Chinese Journal of Chemical Engineering最新文献

{"title":"Synergistic Ni–In alloying and ceria–zirconia defect engineering for the selective hydrogenative removal of acetylene and oxygen","authors":"Yujie Mao,&nbsp;Xiaofei Lu,&nbsp;Qiling Tang,&nbsp;Weixin Guan,&nbsp;Xian Suo,&nbsp;Lifeng Yang,&nbsp;Xili Cui,&nbsp;Anyun Zhang,&nbsp;Huabin Xing","doi":"10.1016/j.cjche.2026.08.018","DOIUrl":"10.1016/j.cjche.2026.08.018","url":null,"abstract":"<div><div>Selective hydrogenation is essential for removing trace impurities during light-hydrocarbon recovery from refinery dry gas, yet developing non-precious-metal catalysts with high activity, selectivity, and long-term stability remains challenging. Herein, we report a highly selective and durable catalyst developed through the synergistic integration of Ni–In alloying and defect engineering of ceria–zirconia, enabling the deep and selective removal of acetylene (C₂H₂) and oxygen (O₂) from olefin-rich streams. At 210 °C and ambient pressure, the optimized Ni-In(1:0.5)/Ce_0.25Zr_0.75O₂ catalyst achieved <em>ca.</em> 93% C₂H₂ conversion with 85% C₂H₄ selectivity under a high space velocity of 28800 ml·g⁻¹·h⁻¹. More importantly, it enabled simultaneous deep removal of C₂H₂ and O₂, lowering the residual concentrations of both impurities to below 1 ppm at 240 °C. Characterization results reveal that In promotes the formation of Ni-In alloy phases, which geometrically isolate contiguous Ni ensembles and electronically enrich Ni sites through electron transfer from In to Ni, thereby weakening C₂H₄ adsorption and suppressing over-hydrogenation. Meanwhile, the oxygen-vacancy-rich ceria-zirconia support facilitates hydrogen dissociation and spillover, further enhancing hydrogenation activity. The synergy between Ni-In alloying and support defect engineering enables deep impurities removal with high olefin preservation, offering a practical strategy for designing stable non-precious-metal catalysts for olefin purification.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 158-166"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148938522","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":"Catalytic methane decomposition for Co-production of hydrogen and carbon nanotubes over a layered double hydroxide derived NiFe/Al2O3 catalyst in a fluidized-bed reactor","authors":"Yu Wang,&nbsp;Yuguang Jin,&nbsp;Hao-Fan Wang,&nbsp;Hongjuan Wang,&nbsp;Yonghai Cao,&nbsp;Yanhui Yang,&nbsp;Hao Yu","doi":"10.1016/j.cjche.2026.08.010","DOIUrl":"10.1016/j.cjche.2026.08.010","url":null,"abstract":"<div><div>Catalytic methane decomposition (CMD) offers a promising route for CO₂-free hydrogen production alongside valuable carbon nanotubes (CNTs). Here, we present a high-performance Ni_<em>x</em>Fe_<em>y</em>Al₂₅ catalyst derived from a layered double hydroxide (LDH) precursor, and its application in a fluidized-bed reactor. The incorporation of Fe effectively refined the active metal crystallites through the formation of a NiFe₂O₄ spinel phase, suppressed metal sintering, and improved catalyst reducibility. The catalyst exhibited excellent fluidization behavior, benefiting from the favorable physical properties inherited from the LDH precursor. Under optimized conditions in the fluidized bed (580 °C, 400 ml·min⁻¹ CH₄, and 1 g of catalyst), the Ni₅₀Fe₂₅Al₂₅ formulation achieved a high hydrogen production rate of 28 L·h⁻¹, maintained methane conversion above 59% for 4 h, and co-produced CNTs with a purity of 94.71%. This work highlights the synergistic advantages of integrating LDH-derived bimetallic catalysts with fluidized-bed technology, offering an effective strategy for scalable turquoise hydrogen production coupled with high-value solid carbon.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 60-68"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148938442","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 of dopamine polymer-modified Ni foam packing: Coating process, mass transfer, and DFT calculation studies","authors":"Hong-Da Zhang,&nbsp;Shu-Ting Bao,&nbsp;Shi-Chao Su,&nbsp;Ming-Fei Dai,&nbsp;Zhi-Ping Zhao,&nbsp;Le Sang","doi":"10.1016/j.cjche.2026.08.014","DOIUrl":"10.1016/j.cjche.2026.08.014","url":null,"abstract":"<div><div>The coating stability of dopamine-polymer-modified Ni foam is important for its application in micropacked bed reactors. In this study, hydrophilically modified polydopamine (PDA)/Ni foam and polylevodopa (PLD)/Ni foam, and hydrophobically modified F₉-PDA/Ni foam and F₉-PLD/Ni foam were prepared. The hydrophobically modified Ni foam