PATENT

2864. ----- [RURHCHEMIE, A.G.] [Catalyst Regeneration.] French Patent 899,044. Kainer, no date, p.264.

Deposit of C on the catalyst in the catalytic cracking of synthetic oils over bleaching-earth catalysts is avoided by subjecting the catalyst to a periodic oxidizing regeneration.  The cracking and regenerating periods are so arranged that a thermal equilibrium exists and the heat requirement in the cracking period is equal to the heat of oxidation set free during the regeneration.