Reaction Chemistry & Engineering最新文献

Selective transfer hydrogenation of furfural under continuous flow conditions promoted by the recoverable homogeneous Shvo's catalyst† 可回收均相Shvo催化剂†促进连续流动条件下糠醛的选择性转移加氢

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-05-13 DOI: 10.1039/D5RE00176E

Giulia Brufani, Maitê Campos, Chiara Lenzi, Luís Adriano Santos do Nascimento, Emilia Paone, Andrea Piazzi, Rita Mazzoni, Luigi Vaccaro and Francesco Mauriello

引用次数: 0

A modular, reusable biocatalytic flow system for UDP-GlcNAc production† 用于生产UDP-GlcNAc的模块化、可重复使用的生物催化流程系统。

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-05-09 DOI: 10.1039/D5RE00127G

Tom L. Roberts, Jonathan P. Dolan, Gavin J. Miller, Marcelo A. D. Lima and Sebastian C. Cosgrove

引用次数: 0

Photocatalytic evolution of nitrous oxide from nitric monoxide over Pt-loaded titanium dioxide under UV irradiation† 紫外光照射下负载pt的二氧化钛上氧化一氮的光催化演化

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-05-07 DOI: 10.1039/D5RE00119F

Ryo Asayama, Masanori Takemoto, Arata Suzuki, Ryuichi Watanabe, Fuminao Kishimoto, Kenta Iyoki, Tatsuya Okubo and Toru Wakihara

引用次数: 0

Expression of Concern: Immobilized tetrakis(triphenylphosphine)palladium(0) for Suzuki–Miyaura coupling reactions under flow conditions 关注表达：流动条件下固定化四（三苯基膦）钯(0)用于Suzuki-Miyaura偶联反应

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-04-24 DOI: 10.1039/D5RE90015H

G. Valerie Ramaotsoa, Ian Strydom, Jenny-Lee Panayides and Darren Riley

引用次数: 0

Continuous-flow synthesis of special Au–Ag bimetallic nanoparticles and their application for SERS detection of thiram in cherry juice† 特殊金银双金属纳米颗粒的连续流合成及其在樱桃汁中硫胺SERS检测中的应用

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-04-08 DOI: 10.1039/D5RE00063G

Li Sun, Mingjian Jiang, Yuan Zhi, Hua Zhang, Binlin Dou, Yuejin Shan, Jian Chen and Xiangyang Xu

引用次数: 0

A proposed industrial scale-up of circular bisphenol-A (BPA) production 提出了循环双酚A （BPA）生产的工业规模

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-04-03 DOI: 10.1039/D5RE00047E

Aswin Nair, Megan Novak, Jonathan Ochoa, Dyron Powell, Josh Ramsey and Logan Stadtmueller

{"title":"A proposed industrial scale-up of circular bisphenol-A (BPA) production","authors":"Aswin Nair, Megan Novak, Jonathan Ochoa, Dyron Powell, Josh Ramsey and Logan Stadtmueller","doi":"10.1039/D5RE00047E","DOIUrl":"https://doi.org/10.1039/D5RE00047E","url":null,"abstract":"To meet the evolving sustainability goals of the modern-day chemical industry, there is a demand for novel chemical processes that minimize environmental impact while also maximizing profitability. This paper proposes a novel commercial solution for producing bisphenol-A (BPA) from the advanced recycling of polycarbonate waste. Current BPA production methods have major environmental and safety concerns from the use of benzene, high temperatures and pressures, and strong acids, and the proposed novel method addresses all these issues. This advanced recycling process utilizes a base-catalyzed methanolysis reaction with a methanol/toluene solvent mixture to produce BPA and dimethyl carbonate (DMC), a sustainable fuel additive both at 99.99 wt% purity. A prototype process was simulated in Aspen Plus®, and a preliminary process flow diagram was developed. With a target production capacity of 200 000 metric tons of BPA per annum, the major processing equipment is one packed-bed reactor, two crystallizers, and three distillation columns. All required heat exchangers and pumps were integrated into the simulation and can be adjusted based on product specifications and processing capacity. Analysis of green metrics for the novel process demonstrated that the process minimizes waste from a mass standpoint, and a rigorous economic analysis showed that the process is highly profitable in several varied scenarios.","PeriodicalId":101,"journal":{"name":"Reaction Chemistry & Engineering","volume":" 6","pages":" 1417-1428"},"PeriodicalIF":3.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/re/d5re00047e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconfigurable photoflow reactor for enhanced optimization of the aerobic oxidative coupling of 2-phenylbenzoic acid† 用于优化2-苯基苯甲酸†有氧氧化偶联的可重构光流反应器

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-03-25 DOI: 10.1039/D4RE00635F

