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Reaction Equilibria in the Hydrogen Loading and Release of the LOHC System Benzyltoluene/Perhydro Benzyltoluene
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-02-21 DOI: 10.1002/ceat.12002
Barbara Bong, Dr. Wassja A. Kopp, Thomas Nevolianis, Dr. Chalachew Mebrahtu, Prof. Dr. Kai Leonhard, Prof. Dr. Regina Palkovits
{"title":"Reaction Equilibria in the Hydrogen Loading and Release of the LOHC System Benzyltoluene/Perhydro Benzyltoluene","authors":"Barbara Bong,&nbsp;Dr. Wassja A. Kopp,&nbsp;Thomas Nevolianis,&nbsp;Dr. Chalachew Mebrahtu,&nbsp;Prof. Dr. Kai Leonhard,&nbsp;Prof. Dr. Regina Palkovits","doi":"10.1002/ceat.12002","DOIUrl":"https://doi.org/10.1002/ceat.12002","url":null,"abstract":"<p>Liquid organic hydrogen carriers (LOHCs) can store and transport hydrogen by chemical bonding. Benzyltoluene (H0-BT) is an attractive LOHC that can take up 12 H per carrier molecule. The chemical equilibrium favors hydrogenation at lower temperatures and higher pressures. In this work, we study hydrogenation kinetics at 125–200 °C and 0.3–30 bar H<sub>2</sub>. We perform ab initio calculations of all isomers of H0-BT and its (partially) hydrogenated forms to compute chemical equilibrium compositions. Despite hydrogenation being exothermic, full hydrogenation is thermodynamically possible almost up to the boiling temperature of the LOHC. Based on the obtained results, the tradeoff between the degree of hydrogenation and reducing the operating temperature is discussed.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.12002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overview Contents: Chem. Eng. Technol. 2/2025
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-02-18 DOI: 10.1002/ceat.2025470203
{"title":"Overview Contents: Chem. Eng. Technol. 2/2025","authors":"","doi":"10.1002/ceat.2025470203","DOIUrl":"https://doi.org/10.1002/ceat.2025470203","url":null,"abstract":"","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.2025470203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Editorial Board: Chem. Eng. Technol. 2/2025
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-02-18 DOI: 10.1002/ceat.2025470202
{"title":"Editorial Board: Chem. Eng. Technol. 2/2025","authors":"","doi":"10.1002/ceat.2025470202","DOIUrl":"https://doi.org/10.1002/ceat.2025470202","url":null,"abstract":"","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.2025470202","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cover Picture: Chem. Eng. Technol. 2/2025
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-02-18 DOI: 10.1002/ceat.2025470201
{"title":"Cover Picture: Chem. Eng. Technol. 2/2025","authors":"","doi":"10.1002/ceat.2025470201","DOIUrl":"https://doi.org/10.1002/ceat.2025470201","url":null,"abstract":"<p>© leungchopan@AdobeStock\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.2025470201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of the Lyapunov Exponent of Chemical Reactors From One Measurement Series
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-02-03 DOI: 10.1002/ceat.12001
Marek Berezowski
{"title":"Determination of the Lyapunov Exponent of Chemical Reactors From One Measurement Series","authors":"Marek Berezowski","doi":"10.1002/ceat.12001","DOIUrl":"https://doi.org/10.1002/ceat.12001","url":null,"abstract":"<p>This paper presents a method for determining the Lyapunov exponent without knowing the mathematical model of the object being studied and based on a single measurement series. This method allows for effective analysis of dynamic systems with a high degree of complexity. The studies were carried out on a model of coupled tubular chemical reactors described by four partial differential equations.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698856","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
Numerical Study on the Intensification of 3D Fluidized Bed Flue Gas Desulfurization Process by Multi-Jet Structure 多喷嘴结构强化三维流化床烟气脱硫工艺的数值研究
