All Outputs (18)

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.

Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor (2024)
Journal Article
Rodriguez, J., Morona, L., Erans, M., Buttress, A. J., Nicholls, M., Batchelor, A. R., Duran-Jimenez, G., Kingman, S., Groszek, D., & Dodds, C. (2024). Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor. Chemical Engineering and Processing: Process Intensification, 202, Article 109838. https://doi.org/10.1016/j.cep.2024.109838

Challenges exist to implementing high-temperature microwave processes with changing dielectric properties that achieve uniform processing. This paper presents a new high-temperature hybrid microwave processing system which overcomes these challenges... Read More about Solving the microwave heating uniformity conundrum for scalable high-temperature processes via a toroidal fluidised-bed reactor.

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.

Fast pyrolysis of agricultural residues: Reaction mechanisms and effects of feedstock properties and microwave operating conditions on the yield and product composition (2023)
Journal Article
Silos-Llamas, A. K., Sudibyo, H., Hernández-Montoya, V., Meredith, W., & Durán-Jiménez, G. (2023). Fast pyrolysis of agricultural residues: Reaction mechanisms and effects of feedstock properties and microwave operating conditions on the yield and product composition. Journal of Analytical and Applied Pyrolysis, 175, Article 106217. https://doi.org/10.1016/j.jaap.2023.106217

Fundamental understanding of the pyrolysis process plays an indispensable role in valorization of wastes and the development of novel sustainable technologies. This study introduces a novel approach by investigating the reaction mechanisms involve in... Read More about Fast pyrolysis of agricultural residues: Reaction mechanisms and effects of feedstock properties and microwave operating conditions on the yield and product composition.

Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies (2022)
Journal Article
Durán-Jiménez, G., Rodriguez, J., Kostas, E. T., Stevens, L. A., Lozada-Rodríguez, L., Binner, E., & Dodds, C. (2022). Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies. Chemical Engineering Journal, 438, Article 135549. https://doi.org/10.1016/j.cej.2022.135549

Microwave has become an attractive technology in the valorisation of renewable biomass and in the mitigation of challenges of climate change. In this work, the synergic effects of coupling microwave and mild conventional heating conditions has been i... Read More about Simultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: Comparative study to pristine technologies.

Macroalgal biorefinery concepts for the circular bioeconomy: A review on biotechnological developments and future perspectives (2021)
Journal Article
Kostas, E. T., Adams, J. M., Ruiz, H. A., Durán-Jiménez, G., & Lye, G. J. (2021). Macroalgal biorefinery concepts for the circular bioeconomy: A review on biotechnological developments and future perspectives. Renewable and Sustainable Energy Reviews, 151, Article 111553. https://doi.org/10.1016/j.rser.2021.111553

The imminent need for transition to a circular bioeconomy, based on the valorisation of renewable biomass feedstocks, will ameliorate global challenges induced by climate change, environmental pollution and population growth. A reduced reliance on de... Read More about Macroalgal biorefinery concepts for the circular bioeconomy: A review on biotechnological developments and future perspectives.

Green and simple approach for low-cost bioproducts preparation and CO2 capture (2021)
Journal Article
Durán-Jiménez, G., Kostas, E. T., Stevens, L. A., Meredith, W., Erans, M., Hernández-Montoya, V., …Binner, E. (2021). Green and simple approach for low-cost bioproducts preparation and CO2 capture. Chemosphere, 279, Article 130512. https://doi.org/10.1016/j.chemosphere.2021.130512

This study has demonstrated, for the first time, a simple, fast and flexible microwave processing method for the simultaneous preparation of bio-products (bio-oil, bio-gas and biochar) using a methodology that avoids any form of catalyst or chemical... Read More about Green and simple approach for low-cost bioproducts preparation and CO2 capture.

