Mineral oils: processes and products – Fractionation – Distillation
Patent
1985-08-23
1987-06-16
Metz, Andrew H.
Mineral oils: processes and products
Fractionation
Distillation
208356, C10G 700, B01D 342
Patent
active
046734902
ABSTRACT:
A more effective and efficient method for separating the components of crude oil, particularly off-gases and LSR naphtha and heavy naphtha, is disclosed. The crude oil is heated and fed to a prefractionator that operates at relatively high pressure and uses a multiple condenser/accumulator overhead system for collecting and separating off-gases and LSR naphtha while avoiding the problems of water condensation in the top section of the prefractionator and the need to compress overhead vapors to fuel gas system pressure. After heating, the bottoms from the prefractionator are fed to an atmospheric crude tower to recover desirable components such as diesel, kerosene, atmospheric gas oils and reduced crude. The overheads of such crude tower are processed through a set of overhead condensers/accumulators for collecting the small amounts of naphtha and sending them to a naphtha stripper column for further recovery and purification.
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Johnson David B.
Kleinschrodt Frank J.
Monday Richard D.
Subramanian Mahadevan
Caldarola Glenn A.
Fluor Corporation
Metz Andrew H.
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