Decoke enhancers for transfer line exchangers

Details Decoke enhancers for transfer line exchangers Decoke enhancers for transfer line exchangers

C - Chemistry, Metallurgy

10

G

C10G 9/16 (2006.01)

Patent

CA 2423211

In a steam cracking operation she formation of coke is a problem which needs to be overcome. While significant work has been done on decoking of furnaces tittle work has been done regarding transfer line exchangers. Coking of transfer line exchangers (TLE) may be reduced by injection of a solution containing at least one group 1 or 2 metal dichromate or dichromate and one or more of a group 1, 2 or 7 metal carbonate into the TLE:

Dans le vapocraquage, la formation de coke est un problème à surmonter. Alors que des efforts importants ont été réalisés pour le décokage des fours, peu ont été faits concernant les échangeurs de conduites de transfert. La cokéfaction de ces échangeurs peut être réduite par injection d'une solution contenant au moins du dichromate métallique ou du dichromate du groupe 1 ou 2, et un ou plusieurs éléments de carbonate métallique du groupe 1, 2 ou 7 dans lesdits échangeurs.

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