1. Rhodium supported on thermally enhanced zeolite as catalysts for fuel reformation of jet fuels
- Author
-
Lee, Ivan C.
- Subjects
- *
ZEOLITES , *X-ray diffraction , *ORGANOMETALLIC compounds , *CARBON monoxide - Abstract
Abstract: Autothermal reformation of military jet fuel (1096ppmw sulfur) was investigated with rhodium supported on thermally stabilized Y zeolite catalysts. The zeolite catalysts were thermally stabilized by ion exchanging with nitrate solutions of rare-earth metals (La, Ce, Sm, Gd, Dy and Er). Surface area analyses indicated that the exchanged zeolite could maintain its porous structure as high as 950°C instead of 800°C for a commercial NaY zeolite. The structure of the exchanged zeolite was characterized by X-ray diffraction (XRD). Rh-SmNaY zeolite reforming catalysts were prepared by incipient wetness and organometallic synthesis. The JP8 reforming experiments were performed in a short contact time adiabatic reactor with a monolithic catalyst with the addition of air and steam at a temperature below 920°C. The effects of steam and fuel-to-air ratio (C/O ratio) were studied. Hydrogen and carbon monoxide were produced as the main products. Durability tests were performed with Rh/SmNaY-zeolite catalysts. This work shows that zeolite based catalysts can convert transportation fuels such as high sulfur jet fuel (over 1000ppmw S) to syngas for solid oxide fuel cell applications. [Copyright &y& Elsevier]
- Published
- 2008
- Full Text
- View/download PDF