.org/10.1515/ijcre-2024-0231","url":null,"abstract":"Abstract Antibiotics in water body pose a threat to the ecosystem and human health, and the removal of antibiotics in water is imperative. Ti 3 C 2 T x has high specific surface area and structural stability, but suffers from low catalytic activity and insufficient utilization of active sites. In this paper, Ti 3 C 2 T x /Bi 2 S 3 composites (named PTB and STB, respectively) were prepared by in situ synthesis and physical composite method. The introduction of Bi 2 S 3 extends the light absorption of the composites to the visible region. Meanwhile, the electron migration resistance in PTB is smaller and the photoresponse current is larger. PTB exhibited better adsorption-photocatalytic performance than STB and pure Ti 3 C 2 T x , with a removal efficiency of 89 %. In addition, the study investigated the effects of water quality parameters and proposed a possible photocatalytic mechanism. Finally, the tetracycline adsorption and photocatalytic performance of PTB in real water samples showed good results, especially in lake water and tap water.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"23 2","pages":"213-222"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147895796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of modified steel slag on properties of rigid polyurethane foam 改性钢渣对硬质聚氨酯泡沫塑料性能的影响

4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2025-01-01 DOI: 10.1515/ijcre-2024-0160

Dan Lv, Qinghai Yu, Mingrui Shen, Yifan Wang, Hongming Long

{"title":"Effect of modified steel slag on properties of rigid polyurethane foam","authors":"Dan Lv, Qinghai Yu, Mingrui Shen, Yifan Wang, Hongming Long","doi":"10.1515/ijcre-2024-0160","DOIUrl":"https://doi.org/10.1515/ijcre-2024-0160","url":null,"abstract":"Abstract The resource utilization of steel slag (SS) represents a critical strategy for integrating environmental protection with sustainable industrial development. In this study, SS was employed as an inorganic filler to investigate the effects of SS particle size and proportion on rigid polyurethane foam (RPUF). Optimal RPUF/SS composites were achieved with an 800-mesh particle size and a 50 % addition ratio. Additionally, the impact of modified SS on the performance of RPUF was examined. The findings indicated a 17.2 % enhancement in thermal insulation properties and a substantial improvement in flame retardancy, evidenced by a 5.7-fold increase in char yield. Despite a reduction in compressive strength, the practical applicability of the composites was not compromised. The performance of the composites was found to be independent of the specific surface area of SS but was significantly influenced by the type of modifier employed (phosphoric acid, formic acid, and silane coupling agents KH550, KH560, KH570). The modification of SS with appropriate agents is essential for enhancing the performance of RPUF/SS composites and for realizing high-value resource utilization of SS in the polyurethane industry.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"23 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2

Effect of manganese(II) and magnesiumg(II) in zinc acid leaching solution on iron precipitation via the hematite process 锌酸浸液中锰（II）和镁（II）对赤铁矿法铁沉淀的影响

4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-09-01 DOI: 10.1515/ijcre-2024-0022

Xuantong Zhou, Fuxian Yang, Zhigan Deng, Xiaohua Peng, Xingbin Li, Chang Wei

{"title":"Effect of manganese(II) and magnesiumg(II) in zinc acid leaching solution on iron precipitation via the hematite process","authors":"Xuantong Zhou, Fuxian Yang, Zhigan Deng, Xiaohua Peng, Xingbin Li, Chang Wei","doi":"10.1515/ijcre-2024-0022","DOIUrl":"https://doi.org/10.1515/ijcre-2024-0022","url":null,"abstract":"Abstract Iron (Fe) removal is a critical step in the hydrometallurgical zinc (Zn) extraction process. Hematite, a stable Fe precipitate, offers an environmentally friendly option that complies with environmental protection standards. While existing research primarily focuses on hematite process technology, there is a lack of studies on how ions in ZnSO 4 leaching solutions affect Fe removal efficiency and hematite particle size distribution. This study investigated the influence of manganese II (Mn(II)) and magnesium II (Mg(II)) concentrations and temperature on both Fe removal efficiency and hematite particle size distribution in ZnSO 4 leaching solution. The results indicated that at various temperatures, the highest Fe removal efficiency occurred with an initial Mn(II) concentration of 10 g/L and an Mg(II) concentration of 15 g/L. As the concentrations of Mn(II) and Mg(II) as well as temperature increased, FeSO₄ crystallization also increased, which adversely affected hematite precipitation. The average particle size of hematite decreases from 300 to 100 nm, resulting in a more uniform particle size distribution, which correlated with the homogeneous solution saturation precipitation mechanism. However, the number of rod-shaped, regular small particles decreases, while the number of irregular, blocky particles increased.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"22 9","pages":"1055-1066"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147880828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