Rapid, simple and sustainable synthesis of ultra-microporous carbons with high performance for CO2 uptake, via microwave heating (2020)
Journal Article
Durán-Jiménez, G., Stevens, L. A., Kostas, E. T., Hernández-Montoya, V., Robinson, J. P., & Binner, E. R. (2020). Rapid, simple and sustainable synthesis of ultra-microporous carbons with high performance for CO2 uptake, via microwave heating. Chemical Engineering Journal, 388, Article 124309. https://doi.org/10.1016/j.cej.2020.124309

Microwave pyrolysis of olive pomace for bio-oil and bio-char production (2019)
Journal Article
Williams, O. S., Kostas, E. T., Durán-Jiménez, G., Shepherd, B. J., Meredith, W., Stevens, L. A., …Lye, G. J. (2020). Microwave pyrolysis of olive pomace for bio-oil and bio-char production. Chemical Engineering Journal, 387, Article 123404. https://doi.org/10.1016/j.cej.2019.123404

Olive pomace is a widely available agro-industrial waste residue in Europe that has the potential to contribute towards a circular, low carbon bio-economy. This study demonstrated, for the first time, the ability to successfully pyrolyse olive pomace... Read More about Microwave pyrolysis of olive pomace for bio-oil and bio-char production.

Fast regeneration of activated carbons saturated with textile dyes: Textural, thermal and dielectric characterization (2019)
Journal Article
Durán-Jiménez, G., Stevens, L. A., Hodgins, G. R., Uguna, J., Ryan, J., Binner, E. R., & Robinson, J. P. (2019). Fast regeneration of activated carbons saturated with textile dyes: Textural, thermal and dielectric characterization. Chemical Engineering Journal, 378, Article 121774. https://doi.org/10.1016/j.cej.2019.05.135

This study presents an investigation for comparing the regeneration process of two activated carbons saturated with Basic Blue 9 (BB9) and Acid Blue 93 (AB93) using conventional (250–500 °C) and microwave heating (100–300 W). The effect of the textil... Read More about Fast regeneration of activated carbons saturated with textile dyes: Textural, thermal and dielectric characterization.

Microwave pyrolysis of Laminaria digitata to produce unique seaweed-derived bio-oils (2019)
Journal Article
Kostas, E. T., Williams, O. S., Duran-Jimenez, G., Tapper, A. J., Cooper, M., Meehan, R., & Robinson, J. P. (2019). Microwave pyrolysis of Laminaria digitata to produce unique seaweed-derived bio-oils. Biomass and Bioenergy, 125, 41-49. https://doi.org/10.1016/j.biombioe.2019.04.006

Microwave pyrolysis has become an attractive form of processing technology to generate bio-oil, bio-char and syngas from different biomass feedstocks. In this study, microwave pyrolysis was performed on the UK native seaweed Laminaria digitata and it... Read More about Microwave pyrolysis of Laminaria digitata to produce unique seaweed-derived bio-oils.

Pb(II) removal using carbon adsorbents prepared by hybrid heating system: Understanding the microwave heating by dielectric characterization and numerical simulation (2018)
Journal Article
Durán-Jiménez, G., Hernández-Montoya, V., Oyarzun, J. R., Montes-Morán, M. Á., & Binner, E. (2019). Pb(II) removal using carbon adsorbents prepared by hybrid heating system: Understanding the microwave heating by dielectric characterization and numerical simulation. Journal of Molecular Liquids, 277, 663-671. https://doi.org/10.1016/j.molliq.2018.12.143

This work studies the effect of microwaves in the synthesis of carbon adsorbents using pecan nutshell biomass as a precursor in a hybrid multimode microwave cavity avoiding the utilization of chemical activation or susceptors. The dielectric properti... Read More about Pb(II) removal using carbon adsorbents prepared by hybrid heating system: Understanding the microwave heating by dielectric characterization and numerical simulation.

Microwave pyrolysis of pecan nut shell and thermogravimetric, textural and spectroscopic characterization of carbonaceous products (2018)
Journal Article
Durán-Jiménez, G., Hernández-Montoya, V., Montes-Morán, M., Kingman, S., Monti, T., & Binner, E. (2018). Microwave pyrolysis of pecan nut shell and thermogravimetric, textural and spectroscopic characterization of carbonaceous products. Journal of Analytical and Applied Pyrolysis, 135, 160-168. https://doi.org/10.1016/j.jaap.2018.09.007

In the present work, the pyrolysis of pecan nut shell was studied using microwave technology at different input power and exposure time. The carbonaceous products were characterized using elemental analysis, potentiometric titration, thermogravimetri... Read More about Microwave pyrolysis of pecan nut shell and thermogravimetric, textural and spectroscopic characterization of carbonaceous products.

