{"title":"Impact of sonochemistry on synthesis and physicochemical properties of heterogeneous catalysts for gaseous environmental abatement","authors":"Hamed Kalawoun, Muriel Chaghouri, Jean-Marc Lévêque, Christophe Poupin, Cédric Gennequin, François Delattre","doi":"10.1515/revce-2025-0050","DOIUrl":"https://doi.org/10.1515/revce-2025-0050","url":null,"abstract":"The phenomenon of acoustic cavitation (the formation, oscillation, growth, and implosive collapse of tiny bubbles filled with dissolved gases and liquid vapor) generated by the irradiation of a liquid medium with ultrasound has established itself as an important tool in various branches of chemistry. The use of ultrasonic irradiation in chemical processes is known as “sonochemistry.” Among the applications of sonochemistry, the involvement of ultrasound in materials synthesis can provide a fast, straightforward method for preparing heterogeneous catalysts compared to conventional methods, thanks to the chemical and physical effects of acoustic cavitation (excited species, shockwaves, microjets, sonoluminescence). The catalytic processes involved in the transformation of greenhouse gases are attracting greater attention for their role in addressing the major environmental problem of global warming. The application of ultrasonic irradiation results in catalysts with enhanced structural, textural, and morphological properties, including specific surface area, particle size distribution, and dispersion of the active phase on the support. Hence, ultrasonic-assisted synthesis of catalysts yields materials with better activity and stability than those obtained by classical preparation methods, which is particularly important for the development of heterogeneous catalysis.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149241217","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":"Advanced desulfurization of fuel oil: integrating electromagnetic and hybrid technologies for sustainable processing","authors":"Ehsan Nikmanesh, Reza Azin, Shahriar Osfouri, Erfan Mohammadian","doi":"10.1515/revce-2025-0053","DOIUrl":"https://doi.org/10.1515/revce-2025-0053","url":null,"abstract":"High sulfur content in fuel oil drives SOx emissions and equipment corrosion, necessitating advanced desulfurization to meet IMO 2020 (0.5 wt%) and USEPA (10–15 ppm) standards. This review critically evaluates six methods – hydrodesulfurization (HDS), oxidative (ODS), adsorptive (ADS), extractive (EDS), biodesulfurization (BDS), and electromagnetic desulfurization (EMDS) – focusing on EMDS–ODS–ADS hybrids for heavy fuels. EMDS uses high-frequency magnetic fields and ferromagnetic nanoparticles for up to 85 % sulfur removal under mild conditions (25–250 °C, 1–5 bar). Hybrids excel in lab-scale tests, yet ODS drops from 100 % (model fuels) to 58.54 % (heavy oil), revealing matrix effects (25–40 % loss). No continuous EMDS-hybrid pilots exist for real heavy crudes. EMDS challenges include nanoparticle aggregation (3–5 cycles), field energy demands, and costs, requiring techno-economic validation. Quantitative analysis of oxidant stoichiometry ( <jats:italic>r</jats:italic> <jats:sub>ox</jats:sub> = 1.0–3.0), energy-normalized metrics, stability, and biotoxicity shows HDS–ODS as near-term industrials, EMDS-hybrids precommercial. Future roadmap prioritizes recyclable EMDS catalysts, heavy-fuel pilots (1 bbl/d, 18–36 months), and HDS life-cycle comparison – without real-feedstock data, laboratory claims systematically overestimate industrial viability.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"32 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149226078","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}
Xiaoshan Liu, Wentao Zhou, Jinlin Yang, Shaojian Ma, Dingzheng Wang
{"title":"The prerequisite for efficient utilization of red mud: a review of alkali component removal technologies","authors":"Xiaoshan Liu, Wentao Zhou, Jinlin Yang, Shaojian Ma, Dingzheng Wang","doi":"10.1515/revce-2026-0017","DOIUrl":"https://doi.org/10.1515/revce-2026-0017","url":null,"abstract":"The high alkalinity and fine particle size of red mud, coupled with its complex symbiosis, can result in land salinization, as well as water and air pollution and the risk of dam failure. When stockpiled in the open air, it poses a potential threat to human health and safety. To mitigate the adverse effects of red mud, efficacious dealkalization technologies must be developed and implemented to reduce its alkalinity and improve its utilization as a resource. This article reviews traditional and emerging methods for alkali removal, including water washing, lime treatment, acid treatment, salt substitution, and industrial waste liquid neutralization; meanwhile, new methods such as microbial method, membrane sodium removal technology, calcium slag method, calcification carbonation method, and microwave treatment method are introduced. The paper summarizes and compares the advantages and disadvantages of these technologies, highlighting that the future challenge lies in achieving the industrial application of red mud alkali removal technology that balances economy, environmental protection, and efficiency. It also indicates that future development should focus on efficiently recovering strategic metals (such as iron, aluminum, titanium, scandium) from red mud while removing the alkali, ultimately realizing the utilization and reduction of red mud.