VOCs (toluene) removal from iron ore sintering flue gas via LaBO3 (B = Cu, Fe, Cr, Mn, Co) perovskite catalysts: experiment and mechanism 通过 LaBO3（B = 铜、铁、铬、锰、钴）包晶催化剂去除铁矿烧结烟气中的挥发性有机化合物（甲苯）：实验与机理

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-06-04 DOI: 10.1515/ijcre-2024-0081

Long Ding, Hexi Zhao, Yafei Li, Yi-fan Wang, Hongming Long

{"title":"VOCs (toluene) removal from iron ore sintering flue gas via LaBO3 (B = Cu, Fe, Cr, Mn, Co) perovskite catalysts: experiment and mechanism","authors":"Long Ding, Hexi Zhao, Yafei Li, Yi-fan Wang, Hongming Long","doi":"10.1515/ijcre-2024-0081","DOIUrl":"https://doi.org/10.1515/ijcre-2024-0081","url":null,"abstract":"\u0000 The challenges posed by volatile organic compound (VOC) emissions in iron ore sintering flue gas are significant. La-based perovskite catalysts offer a promising solution for efficiently degrading VOCs. In this study, a series of LaBO3 (B = Cu, Fe, Cr, Mn, Co) perovskite catalysts were synthesized using the sol-gel method. The influence of various B-site elements on the catalyst’s structure and surface chemical properties was thoroughly examined. Simulations were conducted to assess the VOC reduction capabilities of these catalysts under conditions mimicking sintering flue gas composition. It was found that the crystallite size of the perovskite catalyst decreases as the ionic radius of the B-site elements increases, while the specific surface area, total pore volume, and average pore size increase correspondingly. Notably, LaCoO3 and LaMnO3 demonstrated exceptional activity, attributed primarily to their elevated surface oxygen concentration and oxygen migration capability, positioning them as highly promising materials for further development. Furthermore, a proposed mechanism elucidates the La-based perovskite catalytic reduction of toluene, wherein lattice oxygen and adsorbed oxygen undergo mutual conversion during the oxidation process. This mechanism aligns with the L-H and M-v-K models, providing a comprehensive understanding of the catalytic process.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"19 8","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ethyl acetate production by Fischer esterification: use of excess of acetic acid and complete separation sequence 通过费歇尔酯化法生产乙酸乙酯：使用过量乙酸和完整的分离程序

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-27 DOI: 10.1515/ijcre-2024-0019

Pooja P. Sanap, Amit M. Katariya, Yogesh S. Mahajan

引用次数: 0

Thermodynamic and kinetic study on the catalysis of tributyl aconitate by Amberlyst-15 in a cyclic fixed-bed reactor Amberlyst-15 在循环固定床反应器中催化丙酮酸三丁酯的热力学和动力学研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-27 DOI: 10.1515/ijcre-2023-0222

Ailin Deng, Qiqi Ma, Yunxiang Hu, Xin Zhang, S. Yang, Nianhua Song, Wuji Sun, Xuejun Liu, Jianbing Ji

