Decane hydroconversion was used to evaluate the potential of the materials as hydrocracking catalysts for vacuum bottoms.
A series of Ni-Mo/Al2O3 catalysts for hydrotreating deasphalted vacuum bottoms has been investigated after aging in a commercial reactor during a typical industrial run.
The system consists of two parts: a specially designed suction head connected to a pump that is used to vacuum the bottom of hatchery raceways, and a low-adhesion polymer raceway lining.
Skim the surface with a net, and vacuum the bottom and sides.
Do not vacuum the bottom of the tank, baby shrimp get a lot of their daily food out of the "waste".
Group contribution (GC) methods were applied for the determination of critical properties of molecular representations developed by Sheremata for Athabasca vacuum tower bottoms (VTB).
I still listen and watch for news of a miracle survivor somewhere in a vacuum on the bottom floors.
The patented robot, which looks like a Roomba, has a vacuum on its bottom with two computer fans, two wheels and has an Arduino-based custom electronic set up inside.
Vacuum silt off bottom with a siphon.
The water inside of it doesn't move as quickly, creating an extremely brief void (vacuum) at the bottom.