Florian Ehrlich-Sommer, Tobias Friedl, Christian Koller and Malek Y. S. Ibrahim

{"title":"Reconfigurable photoflow reactor for enhanced optimization of the aerobic oxidative coupling of 2-phenylbenzoic acid†","authors":"Florian Ehrlich-Sommer, Tobias Friedl, Christian Koller and Malek Y. S. Ibrahim","doi":"10.1039/D4RE00635F","DOIUrl":"https://doi.org/10.1039/D4RE00635F","url":null,"abstract":"We tested eight configurations of a flat plate photoflow reactor, each with distinct photonic and mixing properties. The model reaction involved the photocatalytic oxidative cross-coupling of 2-arylbenzoic acid to form 6H-benzo[c]chromen-6-one, using air as an oxidant and visible light. Reactor designs included wide rectangular channels with varying depths and inclinations, two types of static mixers, and three serpentine-like channels with variable depths. All configurations outperformed a stirred batch photoreactor, with the 2 mm deep serpentine channel delivering the highest rate acceleration, reducing reaction time from 6 hours to less than 1.25 hours and increasing the apparent rate constant by over fourfold. The rate constant could not be correlated with the reactor illuminated area, but could be correlated with the inverse product of flow cross-section and light penetration depth. This correlation aids in optimizing similar reactions, with the optimum range influenced by light intensity and photocatalyst concentration, while the reconfigurable kit enables efficient empirical optimization without prior reaction kinetics knowledge.","PeriodicalId":101,"journal":{"name":"Reaction Chemistry & Engineering","volume":" 5","pages":" 959-964"},"PeriodicalIF":3.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143888509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of powders and coatings for relating catalytic activity and structure of Pt in emission control catalysis† 粉末和涂层对Pt在排放控制催化中的相关活性和结构的作用

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-03-24 DOI: 10.1039/D4RE00262H

Samuel Struzek, Tim Delrieux, Florian Maurer, Danielle Santos Gonçalves, Sarina-Lena Heck, Linda Klag, Joachim Czechowsky, Anna Zimina and Jan-Dierk Grunwaldt

{"title":"Role of powders and coatings for relating catalytic activity and structure of Pt in emission control catalysis†","authors":"Samuel Struzek, Tim Delrieux, Florian Maurer, Danielle Santos Gonçalves, Sarina-Lena Heck, Linda Klag, Joachim Czechowsky, Anna Zimina and Jan-Dierk Grunwaldt","doi":"10.1039/D4RE00262H","DOIUrl":"https://doi.org/10.1039/D4RE00262H","url":null,"abstract":"Packed powder beds and coatings are two relevant forms of catalysts, applied in industrial heterogeneous catalysis and multiple fundamental studies including operando spectroscopy. Both types have their individual advantages and disadvantages in regard to the performance and characterisation causing some complexity in the resulting flow patterns, possible temperature inhomogeneities in the reactor and the dynamic evolution of chemical state of the noble metal during the reaction along the catalytic bed. The well-known CO oxidation reaction over Pt/Al2O3 catalysts was used in this study to uncover the influence of the gas phase compositions and the temperature on the evolution of the electronic structure of Pt for powdered and coated catalysts at comparable length scales. Advanced operando investigations were used to demonstrate the influence of spatial gradients in the gas phase for washcoats in contrast to packed powder beds. Additionally, transient gradients in the chemical state of Pt, which occurred more pronounced for packed powder beds than for coated monoliths were followed and traced back to heat and mass transfer effects. Finally, the catalytic activity can be linked to the temperature distributions for both types of samples. These findings will be valuable for planning and evaluating future combinations of spectroscopic and catalytic experiments on industrially relevant systems.","PeriodicalId":101,"journal":{"name":"Reaction Chemistry & Engineering","volume":" 6","pages":" 1233-1243"},"PeriodicalIF":3.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/re/d4re00262h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective photocatalytic oxidation of (hetero)aryl alcohols to aldehydes and ketones by visible-light-absorbing three-dimensional Ni/ZnO nanoparticles† 可见光吸收三维Ni/ZnO纳米颗粒†选择性光催化氧化（杂）芳醇生成醛和酮

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-03-21 DOI: 10.1039/D5RE00035A

Zahra Bazyar, Fatemeh Zeraatpisheh and Nastaran Moalemiyan

引用次数: 0

Amphiphobic surface-active ionic liquids as dynamic micellar phase-transfer catalysts for biphasic epoxidations† 两疏表面活性离子液体作为两相环氧化的胶束相转移催化剂

IF 3.4 3区化学

Reaction Chemistry & Engineering Pub Date : 2025-03-20 DOI: 10.1039/D4RE00616J

Johannes Luibl, Markus Hegelmann, Stephan Schwarzinger, Wolfgang Korth, Mirza Cokoja and Andreas Jess

{"title":"Amphiphobic surface-active ionic liquids as dynamic micellar phase-transfer catalysts for biphasic epoxidations†","authors":"Johannes Luibl, Markus Hegelmann, Stephan Schwarzinger, Wolfgang Korth, Mirza Cokoja and Andreas Jess","doi":"10.1039/D4RE00616J","DOIUrl":"https://doi.org/10.1039/D4RE00616J","url":null,"abstract":"We report on the synthesis of amphiphobic surface-active ionic liquids (FSAILs) containing fluorinated anions. The solubility and aggregation behavior of the FSAILs was determined in both aqueous hydrogen peroxide and in organic media. The FSAILs were applied as temperature-controlled micellar and phase transfer epoxidation catalysts by mixing the FSAIL with sodium tungstate in aqueous H2O2 solution. The epoxidation of cis-cyclooctene with aqueous hydrogen peroxide was studied in terms of catalyst activity, phase behavior and recycling. To deepen insights recycability and phase transfer, especially of the catalytically active species, characteristics of the micellar catalysis were investigated in detail over different reaction time periods. High-resolution 1H-qNMR reveals a quantitative phase transfer of the FSAILs into the organic phase, while the additive remains in the aqueous phase. Additionally, the present tungsten species also remain fully in the aqueous phase as shown by ICP-MS analysis.","PeriodicalId":101,"journal":{"name":"Reaction Chemistry & Engineering","volume":" 6","pages":" 1350-1358"},"PeriodicalIF":3.4,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/re/d4re00616j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0