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Explosion during distillation in a solvent recovery plant ...

Jul 01 1998 · The plant completely destroyed by the explosion consisted of a horizontal boiler 6 m long 2 m diameter (19 m 3 capability) of a 20 m high 0·8 m diameter plate column two diathermic oil heat exchangers and two 3 m 3 capability containers for the distillate. The control system was an inlet thermocouple measuring temperature oil a reactor ...

The Design of an Integrated Crude Oil Distillation Column ...

The residue from the atmospheric distillation column cannot be further heated to their boiling points at atmospheric pressure due to: (i) severe thermal cracking of the oil (ii) overstraining (fatigue stress) on the furnace to provide the necessary heat needed (being the major source of heat) (iii) un-reliance on the additional re-boiler ...

Thermal Cracking - an overview | ScienceDirect Topics

Thermal cracking also known as pyrolysis consists of heating the polymer in an inert atmosphere promoting macromolecules thermal bond scission to a variety of low molecular weight hydrocarbons i.e. a liquid fraction that includes paraffins olefins naphtenes and aromatics a volatile fraction and a solid residue. 63 75 Depending on the ...

Vacuum Distillation - MEI

The residue from the atmospheric tower contains gas oils that are not recovered. The Crude Unit heater outlet temperature is limited due to the concerns over thermal cracking. Thus the residue from the bottoms of the Atmospheric Distillation unit can be piped to another distillation column operated under vacuum (0.4 PSI) called a Vacuum ...

(PDF) 'The Demetallization of Residual Fuel Oil and ...

In this work we used the vacuum distillation residue from an Iranian heavy crude oil refinery in a solvent deasphalting (SDA) process using different temperatures (60 to 120 °C) pressures (5 to ...

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