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Opportunity feed sources have extended the range of poisons that hydroprocessing unit operators must face. Many of the contaminants can cause severe catalyst poisoning, even at very low concentrations. Catalyst contamination negatively impacts your return on investment, which is why Criterion Catalysts & Technologies (Criterion) has committed unique R&D resources to solve the contaminant problems you face every day.

Criterion offers SENTRY™ Guard Catalysts and Support — an entire portfolio of products dedicated to protecting hydroprocessing operations from feedstock contaminants. SENTRY(TM) offers prevention, diagnosis and resolution of contamination issues — protecting your catalyst investment and, ultimately, your bottom line.

Product Information - Grading and Poison Control

Product Information - Grading and Poison Control

Catalyst Type/Applications Description
SENTRY™ OptiTrap Series - Medallion, MacroRing, Ring, Filterlobe Pressure Drop Control/Filtration - Hydrotreating applications SENTRY* OptiTrap deep bed filter systems employ inert and catalytically active shaped, high void aluminas to maximize the fouling tolerance of a hydroprocessing unit reactor.
SENTRY™ InterLayer Pressure Drop Control/Filtration - Hydrotreating applications SENTRY* InterLayer catalysts are durable trilobe nickel molybdenum (NiMo) and cobalt molybdenum (CoMo) promoted catalysts designed for size grading between small diameter catalysts and larger reactor support media.
SentrySupport[Active] Active Support - Hydrotreating applications SentrySupport[Active] is a durable, spherical nickel molybdenum promoted active support designed to provide the foundation for hydroprocessing reactor catalyst loads.
SentrySupport[Inert] Inert Support - Hydrotreating applications Durable, spherical inert ceramic support designed to provide the foundation and support for hydroprocessing reactor catalyst loads.  This product is designed to withstand the most severe environments.
SENTRY™ MaxTrap[As] NiMo - Naphtha Hydrotreating Trilobe catalyst on a high surface area alumina extrudate specially formulated to trap Arsenic (As) present in a wide range of petroleum feedstocks.  Protects high activity catalysts for significantly longer periods from arsenic poisoning. Demonstrates exceptional stability in this severe environment.
SENTRY™ MaxTrap[Ni,V] NiMo - Hydrotreating applications- Nickle/Vanadium trap Extrudate specially formulated to trap nickel and vanadium present in vacuum gas oils where asphaltene entrainment is present.
SENTRY™ MaxTrap[Ni,V]VGO NiMo - VGO applications - Nickle/Vanadium trap Optimized alumina extrudate specially formulated to trap nickel and vanadium present in deep cut vacuum gas oils or deasphalted oils.
SENTRY™ MaxTrap[Si] NiMo - Naphtha Hydrotreating - Silicon trap High surface area alumina extrudate specially formulated to trap silicon present in naphtha feeds.