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View article: Modelling Syngas Combustion from Biomass Gasification and Engine Applications: A Comprehensive Review
Modelling Syngas Combustion from Biomass Gasification and Engine Applications: A Comprehensive Review Open
Syngas, a renewable fuel primarily composed of hydrogen and carbon monoxide, is emerging as a viable alternative to conventional fossil fuels in internal combustion engines (ICEs). Obtained mainly through the gasification of biomass and or…
View article: Synergistic Valorization of Refuse-Derived Fuel and Animal Fat Waste Through Dry and Hydrothermal Co-Carbonization
Synergistic Valorization of Refuse-Derived Fuel and Animal Fat Waste Through Dry and Hydrothermal Co-Carbonization Open
The demand for clean energy to improve waste valorization and enhance resource utilization efficiency has been increasingly recognized in the last few years. In this context, the co-carbonization of different waste streams, aiming at solid…
View article: A GIS-Based Estimation of Bioenergy Potential from Cereal and Legume Straw Biomasses in Alentejo, Portugal
A GIS-Based Estimation of Bioenergy Potential from Cereal and Legume Straw Biomasses in Alentejo, Portugal Open
Portugal exhibits a large deficit in cereals with an import/export ratio of about 18%. Alentejo is a southern vast plain region, which is the largest cereal producer in the country, with about 80% of the total cereal area. The region also …
View article: The Potential Related to Microgeneration of Renewable Energy in Urban Spaces and Its Impact on Urban Planning
The Potential Related to Microgeneration of Renewable Energy in Urban Spaces and Its Impact on Urban Planning Open
This research aims to explore the potential of renewable energy sources in urban planning, focusing on microgeneration technologies, through a structured literature review. A systematic review was conducted using the PRISMA method, encompa…
View article: Carbonization of Refuse-Derived Fuel Pellets with Biomass Incorporation to Solid Fuel Production
Carbonization of Refuse-Derived Fuel Pellets with Biomass Incorporation to Solid Fuel Production Open
In this work, dry carbonization (DC) and hydrothermal carbonization (HTC) of refuse-derived fuel (RDF) pellets were conducted to evaluate the physical, chemical, and fuel properties of the produced chars. In the dry carbonization tests, bi…
View article: Renewable Hydrogen from Biomass: Technological Pathways and Economic Perspectives
Renewable Hydrogen from Biomass: Technological Pathways and Economic Perspectives Open
Hydrogen is undeniably one of the most promising options for producing energy with minimal environmental impact. However, current hydrogen production is still derived from carbon-intensive processes relying on fossil fuels. Biomass is a su…
View article: Waste-Derived Chars: A Comprehensive Review
Waste-Derived Chars: A Comprehensive Review Open
The production of heterogeneous solid waste, such as municipal solid waste (MSW), construction and demolition waste (CDW), and industrial solid waste (ISW), has increased dramatically in recent decades, and its management is one of today’s…
View article: Renewable Hydrogen From Biomass: Technological Pathways and Economic Perspectives
Renewable Hydrogen From Biomass: Technological Pathways and Economic Perspectives Open
Hydrogen is undoubtedly one of the most promising alternatives for generating energy with low environmental impact. However, most hydrogen produced today is derived from fossil fuels, which negatively impacts the environment. In this conte…
View article: Carbonization of Refuse-Derived Fuel Pellets with Biomass Incorporation to Solid Fuel Production
Carbonization of Refuse-Derived Fuel Pellets with Biomass Incorporation to Solid Fuel Production Open
In this work, dry and hydrothermal carbonization (DC and HTC) of RDF pellets were conducted to evaluate the physical, chemical, and fuel properties of the produced chars. In the dry carbonization tests, biomass sawdust was incorporated in …
View article: An Overview of the Thermochemical Valorization of Sewage Sludge: Principles and Current Challenges
An Overview of the Thermochemical Valorization of Sewage Sludge: Principles and Current Challenges Open
With the increase in the world population and economic activity, the production of sewage sludge has grown, and its management has become an environmental problem. The most traditional method of managing sewage sludge is to dispose of it i…
View article: Hydrogen from Waste Gasification
Hydrogen from Waste Gasification Open
Hydrogen is a versatile energy vector for a plethora of applications; nevertheless, its production from waste/residues is often overlooked. Gasification and subsequent conversion of the raw synthesis gas to hydrogen are an attractive alter…
View article: Dry and Hydrothermal Co-Carbonization of Mixed Refuse-Derived Fuel (RDF) for Solid Fuel Production
Dry and Hydrothermal Co-Carbonization of Mixed Refuse-Derived Fuel (RDF) for Solid Fuel Production Open
The present study aims to test several conditions of the thermochemical pretreatment of torrefaction and carbonization to improve the physical and combustible properties of the Portuguese RDF. Therefore, two different types of RDF were sub…
View article: Comparison of multilayer perceptron neural network architecture in photovoltaic plants fault classification
