French primeG gasoline two-stage hydrogenation
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Why can maintaining a basically consistent temperature rise in each bed layer and ensuring a basically consistent desulfurization rate in the first and second stages reduce octane number loss?
There is a positive exponential relationship between the desulfurization rate and the olefin saturation rate; the higher the desulfurization rate, the greater the olefin saturation rate； The temperature rise in each bed layer is an indirect indicator of the degree of olefin saturation; by reducing the overall temperature rise and achieving equilibrium across all beds, the desulfurization efficiency is maximized, which in turn results in less loss of octane value