Research

Six registered research lines grouped into three programmes. Each has an objective, open questions and verifiable results.

L1Conversion and valorisation of residual biomass

Thermodynamics and kinetics of the thermochemical conversion of residual biomass

Understand and quantify the thermal decomposition of residual biomass and lignocellulosic waste in pyrolysis, co-pyrolysis and gasification, through physicochemical and thermogravimetric characterisation, non-isothermal kinetics, activation thermodynamics and equilibrium models, in order to design more efficient conversion processes.

Current questions

  • Isoconversional kinetics and activation thermodynamics of co-pyrolysis
  • Synergies between residues in blends
  • Self-purging pyrolysis without inert gas
  • Gibbs free-energy minimisation equilibrium models

Results

Co-supervised doctoral thesis, with laureate distinction, on small-scale co-gasification of pelletised rice husk and corncob (2026). Undergraduate theses with laureate distinction on pelletised biochar by slow pyrolysis and on the thermogravimetric analysis of the lignocellulosic fraction of municipal waste (2026). International talk on pyrolytic gas from pelletised blends in a batch reactor (2025).

Produces original kinetic and thermodynamic data on agro-industrial residues, used to size reactors and train predictive models.

Publications in this line

L2Energy, economic and environmental assessment

Exergy analysis and techno-economic and environmental assessment of energy systems

Assess the technical, economic and environmental feasibility of energy conversion processes and systems through the second law of thermodynamics, techno-economic assessment and environmental assessment, to guide investment and energy-policy decisions.

Current questions

  • Exergy of conversion processes
  • Techno-economic assessment under uncertainty
  • Integrated economic and environmental assessment
  • Waste-to-energy and landfill-gas-to-hydrogen routes

Results

Techno-economic and environmental assessment of landfill gas to energy in major cities (Energy Conversion and Management, 2023). Energy transition scenarios (Clean Technologies, 2025) and hybrid renewable energy systems for off-grid regions (BioEnergy Research, 2026). Book on a methodological tool to select energy recovery alternatives for municipal waste (2025).

Provides quantitative criteria to compare technologies by energy quality, cost and environmental impact, and to prioritise the projects most likely to succeed.

Publications in this line

L3Conversion and valorisation of residual biomass

Energy valorisation of agro-industrial waste and circular bioeconomy

Develop and assess energy recovery routes for agro-industrial and organic waste, such as anaerobic digestion, densification and biorefineries, with a circular-economy approach relevant to agro-industrial value chains.

Current questions

  • Anaerobic co-digestion of farm residues
  • Densification and pelletising
  • Biorefineries for cassava, oil palm, rice and maize residues

Results

Bioenergy and biorefinery potential of agricultural and agro-industrial residues (Waste and Biomass Valorization, 2024). Co-pelletisation of rice husk and corncob (Recycling, 2025). Spatial multi-criteria framework for anaerobic co-digestion substrate selection (Biomass, 2026). Completed master's thesis on the techno-economic sustainability of biomethane (2025) and an ongoing doctoral thesis on energy recovery scenarios for farm residues by anaerobic co-digestion.

Turns waste into energy options and valuable products for growers and agro-industries, and trains professionals in the circular bioeconomy.

Publications in this line

L4Modelling, data and artificial intelligence

Modelling, simulation, control and data analytics for bioenergy systems

Develop kinetic, thermodynamic, stochastic and simulation models, and data-analytics tools, to describe, predict and control bioenergy and waste management systems at process and system scale.

Current questions

  • Process simulation and control
  • Compositional data analysis
  • Waste forecasting with time series
  • Stochastic models

Results

Prediction models for the bio-oil potential of cassava value-chain residues (2024). Machine-learning projection of waste generation (2024). Waste Kuznets curve for municipal solid waste (Urban Science, 2026).

Equips the other lines with reproducible quantitative methods and links laboratory results to design and planning decisions.

Publications in this line

L5Modelling, data and artificial intelligence

Artificial intelligence and machine learning applied to energy and residual biomass

Build machine-learning models, interpretable surrogate models and open databases to predict the properties and behaviour of residual biomass of diverse origin and of energy conversion processes.

Current questions

  • Surrogate models for TG and DTG curves
  • Model interpretability
  • Open biomass databases

Results

Ongoing project INGEBIR-P01, which develops AI models to predict the thermogravimetric, energy and exergy behaviour of the co-pyrolysis of cassava stumps and oil palm fibre. Predictive models of waste generation and bio-oil potential presented at international conferences (2024).

Cuts the number of tests needed to characterise a biomass and leaves open databases available to the scientific community.

Publications in this line

L6Energy, economic and environmental assessment

Life cycle assessment and environmental sustainability

Assess the environmental impacts of bioenergy, waste management and carbon transformation routes through life cycle assessment, carbon footprint and sustainability and circular-economy indicators.

Current questions

  • Life cycle assessment to ISO 14040
  • Carbon footprint
  • Sustainability and circular-economy indicators

Results

Environmental components of the landfill gas (2023) and hybrid renewable energy (2026) assessments. International talk on life cycle assessment modifications for carbon dioxide conversion into high-value products (2025).

Provides evidence of the environmental benefits of the technologies studied and avoids shifting impacts from one stage to another.

Publications in this line

Ongoing project

The group project feeds several lines at once and produces the data shared by the three programmes.

Participation in other projects

Projects directed by other institutions or groups in which INGEBIR members take part.

Member participation since 2021

Sustainable recovery and valorisation of organic solid waste and its possible application in biorefineries and waste-to-energy technologies in the department of Sucre

Research and development project of Universidad de Sucre, directed by a researcher outside INGEBIR and carried out with Universidad de la Costa and Universidad Nacional de Colombia (Manizales). Daniel Otero Meza was co-investigator and coordinator from 2021 to 2025, and Eduardo Arroyo Dagobeth has taken part since 2022. Jorge Hernández Ruydíaz's doctoral thesis, co-supervised by Daniel Otero Meza, is carried out within it.