000214453 001__ 214453
000214453 005__ 20190317000335.0
000214453 0247_ $$2doi$$a10.1016/j.cej.2015.11.096
000214453 02470 $$2ISI$$a000370085900003
000214453 037__ $$aARTICLE
000214453 245__ $$aHydrothermally-treated Na-X as efficient adsorbents for butadiene removal
000214453 269__ $$a2015
000214453 260__ $$aLausanne$$bElsevier Science Sa$$c2015
000214453 300__ $$a9
000214453 336__ $$aJournal Articles
000214453 520__ $$aAn efficient adsorbent for butadiene was synthesized via soft hydrothermal treatment (2 h in boiling water followed by 1 h calcination at 573 K) of industrial Na-X. The adsorption capacity of the zeolite was studied in the low concentration range (20–300 ppmv). Whereas original Na-X presents a very small adsorption, its treated counterpart shows a large capacity. The characterization of the zeolite suggests that the soft hydrothermal treatment dealuminates the zeolite leaving behind new OH-groups responsible for the adsorption of butadiene on the zeolite lattice. The adsorption isotherms were determined for the hydrothermally treated zeolites and the results were found to be consistent with the Dubinin–Astakhov (D–A) model. The adsorption enthalpy of butadiene on the treated Na-X was obtained from the D–A equation and from the modeling of temperature-programmed desorption profiles. Both methods gave a value of −45 kJ mol−1 suggesting chemical interactions of butadiene with the zeolite lattice. In summary, we report an efficient adsorbent for butadiene removal from diluted stream being valuable material for reducing butadiene emissions.
000214453 6531_ $$aButadiene adsorption
000214453 6531_ $$aNa-X zeolite
000214453 6531_ $$aSoft hydrothermal treatment
000214453 6531_ $$aDubinin-Astakhov adsorption isotherm
000214453 6531_ $$aButadiene adsorption enthalpy
000214453 6531_ $$aTPD modeling
000214453 700__ $$0245878$$aBaur, Guillaume Bastien$$g175326
000214453 700__ $$0248359$$aHéroguel, Florent Emmanuel$$g251271
000214453 700__ $$aSpring, Jonathan
000214453 700__ $$0248339$$aLuterbacher, Jeremy$$g154408
000214453 700__ $$0240077$$aKiwi, Lioubov$$g105553
000214453 773__ $$j288$$q19-27$$tThe Chemical Engineering Journal
000214453 8564_ $$s21127$$uhttps://infoscience.epfl.ch/record/214453/files/baur_hydrothermal_2015_thechemicalengineeringjournal.jpg$$yn/a$$zn/a
000214453 909C0 $$0252511$$pLPDC$$xU12907
000214453 909C0 $$0252033$$pLGRC$$xU10178
000214453 909CO $$ooai:infoscience.tind.io:214453$$pSB$$particle$$qGLOBAL_SET
000214453 917Z8 $$x251271
000214453 917Z8 $$x154408
000214453 917Z8 $$x148230
000214453 917Z8 $$x242569
000214453 937__ $$aEPFL-ARTICLE-214453
000214453 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000214453 980__ $$aARTICLE