P20
Frame ID: P20
Sample ID: Petroleum (Delayed) Coke
Magnification: As given
Illuminator: Vertical
Objective: 50x oil
Polarizer: In
Analyzer: In
Retarder Plate: In
Filter: None
Important Features: Sponge coke
Description: Coke derived from a petroleum feedstock that shows abundant pore structure. Note the flow texture in the coke cell walls.