packings had a gas-liquid mass transfer enhancement performance in micropacked bed reactors. Based on the gas-liquid flushing experiment results, the stability of PDA/Ni foam and F₉-PDA/Ni foam was better than that of PLD/Ni foam and F₉-PLD/Ni foam. PFHS can interact with PDA and PLD to produce hydrogen bonds and chemical reactions. The adsorption of PFHS on PLD was more stable, and the chemical reaction was more spontaneous. The experiment and DFT calculation confirmed the binding strength of PDA/PLD and Ni foam acts as a key controlling factor for the overall stability of F₉-PDA/PLD-Ni foam. As a result, the adhesion of PDA on the Ni foam was significantly better than that of PLD.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 95-107"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148938521","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":"Multiphase lattice Boltzmann simulations for droplet-based microfluidics: A review of methodology and applications","authors":"Hao Wang,&nbsp;Shiteng Wang,&nbsp;Yi Cheng","doi":"10.1016/j.cjche.2026.08.013","DOIUrl":"10.1016/j.cjche.2026.08.013","url":null,"abstract":"<div><div>Over the past two decades, the lattice Boltzmann method (LBM) has become an attractive and versatile mesoscale approach for modelling complex microflows and showed a rapid expansion of multiphase/multicomponent lattice Boltzmann (LB) models to the applications in droplet-based microfluidics. This review provides a focused overview of the LBM framework of simulations on droplet behaviors in microchannels. Significant developments including these LB models with basic and advanced collision schemes, as well as representative applications to study droplet formation, breakup, mixing and reactions are reviewed. The discussed systems cover from conventional single-phase droplet to complex multiphase droplets, high-viscosity and non-Newtonian microflows. These developments demonstrate the capability of multiphase LBM to resolve complex interfacial dynamics and internal flow structures that are central to the mechanistic analysis and rational design in droplet-based microfluidics. Then, we conclude by discussing current limitations and future opportunities of LB models in gas-liquid microdispersion, heat transfer issues and the integration with artificial intelligence.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 321-339"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148996962","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":"One-step direct conversion of lignocellulosic biomass into methane via pressurized hydrogasification in a fluidized bed reactor","authors":"Shanshan Wang,&nbsp;Jun Feng,&nbsp;Mingde Yang,&nbsp;Yulong Wu","doi":"10.1016/j.cjche.2026.06.020","DOIUrl":"10.1016/j.cjche.2026.06.020","url":null,"abstract":"<div><div>The direct one-step conversion of lignocellulosic biomass into methane represents a critical frontier in carbon-neutral energy development. Herein, we report the high-performance hydrogasification of pinewood in a pressurized fluidized bed reactor, achieving a significant CH₄ yield of 22.4% (mass). Utilizing response surface methodology, a synergistic operating regime was identified at 770–795 °C and 3.2–3.4 MPa, where the interplay of thermally accelerated kinetics and thermodynamic equilibrium drives the efficient methanation of carbon oxides and the hydrocracking of tar species. Mechanistic insights from comparative thermogravimetric analysis (TG-DTG) reveal that the reactive H₂ atmosphere facilitates a fundamental shift from conventional pyrolysis to a hydropyrolysis regime. Specifically, hydrogen promotes the preferential cleavage of robust macromolecular linkages, such as C–O–C and C<img>O, effectively lowering the activation energy and shifting the maximum decomposition rate. These results demonstrate that the precise modulation of the hydrogen-biomass interface can bypass traditional gasification limitations, offering a robust and scalable framework for the valorization of lignocellulosic resources into high-value synthetic natural gas.