000126352 001__ 126352
000126352 005__ 20241125101140.0
000126352 0247_ $$2doi$$a10.1016/j.powtec.2023.118539
000126352 0248_ $$2sideral$$a133797
000126352 037__ $$aART-2023-133797
000126352 041__ $$aeng
000126352 100__ $$0(orcid)0000-0002-0704-4685$$aGil, Antonia$$uUniversidad de Zaragoza
000126352 245__ $$aPyrolysis and CO2 gasification of barley straw: Effect of particle size distribution and chemical composition
000126352 260__ $$c2023
000126352 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126352 5203_ $$aWe evaluate how the heterogeneity of the precursor may affect pyrolysis and CO2 gasification behavior aimed at activated carbon applications. Barley straw, ground and classified into five size ranges, is characterized by non-isothermal thermogravimetry tests at various heating rates. Fixed carbon and volatile matter contents decrease with particle size. Also, the finest fraction is enriched in minerals by exogenous contamination and accumulation of silicon-rich leaves. Faster pyrolysis kinetics are found for small sizes, caused by their higher alkali contents and heat-mass transfer rates. Char-CO gasification conversion rates show an unexpected behavior, not previously reported. Higher reactivity is found for the finest fraction, decreasing significantly at temperatures beyond 750 °C. The high alkali content of the finest fraction promotes the catalytic effect of minerals on gasification reactivity at lower temperatures, hindering the reaction at higher temperatures by forming low-melting-point potassium silicates. Results help improve pretreatment strategies to enhance activated carbon quality.
000126352 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/RTI2018-095349-A-I00
000126352 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000126352 590__ $$a4.5$$b2023
000126352 592__ $$a0.97$$b2023
000126352 591__ $$aENGINEERING, CHEMICAL$$b44 / 170 = 0.259$$c2023$$dQ2$$eT1
000126352 593__ $$aChemical Engineering (miscellaneous)$$c2023$$dQ1
000126352 594__ $$a9.9$$b2023
000126352 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126352 700__ $$0(orcid)0000-0002-4819-3636$$aPallarés, Javier$$uUniversidad de Zaragoza
000126352 700__ $$0(orcid)0000-0001-5473-6919$$aArauzo, Inmaculada$$uUniversidad de Zaragoza
000126352 700__ $$0(orcid)0000-0001-6665-5331$$aCortés, Cristóbal$$uUniversidad de Zaragoza
000126352 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000126352 773__ $$g424 (2023), 118539 [17 pp.]$$pPowder technol.$$tPowder Technology$$x0032-5910
000126352 8564_ $$s5449143$$uhttps://zaguan.unizar.es/record/126352/files/texto_completo.pdf$$yVersión publicada
000126352 8564_ $$s1966238$$uhttps://zaguan.unizar.es/record/126352/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126352 909CO $$ooai:zaguan.unizar.es:126352$$particulos$$pdriver
000126352 951__ $$a2024-11-22-12:02:21
000126352 980__ $$aARTICLE