Frontiers of Chemical Science and Engineering最新文献

{"title":"Granulation mechanism and CO2 capture performance of alkaline metal salt-promoted MgO sorbents","authors":"Jinbo Song,&nbsp;Jieying Jing,&nbsp;Jinpeng Zhang,&nbsp;Yufeng Xu,&nbsp;Wen-Ying Li","doi":"10.1007/s11705-025-2576-8","DOIUrl":"10.1007/s11705-025-2576-8","url":null,"abstract":"<div><p>Alkaline metal salt-promoted MgO sorbents are effective for CO₂ capture, but they face challenges with decreased CO₂ capture performance and powder elutriation in practical applications, arising due to the loss of pore structures and poor mechanical strength of alkaline metal salt-promoted MgO sorbent powder. Herein, granulation technology was employed to resolve the above problem. The optimized alkaline metal salt-promoted MgO sorbent pellets exhibited a CO₂ capture capacity of 11.46 mmol·g⁻¹ and a mechanical strength of 11.14 MPa. This mechanical strength was nearly three times greater than that of alkaline metal salt-promoted MgO sorbent pellets without granulation promoters. After 20 cycles, CO₂ capture capacity stabilized at 8.71 mmol·g⁻¹, while mechanical strength was maintained at 8.92 MPa. Through characterization, it was revealed that the pore structure generated by the pyrolysis of the granulation promoters notably increased the specific surface area, leading to high CO₂ capture capacity. Meanwhile, the strengthened mechanical strength of the alkaline metal salt-promoted MgO sorbent pellets was primarily due to the <i>in situ</i> formation of a <i>γ</i>-AlOOH sol-gel cluster skeleton. Thus, this study provides an effective technological pathway to enhance the performance of the alkaline metal salt-promoted MgO sorbent pellets for industrial applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 12","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160534","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":"Critical advances in separation and purification of 5-hydroxymethylfurfural","authors":"Yanxi Qi,&nbsp;Bingkun Chen,&nbsp;Haixin Guo","doi":"10.1007/s11705-025-2582-x","DOIUrl":"10.1007/s11705-025-2582-x","url":null,"abstract":"<div><p>5-Hydroxymethylfurfural (5-HMF) is a versatile platform chemical that can be derived from renewable biomass using homogeneous or heterogeneous acid catalysts. However, efficiently separating and purifying 5-HMF from reaction mixtures remains a critical challenge for its high-value conversion from renewable biomass. To address this challenge, various separation methods have been developed, including distillation, adsorption, liquid-liquid extraction, supercritical carbon dioxide extraction, and integrated separation processes. This review summarizes and discusses recent advancements in the separation and purification of 5-HMF from reaction solutions. It evaluates key parameters such as adsorption capacity, separation selectivity, recovery efficiency, and their influencing factors. The liquid-liquid extraction using biphasic solvents has proven to be a simple, cost-effective, and efficient approach. The ionic liquid extraction, deep eutectic solvent extraction, supercritical carbon dioxide extraction, and integrated separation technologies (e.g., liquid-liquid extraction combined with vacuum distillation, distillation integrated with adsorption) are discussed. This review also provides insight into the mechanisms of different separation methods, which may contribute to the development of new processes for the purification of 5-HMF. This review aims to provide a theoretical basis for the future large-scale, efficient, and economic production of high-purity 5-HMF.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160530","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":"Density functional theory study on the selective oxidation of ethylene glycol to glycolic acid over Ptn (n = 4–55) clusters","authors":"Shiping Wu,&nbsp;Yanhong Quan,&nbsp;Jun Ren","doi":"10.1007/s11705-025-2585-7","DOIUrl":"10.1007/s11705-025-2585-7","url":null,"abstract":"<div><p>The selective oxidation of ethylene glycol to glycolic acid on the Pt₄, Pt₁₃, Pt₃₈, and Pt₅₅ clusters was investigated by using density-functional theory calculations. The calculated results imply that glycolic acid is preferentially generated through the dehydrogenation of ethylene glycol by OH to form HOCH₂CH₂O on the Pt₄, Pt₁₃, and Pt₃₈ surfaces, but that this process occurs directly without OH participation on the Pt₅₅ surface. The observed effect likely arises from the addition of OH, which modulates the electron density in the O atom of ethylene glycol, thereby affecting the cleavage of the O–H bond. Furthermore, the glycolic acid formation on the Pt_<i>n</i> clusters is limited by the <i>β</i>–H elimination of HOCH₂CH₂O to HOCH₂CHO, which exhibits the lowest energy barrier on the Pt₁₃ surface. It is because the <i>d</i>-band center of the Pt₁₃ cluster is closer to the Fermi energy than that of other clusters, which then enhances the electronic density of Pt. This facilitates the adsorption of HOCH₂CH₂O at the Pt sites and the activation of the C–H bond in HOCH₂CH₂O and therefore results in superior catalytic performance. This paper offers theoretical insights into the influence of Pt size on the selective oxidation of ethylene glycol to glycolic acid.