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-01-23 DOI: 10.1002/ceat.202400247
Huimin Yang, Shuai Wang, Shengxiao Wu, Jiao Jin, Feng Wu
{"title":"Numerical Study on the Intensification of 3D Fluidized Bed Flue Gas Desulfurization Process by Multi-Jet Structure","authors":"Huimin Yang,&nbsp;Shuai Wang,&nbsp;Shengxiao Wu,&nbsp;Jiao Jin,&nbsp;Feng Wu","doi":"10.1002/ceat.202400247","DOIUrl":"https://doi.org/10.1002/ceat.202400247","url":null,"abstract":"<p>There are problems such as short residence time, high particle packing density, and insufficient interphase contact in traditional fluidized beds (FBs), which greatly reduce the efficiency of the reactor. Based on this issue, this article simulates and analyzes the flow field characteristics in a 3D FB with different inlet angles (45°, 90°, 102.5°). The results show that in an FB with an inlet angle of 90°, the radial distribution of particles is uniform, and the best interphase mixing effect is achieved. On the basis of the traditional FB, a 3D multi-jet FB (MJFB) structure was designed to study the semi-dry flue gas desulfurization process. The results show that the multi-jet structure enhances the turbulence of gas and the radial pulsation of gas–liquid–solid three-phase, improving the phenomenon of uneven radial distribution of solid particles. In addition, the heat transfer coefficient between the phases has been improved. Compared with FB, the moisture content of MJFB outlet flue gas increased by 33.69 %, and the multi-jet structure reduced the sulfur content of outlet flue gas, which helps to improve desulfurization efficiency.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 2","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431428","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
Enhanced Carbon Dioxide Capture: Adsorption and Physicochemical Properties of SBA-15 Mesoporous Silica
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-01-23 DOI: 10.1002/ceat.202300576
Shalini Mahendran, Assoc. Prof. Dr. Noorfatimah Yahaya, Prof. Dr. Bassim H. Hameed, Prof. Dr. Dai Viet N. Vo, Dr. Abdelkader Ouakouak, Prof. Dr. Norikazu Nishiyama, Assoc. Prof. Dr. Azam Taufik Mohd Din
{"title":"Enhanced Carbon Dioxide Capture: Adsorption and Physicochemical Properties of SBA-15 Mesoporous Silica","authors":"Shalini Mahendran,&nbsp;Assoc. Prof. Dr. Noorfatimah Yahaya,&nbsp;Prof. Dr. Bassim H. Hameed,&nbsp;Prof. Dr. Dai Viet N. Vo,&nbsp;Dr. Abdelkader Ouakouak,&nbsp;Prof. Dr. Norikazu Nishiyama,&nbsp;Assoc. Prof. Dr. Azam Taufik Mohd Din","doi":"10.1002/ceat.202300576","DOIUrl":"https://doi.org/10.1002/ceat.202300576","url":null,"abstract":"<p>Global warming is widely recognized as one of humanity's most urgent challenges, making CO<sub>2</sub> capture from the environment crucial to mitigating problems associated with climate change. In this study, ordered mesoporous silica SBA-15 was synthesized using the sol–gel process with Pluronic P123, a nonionic surfactant, and tetraethyl orthosilicate as the silica source, with hydrochloric acid serving as the catalyst. The results indicated that the CO<sub>2</sub> adsorption capacity of SBA-15 was improved with higher CO<sub>2</sub> feed concentration but decreased with increasing flowrate, temperature, and adsorbent loading. The Avrami model provided the best fit for the experimental kinetic data. The Thomas and Yoon–Nelson models were successful in predicting the CO<sub>2</sub> adsorption performance of SBA-15 in the fixed-bed column system. The synthesized SBA-15 demonstrated its significant potential as a cost-effective CO<sub>2</sub> adsorbent by maintaining a high adsorption capacity, even after multiple regeneration cycles.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698823","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
Influence of Phosphorus Poisoning of Cu/SSZ-13 Zeolite Catalysts on the SCR Performance
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-01-22 DOI: 10.1002/ceat.202400124
