For the hydrogenation of diesel and gasoline, at which stage is feed generally introduced into the fractionation tower?
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Our unit performs full-range hydrogenation; the feed enters at the 8th stage of the distillation tower, which has 36 trays. However, we now want to process only gasoline and diesel – is the feed level to the distillation tower currently too low? ? ? Solve? ? ?
Our diesel and gasoline hydrogenation capacity is 800,000 tons, with 16 feed levels. A total of 35 trays.
400,000 tons of diesel hydrogenation, 12 feed levels, totaling 24 levels
Our diesel and gasoline hydrogenation capacity is 800,000 tons, with 16 feed levels. A total of 34 trays.
800,000 tons of diesel hydrogenation, 18 feed levels, a total of 30 levels
Our 800,000-ton diesel hydrotreating unit is the same as the one on the upper floor; it has a feed at the 18th floor, with a total of 30 floors
Your unit is for the hydrogenation of the entire gasoline fraction; you currently want to switch to hydrogenation using a mixture of gasoline and diesel, right? I guess this won’t work; the distillation section is too short. Even if you think it’s feasible, you still need to have a design firm prepare the drawings
The refining section is too short; it would be advisable to consult experts in design to see if it can be modified. It’s best to improve the three-feed system – for example, feed inlets can be placed at positions 18, 20, and 22 to enable adjustments.
Generally, a saturated feed is designed, depending on the initial boiling point of the gasoline you want to distill and the dry point of the naphtha