Method of transferring catalyst in a reaction system

Details Method of transferring catalyst in a reaction system Method of transferring catalyst in a reaction system

2007-05-29

2007-05-29

Wood, Elizabeth D. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

C502S208000, C502S209000, C502S210000, C502S211000, C502S213000

Reexamination Certificate

active

10981269

ABSTRACT:
The invention is directed to methods of transfering catalyst particles into and within reaction systems. The reaction systems are those that use catalysts that comprise molecular sieves, particularly metalloaluminophosphate molecular sieves, especially metalloaluminophosphate molecular sieves which are susceptible to loss of catalytic activity due to contact with water molecules. The transfer methods provide appropriate mechanisms for transporting catalyst into and within a reactor to protect against loss of catalytic activity that can occur due to contact with water molecules.

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Mees et al, “Improvement of the Hydrothermal Stability of SAPO-34”, Chem. Commun., 2003, (1), 44-45, no month available.

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