An article by Juan Selva Sarzo, published in Revista Recupera.
Efficient waste management has become a strategic pillar in advancing toward more sustainable, circular, and energy-independent industrial models. In this context, gasification is emerging as a key technological solution capable of transforming refuse-derived fuels (RDF) and biostabilized waste into clean energy and high-value-added resources.
RDF and biostabilized waste: underutilized energy resources
RDF and biostabilized waste are abundant, locally sourced, and cost-effective waste streams generated daily by mechanical-biological treatment (MBT) facilities and waste valorization operators. Despite their significant energy potential, their use has traditionally been constrained by regulatory, technical, and environmental barriers, especially in comparison with conventional solutions such as incineration.
Today, advances in gasification technology are creating a new route for their valorization, enabling lower emissions, reduced operational costs, and a significant decrease in landfill disposal.
Gasification: a clean and efficient solution
Gasification transforms RDF and biostabilized waste into a clean and homogeneous fuel gas (Syngas) through an advanced and highly controlled thermochemical process. Compared to conventional incineration, this approach offers several significant advantages:
• Lower atmospheric emissions, enabled by a highly controlled process that eliminates direct combustion.
• Enhanced energy efficiency and energy resilience, enabling superior performance in industrial heat applications.
• Lower operational costs combined with efficient integration into existing industrial infrastructure.
Additionally, gasification offers a modular and scalable solution that can be deployed in both greenfield projects and existing industrial infrastructures.
Biodrying: transforming biostabilized waste into a 100% biogenic fuel
Biostabilized waste generated by MBT facilities can be upgraded through biodrying, a process that reduces moisture and stabilizes the material, turning it into a 100% biogenic fuel.
As a result, it becomes an ideal feedstock for gasification processes, due to the following advantages:
• Increases the efficiency and stability of the gasification process.
• Minimizes fuel preparation costs prior to gasification.
• Maximizes the renewable share of energy production, supporting the decarbonization of industrial end users.
Industrial applications for high thermal demand
One of the key advantages of gasification is its direct integration into end-user operations, especially in industries with significant thermal energy requirements, such as:
• Cement plants
• Chemical industry
• Ceramics
• Paper and cardboard
• Food processing and industrial manufacturing
Generating Syngas directly at the consumption site helps reduce energy losses, stabilize energy costs, and secure a local, renewable, and predictable energy supply.
Furthermore, the technology can be efficiently integrated for the production of:
• Thermal energy (steam, hot air, thermal fluids)
• Renewable hydrogen
• Synthetic fuels, such as methanol or SAF (Sustainable Aviation Fuel)
All of this is made possible using waste streams that would otherwise undergo less efficient valorization processes or end up in landfill.
Reducing landfill disposal and advancing the circular economy
Energy valorization through gasification contributes significantly to European landfill reduction targets by:
• Reduces the volume of waste sent to landfill.
• Extends the lifespan of existing infrastructure.
• Reduces diffuse methane emissions associated with landfill disposal.
• Unlocks the energy value of locally available resources that are currently underutilized.
Three Pathways to Industrial Decarbonization: SynTK, SynTH & SynTX
WtEnergy Advanced Solutions has developed three gasification technology platforms to address a wide range of industrial decarbonization and energy valorization needs:
• SynTK: Designed for Syngas generation in kilns and energy-intensive industrial thermal processes.
• SynTH: Focused on the production of steam, hot air, and thermal energy through clean Syngas utilization.
• SynTX: Dedicated to the production of green hydrogen and advanced synthetic fuels, including methanol and SAF.
These solutions enable the replacement of fossil fuels, the reduction of CO₂ emissions, and the conversion of locally available waste into valuable energy for industry.
Learn more about WtEnergy Advanced Solutions
WtEnergy Advanced Solutions is a leading innovator in the energy valorization of waste through advanced gasification technologies.
Founded in 2017 by Andrés Ponce, following more than two decades of experience in gasification, biofuels, and clean energy generation, the company has grown into a European reference in the development and deployment of sustainable energy solutions for industry.
In 2019, Antonio Crous joined as co-founder, contributing strategic vision and commercial scaling expertise that accelerated the expansion of WtEnergy’s technology across key industrial sectors. Today, the company brings together a multidisciplinary team of engineers and specialists with extensive experience in gasification projects, combining unique know-how and highly differentiated technical expertise within the industry.
WtEnergy Advanced Solutions transforms environmental and energy challenges into scalable decarbonization solutions, enabling circular economy models and delivering clean, reliable, and cost-competitive energy for energy-intensive industries. Through its innovative approach, the company is positioning itself at the forefront of the waste-to-energy revolution and helping shape a more sustainable industrial future.
To learn more about WtEnergy Advanced Solutions and our industrial decarbonization technologies, please visit www.wte-as.com or contact Juan Selva Sarzo, Commercial Director: info@wte-as.com | jselva@wte-as.com
