Petroleum Cokes

 

	Frame ID: P01 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Needle coke High Resolution Image (300 dpi)
Description: Typical needle coke derived from a petroleum feedstock. The parallel layers and linear fractures are distinctive and provide slip planes to relieve stress in the coke.

 

	Frame ID: P02 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Needle coke High Resolution Image (300 dpi)
Description: Typical needle coke derived from a petroleum feedstock. The parallel layers and linear fractures are distinctive and provide slip planes to relieve stress in the coke.

 

	Frame ID: P03 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Needle coke High Resolution Image (300 dpi)
Description: Typical needle coke derived from a petroleum feedstock. The parallel layers and linear fractures are distinctive and provide slip planes to relieve stress in the coke.

 

	Frame ID: P04 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Needle coke High Resolution Image (300 dpi)
Description: Typical needle coke derived from a petroleum feedstock. The distinctive parallel layers and fractures are curved due to deformation in the plastic state.

 

	Frame ID: P05 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Needle coke High Resolution Image (300 dpi)
Description: Typical needle coke derived from a petroleum feedstock. The distinctive parallel layers and fractures are curved due to deformation in the plastic state.

 

	Frame ID: P06 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Needle coke High Resolution Image (300 dpi)
Description: Typical needle coke derived from a petroleum feedstock. The distinctive parallel layers and fractures are curved due to deformation in the plastic state.

 

	Frame ID: P07 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Coarse mesophase coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that is transitional into a mesophase mixed-layer type structure.

 

	Frame ID: P08 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Coarse mesophase coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that is transitional into a mesophase mixed-layer type structure.

 

	Frame ID: P09 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Coarse mesophase coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that is transitional into a mesophase mixed-layer type structure.

 

	Frame ID: P10 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Coarse mesophase coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that is transitional into a mesophase mixed-layer type structure. Note the nature of the layering based on different grain sizes.

 

	Frame ID: P11 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock showing an elongate porous flow texture.

 

	Frame ID: P12 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a medium-grained granular texture. Note the near absence of parallel flow texture.

 

	Frame ID: P13 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a fine-grained granular texture. Note the layering indicated by different grain sizes.

 

	Frame ID: P14 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a fine-grained granular texture. Note the near absence of parallel flow texture and the layering shown by variations in grain size.

 

	Frame ID: P15 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a fine-grained granular texture.

 

	Frame ID: P16 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a fine-grained granular texture.

 

	Frame ID: P17 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a very fine-grained granular texture. Note the coarser grain size at the edges of the particle. The fine-grained area may be the initial stage of a shot structure.

 

	Frame ID: P18 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 High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows abundant pore structure. Note the flow texture in the coke cell walls.

 

	Frame ID: P19 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows abundant pore structure. Note the flow texture in the coke cell walls.

 

	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 High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows abundant pore structure. Note the flow texture in the coke cell walls.

 

	Frame ID: P21 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Granular coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows abundant pore structure. Note the flow texture in the coke cell walls.

 

	Frame ID: P22 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Shot coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a shot structure. Note the circular area (shot) at the top of the frame. In hand specimen this type of coke consists of small spherical pellets.

 

	Frame ID: P23 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Shot coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a shot structure. Note the circular area (shot) at the bottom of the frame. In hand specimen this type of coke consists of small spherical pellets.

 

	Frame ID: P24 Sample ID: Petroleum (Delayed) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Shot coke High Resolution Image (300 dpi)
Description: Coke derived from a petroleum feedstock that shows a shot structure. Note the circular area (shot) in the middle of the frame. In hand specimen this type of coke consists of small spherical pellets.

 

	Frame ID: P25 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Mesophase spheres High Resolution Image (300 dpi)
Description: Mesophase spheres formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P26 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Mesophase spheres High Resolution Image (300 dpi)
Description: Mesophase spheres formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P27 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Circular structures High Resolution Image (300 dpi)
Description: Circular structures formed by mesophase formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P28 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Circular structures High Resolution Image (300 dpi)
Description: Circular structures formed by mesophase formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P29 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Circular structures High Resolution Image (300 dpi)
Description: Circular structures formed by mesophase formed in the petroleum feedstock in the fluid coker. Note the two structures at the right of the frame.

 

	Frame ID: P30 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Circular structures High Resolution Image (300 dpi)
Description: Circular structures formed by mesophase formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P31 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Circular structures High Resolution Image (300 dpi)
Description: Circular structures formed by mesophase formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P32 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Circular structures High Resolution Image (300 dpi)
Description: Circular structures formed by mesophase formed in the petroleum feedstock in the fluid coker.

 

	Frame ID: P33 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particles High Resolution Image (300 dpi)
Description: Fluid coke particles formed in the fluid coker. Note the round shape of the particles and the green edge-ring growth. Also note the agglomeration in the center particle.

 

	Frame ID: P34 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particles High Resolution Image (300 dpi)
Description: Fluid coke particles formed in the fluid coker. Note the round shape of the particles and the green edge-ring growth. Also note the agglomeration in the center particle.

 

	Frame ID: P35 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particle High Resolution Image (300 dpi)
Description: Fluid coke particle formed in the fluid coker. Note the signs of agglomeration and the different types of fraction patterns.

 

	Frame ID: P36 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particle High Resolution Image (300 dpi)
Description: Fluid coke particle formed in the fluid coker. Note the concentric fracture patterns.

 

	Frame ID: P37 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particle High Resolution Image (300 dpi)
Description: Fluid coke particle formed in the fluid coker. Note the signs of agglomeration and the concentric fracture patterns.

 

	Frame ID: P38 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particle High Resolution Image (300 dpi)
Description: Fluid coke particle formed in the fluid coker. Note the signs of agglomeration and the concentric fracture patterns.

 

	Frame ID: P39 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particle High Resolution Image (300 dpi)
Description: Fluid coke particle formed in the fluid coker showing concentric structure and spoke-like extinction patterns.

 

	Frame ID: P40 Sample ID: Petroleum (Fluid) Coke Magnification: As given Illuminator: Vertical Objective: 50x oil Polarizer: In Analyzer: In Retarder Plate: In Filter: None Important Features: Fluid coke particle High Resolution Image (300 dpi)
Description: Fluid coke particle formed in the fluid coker showing concentric structure and spoke-like extinction patterns