Patent ID: 11891581
Assignee: MARATHON PETROLEUM COMPANY LP
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A coke catching device to be positioned inside a petroleum product processing unit, the coke catching device comprising:
a bottom section configured to be positioned inside the petroleum product processing unit adjacent an outlet thereof, the bottom section having a plurality of apertures therein;
a grid section connected to the bottom section and including a plurality of openings therein, the plurality of openings being sized to retain large spalled coke pieces in the petroleum product processing unit and to permit at least some spalled coke pieces to pass therethrough, the large spalled coke pieces defined as those spalled coke pieces unable easily to fit through the plurality of openings in the grid section; and
a top section connected to the grid section, each of the top section, the grid section, and the bottom section in combination defining a liquid pathway through one or more of the plurality of openings of the grid section, through one or more of the plurality of apertures of the bottom section and into the outlet of the petroleum product processing unit, thereby to allow small pieces of coke contained in the liquid petroleum product within the petroleum product processing unit to pass through to the outlet while preventing large pieces of coke contained in the liquid petroleum product from passing through when the petroleum liquid flows into the grid section and to the outlet prior to output of the refined petroleum liquid.