Those are some great questions. I just checked the historical data and it looks like the normal temperature of the recycle H2 entering the sponge absorber is anywhere from 137F to 156.5F (average 149.7F). Lean oil is from 106.5F to 129.5F (average 117.9F). There is also a knockout drum...
It is downstream of of the recycle H2 compressor. A portion of the stream is used for recycle, the rest is pushed to the sponge absorber column. The lean oil is supposed to absorb propane + butanes and get routed back to the debutanizer column upstream (the overhead of the debutanizer column are...
Greetings,
I'm currently doing an internship at a refinery. One of my projects is to evaluate the cost/benefits of bringing back the sponge absorber within the rheniformer/platformer back to service. The sponge absorber's purpose is to absorb some more propane, butanes and some C5+s from the...
