B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
202/55
B01D 3/26 (2006.01) B01D 3/42 (2006.01) F25J 3/02 (2006.01)
Patent
CA 1091614
PRESSURE RESPONSIVE FRACTIONATION CONTROL Abstract of the Disclosure In a fractionation system in which pressure fluctuations within the fractionation vessel can result in alteration of the fractionator product composition, fractionation column pressure is monitored and converted to a temperature requirement signal representative of the temperature required within a preselected portion of the fractionation column on order to provide the desired product constituent distribution. The heat input to the fraction- ation column is controlled in response to the temperature requirement signal, corrected as necessary by actual analysis of the product. In a preferred embodiment, control of a demethanizer column in a cyrogenic natural gas liquids separation process can be practiced advantageously.
291279
Buss Russel A.
Smith Dexter E.
Stewart William S.
Osler Hoskin & Harcourt Llp
Phillips Petroleum Company
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