Method for characterizing the coking tendencies of baseoils and additive-treated oils
This patent describes a method of characterizing the coking tendency of baseoil. The method consists the steps of: (a) subjecting the baseoil to conditions which accelerate asphaltene coke precursor formation in the baseoil, and (b) characterizing the coking tendency of the baseoil by determining (i) the onset and progression of asphaltene coke precursor formation as a function of time or (ii) the progression of asphaltene coke precursor formation as a function of time, wherein a faster onset of asphaltene coke precursor formation and a higher rate of asphaltene coke precursor formation or a higher rate of asphaltene coke precursor formation indicates a higher coking tendency of the baseoil than a slower onset of asphaltene coke precursor formation and a lower rate of asphaltene coke precursor formation or a lower rate of asphaltene coke precursor formation.
- Assignee:
- Exxon Chemical Patents, Inc., Linden, NJ
- Patent Number(s):
- US 4849361
- Application Number:
- PPN: US 6876462A
- OSTI ID:
- 5386733
- Resource Relation:
- Patent File Date: 20 Jun 1986
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pretreatment for reducing oxidative reactivity of baseoils
Mechanisms of coke formation and fouling in thermal cracking