@inproceedings{ef0a9d320af54c1f800240f07ec80775,
title = "High-temperature desulfurization with nanosize Zno",
abstract = "Thermal efficiencies of an integrated gasification combined cycle (IGCC) process can be enhanced with high-temperature desulfurization. Nanosize, sub-nano (clusters) and atomic-dispersed ZnO were prepared for the high-temperature desulfurization. An enhanced absorbance of the nanosize ZnO at 9668 eV is found by X-ray absorption near edge structure (XANES) spectroscopy. ZnO clusters are also observed in the channels of MCM-41. By temperature programmed sulfurization (TPS) and oxidization (TPO), it is found that the nanosize ZnO can be effectively sulfurized and regenerated (with air) at 940-950 K. The smaller ZnO clusters in MCM-41 can be sulfurized at relatively lower temperatures (700-820 K). The atomic dispersed ZnO on TiO2 having the strong metal-support interactions cannot be sulfurized at the temperatures of <960 K, and interestingly a small amount of ZnS can be regenerated at much lower temperatures (i.e., <650 K). It seems that the nano- or sub-nano-(cluster)-size dispersed ZnO may be desired for the high-temperature desulfurization especially for a high efficiency IGCC based electric power generation process.",
author = "Wang, {T. C.} and Kang, {H. Y.} and Hong-Paul Wang and Jou, {C. J.G.} and Wei, {Y. L.}",
year = "2010",
month = nov,
day = "9",
language = "English",
isbn = "9781439834152",
series = "Nanotechnology 2010: Bio Sensors, Instruments, Medical, Environment and Energy - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010",
pages = "639--641",
booktitle = "Nanotechnology 2010",
note = "Nanotechnology 2010: Bio Sensors, Instruments, Medical, Environment and Energy - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010 ; Conference date: 21-06-2010 Through 24-06-2010",
}