Draw rate signal generator

Mineral oils: apparatus – Vaporizing – Automatic control


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202160, 203 1, 203 3, 203DIG19, 208DIG1, 208350, 364116, 364501, 422 62, 422119, B01D 342, G06F 1546, G06G 758




A draw rate signal generator for an atmospheric crude distillation unit receiving crude oil and providing streams 1 through 5 and a reduced crude oil includes flow rate sensors sensing the flow rates of the crude oil and of streams 1 through 4 and providing corresponding signals. Analyzers sample the crude oil and provide signals corresponding to the 35% point temperature, the API gravity and the vapor pressure of the crude oil. End point analyzers sample streams Nos. 1 and 3 and provide signals representative of the end point temperatures of streams Nos. 1 and 3, respectively. 50% point analyzers sample streams 2, 3 and 4 and provide signals corresponding to the 50% point temperatures of streams Nos. 2, 3 and 4, respectively. A circuit connected to the sensors, to the crude analyzers, to the end point analyzers and to the 50% analyzers provide signals corresponding to the draw rates for streams Nos. 1 through 5 in accordance with signals from the sensors and analyzers.

patent: 3259554 (1966-07-01), Constantikes
patent: 3394053 (1968-07-01), Shinskey
patent: 3546109 (1970-12-01), Woodle
patent: 3964975 (1976-06-01), Harrisons et al.
patent: 3997432 (1976-12-01), Louvel et al.
patent: 4161427 (1979-07-01), Sequeira et al.
patent: 4166770 (1979-09-01), Anderson et al.


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