In atmospheric and vacuum distillation units, are there any precedents of using a vacuum system to blend catalytic slurry?
Thread Content
It’s a small unit for treating atmospheric and vacuum distillation asphalt; it is planned to incorporate catalytic slurry into the mixture, with the slurry being introduced through a pipeline from the bottom of the distillation column. The lighter components of the slurry go into the side stream, while the heavier components and residue are removed from the unit. Have anyone done this before? Are the specifications for the oil from the side stream and the residue satisfactory? What difficulties were encountered?
Then don’t turn on your device. It is estimated that it will need to be shut down for maintenance in less than half a year. Filtering catalytic slurry is a world-class challenge; your facility is doomed to get clogged
It is possible to feed the oil slurry in small quantities into a solvent deasphalting unit; however, feeding it into a vacuum distillation unit has not been tried yet. Catalyst dust can wear out the pump at the bottom of the tower, and coking can also occur, leading to blockages； Moreover, if the catalytic slurry is light, adjustments can be made through catalytic distillation; why is it necessary to proceed with vacuum treatment?