Bin Guan, Junyan Chen, Zhongqi Zhuang, Xuehan Hu, Chenyu Zhu, Zeren Ma, Sikai Zhao, Jiangfeng Guo, Yuheng Yuan, Hongtao Dang, Kaiyou Shu, Kuangyi Shi, Yuan Li, Chao Yi, Wenbo Zeng, Chengze Xu, Zhihao Wei, Yang He, Zhen Huang
{"title":"Influence of Phosphorus Poisoning of Cu/SSZ-13 Zeolite Catalysts on the SCR Performance","authors":"Bin Guan,&nbsp;Junyan Chen,&nbsp;Zhongqi Zhuang,&nbsp;Xuehan Hu,&nbsp;Chenyu Zhu,&nbsp;Zeren Ma,&nbsp;Sikai Zhao,&nbsp;Jiangfeng Guo,&nbsp;Yuheng Yuan,&nbsp;Hongtao Dang,&nbsp;Kaiyou Shu,&nbsp;Kuangyi Shi,&nbsp;Yuan Li,&nbsp;Chao Yi,&nbsp;Wenbo Zeng,&nbsp;Chengze Xu,&nbsp;Zhihao Wei,&nbsp;Yang He,&nbsp;Zhen Huang","doi":"10.1002/ceat.202400124","DOIUrl":"https://doi.org/10.1002/ceat.202400124","url":null,"abstract":"<p>Herein, the influence of phosphorus poisoning on the catalytic performance of Cu/SSZ-13 zeolite catalysts for NO<i><sub>x</sub></i> emission decrease was studied. We conducted a detailed analysis of catalyst activity and N₂ selectivity in both fresh and P-poisoned states, employing a range of advanced physicochemical characterization methods and in situ analyses. Our findings reveal a dual effect of phosphorus addition: Although it decreases the free Cu<sup>2+</sup> species and specific surface area, leading to diminished SCR activity at low temperatures, it simultaneously reduces CuO<i><sub>x</sub></i> content, inhibiting nonselective NH<sub>3</sub> oxidation at high temperatures and ultimately enhancing SCR activity under those conditions. These insights highlight the complex role of phosphorus in moderating catalyst behavior.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698932","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
Polyethylene Functionalized with Imidazolium and Pyridinium Moieties through Radiation-Induced Grafting for Alkaline Solid Polymer Electrolyte Membranes 通过辐射诱导接枝使咪唑和吡啶分子功能化的聚乙烯用于碱性固体聚合物电解质膜
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-01-17 DOI: 10.1002/ceat.202400279
Bharath Govind, Sunita Rattan, Prachi Singhal, Bruno Ameduri, Ankit Tyagi, Arindam Modak
{"title":"Polyethylene Functionalized with Imidazolium and Pyridinium Moieties through Radiation-Induced Grafting for Alkaline Solid Polymer Electrolyte Membranes","authors":"Bharath Govind,&nbsp;Sunita Rattan,&nbsp;Prachi Singhal,&nbsp;Bruno Ameduri,&nbsp;Ankit Tyagi,&nbsp;Arindam Modak","doi":"10.1002/ceat.202400279","DOIUrl":"https://doi.org/10.1002/ceat.202400279","url":null,"abstract":"<p>Hydrocarbon-based polymer electrolytes hold great promise for practical electrochemical device deployment but suffer from limitations such as ionic conductivity, alkaline stability, and hydrophobicity. This work reports a new membrane, LLDPE-g-1VIm/4VP, prepared by radiation grafting a binary mixture of 1-vinyl imidazole and 4-vinylpyridine onto linear low-density polyethylene. Short branches in LLDPE are hypothesized to regulate water uptake, thus improving dimensional stability. Under optimized conditions, the membrane exhibits a relatively high ionic conductivity of 39.86 mS cm<sup>−1</sup> at 70 °C, good mechanical strength, improved dimensional stability, and moderate alkaline stability even after 240 h at 60 °C under harsh conditions. Preliminary evaluations demonstrate their potential as solid polymer electrolytes for electrochemical energy applications, including alkaline anion exchange membrane fuel cells.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698692","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
Cover Picture: Chem. Eng. Technol. 1/2025
IF 1.8 4区 工程技术
Chemical Engineering & Technology Pub Date : 2025-01-15 DOI: 10.1002/ceat.202570101
{"title":"Cover Picture: Chem. Eng. Technol. 1/2025","authors":"","doi":"10.1002/ceat.202570101","DOIUrl":"https://doi.org/10.1002/ceat.202570101","url":null,"abstract":"<p>© hit1912@AdobeStock\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"48 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.202570101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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