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160570","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":"Multilevel dispersion induced graphdiyne mixed-matrix membranes for ethanol recovery","authors":"Sen Li,&nbsp;Xiaoting Zhou,&nbsp;Tieyan Li,&nbsp;Yingzhou Lu,&nbsp;Chunxi Li,&nbsp;Hongwei Fan,&nbsp;Hong Meng","doi":"10.1007/s11705-025-2581-y","DOIUrl":"10.1007/s11705-025-2581-y","url":null,"abstract":"<div><p>Graphdiyne represents an emerging nanofiller of mixed matrix membranes for high-performance alcohol recovery by pervaporation due to its unique alkyne-rich and porous framework and hydrophobicity. However, such membranes often encounter a persistent challenge of nanofiller agglomeration within the polymer matrix, which diminishes the efficacy of graphdiyne during alcohol recovery. This study proposes a multilevel dispersion strategy that synergistically combines <i>in situ</i> confined growth, ultrasonication, atomization, and rotational shearing throughout membrane preparation to mitigate particle aggregation. The particle agglomeration scale in the polydimethylsiloxane matrix can be effectively reduced from 660 nm of triphenylamine-based graphdiyne to about 291 nm compared to the general stirring-casting method. The mixed matrix membrane loaded with 2.5 wt % triphenylamine-based graphdiyne demonstrated a permeate flux of 2.35 kg·m⁻²·h⁻¹ alongside a separation factor of 11.31 for a 5 wt % ethanol/water solution. Compared to the stirring-casting method, these performances represent enhancements of 41% in permeate flux and 80% in separation factor. Furthermore, a 96 h-continuous pervaporation test indicated the robust stability of the membrane, underscoring the potential for industrial alcohol recovery.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 12","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160533","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":"Modulating the secondary coordination sphere of the Cu site for boosting acetylene hydrochlorination","authors":"Dingqiang Feng,&nbsp;Linfeng Li,&nbsp;Yunsheng Dai,&nbsp;Wei Li,&nbsp;Jinli Zhang,&nbsp;Bao Wang,&nbsp;Jiangjiexing Wu","doi":"10.1007/s11705-025-2577-7","DOIUrl":"10.1007/s11705-025-2577-7","url":null,"abstract":"<div><p>Ligand modification of Cu catalysts has emerged as a promising strategy to enhance activity and stability in acetylene hydrochlorination. However, the limited availability of primary coordinating heteroatoms hinders precise engineering of the Cu active site microenvironment. Herein, a secondary coordination sphere modulation strategy was developed using various substituted hydrocarbon groups in the ligands. The local microenvironment around the Cu active sites was precisely tuned, leading to the Cu⁺ ratio of freshly prepared catalysts and reactive activity revealing a linear correlation, and the C₂H₂ adsorption energy exhibiting a distinct volcano plot correlation with catalytic activity. Among these catalysts, Cu-MMTB/AC exhibited the highest activity, achieving an acetylene conversion of 88.5% under the reaction conditions (T = 180 °C, gas hourly space velocity (GHSV) (C₂H₂) = 180 h⁻¹, and <i>V</i>(HCl): <i>V</i>(C₂H₂) = 1.2). Moreover, ^1#Cu₃-MMTB₁ exhibits advantages in both intermediate formation and HCl activation processes along the reaction pathway. This strategy offers a new avenue for designing high-performance Cu catalysts and promoting the use of mercury-free industrial catalysts.