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 226-235"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148948094","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":"Recent advances in printing technologies for conjugated polymer-based electronic devices","authors":"Yejin Shim,&nbsp;Xiao Huan,&nbsp;Ying Diao","doi":"10.1016/j.cjche.2026.07.015","DOIUrl":"10.1016/j.cjche.2026.07.015","url":null,"abstract":"<div><div>In recent decades, the development of stretchable, lightweight, solution-processable organic semiconductors that provide intelligent, dynamic soft digital interfaces for human body and other living systems has reshaped the paradigm for next-generation electronics. In this review, we specifically focus on connecting the printing techniques for conjugated polymer patterning, the fluid dynamic mechanisms governing 2D ink deposition, with the device functionalities enabled by the resulting film microstructure. In particular, we provide a tutorial of chemical engineering relevant concepts such as dimensionless numbers underpinning printing processes.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 143-157"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148938447","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":"Recent advances in Joule heating-driven chemical reactions and reactor design strategies","authors":"Chang Gao,&nbsp;Zhongyang Wang,&nbsp;Hao Lv,&nbsp;Zhongze Li,&nbsp;Yihang Liu,&nbsp;Chaojie Cui,&nbsp;Mingyu Ma,&nbsp;Zhili Liu,&nbsp;Jie Zhang,&nbsp;Zhiyi Wang,&nbsp;Weizhong Qian","doi":"10.1016/j.cjche.2026.08.008","DOIUrl":"10.1016/j.cjche.2026.08.008","url":null,"abstract":"<div><div>As a promising technology, Joule heating directly converts electrical energy into heat on conductive supports, catalysts, or reactor components. This review examined Joule heating chemical reactions and reactor design. It summarized the principles of heat generation and transfer, clarified the relationship between the apparent thermal-response parameter and reactor structure. Then it compared Joule heating with induction, microwave, plasma, electrochemical and laser-assisted photothermal processes. Representative reactor applications in materials synthesis, low-carbon energy conversion and environmental remediation were discussed to reveal how ultrafast thermal transients, catalyst stability and transport limitations govern reaction performance. Finally, it highlighted the need to establish clearer criteria for techno-economic analysis, life-cycle assessment and scale-up validation, aiming to support the practical development of scalable and low-carbon Joule heating reactors.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 269-280"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148948093","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":"Synergistic silica and fluorosilane surface modification of poly(4-methyl-1-pentene) hollow fiber membranes with improved hemocompatibility for membrane oxygenation","authors":"Linlin Zhang,&nbsp;Yanfen Chen,&nbsp;Fangyu Wu,&nbsp;Aoxing Feng,&nbsp;Jiaqi Zhang,&nbsp;Tianyu Zhang,&nbsp;Xuenan Yang,&nbsp;Sisi Li,&nbsp;Qilin Lu,&nbsp;Jingjing Hou,&nbsp;Yuanhui Tang,&nbsp;Lixin Yu,&nbsp;Xiaolin Wang,&nbsp;Yakai Lin","doi":"10.1016/j.cjche.2026.08.009","DOIUrl":"10.1016/j.cjche.2026.08.009","url":null,"abstract":"<div><div>Plasma leakage and thrombosis remain critical challenges limiting the long-term performance of poly(4-methyl-1-pentene) (PMP) hollow fiber membranes (HFMs) in extracorporeal membrane oxygenation (ECMO). In this work, a hierarchical hydrophobic modification strategy was developed to construct a stable anti-wetting interface on PMP HFMs. Surface hydroxyl groups were first generated <em>via</em> Fenton-induced oxidation, followed by interfacial coupling with trimesoyl chloride (TMC). Subsequently, SiO₂ nanoparticles were grafted to create a micro/nano-structured rough surface, and further modified with 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (17-FAS) to reduce surface energy. Under the optimized conditions (120 min Fenton pre-treatment, 60 min TMC reaction, and 0.1% (mass) SiO₂ nanoparticles), the modified PMP–SiO₂/17-FAS membrane exhibited a high N₂ flux of 54.1 ml·cm⁻²·min⁻¹·MPa⁻¹, while the plasma leakage resistance time was significantly prolonged from 5910 to 8775 min. In addition, bovine serum albumin adsorption was reduced by approximately 50%, indicating enhanced antifouling performance. Coagulation tests further revealed a selective prolongation of activated partial thromboplastin time, while prothrombin time, thrombin time, and international normalized ratio remained nearly unchanged, suggesting suppressed contact-induced coagulation activation without disturbing normal coagulation pathways. The enhanced performance could be attributed to the synergistic effect of micro/nano-structured roughness and the fluorinated low-surface-energy layer, which stabilizes a non-wetting interfacial state and reduces protein-surface interactions. This work provides a feasible strategy for simultaneously improving plasma leakage resistance and hemocompatibility of PMP-based oxygenation membranes.