Show simple item record

dc.contributor.authorDuran-Jimenez, Gabriela
dc.contributor.otherRodriguez, Jose
dc.contributor.otherKostas, Emily T.
dc.contributor.otherStevens, Lee A.
dc.contributor.otherLozada-Rodriguez, Leticia
dc.contributor.otherBinner, Eleanor
dc.contributor.otherDodds, Chris
dc.description.abstractMicrowave 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 investigated in preparing engineered ultra-micropore carbons from lignocellulosic biomass. The processing conditions were systematically investigated and correlated to the physicochemical properties of activated carbons produced and their performance in post-combustion CO2 capture. The highest CO2 uptake (225 mg g-1) was achieved for the hybrid carbon produced at low temperature (600 °C) and modest microwave intensity. The synergic effect of hybrid heating was confirmed by the significant CO2 uptake increase up to 80 and 60 % for the activated carbons prepared by microwave and conventional heating, respectively. The enhanced adsorption was confirmed by cyclic regeneration up to 99 % after 16 adsorption-desorption cycles, showing a linear correlation between the surface area, micropore volume and CO2 uptake. The Pseudo-first order model accurately describes the adsorption phenomena, indicating that physisorption is the primary mechanism governing the process. The results acquired from this study highlight the process intensification in the synthesis of porous materials with comparable properties that are typically attained in conventional heating using energy intensive conditions. Additionally, this approach reveals the benefits of conventional treatment for increasing the material’s microwave susceptibility and as consequence to reduce the processing time by microwave heating. The synergic effects confirms the potential of hybrid heating for applications where fast and selective heating is paramount.en_UK
dc.publisherUniversity of Nottinghamen_UK
dc.sourceDOI: 10.1016/j.cej.2022.135549en_UK
dc.subject.lcshCarbon dioxide mitigationen_UK
dc.subject.lcshMicrowave heatingen_UK
dc.subject.lcshCarbon, Activateden_UK
dc.titleSimultaneous conventional and microwave heating for the synthesis of adsorbents for CO2 capture: comparative study to pristine technologiesen_UK
dc.subject.freeCO2 capture, simultaneous heating technologies, adsorption kinetics models, microwaves, Biomass re-utilisation, Activated carbonen_UK
dc.subject.jacsEngineering::Chemical, process & energy engineering::Chemical engineeringen_UK
dc.subject.lcT Technology::TP Chemical technologyen_UK
dc.contributor.corporateUniversity College Londonen_UK
dc.contributor.corporateUniversidad Autónoma de Zacatecasen_UK
uon.divisionUniversity of Nottingham, UK Campusen_UK
uon.datatypeResearch paperen_UK
uon.collectionmethodexperimental dataen_UK
uon.institutes-centresUniversity of Nottingham, UK Campusen_UK
dc.relation.doiDOI: 10.1016/j.cej.2022.135549en_UK

Files in this item


This item appears in the following Collection(s)

  • Public Research Data
    A collection of research data, held in this repository, that is publicly available, except where individual embargoes apply

Show simple item record

Except where otherwise noted, this item's license is described as Creative Commons by Attribution