</p></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160531","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 review of experimental approaches, trends and opportunities in plasma-based gas conversion research","authors":"Sirui Li,&nbsp;Pranav Arun,&nbsp;Huub van den Bogaard,&nbsp;Thijs van Raak,&nbsp;Changjun Liu,&nbsp;Fausto Gallucci","doi":"10.1007/s11705-025-2567-9","DOIUrl":"10.1007/s11705-025-2567-9","url":null,"abstract":"<div><p>Plasma-based gas conversion has emerged as a sustainable and promising approach for chemical production, attracting increasing attention in recent years. Significant progress has been achieved in areas such as nitrogen fixation, CO₂ conversion, methane activation, and others, driven by the contributions of researchers from diverse disciplines. Given that most research in this field is experimental, the methodologies employed play a pivotal role and demand careful consideration. However, due to the interdisciplinary nature of the field and variations in research objectives, available resources, and laboratory standards, experimental set-ups and approaches often differ significantly. Moreover, critical details regarding operational techniques and key methodologies are sometimes overlooked. This paper provides a comprehensive review of the methodologies and experimental approaches used in the study of plasma-based gas conversion for chemical production. It first examines experimental systems, including plasma reactor design, plasma-catalyst integration, and set-up configuration. Subsequently, operational schemes, conditions, and analytical procedures are discussed, with examples showcasing state-of-the-art advancements. Finally, discussion on emerging research trends and potential opportunities are presented, aiming to inspire further advancements and broaden the scope of this growing field.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 10","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11705-025-2567-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing cyclone separator performance via computational fluid dynamics and intelligent optimization: synergizing design of experiments, machine learning, and multi-objective genetic algorithms","authors":"Jianhao Guo,&nbsp;Yunpeng Zhao,&nbsp;Nan Liu,&nbsp;Chunmeng Zhu,&nbsp;Xiaogang Shi,&nbsp;Xingying Lan","doi":"10.1007/s11705-025-2579-5","DOIUrl":"10.1007/s11705-025-2579-5","url":null,"abstract":"<div><p>Cyclone separators are extensively utilized for the efficient separation of solid particles from fluid flows, where their operational effectiveness is intrinsically linked to the equilibrium between pressure drop and collection efficiency. However, in extreme industrial environments, such as fluidized catalytic cracking processes, severe wall erosion poses a significant challenge that compromises equipment lifespan. The present study aims to identify an optimal trade-off among separation efficiency, energy consumption, and erosion rate through the optimization of geometric ratios in cyclone separators. By adjusting specific key dimensions, erosion can be mitigated, extending the separator’s lifespan in harsh conditions. The relationships between six geometric dimension ratios and inlet gas velocity with respect to performance indicators are systematically investigated using design of experiments and computational fluid dynamics simulations. To develop a robust performance prediction model that accounts for multiple influencing factors, an auto machine learning approach is employed, incorporating ensemble learning strategies and automatic hyperparameter optimization techniques, which demonstrate superior performance compared to traditional artificial neural network methodologies. Furthermore, pareto-optimal solutions for maximizing separation efficiency while minimizing pressure drop and erosion rate are derived using the nondominated sorting genetic algorithm II, which is well-suited for addressing complex nonlinear optimization problems. The results show that the optimized cyclone separator design enhances separation efficiency from 76.19% to 87.95%, reduces pressure drop from 1698 to 1433 Pa, and decreases the erosion rate from 8.06 × 10⁻⁵ to 7.32 × 10⁻⁵ kg·s⁻¹, outperforming the conventional Stairmand design.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167825","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":"Ni nanoparticles with high thermal stability for methane dry reforming","authors":"Meng Han,&nbsp;Dan Guo,&nbsp;Xuening Zhang,&nbsp;Yitong Yao,&nbsp;Haozhe Zhang,&nbsp;Yifei Lu,&nbsp;Zelong Fu,&nbsp;Jing Lv,&nbsp;Yong Wang,&nbsp;Joe Yeang Cheah,&nbsp;Shengping Wang,&nbsp;Xinbin Ma","doi":"10.1007/s11705-025-2580-z","DOIUrl":"10.1007/s11705-025-2580-z","url":null,"abstract":"<div><p>The upgrading of underutilized methane in shale gas with anthropogenic CO₂ can produce the value-added syngas via dry reforming. Nickel-based catalysts, due to their efficiency and cost-effectiveness, have received widespread attention. However, Ni-catalyzed dry reforming of methane is usually subjected to sintering or coking-induced instability. To address these issues, a series of Al₂O₃-supported nickel nanoparticle catalysts with uniform sizes are