EP 0601609 A1 19940615 - Phosphoric triamide coking inhibitors.
Title (en)
Phosphoric triamide coking inhibitors.
Title (de)
Phosphorsäure-Triamide als Koksbindung-Inhibitoren.
Title (fr)
Triamides d'acide phosphorique inhibiteurs de dépÔt de coke.
Publication
Application
Priority
- US 7145893 A 19930602
- US 99078292 A 19921210
Abstract (en)
Inhibiting coke formation on heat transfer surfaces used to heat or cool a petroleum feedstock at coke-forming conditions. The heat transfer surfaces are treated with an effective amount of a phosphoric amide (I) to inhibit coke formation on the heat transfer surfaces. The tripiperidinophosphine oxide is essentially free from contributing to corrosion and from producing catalyst-impairing by-products.
IPC 1-7
IPC 8 full level
C10G 9/16 (2006.01)
CPC (source: EP)
C10G 9/16 (2013.01)
Citation (search report)
- [A] US 4542253 A 19850917 - KAPLAN MORRIS [US], et al
- [A] EP 0326729 A1 19890809 - BETZ EUROP INC [US]
- [A] EP 0271998 A1 19880622 - BETZ EUROP INC [US]
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
EP 0601609 A1 19940615; EP 0601609 B1 19990127; DE 69323285 D1 19990311; DE 69323285 T2 19990812
DOCDB simple family (application)
EP 93120003 A 19931210; DE 69323285 T 19931210