Screening & Segregation Services

Clean Harbors’ screening units segregate spent catalyst and classify material size.  Dust and fines from attrition created during the shipping and handling of catalyst are also removed.  Our units can easily segregate and class four particle sizes in a single pass prior to loading.

By screening the catalyst, broken pieces (chips and fines), which can increase pressure drop during reactor run operations, are removed.  This is particularly important in situations where spent catalyst will be reused or in reactors with a history of severe operating runs.  Our spent catalyst screening process also removes support material for reuse.

Clean Harbors Screening System

• Compact and mobile
• Safe and totally enclosed
• Works in conjunction with our dust control systems for removal of dust particles
• Classifies four sizes in a single pass

Compact and Mobile

Our systems are compact and mobile, allowing easy deployment and operation.  The total unit footprint is ~16 sq. ft. and weighs ~1,200 lbs.  This versatile system requires minimal setup time and can be used inside of any refinery or petrochemical plant in a Class 1, Division 2 environment.

Safe and Totally Enclosed

Clean Harbors screening systems are designed and built to allow for inert nitrogen purging for segregating pyrophoric materials, creating the safest and most efficient screening process.

Works in Conjunction with Dust Control Systems

By attaching our dust collection unit to the screening system, airborne dust particles can be removed during catalyst screening.  Not only does this additional screening protect the workers and surrounding environment, you benefit from the retrieval of precious metals.

Classifies Four Sizes in a Single Pass

Utilizing a stacked screen deck design, materials are passed through a specialized unit that segregates particles from largest to smallest classifying up to four sizes, plus dust and fines, in a single pass.  Our single pass process not only saves time and money, it reduces the risk of attrition and creates less dust.  Materials are taken off in “cuts” from each screen deck and packaged in drums, flo-bins or super sacks.