Fat / Oil Splitting Simulator

Armaco Fat/ Oil Splitting simulator can design and evaluate, both direct high-pressure steam injection uni-tower Oil splitting columns as well as medium pressure Oil splitting columns, with indirect Limpet coil heating.

The program evaluates, all oils, refined and crude, from C6:18 Laurics to C18:22 mustard, including PFAD and Distillation residues for all operating conditions for the Fat/ Oil splitting process.

Output: The different outputs you get from the Armaco Fat/ Oil Splitting simulator are

  • PFD’S (Process Flow Diagrams) for splitting and distillation.
    • Equipment and line wise temperature profiles.
    • Moisture and Glycerine content of process streams
  • Distillation configurations, 2 column, single column, re-boiler or candles.
  • DOS as measured in the plant and seen by the operator
  • Distillation Yields / EFFECTIVE DOS
  • HP Steam and TF (Thermic Fluid) consumption / LP Steam Generation

                / Heat Exchanger duties in oil splitting and distillation.

Calculation Methodology:

A.   Degree of Split – DOS – Yields – Material Balance.

  1. Input Fat/ Oil Splitter Volume, Operating Temperature and Feed Thru-put and Specifications - AV, SV, UNSAP, MIV. In-built formulas calculate Molecular Wt of Fatty Acid, % Fatty Acids and % Glycerine.
  2. A reaction curve that plots Degree Of Split Vs Residence time is inbuilt in the program, developed through plant data, and batch autoclave data of Struzenegger & Strum up to 80% DOS.
  3. Reaction starting point feed AV/SV is placed on the curve. Reaction time in the fat/ Oil splitter is added and a first cut DOS obtained from the reaction curve.
  4. Reaction time is calculated using Density Vs Temperature equations for oil and water, inbuilt in the Armaco Fat/ Oil Simulator, accurately determining volumetric flow.
  5. DOS is adjusted for
    1. Oil Splitting column Temperature and Feed Molecular wt. These affect solubalisation of water in oil. Equations are input which relate rate of reaction to solubalisation. Solubility curves developed by Mills and McLain are used.
    2. Reverse reaction due to Glycerine carried over in CFA.
    3. Heat damaged feeds such as PFAD and Residues.
  6. ‘Effective DOS’ is calculated, factoring for Mono and Di Glycerides in Crude Fatty Acids (CFA), and polymerisation of unsaturated fatty acids.
  7. Effective DOS and AV of residue are used to calculate the yield and complete the material balance for the Splitting reaction.

B.   Temperature Profile

To evaluate an existing set-up, Crude Fatty Acid (CFA) exit temperature for a particular thruput is input to establish Heat Exchanger capability. The program extrapolates for other thru-puts and calculates heat duties.