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"467 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149140466","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":"Patent review on revolutionary electrochemical CaCO 3 conversion for cement manufacturing","authors":"Muniba Ayub, Farihahusnah Hussin, Mohamed Kheireddine Aroua, Mohamed Saafi","doi":"10.1515/revce-2025-0084","DOIUrl":"https://doi.org/10.1515/revce-2025-0084","url":null,"abstract":"Sustainable development has become a necessity in conventional cement production to reduce environmental impact. Global demand needs to reduce greenhouse gas (GHG) emissions. The transition to green cement manufacturing plays a key role in achieving net-zero carbon dioxide (CO <jats:sub>2</jats:sub> ) emissions and carbon-neutral concrete by 2050. This patent review highlights the importance and potential of green cement manufacturing through an electrochemical process, converting calcium carbonate (CaCO <jats:sub>3</jats:sub> ) into calcium hydroxide Ca(OH) <jats:sub>2</jats:sub> to produce ordinary Portland cement. This study reveals the entire patent landscape in green cement production and electrochemical green cement production. It highlights and describes the notable patents and their methodology. In addition, this review assesses the innovation of electrochemical technology in cement manufacturing and its potential and feasibility. A roadmap with efficient and effective polices and a framework can enhance the production of green cement. It can be expected that incorporation of electrochemical technology for calcium hydroxide production, when paired with renewable resources, cannot only reduce the overall emission and carbon footprint of cement products but also contribute toward achieving sustainable development goals, mitigate climate change, and regulate the market trend toward more sustainable products. It has been proven that interdisciplinary collaboration is indeed a necessity to overcome the technical and regulatory barriers.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"35 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149123654","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":"Frontmatter","authors":"","doi":"10.1515/revce-2026-frontmatter7","DOIUrl":"https://doi.org/10.1515/revce-2026-frontmatter7","url":null,"abstract":"","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"10 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149084609","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":"Photocatalytic nanomaterials for cationic dye detoxification from industrial effluents: principles, emerging trends, and engineering strategies","authors":"S. Ahamed Roshan, Nachimuthu Venkatesh, Sivaramalakshmi Sivaramakrishnan, Gokul Pratheep Nagaiah, K. Nawin Kumar, Taranya Selvam, Shaik Ashmath, Chao Liu, Shaik Gouse Peera, Govindhasamy Murugadoss","doi":"10.1515/revce-2026-0009","DOIUrl":"https://doi.org/10.1515/revce-2026-0009","url":null,"abstract":"Industrial discharge of dye-containing effluents into aquatic environments poses severe ecological and human health risks because of their toxicity, persistence, and potential carcinogenicity. Among different dye classes, cationic dyes are particularly difficult to eliminate due to their high solubility, chemical stability, and strong electrostatic interactions in aqueous media. Photocatalysis has emerged as an efficient and sustainable approach for degrading toxic organic pollutants under light irradiation. This review comprehensively discusses the classification of cationic dyes and recent advances in photocatalytic wastewater treatment technologies. Special emphasis is placed on visible-light-active photocatalysts, including heterojunction nanocomposites, metal and nonmetal doped semiconductors, and bio-inspired materials, which exhibit enhanced light absorption, improved charge separation, and superior photocatalytic stability. The review further highlights the influence of operational parameters and integrated treatment strategies on degradation efficiency. In addition, critical challenges related to catalyst recovery, long-term stability, cost-effectiveness, and practical applicability in real wastewater systems are discussed, together with future research perspectives for sustainable environmental remediation. Mechanistic pathways involving reactive oxygen species generation and electron–hole separation are also summarized to explain enhanced photocatalytic degradation performance under visible light irradiation.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"13 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149019954","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}
Sherif Alabi, Sagir Adamu, Yahya Gambo, Abdallah A. Al-Shammari, Mohammad M. Hossain
