Slugging characteristics, including slug velocity and frequency and the height of the slugging bed, for a slugging bed of four different types of coarse particles ranging from 1 to 7 mm in size are determined based on pressure fluctuation behavior of the bed. The slugging characteristics of coarse particle slugging beds are found to be much different from those of the particle slugging beds reported in the literature. The pressure fluctuation behavior in a coarse particle turbulent bed and the transition velocity from a slugging bed to a turbulent bed is also examined.

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The production of NO, N20, and 03 in atmospheric coronas was experimentally investigated using a specially designed plasma reactor operated at a pressure of 0.1 MPa and a temperature of 300 K. The yields of NO, N20, and 03 were found to be (1.4 ± 0.7) X 1016, (1 ± 0.5) X 1017, and (4 ± 2) X 1017 molecules/J, respectively. There was also formation of N02 which was attributed mainly to the rapid reaction between NO and 03. The results from this study confirm the predictions of mathematical simulations of corona chemistry.

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Ind. Eng. Chem. Process Des. Dev. 1984, 23, 538-545 x = mole fraction of methane in solution A a = solubility constant, eq 4 A@ = solubility constant, eq 4 y = activity coefficient AA = solubility constant, eq 4 4 = fugacity coefficient vij = moles of ith ionic species per mole of jth dissolved salt e = residual, eq 6 Registry No. Methane, 74-82-8. Literature CitedArnold, D. S.; Plank, C. A.; Erlckson, E. E.; Pike, F. P. Ind. Eng. Chem., Chem. Eng. Data Ser. 1958, 3, 253-256. Blount, C. W.; Price, L. C.; Wenger, L. M.; Tarullo, M. Proc. 4th U.S. Gulf Coast GeopressurebOeothermaI Energy Conference: Research and Development: Dorfman M. H.; w. L. Flsher, Ed.; Center for Energy Studles,The sulfation characteristics of "estone/dolomite sorbents in a vertlcal pneumatic transport reactor operated with or without the spent sorbent recycle are examined In this study. Experiments are performed in a 25.4-cm (10 in.) pilot scale reactor where limestone/ddomlte reacts with sulfur dioxide generated from coal combustion. A mathematical model i s employed to account for the SW dkxide conversian and the sorbent utilization in the vertlcal pneumatic transport reactor as a scrubber for flue gas desulfurization with limestone/dolomite sorbents. The comparison between the experimental data and model prediction is conducted.