Calculator
Example Data Table
| Feed Mass (g) | Target % | Organic Volume (mL) | Density (g/mL) | Purity % | Condensate (g) | Distillate (mL) | Time (min) | Pure Mass (g) | Recovery % |
|---|---|---|---|---|---|---|---|---|---|
| 500 | 2.8 | 9.6 | 0.91 | 94 | 780 | 820 | 95 | 8.1984 | 58.56 |
| 750 | 1.9 | 11.4 | 0.89 | 92 | 960 | 1015 | 120 | 9.3312 | 65.48 |
Formula Used
1. Theoretical target mass (g)
Feed Mass × (Target Fraction ÷ 100)
2. Collected organic mass (g)
Collected Organic Volume × Organic Density
3. Actual pure mass (g)
Collected Organic Mass × (Purity ÷ 100)
4. Recovery (%)
(Actual Pure Mass ÷ Theoretical Target Mass) × 100
5. Process loss (g)
Theoretical Target Mass − Actual Pure Mass
6. Yield per gram feed (g/g)
Actual Pure Mass ÷ Feed Mass
7. Condensate to oil ratio
Condensate Mass ÷ Actual Pure Mass
8. Distillate concentration (g/mL)
Actual Pure Mass ÷ Total Distillate Volume
9. Productivity (g/h)
(Actual Pure Mass ÷ Distillation Time in Minutes) × 60
How to Use This Calculator
- Enter the starting feed mass used for the batch.
- Enter the estimated percentage of target compound in the feed.
- Add the measured organic phase volume after separation.
- Enter the target compound density for mass conversion.
- Enter purity from GC, HPLC, or another assay method.
- Enter steam condensate mass and total distillate volume.
- Enter total distillation time in minutes.
- Click the calculate button to show yield results above the form.
- Use the CSV or PDF buttons to export the batch summary.
Steam Distillation Yield Guide
Why this calculator helps
Steam distillation is widely used to isolate volatile compounds from plant material and other heat sensitive mixtures. Yield tracking is essential in lab work and pilot production. A good steam distillation yield calculator helps you compare batches, monitor recovery, and judge process consistency. It also helps convert raw collection data into useful production metrics.
What the calculation measures
This calculator estimates the theoretical target mass from feed composition. It then converts the collected organic phase into mass by using density. Next, it adjusts that mass with purity. This produces a more realistic pure yield value. Recovery percentage then compares real recovered mass against the theoretical starting amount.
Why purity correction matters
Many operators report only the organic layer volume. That can overstate true output. A purity corrected approach is better. It accounts for water carryover, co-distilled impurities, and incomplete separation. This gives a more reliable value for research notes, scale-up reviews, and quality records.
How to interpret process efficiency
The condensate to oil ratio helps you judge steam efficiency. A very high ratio may suggest excessive steam use, weak charge composition, or poor separation. Distillate concentration shows how much target material is present per milliliter of distillate. Productivity in grams per hour helps compare run speed across different batch sizes.
Best practice for accurate results
Use measured density for the main recovered compound or the dominant oil fraction. Use current purity data from a validated method. Record total run time from steady steam introduction to collection end. Keep feed preparation consistent. When you compare batches with the same method, this calculator becomes a strong tool for optimization, reporting, and troubleshooting.
FAQs
1. What does steam distillation yield mean?
It is the amount of target volatile material recovered after steam distillation. In this calculator, yield is refined further by density and purity correction for a more realistic result.
2. Why is purity included in the calculation?
Purity correction removes the effect of non target material in the collected fraction. This gives a better estimate of the true recovered compound instead of only the crude organic phase mass.
3. Can I use this for essential oil recovery?
Yes. It works well for essential oil batches when you know feed mass, collected oil volume, oil density, purity estimate, condensate mass, and total run time.
4. What if I do not know the target fraction in feed?
You can estimate it from prior assay data, literature values, or small test runs. More accurate input gives more meaningful recovery percentages and process loss values.
5. Why is condensate to oil ratio useful?
It shows how much condensed steam was used relative to recovered product. This helps compare energy and steam use between batches and may reveal inefficient operating conditions.
6. What is the difference between recovery and yield per feed?
Recovery compares actual pure mass to theoretical target mass. Yield per feed compares actual pure mass to total starting feed mass. Both metrics are useful, but they answer different questions.
7. Can this calculator support batch comparison reports?
Yes. The export options help save results in CSV or PDF format. That makes it easier to document trends, compare batches, and maintain laboratory records.
8. Does this replace analytical testing?
No. It supports process calculations only. Reliable yield analysis still depends on good sampling, correct density data, and dependable purity measurements from suitable analytical methods.