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- W1591489147 abstract "TP-012-5 test objectives were to: Reduce char feed to a minimum while continuing to combust and agglomerate by increasing the fines feed rate; use process air as a transport gas for conveying fines through the coaxial fines feed line; successfully combust and agglomerate various feedstocks; study elutriation rates as a function of bed height and freeboard velocity; and test the air tube assembly modifications. Only the final two objectives were fully realized because of a premature shutdown. The task of defining the mechanism causing the wall deposits experienced in recent gasifier tests continues. Literature was searched for similar experiences in other pilot plants, and conferences were held with various representatives. X-ray diffraction and electron microprobe survey results show the major constituent to be SiO/sub 2/ with a high concentration of Fe, Al, Si and K. Scanning x-ray micrographs suggested the presence of a ''binding matrix'' comprising the major elements Ca, Al and Si, fluxed by Fe and K. The formation, under operating temperatures, of a low-melting matrix material which ''catches particles by impingement and integrates them into a cohesive deposit,'' has been proposed. Chemical analyses of the samples of wall deposits, when compared to ash analyses of samples of coke breeze showed an increase in Na/sub 2/O, K/sub 2/O and TiO/sub 2/ which were believed to be fluxing agents, while there were no significant changes in the major elements (SiO/sub 2/, Al/sub 2/O/sub 3/, Fe/sub 2/O/sub 3/, CaO, MgO, SO/sub 3/)." @default.
- W1591489147 created "2016-06-24" @default.
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- W1591489147 date "1977-10-18" @default.
- W1591489147 modified "2023-09-26" @default.
- W1591489147 title "Advanced coal gasification system for electric power generation. Sixty-second monthly progress report, September 1977" @default.
- W1591489147 doi "https://doi.org/10.2172/5419574" @default.
- W1591489147 hasPublicationYear "1977" @default.
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