New insights into microwave pyrolysis of biomass: preparation of carbon-based products from pecan nutshells and their application in wastewater treatment (2017)
Journal Article
Duran Jimenez, G., Monti, T., Titman, J. J., Hernandez-Montoya, V., Kingman, S., & Binner, E. (2017). New insights into microwave pyrolysis of biomass: preparation of carbon-based products from pecan nutshells and their application in wastewater treatment. Journal of Analytical and Applied Pyrolysis, 124, https://doi.org/10.1016/j.jaap.2017.02.013

Microwave pyrolysis of pecan nutshell (Carya illinoinensis) biomass was used to produce carbon-based solid products with potential application in contaminated water treatment.

A range of analytical techniques were applied to characterize the inter... Read More about New insights into microwave pyrolysis of biomass: preparation of carbon-based products from pecan nutshells and their application in wastewater treatment.

Study of the adsorption-desorption of Cu2+, Cd2+ and Zn2+ in single and binary aqueous solutions using oxygenated carbons prepared by Microwave Technology (2016)
Journal Article
Durán-Jiménez, G., Hernández-Montoya, V., Montes-Morán, M. A., Rangel-Méndez, J. R., & Tovar-Gómez, R. (2016). Study of the adsorption-desorption of Cu2+, Cd2+ and Zn2+ in single and binary aqueous solutions using oxygenated carbons prepared by Microwave Technology. Journal of Molecular Liquids, 220, 855-864. https://doi.org/10.1016/j.molliq.2016.05.027

In the present work was studied the adsorption-desorption of heavy metals from aqueous solutions using carbonaceous materials prepared with a technology that combines radiant and microwave heating. Three optimum carbons O-Cu, O-Cd and O-Zn were prepa... Read More about Study of the adsorption-desorption of Cu2+, Cd2+ and Zn2+ in single and binary aqueous solutions using oxygenated carbons prepared by Microwave Technology.

New oxygenated carbonaceous adsorbents prepared by combined radiant/microwave heating for the removal of Pb 2+ in aqueous solution (2015)
Journal Article
Durán-Jiménez, G., Hernández-Montoya, V., Montes-Morán, M. A., & Teutli-León, M. (2015). New oxygenated carbonaceous adsorbents prepared by combined radiant/microwave heating for the removal of Pb 2+ in aqueous solution. Journal of Analytical and Applied Pyrolysis, 113, 599-605. https://doi.org/10.1016/j.jaap.2015.04.001

Abstract This paper presents a new procedure to obtain efficient carbonaceous adsorbents for the removal of Pb2+ in aqueous solution. Experimental procedure includes a pre-treatment of pecan nut shells using radiant heating at low temperatures (280-3... Read More about New oxygenated carbonaceous adsorbents prepared by combined radiant/microwave heating for the removal of Pb 2+ in aqueous solution.

Adsorption of dyes with different molecular properties on activated carbons prepared from lignocellulosic wastes by Taguchi method (2014)
Journal Article
Durán-Jiménez, G., Hernández-Montoya, V., Montes-Morán, M. A., Bonilla-Petriciolet, A., & Rangel-Vázquez, N. A. (2014). Adsorption of dyes with different molecular properties on activated carbons prepared from lignocellulosic wastes by Taguchi method. Microporous and Mesoporous Materials, 199, 99-107. https://doi.org/10.1016/j.micromeso.2014.08.013

A design of experiments based in the Taguchi method was used to prepare activated carbons from different lignocellulosic residues with optimum properties for the removal of food and textile dyes (food yellow 4, food yellow 3, food red 17 and acid blu... Read More about Adsorption of dyes with different molecular properties on activated carbons prepared from lignocellulosic wastes by Taguchi method.