Method for refining or upgrading hydrocarbons with analysis
This patent describes a process for refining or upgrading a petroleum hydrocarbon feed, in which samples of hydrocarbon oil produced in the process are each chromatographically analyzed to determine the level present of at least one component in the oil, and in which the operation of the process is controlled in dependence upon the determined level present of the at least one component. It comprises passing a mixture of the hydrocarbon oil and a carrier phase in contact with a first and second stationary phase over a time interval so as to retain the components of the hydrocarbon oil on the stationary phases wherein the first stationary phase comprises surface hydroxyl groups substantially all of which have been substantially fully functionalized with a charge transfer functionally selected from the group consisting of trinitoanilino propane, tetrachlorophthalimido propane, dinitrobenzoyl glycidyl propane, and tetranitrofluorenone and the second stationary phase comprises surface hydroxyl groups at least a portion of which have been substantially fully functionalized by a functionality selected from the group consisting of aminopropyl, cyanopropyl, nitropropyl, and a combination thereof; passing in contact with the first and second stationary phases a mobile phase of a weak solvent having a solubility parameter of 7.0 to 7.8 cal{sup 0.5}/cm{sup 1.5} for a second time interval sufficient to elute saturates and mono aromatics from the first stationary phase.
- Assignee:
- Exxon Research and Engineering Co., Florham Park, NJ (United States)
- Patent Number(s):
- US 5076909; A
- Application Number:
- PPN: US 7-572583
- OSTI ID:
- 5666372
- Resource Relation:
- Patent File Date: 27 Aug 1990
- Country of Publication:
- United States
- Language:
- English
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