{"title":"Advances in dry reforming of methane: thermodynamics, reaction mechanisms, kinetics, catalyst design, and future prospects","authors":"Sherif Alabi, Sagir Adamu, Yahya Gambo, Abdallah A. Al-Shammari, Mohammad M. Hossain","doi":"10.1515/revce-2025-0083","DOIUrl":"https://doi.org/10.1515/revce-2025-0083","url":null,"abstract":"The utilization of CO <jats:sub>2</jats:sub> and CH <jats:sub>4</jats:sub> through dry reforming of methane (DRM) offers a promising pathway for syngas production while mitigating greenhouse gas emissions. However, its practical application is hindered by rapid catalyst deactivation due to coke formation, metal sintering, and instability under high-temperature conditions. This review critically examines recent advances in DRM catalyst design, focusing on the interplay between reaction thermodynamics, kinetics, and catalyst architecture. Ni-based catalysts, bimetallic systems, and promoted supports are discussed in terms of their roles in enhancing CO <jats:sub>2</jats:sub> activation, oxygen mobility, and resistance to deactivation. Advanced synthesis techniques, including atomic layer deposition, flame spray pyrolysis, and plasma-assisted methods, are highlighted for their ability to control metal dispersion and metal–support interactions. Special emphasis is placed on core–shell structures, where optimized shell composition and porosity enable improved stability by regulating sintering and carbon formation pathways. Overall, this review provides an integrated framework linking fundamental reaction constraints with catalyst design strategies, offering insights for the development of robust and scalable DRM catalysts.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"24 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890214","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":"Biomass to liquids via fast pyrolysis and upgrading the products: a review on chemical reaction engineering aspects","authors":"Saeed Sahebdelfar, Maryam Takht Ravanchi","doi":"10.1515/revce-2025-0069","DOIUrl":"https://doi.org/10.1515/revce-2025-0069","url":null,"abstract":"The utilization of biomass resources for producing valuable chemicals and drop-in fuels via biomass to liquid (BTL) processes has attracted much interest as alternative to today’s petroleum economy. However, biomass-derived liquids by thermochemical processes are not suitable for fuel application using available infrastructures. The undesirable characteristics of pyrolysis bio-oils originate from their high oxygen levels that should be eliminated or reduced. Among different upgrading strategies, thermocatalytic approach is considered as a promising processing for converting bio-oils into renewable carbon-neutral fuels. This includes reactions such as catalytic cracking, hydrodeoxygenation, and steam reforming similar to the mature technologies that are being used in refining and petrochemical industries. However, the high levels of oxygen containing compounds in bio-oil compared to crude oil and rapid catalyst deactivation avoid direct use of commercial catalysts and processes. Nevertheless, potential use of bio-oil as a co-feed in refineries has received attention for economic reasons. Due to the complex nature of real bio-oil, most of catalyst screening research was performed with model compounds. This article reviews the principles and current status of research and development on conversion of bio-oil to added-values chemicals and fuels.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"8 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148836276","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":"Frontmatter","authors":"","doi":"10.1515/revce-2026-frontmatter6","DOIUrl":"https://doi.org/10.1515/revce-2026-frontmatter6","url":null,"abstract":"","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"43 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148612584","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":"Emerging green technologies for cashew nutshell liquid (CNSL) extraction from cashew nutshell: a review","authors":"Sanjeev Kumar Suppala, Sanjay Krishna, Sanjeev Yadav","doi":"10.1515/revce-2025-0065","DOIUrl":"https://doi.org/10.1515/revce-2025-0065","url":null,"abstract":"Cashew nutshell liquid (CNSL), a renewable byproduct of the cashew industry, represents a versatile phenolic feedstock for sustainable chemical manufacturing. Its composition and downstream applications are inherently governed by the extraction strategy, establishing a crucial product–process relationship. Mild, non-thermal techniques preserve natural CNSL rich in anacardic acid, renowned for its biological activity, whereas high-temperature methods yield technical CNSL dominated by cardanol, an essential monomer for advanced polymer systems. This review critically evaluates emerging and green extraction technologies, including supercritical fluid extraction (SFE), subcritical water extraction (SWE), microwave- and ultrasound-assisted extraction (MAE, UAE), pulsed electric field (PEF) pretreatment, and novel sustainable routes such as enzyme-assisted extraction (EAE), deep eutectic solvent (DES), and polyol-induced extraction (PIE). The comparative assessment emphasizes process efficiency, yield, energy intensity, scalability, and environmental compatibility. The optimal extraction approach depends on the target compound, balancing the preservation of thermolabile anacardic acid with efficient cardanol recovery. Future directions highlight the integration of non-thermal pretreatments with selective green solvents within a circular biorefinery framework to enhance economic viability, minimize carbon intensity, and advance CNSL valorization toward next-generation sustainable materials.","PeriodicalId":54485,"journal":{"name":"Reviews in Chemical Engineering","volume":"37 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148432513","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}