FCC Cyclones – Third Stage Separator Systems

FCC Cyclones – Third Stage Separator Systems


Fluid Catalytic Cracking Units (FCC Cyclones) are the principal technologies that enable the critical process within heavy oil refining of converting the heavy oils into more valuable gasoline and lighter products. More than half of the refinery’s heavy petroleum is processed through the FCC Cyclones, and the FCC Cyclones are also an important source of butene and pentene olefins used in refinery processes.

Our Emtrol-Buell brand has supplied more FCC Cyclones to refineries and petrochemical plants worldwide than any other supplier, so our experience in this area is unequaled. Our FCC Cyclones are designed to enhance separation efficiency, accommodate increased catalyst loading, and are tailored to meet the application needs of refineries and petrochemical plants.

We custom-engineer the following products at the highest quality:

  • FCC Cyclones – Patented Beam Hanger Support System
  • FCC Cyclones – Reactor
  • FCC Cyclones – Regenerator
  • FCC Cyclones – Third Stage Separator Systems
  • FCC Cyclones – Fourth Stage & Catalyst Hopper Cyclones
 FCC Cyclones – Third Stage Separator Systems

Third Stage Separator Systems include cyclones, a containment vessel, an underflow system, catalyst storage and evacuation.

Unlike traditional third stage units designed to eliminate particles >10 micron diameter and high inlet and outlet velocities, characterized by a large number of small cyclone, Emtrol-Buell brand Third Stage Separator Systems are designed to collect as much catalyst as possible while limiting system erosion and catalyst attrition.

We utilize a pressure vessel to contain fewer, larger diameter, high efficiency cyclones sized to maintain inlet velocity (with refractory lined cyclones, erosion on cyclone surface is reduced to an acceptable level).

Unlike other systems, our technologies do not require underflow for proper operation, as solids can be discharged directed through a valve. From the final collection hopper, the fines can be off-loaded to a truck or disposal container.

By designing and building trustworthy, innovative hardware for over 120 years, Emtrol-Buell has lead the way in modernizing refining equipment. Businesses that employ Emtrol-Buell FCC Cyclone solutions to process heavy petroleum utilize painstakingly designed equipment that exceeds all other products on the market. We design and build state-of-the-art processing equipment that operates continually and faithfully. This attention to detail is how we ensure the standard of performance of a crucial piece of equipment in the petroleum refining process.

It is important that your facility employs the most advanced systems to meet the exacting industry standards and avoid possible issues that can stop the oil refining process. Never settle for anything but finest in the industry. Emtrol-Buell leads in manufacturing and providing custom-designed Cyclone solutions to refineries and petrochemical plants on a global scale.

Emtrol-Buell builds better FCC Cyclone resources for every part of the refining industry so you can apply better technology from beginning to end. We provide custom equipment perfectly designed for your unique application. We make ideal equipment for any and all refineries. When picking a brand for your refinery’s equipment needs, pick the industry innovator that provides more FCC Cyclone units to refineries and plants than any other institution. You should be proud of the equipment you use. Choose Emtrol-Buell.

Features & Benefits

  • Enhanced aspect ratio of the cyclone inlet
  • New crossover duct design
  • Minimized use of edge bars in the refractory linings
  • Standard or complex designs
  • Dust hopper and lined dipleg stub designs that enhance catalyst discharge while decreasing erosion effects
  • Low Total Cost of Ownership
  • Maximum performance and efficiency
  • High reliability
  • Enhanced to increase separation efficiency
  • Premium quality material construction to withstand severe operating conditions

Islandia, NY, USA

Phone: 631-582-9700, ext. 211


Lebanon, PA, USA

Phone: 717-274-7258


United Kingdom

Phone: 44-1480-475071


Scarborough, ON, Canada

Phone: 416-287-6606