Outputs (36)

Quality variation of pyrolytic products from anaerobic digestion crop waste: Influence of increasing inorganics through anaerobic digestion and different pyrolysis conditions (2025)
Journal Article
Diaz Perez, N., van den Broek, L. A., Lindfors, C., Stevens, L., & Meredith, W. (2025). Quality variation of pyrolytic products from anaerobic digestion crop waste: Influence of increasing inorganics through anaerobic digestion and different pyrolysis conditions. Journal of Analytical and Applied Pyrolysis, 190, Article 107135. https://doi.org/10.1016/j.jaap.2025.107135

A variety of scenarios concerning the anaerobic digestion (AD) process, due to the amount of material remaining, have been the subject of studies to increase circularity and to generate further high-value products in addition to biogas. Digestate, or... Read More about Quality variation of pyrolytic products from anaerobic digestion crop waste: Influence of increasing inorganics through anaerobic digestion and different pyrolysis conditions.

Towards a scalable cacao pod husk biorefinery: Understanding the effects of process conditions on phenolic antioxidant extraction and residual solid properties (2024)
Journal Article
Dewi, S. R., Stevens, L. A., Anwar, M., Mao, Y., Ferrari, R. S., Irvine, D. J., & Binner, E. R. (2025). Towards a scalable cacao pod husk biorefinery: Understanding the effects of process conditions on phenolic antioxidant extraction and residual solid properties. Chemical Engineering Science, 305, Article 121171. https://doi.org/10.1016/j.ces.2024.121171

Cacao pod husk (CPH) is a potential source of phenolic-based antioxidants and lignocellulosic compounds. Sample pretreatments and extraction conditions were investigated to understand their effects on extraction yields and implications for industrial... Read More about Towards a scalable cacao pod husk biorefinery: Understanding the effects of process conditions on phenolic antioxidant extraction and residual solid properties.

Single-step preparation of activated carbons from pine wood, olive stones and nutshells by KOH and microwaves: Influence of ultra-microporous for high CO2 capture (2024)
Journal Article
Duran-Jimenez, G., Rodriguez, J., Stevens, L., Altarawneh, S., Batchelor, A., Jiang, L., & Dodds, C. (2024). Single-step preparation of activated carbons from pine wood, olive stones and nutshells by KOH and microwaves: Influence of ultra-microporous for high CO2 capture. Chemical Engineering Journal, 499, Article 156135. https://doi.org/10.1016/j.cej.2024.156135

Biomass residues are crucial feedstocks for facing climate change challenges due to high-value products, such as producing activated carbons (AC) for carbon capture. Two stages of pyrolysis followed by activation at high temperatures are the most use... Read More about Single-step preparation of activated carbons from pine wood, olive stones and nutshells by KOH and microwaves: Influence of ultra-microporous for high CO2 capture.

MRI and PFG NMR studies of percolation effects in advanced melting during a cryoporometry characterisation of disordered mesoporous alumina (2024)
Journal Article
Himona, E., Stevens, L., Williams, H., & Rigby, S. P. (2024). MRI and PFG NMR studies of percolation effects in advanced melting during a cryoporometry characterisation of disordered mesoporous alumina. Microporous and Mesoporous Materials, 377, Article 113202. https://doi.org/10.1016/j.micromeso.2024.113202

Cryoporometry (or thermoporometry) offers a way of pore structural characterisation for mesoporous materials that often needs little sample preparation, is relatively quick, and is statistically-representative for macroscopic samples. While it is wel... Read More about MRI and PFG NMR studies of percolation effects in advanced melting during a cryoporometry characterisation of disordered mesoporous alumina.

Microwave thermal pre-treatment and calcination of biomineralised sorbents for calcium looping (2024)
Journal Article
Erans, M., Durán-Jimenez, G., Rodríguez, J. M., Stevens, L., & Dodds, C. (2024). Microwave thermal pre-treatment and calcination of biomineralised sorbents for calcium looping. Journal of Co2 Utilization, 83, Article 102794. https://doi.org/10.1016/j.jcou.2024.102794

Waste eggshells have been investigated as biomineralised CO2 sorbents for the calcium looping cycle due to their high Ca content, low cost, availability, and high CO2 uptake. This work investigates a novel heat-pre-treatment using eggshells as raw ma... Read More about Microwave thermal pre-treatment and calcination of biomineralised sorbents for calcium looping.

Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption (2024)
Journal Article
Durán-Jiménez, G., Rodriguez, J., Stevens, L., Kostas, E. T., & Dodds, C. (2024). Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption. Chemical Engineering Journal, 488, Article 150926. https://doi.org/10.1016/j.cej.2024.150926

Hierarchical porous activated carbons (ACs) were efficiently synthesized in less than 2 min using microwaves and phosphoric acid (H3PO4), exhibiting excellent potential as adsorbent for carbon dioxide (CO2) and Methylene Blue (MB). The method emphasi... Read More about Microwave pyrolysis of waste biomass and synthesis of micro-mesoporous activated carbons: The role of textural properties for CO2 and textile dye adsorption.

Exploring the Utilisation of Natural Biosorbents for Effective Methylene Blue Removal (2023)
Journal Article
Güleç, F., Williams, O., Samson, A., Kostas, E., Stevens, L. A., & Lester, E. (2023). Exploring the Utilisation of Natural Biosorbents for Effective Methylene Blue Removal. Applied Sciences, 14(1), Article 81. https://doi.org/10.3390/app14010081

This paper presents a comprehensive analysis of the adsorbent capacity of five distinctly different biosorbents derived from untreated biomasses. The optimal adsorption capacity of seaweed (Laminaria digitata), horse chestnut husk, hazelnut husk, rap... Read More about Exploring the Utilisation of Natural Biosorbents for Effective Methylene Blue Removal.

GC-MS analysis of alkylpyrazines in the pyrolysis oils of silica-polyethylenimine CO2 sorbents (2023)
Journal Article
Coralli, I., Spada, L., Fabbri, D., Pour, S. R. S., Fiori, J., Vassura, I., Stefanidis, S., Lappas, A., Stevens, L. A., & Snape, C. E. (2024). GC-MS analysis of alkylpyrazines in the pyrolysis oils of silica-polyethylenimine CO2 sorbents. Journal of Chromatography Open, 5, Article 100108. https://doi.org/10.1016/j.jcoa.2023.100108

Solid sorbents based on silica and polyethyleneimine (PEI) are intensively investigated in the field of carbon capture and storage (CCS). Pyrolysis was proposed as a thermal process to recover the pure silica from exhausted sorbents and convert PEI i... Read More about GC-MS analysis of alkylpyrazines in the pyrolysis oils of silica-polyethylenimine CO2 sorbents.

Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine (2023)
Journal Article
Coralli, I., Giuri, D., Spada, L., Ortolani, J., Mazzocchetti, L., Tomasini, C., Stevens, L. A., Snape, C. E., & Fabbri, D. (2023). Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine. International Journal of Molecular Sciences, 24(19), Article 14415. https://doi.org/10.3390/ijms241914415

The search for alternative ways to give a second life to materials paved the way for detailed investigation into three silica-polyethylenimine (Si-PEI) materials for the purpose of CO2 adsorption in carbon capture and storage. A solvent extraction pr... Read More about Valorization Strategies in CO2 Capture: A New Life for Exhausted Silica-Polyethylenimine.

Amine functionalized lignin-based mesoporous cellular carbons for CO2 capture (2023)
Journal Article
Sani, S., Liu, X., Stevens, L., Wang, H., & Sun, C. (2023). Amine functionalized lignin-based mesoporous cellular carbons for CO2 capture. Fuel, 351, Article 128886. https://doi.org/10.1016/j.fuel.2023.128886

Amine-impregnated mesoporous carbon sorbents have been considered one of the most promising sorbents for CO2 capture from streams with low CO2 concentrations. In this work, a series of novel solid amine adsorbents were prepared by impregnating polyet... Read More about Amine functionalized lignin-based mesoporous cellular carbons for CO2 capture.