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Fatty-ester vacuum fractionation

Vacuum distillationBiodieselOleochemicals
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Biodiesel methyl esters (C16 / C18) split at 0.05 bar — vacuum keeps the bottoms under 515 K; near-total C16 recovery overhead and ~98% C18 in the bottoms (the two components' relative volatility caps bottoms purity there — more stages/reflux do not push it further). From the ChemSep casebook (Fatty_Acids, as methyl esters).

The flowsheet

The solved topology — every unit op's real duty, conversion, or split, read straight off a genuine converged solve.

FEED
feed
dist
btms
Vaccol
C16
C18

The stream table

Every stream's flow, temperature, pressure, and composition — real converged numbers, not placeholders.

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