{"title":"Thermodynamic and kinetic study on the catalysis of tributyl aconitate by Amberlyst-15 in a cyclic fixed-bed reactor","authors":"Ailin Deng, Qiqi Ma, Yunxiang Hu, Xin Zhang, S. Yang, Nianhua Song, Wuji Sun, Xuejun Liu, Jianbing Ji","doi":"10.1515/ijcre-2023-0222","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0222","url":null,"abstract":"\u0000 Tributyl aconitate is a new type of alternative plasticizer to phthalates. Amberlyst-15 was used to catalyze the esterification of aconitic acid and n-butanol for the preparation of tributyl aconitate in a cyclic fixed-bed reactor. The influence of the reaction conditions on the conversion was investigated. The results showed that the conversion of aconitic acid increased significantly with the rise of temperature and catalyst loading. The reaction conditions were optimized as: temperature: 115 °C; initial mass ratio of AA and n-butanol: 1:4; catalyst loading: 25 %; reaction absolute pressure: 85 kPa; volume flow rate: 30 mL min−1. Thermodynamics and kinetics of the reaction was studied. The non-ideality of the reaction system was rectified using the UNIFAC group contribution method. The kinetic process was simulated using the pseudo-homogeneous (PH) model, Eley-Rideal (E-R) model, and Langmuir-Hinshelwood-Hougen-Watson (LHHW) model. The results revealed that the E-R model exhibited superior suitability in simulating the kinetic process.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"46 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141098352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

R dot approach for kinetic modelling of WGS over noble metals 用 R dot 方法建立贵金属上 WGS 的动力学模型

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-24 DOI: 10.1515/ijcre-2023-0231

Ravikiran Mandapaka

引用次数: 0

Retraction of: Computational fluid dynamic simulations to improve heat transfer in shell tube heat exchangers 撤回：通过计算流体力学模拟改善壳管式热交换器的传热性能

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-24 DOI: 10.1515/ijcre-2024-2001

Rahmad Syah, A. Bateni, Kamran Valizadeh, M. Elveny, Mehdi Shaeban Jahanian, D. Ramdan, A. Davarpanah

引用次数: 0

Design, characterization and performance evaluation of a laboratory-scale continuous reactor for sono-Fenton treatment of simulated wastewater 用于模拟废水声波芬顿处理的实验室规模连续反应器的设计、特征描述和性能评估

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-24 DOI: 10.1515/ijcre-2023-0238

M. Akram, Abhyuday Mallick, Debasish Sarkar, Sampa Chakrabarti

{"title":"Design, characterization and performance evaluation of a laboratory-scale continuous reactor for sono-Fenton treatment of simulated wastewater","authors":"M. Akram, Abhyuday Mallick, Debasish Sarkar, Sampa Chakrabarti","doi":"10.1515/ijcre-2023-0238","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0238","url":null,"abstract":"\u0000 A laboratory scale continuous flow stirred tank reactor (CFSTR) has been developed for ultrasound-assisted Fenton degradation of Rhodamine B dye in simulated wastewater and its performances have been studied in the present work. The sono-reactor was made of glass, 6 cm in diameter and 17.5 cm in height; fitted with a cooling water jacket. The volume was about 0.4 L and the flow rate of dye solution was 20 mL min−1. Ultrasound was provided with a 120 W probe-type sonicator. The hydrodynamic characteristics were studied by RTD studies and CFD analysis in COMSOL Multiphysics software. The CFD analysis showed the reactor to be behaving like a CSTR with bypassing leading to a short residence time. The optimum treatment conditions in this reactor for degrading Rhodamine B solution were determined using Response Surface Methodology. A model equation correlating the decolorization percentage with the initial dye concentration, H2O2 and Fe2+ dosage (Fenton’s reagent) was developed which can predict the decolorization with a high degree of accuracy. Under optimum conditions, the percent decolorization was 55 and the corresponding COD removal was 15 %. A continuous sono-Fenton reactor, if scaled up properly, can be useful for degradation of dark coloured refractory organics in wastewater where photo-Fenton reaction is ineffective.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"43 10","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Airlift bioreactors for bioremediation of water contaminated with hydrocarbons in agricultural regions 用于对农业区受碳氢化合物污染的水体进行生物修复的气举生物反应器

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2024-05-21 DOI: 10.1515/ijcre-2024-0009

E. J. Sandoval-Herazo, Israel Rodríguez-Torres, G. Espinosa-Reyes, M. Lizardi-Jiménez

引用次数: 0