Does an increase in the hydrogen-to-carbon ratio of the catalytic feedstock lead to an increase in the water content in the regenerated flue gas?
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I would like to ask the experts: if the hydrogen-to-carbon ratio of the catalytic feedstock increases, will the water content in the regenerated flue gas increase as well?
Not necessarily; the proportion of water in the flue gas is determined by the hydrogen-to-carbon ratio in the coke
First of all, it seems unlikely that it will increase. Firstly, an increase in the hydrogen-to-carbon ratio in the catalytic feedstock indicates an increase in alkanation (assuming the feedstock is straight-run and there are no secondary reactions); this helps to reduce the tendency to form coke. If coke formation is reduced, and the hydrogen-to-carbon ratio in the coke remains relatively constant, then the moisture content in the flue gas will not increase. In cases where the composition of catalytic feedstocks is complex (such as when using externally sourced fuel oil), the hydrogen-to-carbon ratio can help determine the quality of the feedstock and enable appropriate adjustment of operational parameters.