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 167-177"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148948057","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":"Colored passive daytime radiative cooling paints: From fundamentals to applications","authors":"Mengxin Lei,&nbsp;Siming Zhao,&nbsp;Qixuan Cai,&nbsp;Zhenyu Guo,&nbsp;Zhuojing Zhao,&nbsp;Shuang Tao,&nbsp;Rufan Zhang","doi":"10.1016/j.cjche.2026.05.025","DOIUrl":"10.1016/j.cjche.2026.05.025","url":null,"abstract":"<div><div>Passive daytime radiative cooling (PDRC) offers a sustainable approach to reducing the energy consumption and carbon emissions associated with cooling demands. Among various PDRC materials, paints are particularly attractive for real-world applications owing to their simple processing and compatibility with various substrates. However, most current PDRC paints are restricted to dull white or silver colors due to the requirement of high solar reflectance, limiting their use in aesthetically demanding scenarios such as building envelopes, vehicles, and solar photovoltaic modules. To address this limitation, colored passive daytime radiative cooling (CPDRC) paints have been developed to balance aesthetic appeal and cooling performance while maintaining practicality. Achieving this balance relies on rational spectral design, namely selective narrow-band absorption in the visible spectrum combined with high reflectivity in other parts of the solar spectrum. Building on this rationale, the fundamentals of CPDRC are firstly introduced and then design strategies tailored for paint systems are summarized, including material selection and structural optimization across different coloration mechanisms (chemical color, structural color, and photoluminescent color). Furthermore, solutions to specific practical requirements are discussed, focusing on the unique challenges and opportunities introduced by coloration. Finally, an outlook on the future development of CPDRC paints is offered.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 340-352"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148996963","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: Advances in optimization and regulation of microbial community during wastewater treatment in biofilm reactors","authors":"Wenjie Lai,&nbsp;Zhuang Wang,&nbsp;Shaojuan Luo,&nbsp;Yuanyuan Shao,&nbsp;Jesse Zhu","doi":"10.1016/j.cjche.2026.08.002","DOIUrl":"10.1016/j.cjche.2026.08.002","url":null,"abstract":"<div><div>Biofilm reactors are extensively employed in wastewater treatment due to their capacity for high biomass retention, support of diverse metabolic pathways, and robust resistance to environmental fluctuations. The performance of these systems critically depends on the biofilm-associated microbial communities, whose structure and function are shaped by biofilm architecture, microenvironmental gradients, and operational conditions. This review delves into the intricate relationships among microbial community composition, biofilm structure, and reactor performance, with a particular focus on strategies for regulating microbial communities in wastewater biofilm reactors. Firstly, we elucidate the effects of biofilm stratification and thickness on oxygen and substrate diffusion, redox partitioning, and the spatial distribution of functional groups. Subsequently, operational factors such as biofilm thickness, substrate properties, carrier characteristics and microenvironmental conditions are evaluated regarding their impact on microbial community distribution and pollutant removal efficiency. Furthermore, strategies for regulating microbial community structure through bioaugmentation in current biofilm systems are discussed. Although recent studies have significantly enhanced our understanding of the relationship between microbial community structure and wastewater treatment process performance, effectively leveraging microbial information to optimize the community structure for long-term, stable and efficient operation of wastewater treatment systems remains a major challenge. This review provides a mechanistic framework for microbial community optimization in next-generation wastewater biofilm reactors.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"97 ","pages":"Pages 178-193"},"PeriodicalIF":3.5,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148948058","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}