000130323 001__ 130323
000130323 005__ 20240124152850.0
000130323 0247_ $$2doi$$a10.3390/pr9081438
000130323 0248_ $$2sideral$$a125867
000130323 037__ $$aART-2021-125867
000130323 041__ $$aeng
000130323 100__ $$aFortea J.
000130323 245__ $$aAn insight into the separation of 1, 2-propanediol, ethylene glycol, acetol and glycerol from an aqueous solution by adsorption on activated carbon
000130323 260__ $$c2021
000130323 5060_ $$aAccess copy available to the general public$$fUnrestricted
000130323 5203_ $$aGlycerol conversion processes such as aqueous phase reforming and hydrogenolysis generate value-added compounds highly diluted in water. Because distillation is a high energy demand separation step, adsorption could be an attractive alternative to recover these chemicals. Adsorption isotherms of 1, 2-propanediol, acetol, ethylene glycol and glycerol onto activated carbon were determined by batch adsorption experiments. These isotherms were fitted slightly better to the Freundlich equation than to the Langmuir equation. Acetol is the compound with the highest adsorption at concentrations smaller than 1 M. Properties of the adsorbate such as the -OH group number, chain length, molecular size and dipole moment, besides characteristics of the adsorbent such as the surface area, oxygen and ash content, are considered to explain the observed results. Moreover, adsorption experiments were performed with mixtures of compounds and it was determined that the molar amount adsorbed is less than predicted from the adsorption isotherms of the individual compounds treated separately. In addition, the influence of the activated carbon thermal pretreatment temperature on the adsorption capacity has been studied, the optimum being 800¿C. An analysis of the influence of the activated carbon characteristics showed that the most important parameters are the total pore volume and the ash content. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
000130323 536__ $$9info:eu-repo/grantAgreement/ES/AEI-FEDER/CTQ2017-86893-R$$9info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-20R
000130323 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000130323 590__ $$a3.352$$b2021
000130323 591__ $$aENGINEERING, CHEMICAL$$b69 / 142 = 0.486$$c2021$$dQ2$$eT2
000130323 592__ $$a0.474$$b2021
000130323 593__ $$aChemical Engineering (miscellaneous)$$c2021$$dQ2
000130323 593__ $$aBioengineering$$c2021$$dQ2
000130323 594__ $$a3.5$$b2021
000130323 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000130323 700__ $$0(orcid)0000-0001-7115-9025$$aGarcía L.$$uUniversidad de Zaragoza
000130323 700__ $$0(orcid)0000-0002-2924-3095$$aRuiz J.$$uUniversidad de Zaragoza
000130323 700__ $$0(orcid)0000-0002-7179-3031$$aOliva M.$$uUniversidad de Zaragoza
000130323 700__ $$0(orcid)0000-0002-5959-3168$$aArauzo J.$$uUniversidad de Zaragoza
000130323 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000130323 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000130323 773__ $$g9, 8 (2021), 9081438 [15 pp]$$pProcesses$$tPROCESSES$$x2227-9717
000130323 8564_ $$s1904775$$uhttps://zaguan.unizar.es/record/130323/files/texto_completo.pdf$$yVersión publicada
000130323 8564_ $$s2684315$$uhttps://zaguan.unizar.es/record/130323/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000130323 909CO $$ooai:zaguan.unizar.es:130323$$particulos$$pdriver
000130323 951__ $$a2024-01-24-15:03:08
000130323 980__ $$aARTICLE