synthesized by varying the calcination temperatures and applied in methane dry reforming (DRM). Ni/Al₂O₃-700 °C catalyst behaves better catalytic performance compared to the other catalysts, which can be attributed to its higher metal dispersion and stronger metal-support interaction. In addition, the abundant moderate-strength basic sites and optimal Al_IV/Al_VI ratio can promote the adsorption and activation of CO₂ and suppress the deep cracking of CH₄ for Ni/Al₂O₃-700 °C catalyst, respectively, causing the enhancement of anti-coking performance. Furthermore, combining CH₄-temperature programmed surface reaction and <i>in situ</i> Fourier transform infrared spectroscopy demonstrates that the presence of CO₂ can promote the activation of CH₄ for Ni/Al₂O₃-700 °C catalyst, which is rate-determining step for DRM system. These findings provide valuable theoretical guidance for the rational design of Ni-based catalysts with enhanced catalytic performance.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 8","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167820","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":"Integrating the first- and second-generation bioethanol co-production from wheat and wheat straw process: techno-economic feasibility and life cycle assessment","authors":"Xingchen Yang,&nbsp;Zhenli Yan,&nbsp;Chaojun Du,&nbsp;Zigao Zhao,&nbsp;Yujie Chen,&nbsp;Haoran Wu,&nbsp;Huanhuan Zhang,&nbsp;Chun Chang","doi":"10.1007/s11705-025-2573-y","DOIUrl":"10.1007/s11705-025-2573-y","url":null,"abstract":"<div><p>This study evaluates the techno-economic feasibility and environmental implications of integrating first-generation (1G) and second-generation (2G) bioethanol co-production using wheat grain and wheat straw (WS) as feedstocks. Three pretreatment methods—formic acid, sodium chlorite, and alkaline hydrogen peroxide (AHP)—were investigated, with AHP identified as the most industrially viable due to its mild conditions, high cellulose retention (73%), and reduced wastewater generation. The results indicated that the integrated 1G + 2G process exhibited high bioethanol production capacity (241300 t·y⁻¹) and mass yield (22.74%) under the conditions of 1200 t·d⁻¹ of wheat and 2000 t·d⁻¹ of WS. Furthermore, an energy recovery potential of 60.51%, alongside a 60.65% reduction in CO₂ emissions could be achieved. 1G + 2G process has a competitive minimum ethanol selling price (MESP: $431·t⁻¹), high internal rate of return (37%), and return on investment (76%). Life cycle assessment highlighted terrestrial ecotoxicity potential (35%) and freshwater ecotoxicity potential (32%) as dominant environmental impacts, driven by nitrogen fertilizer use and fuel combustion efficiency. Sensitivity analysis showed feedstock costs and ethanol pricing as critical economic drivers, while reducing nitrogen fertilizer application and optimizing combustion efficiency were key to mitigating environmental burdens. This work provides actionable insights for advancing integrated biorefineries with enhanced yield, economic viability, and sustainability.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 7","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165507","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":"Exploring the immunological impact of particles across dimensions in antigen and drug delivery systems","authors":"Hua Yue,&nbsp;Shaoyu Guan","doi":"10.1007/s11705-025-2565-y","DOIUrl":"10.1007/s11705-025-2565-y","url":null,"abstract":"<div><p>Particle formulation engineering stands as a focal point of research and a critical trajectory within the chemical industry. In response to the challenges associated with antigen/drug delivery, our research group has proposed a suite of strategies centered on micro/nanoparticle platforms. This review integrates our investigations into the applications of particles across various dimensions in biomedical delivery systems. Specifically, it delineates the mechanisms by which particles augment vaccine-induced immune responses, notably through antigen cross-presentation, and the pivotal roles they play in facilitating drug-mediated targeting of cancer cells via confined mass transfer. This review also encompasses recent advancements in particle formulations, offering prospective insights into the utilization of chemical engineering principles in the design of nextgeneration biomedical delivery systems.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":571,"journal":{"name":"Frontiers of Chemical Science and Engineering","volume":"19 7","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165509","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}