Comparison of multilayer perceptron neural network architecture in photovoltaic plants fault classification Open
The goal of this study is to assess the application of Multilayer Perceptron Artificial Neural Networks in fault classification within photovoltaic panels, focusing on key characteristics such as the number of neurons and layers, activatio…
View article: A Waste-to-Energy Technical Approach: Syngas–Biodiesel Blend for Power Generation
A Waste-to-Energy Technical Approach: Syngas–Biodiesel Blend for Power Generation Open
In this study, a technical analysis of synthesis gas (syngas) and biodiesel blend utilized in an internal combustion engine is presented. The experimental setup is composed of an engine workbench coupled with a downdraft gasifier which was…
View article: Techno-Economic Evaluation of Downdraft Fixed Bed Gasification of Almond Shell and Husk as a Process Step in Energy Production for Decentralized Solutions Applied in Biorefinery Systems
Techno-Economic Evaluation of Downdraft Fixed Bed Gasification of Almond Shell and Husk as a Process Step in Energy Production for Decentralized Solutions Applied in Biorefinery Systems Open
The objective of the present study was to carry out a technical study of the gasification of almond shells and husks at different temperatures and, subsequently, an economic analysis for the in situ installation of a decentralized unit to …
View article: Brief Overview of Refuse-Derived Fuel Production and Energetic Valorization: Applied Technology and Main Challenges
Brief Overview of Refuse-Derived Fuel Production and Energetic Valorization: Applied Technology and Main Challenges Open
A large part of municipal solid waste (MSW) still goes to landfills, representing an environmental concern. A circular economy approach can enable safe management of MSW while mitigating the increasing energy needs when waste is used as a …
View article: Costs of Gasification Technologies for Energy and Fuel Production: Overview, Analysis, and Numerical Estimation
Costs of Gasification Technologies for Energy and Fuel Production: Overview, Analysis, and Numerical Estimation Open
During recent years, gasification technology has gained a high potential and attractiveness to convert biomass and other solid wastes into a valuable syngas for energy production or synthesis of new biofuels. The implementation of real gas…
View article: Production, Characterization, and Activation of Biochars from a Mixture of Waste Insulation Electric Cables (WIEC) and Waste Lignocellulosic Biomass (WLB)
Production, Characterization, and Activation of Biochars from a Mixture of Waste Insulation Electric Cables (WIEC) and Waste Lignocellulosic Biomass (WLB) Open
Waste insulation electrical cables (WIEC) currently do not have an added value, due to their physical–chemical characteristics. Carbonization is known to enhance feedstock properties, particularly fuel and material properties; as such, thi…
View article: Properties and Uses of Biochars Incorporated into Mortars
Properties and Uses of Biochars Incorporated into Mortars Open
The construction industry is responsible for a large amount of CO2 emissions and an intensive energy consumption. Cement production is the third largest source of anthropogenic CO2 emissions and is responsible for about 1.8 Gt of CO2 emiss…
View article: Electricity and Hydrogen Generation from Food and Vegetable Wastes – Technical and Economic Analysis
Electricity and Hydrogen Generation from Food and Vegetable Wastes – Technical and Economic Analysis Open
The city of Guaratinguetá, Brazil, produces 104 tons of MSW daily, 45.3% of which is its organic fraction, and the rest is divided between recyclable material and waste without use. This study proposes the calculation of the biogas product…
View article: Pre-Feasibility Study of a Multi-Product Biorefinery for the Production of Essential Oils and Biomethane
Pre-Feasibility Study of a Multi-Product Biorefinery for the Production of Essential Oils and Biomethane Open
Rural areas can benefit from the development of biorefineries for the valorization of endogenous feedstocks. In this study, a pre-feasibility assessment of an integrated multi-product biorefinery to produce essential oils and biomethane is…
View article: Waste Gasification Technologies: A Brief Overview
Waste Gasification Technologies: A Brief Overview Open
This paper aims to briefly overview gasification technologies of biomass and heterogeneous wastes as a means for syngas production. For this purpose, an overview of the existing technologies, their main advantages, limitations, and costs, …
View article: Gasification of Solid Recovered Fuels with Variable Fractions of Polymeric Materials
Gasification of Solid Recovered Fuels with Variable Fractions of Polymeric Materials Open
Gasification is a promising thermochemical technology used to convert waste materials into energy with the introduction of low amounts of an oxidant agent, therefore producing an environmental impact that is lower when compared to incinera…
View article: Torrefaction Upgrading of Heterogenous Wastes Containing Cork and Chlorinated Polymers
Torrefaction Upgrading of Heterogenous Wastes Containing Cork and Chlorinated Polymers Open
Torrefaction of two mixed wastes composed of cork and chlorinated polymers was studied at temperatures from 200 to 350 °C, for residence times of 30 and 60 min. These wastes were recovered from sandwich panels with cork core, have differen…