Method for on-line monitoring of wax crystallization

Details Method for on-line monitoring of wax crystallization Method for on-line monitoring of wax crystallization

2007-10-19

2011-10-04

Griffin, Walter (Department: 1774)

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

C208S027000, C208S030000, C208S031000, C208S033000, C208S035000, C196S014500, C377S011000, C250S222100, C356S335000, C356S336000, C356S337000, C356S338000, C356S339000, C356S340000, C356S341000, C356S342000, C356S343000

Reexamination Certificate

active

08029661

ABSTRACT:
The determination of wax crystal particle size and population is used to monitor the performance of wax crystallizers used in lubricant oil processing using solvent dewaxing. The wax crystal particle size is monitored using online measurements. The information obtained from on-line monitoring is then used to control crystallization in the dewaxing equipment in order to optimize performance of the dewaxing units.

REFERENCES:
patent: 3764517 (1973-10-01), Bodemuller, Jr.
patent: 3773650 (1973-11-01), Hislop et al.
patent: 3972779 (1976-08-01), Harrison
patent: 4885062 (1989-12-01), Harrison et al.
patent: 2006/0173230 (2006-08-01), Chang et al.

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