Flavors, Fragrances & Aroma Chemicals worked example

Solvent Loss with solvent evaporation loss rate of 16 kg / hr: a worked example

Push solvent evaporation loss rate up to 16 kg / hr and the picture changes. This example computes every intermediate figure at that operating point. Use it for ethanol, propylene glycol, triacetin, DPG, water, carrier oil, or other volatile/transfer-loss materials during blending, filtration, or packaging.

The inputs for this scenario

  • Solvent evaporation loss rate: 16 kg / hr (raised for this scenario; the documented default is 6.5)
  • Open vessel handling and processing time: 9 hr (unchanged)
  • Solvent or carrier unit cost: 2.8 $ / kg (unchanged)

Working through the calculation

  • Applying the documented formula (Solvent Loss consumed = solvent loss rate × open handling or processing time) to the inputs above produces each figure below.
  • At this operating point the engine returns 144 units for solvent loss quantity, the number this scenario is built around.
  • At this operating point the engine returns 403 $ for solvent loss cost.
  • At this operating point the engine returns 9 hr for open handling or processing time.
  • At this operating point the engine returns 2.8 $ / unit for solvent or carrier cost.

How this compares with the baseline

  • Against the tool's baseline example, where solvent evaporation loss rate sits at 6.5 kg / hr and the headline result is 58.5 units, this scenario comes in 146% above the baseline at 144 units.
  • It multiplies a measured solvent loss rate by open handling time to get kilograms lost, then multiplies by carrier cost to get the dollar cost of that loss per run. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Solvent Loss quantity: 144 units (headline result)
  • Solvent Loss cost: 403 $
  • Open handling or processing time: 9 hr
  • Solvent or carrier cost: 2.8 $ / unit

Run it with your numbers

  • Every input above is editable in the live Solvent Loss calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.