Fuel 162 (2015) 179–185 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel a,⇑ b c c d,1 Michael L. Greenﬁeld , Michael Byrne , Sudipa Mitra-Kirtley , Eric M. Kercher , Trudy B. Bolin , d e e e Tianpin Wu , Paul R. Craddock , Kyle D. Bake , Andrew E. Pomerantz Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881, USA Rhode Island Department of Transportation, Two Capitol Hill, Providence, RI 02903, USA Rose-Hulman Institute of Technology, Terre Haute, IN 47803, USA Argonne National Laboratory, 9700 South Cass Ave, Argonne, IL 60439, USA Schlumberger-Doll Research, 1 Hampshire St., Cambridge, MA 02139, USA highl i ghts graphical a bstrac t Sulfur chemical speciation in a warm-mix asphalt was measured by Sulfur K-edge XANES sulfur K-edge XANES. 8 Changes in sulfur speciation as a Sulfide consequence of RTFO and PAV aging Thiophene Sulfoxide were quantiﬁed. More sulﬁde is unoxidized than Asphalt converted to sulfoxide under RTFO or +RTFO PAV conditions. +PAV Thiophene is the dominant sulfur 2460 2465 2470 2475 2480 2485 2490 form regardless of extent of aging. Photon Energy (eV) article i nfo abstract Article history: Sulfur K-edge X-ray absorption near-edge structure (XANES) spectroscopy
Fuel – Elsevier
Published: Dec 15, 2015
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