Mahmoud M. El‐Halwagi
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View article: Decarbonizing methanol synthesis via low-carbon hydrogen: process simulation and techno-economic insights
Decarbonizing methanol synthesis via low-carbon hydrogen: process simulation and techno-economic insights Open
Methanol synthesis is one of the most hydrogen-intensive chemical processes, making its decarbonization a critical step toward climate-aligned chemical production. In this study, Aspen Plus® process simulation and techno-economic assessmen…
View article: Resilience Assessment and Sustainability Enhancement of Gas and CO2 Utilization via Carbon–Hydrogen–Oxygen Symbiosis Networks
Resilience Assessment and Sustainability Enhancement of Gas and CO2 Utilization via Carbon–Hydrogen–Oxygen Symbiosis Networks Open
Decarbonizing the industrial sector is essential to achieving net-zero targets and ensuring a sustainable future. Carbon–Hydrogen–Oxygen Symbiosis Networks (CHOSYN) are a set of interconnected hydrocarbon-processing plants that optimize th…
View article: Design of Process Systems for Flexibility and Resilience Using Multi-Parametric Programming
Design of Process Systems for Flexibility and Resilience Using Multi-Parametric Programming Open
Process systems are negatively impacted by manufacturing uncertainties, and increasingly by unknown-unknown disruptive events. To this effect, systems need to be designed with the inherent flexibility and resilience to overcome the impacts…
View article: Energy Storage: From Fundamental Principles to Industrial Applications
Energy Storage: From Fundamental Principles to Industrial Applications Open
The increasing global energy demand and the transition toward sustainable energy systems have highlighted the importance of energy storage technologies by ensuring efficiency, reliability, and decarbonization. This study reviews chemical a…
View article: Retrofitting Low Carbon Aviation Fuels Processes From Natural Gas to Renewables Energy‐Based Systems
Retrofitting Low Carbon Aviation Fuels Processes From Natural Gas to Renewables Energy‐Based Systems Open
The aviation sector's dependence on high‐energy‐density fuels presents a challenge for decarbonization. This study evaluates the economic and environmental feasibility of retrofitting a gas‐to‐liquid (GTL) plant for low carbon aviation fue…
View article: A novel methodology to determine the safe operating regime for an offshore wind‐integrated electrolysis system
A novel methodology to determine the safe operating regime for an offshore wind‐integrated electrolysis system Open
The offshore wind‐integrated hydrogen production system is a novel approach to producing green energy carriers and chemicals. Even with the significant environmental benefits of this approach, there are major questions and concerns regardi…
View article: Constraint Formulations for Bayesian Optimization of Process Simulations: General Approach and Application to Post-Combustion Carbon Capture
Constraint Formulations for Bayesian Optimization of Process Simulations: General Approach and Application to Post-Combustion Carbon Capture Open
Some of the most highly trusted and ubiquitous process simulators have solution methods that are incompatible with algorithms designed for equation-oriented optimization. The natively unconstrained Efficient Global Optimization (EGO) algor…
View article: Resilient-aware Design for Sustainable Energy Systems
Resilient-aware Design for Sustainable Energy Systems Open
To mitigate the effects of catastrophic failure while maintaining resource and production efficiencies, energy systems need to be designed for resilience and sustainability. Conventional approaches such as redundancies through backup proce…
View article: Integration of risk, flexibility, and resilience in the optimization of water–energy nexus
Integration of risk, flexibility, and resilience in the optimization of water–energy nexus Open
Co‐location of power plants and desalination systems allows for a reduction in operational expense through energy integration. Furthermore, augmenting fossil‐based power plants with solar energy provides a means of reducing the carbon foot…
View article: Solar and Wind Data Recognition: Fourier Regression for Robust Recovery
Solar and Wind Data Recognition: Fourier Regression for Robust Recovery Open
Accurate prediction of renewable energy output is essential for integrating sustainable energy sources into the grid, facilitating a transition towards a more resilient energy infrastructure. Novel applications of machine learning and arti…
View article: Decarbonizing the Gas-to-Liquid (GTL) Process Using an Advanced Reforming of Methane Process
Decarbonizing the Gas-to-Liquid (GTL) Process Using an Advanced Reforming of Methane Process Open
The gas-to-liquid (GTL) process is a promising technology for converting natural gas into synthetic fuels and chemicals. However, its high carbon dioxide (CO2) emissions present significant challenges. Methane reforming contributes up to 6…
View article: Evaluation of the Economic, Environmental, and Social Impact of the Valorization of Grape Pomace from the Wine Industry
Evaluation of the Economic, Environmental, and Social Impact of the Valorization of Grape Pomace from the Wine Industry Open
The increase in the world population has led to intensive food production systems that are generating increasing amounts of solid waste. In this work, the valorization of the most important waste generated during wine production, grape pom…
View article: Solar-Assisted Monetization of Municipal Solid Waste
Solar-Assisted Monetization of Municipal Solid Waste Open
Municipal solid waste (MSW) is a significant resource, especially for biomass-based monetization. In addition to its economic potential, it can also provide an effective pathway for decarbonization in the energy and chemical sectors. In th…
View article: Processes Intensification for Sustainability: Prospects and Opportunities
Processes Intensification for Sustainability: Prospects and Opportunities Open
[EN]Nowadays, any industrial process must not only respond to market requirements but also be sustainable. Process intensification (PI) offers promising opportunities toward enhancing the process performance while addressing sustainability…
View article: Progress in Inherently Safer Design for Chemical Processes
Progress in Inherently Safer Design for Chemical Processes Open
Traditionally, process design has been primarily driven by techno-economic criteria while safety is often considered after preliminary design decisions have already been made. Such an approach implies that most of the design’s degrees of f…
View article: Multilayer Approach for Product Portfolio Optimization: Waste to Added-Value Products
Multilayer Approach for Product Portfolio Optimization: Waste to Added-Value Products Open
A multistage multilayer systematic procedure has been developed for the selection of the optimal product portfolio from waste biomass as feedstock for systems involving water-energy-food nexus. It consists of a hybrid heuristic, metric-bas…
View article: A novel CO2 utilization technology for the synergistic co-production of multi-walled carbon nanotubes and syngas
A novel CO2 utilization technology for the synergistic co-production of multi-walled carbon nanotubes and syngas Open
Dry reforming of methane (DRM) is a well-known process in which CH 4 and CO 2 catalytically react to produce syngas. Solid carbon is a well-known byproduct of the DRM but is undesirable as it leads to catalyst deactivation. However, conver…
View article: Correction to “Synthesis and Sustainability Evaluation of a Lignocellulosic Multifeedstock Biorefinery Considering Technical Performance Indicators”
Correction to “Synthesis and Sustainability Evaluation of a Lignocellulosic Multifeedstock Biorefinery Considering Technical Performance Indicators” Open
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to "Synthesis and Sustainability Evaluation of a Lignocellulosic Multifeedstock Biorefinery Considering Technical Performance Ind…
View article: An Integrated Approach to the Design of Centralized and Decentralized Biorefineries with Environmental, Safety, and Economic Objectives
An Integrated Approach to the Design of Centralized and Decentralized Biorefineries with Environmental, Safety, and Economic Objectives Open
Biorefineries provide economic, environmental, and social benefits towards sustainable development. Because of the relatively small size of typical biorefineries compared to oil and gas processes, it is necessary to evaluate the options of…