MAXCEL® 740

Spherical, promoted catalyst used as a guard layer in Claus catalyst reactors to reduce the oxygen content of the reactor inlet process gas. Reducing the oxygen content of the reactor inlet process gas will decrease sulfate formation on the activated alumina Claus catalyst thereby preserving the catalytic activity of the activated alumina Claus catalyst. Maxcel 740 is typically installed as a top layer in the second and third Claus catalyst reactors, especially in units with direct/fired reheaters.

Typical Applications

Claus sulfur recovery units

Benefits at a glance

Spherical, promoted catalyst used as a guard layer in Claus catalyst reactors to reduce
the oxygen content of the reactor inlet process gas. Reducing the oxygen content of the
reactor inlet process gas will reduced sulfate formation on the activated alumina Claus
catalyst thereby preserving the catalytic activity of the activated alumina Claus catalyst.
Maxcel 740 is typically installed in the second and third Claus catalyst reactors, especially
in units with direct/fired reheaters.

Product Details & Documents

Further Information

Storage:

The material is stored in its original containers/packaging in a dry, covered location protected
from the ambient environment
• The material is protected from direct exposure to sunlight and rain (prolonged exposure to
direct sunlight may degrade the packaging)
• The material is not subjected to temperatures exceeding 450°F/230°C while in storage
• The material is stored elevated off the ground to ensure that there is no exposure to liquid
water
• Once the material is loaded into the vessel, a thorough nitrogen purge is recommended to
remove excessive free moisture
• Desiccant products intended for regenerative service will require a complete thermal
regeneration cycle (in TSA service) or several pressure swing cycles (in PSA service) before full
activity is restored

Packaging:

2,000 lbs (907.2 kg) supersacks
steel drums available

Shelf life:

5 years in original packaging stored in a dry, covered location

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