Sands Ottawa coated

The older and less reliable high-conversion propane data were obtained in a small fluidized bed reactor (Type II) directly over coarsesized Ottawa sand. Despite the presence of the sand, the surface volume ratio in this reactor was not greatly different from that in the annular reactors. In any case, all quartz or sand surfaces were rapidly coated with carbon during the initiation of pyrolysis. Thus it is not believed that surface effects were significant to the experimental results. 

PZC/IEP of Fe Hydroxide-Coated Ottawa Sand Electrolyte T Method Instrument pH Reference... 

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