Monitoring
3 KPIs that should be included in the monthly monitoring report
What is WABT, H2 PP, reactor dP, axial dT, radial dT
Reaction name represented by HDN
What is Hydrodenitrogenation
Type of catalyst loading method
What is sock or dense loading?
Function of the catalyst top grading
What is particulate removal?
What is dP control?
What is spreading out the reaction?
R-SH
What is mercaptan
Behavior of lead bed reactor dT as the catalyst ages
What is decreasing
The term used to describe the heat release accompanying Hydrogen addition reactions.
What is exothermic?
Chemical used to activate a catalyst after a TAR
What is DMDS or Sulfurzol?
Immediate response of reducing H2 PP at the reactor outlet
What reduced activity?
NH4HS
What is ammonium bisulfide
This term describes the differences between the highest and lowest temperatures at a given elevation in a catalyst bed
What is radial dT
Process denoted by the acronym "SHU"
What is Selective Hydrogenation Unit
DAILY DOUBLE
What is MPT? minimum pressurization temperature
Term that describes rapidly accelerating hydrocracking reactions
What is runaway
Product of the decomposition of Sulfurzol, in addition to H2S
What is butane?
Poison of hydrotreater catalysts some of its sources are anti-foams and well chemicals
What is Si
Name 4 sites with HCUs
Where are KEN, LAR, LARW, ROB, GVL, GBR
Species monitored during catalyst cooldown to minimize formation of Nickel Carbonyl
What is CO?
DAILY DOUBLE
What is rejuvenation?
DMDS
What is dimethyl disulfide?
Fraction of the wash water injected upstream the REAC that should remain in liquid phase
What is 25-33%
Two "O's" preserved by the prime G process
What are olefins and octane
Damage mechanism of austinitic steels aided by the reaction of oxygen with sulfur species
What is PASCC polythionic acid stress corrosion cracking
Chemical that suppresses hydrocraking activity by titrating acid sites on the catalyst
What is NH3
Composed of crystalline silica and alumina, commonly used in hydrocraking catalysts
What is zeolite