t-Butyl alcohol (TBA) is an important octane enhancer that is used to replace lead additives in gasoline. TBA was produced by the liquid-phase hydration (W) of isobutene (I) over an Amberlyst-15 catalyst. The system is normally a multiphase mixture of hydrocarbon, water, and solid catalysts. The use of cosolvents or excess TBA can improve miscibility. The reaction mechanism is believed to be: K, = k,/k- W +S = W S Kw = kw/k-w W.S+1.S= TBA S+S Ke = kror/krev %3D TBA S= TBA + S KTBA = 1/KTBAD =k-TBA/KTBA Derive a rate law assuming: a) the surface reaction is rate-limiting. b) the adsorption of isobutene is limiting.
t-Butyl alcohol (TBA) is an important octane enhancer that is used to replace lead additives in gasoline. TBA was produced by the liquid-phase hydration (W) of isobutene (I) over an Amberlyst-15 catalyst. The system is normally a multiphase mixture of hydrocarbon, water, and solid catalysts. The use of cosolvents or excess TBA can improve miscibility. The reaction mechanism is believed to be: K, = k,/k- W +S = W S Kw = kw/k-w W.S+1.S= TBA S+S Ke = kror/krev %3D TBA S= TBA + S KTBA = 1/KTBAD =k-TBA/KTBA Derive a rate law assuming: a) the surface reaction is rate-limiting. b) the adsorption of isobutene is limiting.
Chapter28: Atomic Spectroscopy
Section: Chapter Questions
Problem 28.13QAP
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