PROCESS FEATURES

CONSER offers technology for the complete design (Basic Process Book) of Vacuum units.
In addition to the design of new units, typical Vacuum distillation projects carried-out by CONSER include the following:

  • Revamping and modernization studies
  • Optimization of TBP Cut Point vs. Con Carbon Residue and metal content by proprietary mathematical model
  • Selection of wet or dry operation based on Client’s requirements
  • Straight-run or Visbroken tar feedstocks
  • Deep cut-point technology

REFERENCES

Number of Projects 60
Number of Units     23
Capacity Range     From 10000 to 120000 BPSD

PROCESS DESCRIPTION

Straight run residue or VSB tar feedstock is preheated by heat recovery from product streams in an exchanger train before entering a furnace where temperature is typically increased to 410-430°C.
Heater effluent enters the Vacuum column where LVGO and HVGO are recovered as side steams while producing a Vacuum Residue.
Typical distillate yields range from 45 to 60% depending on feedstock characteristics and operating conditions.

CASE HISTORY

Project type:
Revamping
New Unit
Capacity, BPSD
75000
92000
Crude
M. East
M. East
Operation From dry to wet
Wet
TBP Cut Point, °C
From 535 to 565
595
Column Diameter, mm
9200
10400

Results

Distillates Yield
VGO Quality
From 48 to 60%
62%
Metals, ppm
3.2
3.5
CCR, %
0.66
1.5

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