C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 9/16 (2006.01)
Patent
CA 2111019
ABSTRACT A method for the use of a new coke suppressant, tripiperidinophosphine oxide (TPyPO), is disclosed. Tripiperidinophosphine oxide (TPyPO) has been tested with regard to coke suppression performance and potential side effects. In summary, the new product is an excellent coke suppressant, causes non-detrimental corrosion under conditions designed to simulate the convection section, and yields non-detrimental levels of phosphine (PH3), a low boiling by-product that is harmful to catalyst beds which exist downstream of the furnace.
Poindexter Michael K.
Tong Youdong
Nalco Chemical Company
Smart & Biggar
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