Expand Fluidized Catalytic Cracker Capacity and Conversion With Oxygen Enrichment

The achievable capacity or conversion in a refinery's fluid catalytic cracking unit (FCCU) is often restricted by the maximum air blower capacity or regenerator gas velocity. Oxygen enrichment is a reliable, low-cost option for achieving capacity increases up to 40% or conversion increases of one to two points while avoiding significant capital outlays or unit modifications.

Benefits of FCC Oxygen Enrichment
The oxygen enrichment of an FCCU involves the addition of a controlled flow of gaseous oxygen into the combustion air main. The additional oxygen increases the coke-burning capacity of the regenerator and provides various benefits.

Overcomes Air Blower Capacity Limitation

Overcomes Regenerator Velocity Limitation

Improves Yield

Maintains Capacity on a Seasonal Basis

Reduces Flue Gas Velocity

Improves Control

Permits Use of Heavier Feedstocks

Technical and Engineering Services
In addition to supplying our customers with oxygen and on-site storage facilities, Air Products offers a wide range of technical and engineering services.

Flow Control Engineering
Air Products will design and build an oxygen flow control system that will be custom-built to the refiner's specifications and requirements.

Technical Evaluation and Economic Analysis
After completion of an FCC oxygen enrichment questionnaire, Air Products will perform a technical evaluation of the refiners FCC operation with oxygen enrichment.

In-Plant Test Program
Air Products can perform an in-plant test to show the benefits of oxygen enrichment to a refiner.

Start-Up Assistance
Air Products will provide start-up assistance for the in-plant test or for a permanent system.

Air Products and Chemicals, Inc., 7201 Hamilton Boulevard, Allentown, PA 18195-1501. Tel: 610-481-4911; Fax: 800-880-5204.