Controlling a distillation operation to maintain specified product purities with optimum feed enthalpy
United States Patent 3356590
US Patent References:
Fractionator feed control
- - 2933900
Automatic process control
- - 3039687
Sequential analog computing apparatus
- - 3143643
Fractionation control system
- - 3150064
Statistical quality-control method and apparatus
- - 3151237
Fractionator feed control
- - 2933900
Automatic process control
- - 3039687
Sequential analog computing apparatus
- - 3143643
Fractionation control system
- - 3150064
Statistical quality-control method and apparatus
- - 3151237
Inventors:
Johnson, Merion L.
Publication Date:
12/05/1967
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Assignee:
PHILLIPS PETROLEUM CO
Primary Class:
Other Classes:
700/44, 702/23, 203/2, 700/282, 700/67, 203/3, 203/DIG.018, 700/274, 203/23, 203/DIG.009, 700/270
International Classes:
B01D3/42
US Patent References:
| 3227631 | Automatic feed forward and feed backward process control system |
Foreign References:
| FR1177743A |