Crude assay
TBP yields from IBP through the atmospheric range, typically to about 400°C AET.
ASTM D2892 True Boiling Point Distillation Apparatus
ASTM D2892 true boiling point distillation of crude petroleum. Full, mini, and micro systems built in Easton, MD.
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Who
Who this apparatus is for
Petroleum QC
Repeatable fraction collection with automatic vacuum control, AET calculation, and a permanent record of every run.
Next cut: D5236
Heavy residue goes to the ASTM D5236 vacuum pot still. Combined D2892 / D5236 platform also available.
Petroleum QC labs and crude assay labs that need true boiling point yield data on crude petroleum and crude blends.
ASTM D2892 is true boiling point distillation of crude petroleum with a 15-theoretical-plate packed column and controlled reflux. Typically run to about 400°C atmospheric equivalent temperature (AET). The fractions map the same cuts a refinery expects from atmospheric and vacuum units.
This page is the apparatus. The method text lives at ASTM International. B/R Instrument builds the column, vacuum, fraction collection, baths, and PC control so a lab can run D2892 without assembling a custom still from parts.
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Models
What B/R ships for D2892
Full ASTM D2892
15-theoretical-plate packed column (Propak standard). Sample range about 0.5 to 60 liters depending on column diameter.
Request InfoMini
Small crude samples, 50 to 1000 ml, from IBP out to above 500°C on a single column.
Mini crude systemsMicro
Very small charges, 3 to 100 ml, IBP to above 500°C on a single column.
Micro crude systemsCombined D2892 / D5236
One platform for TBP and vacuum pot still. Automatic collection of up to 8 fractions per vacuum sequence.
Combined system
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Columns
ASTM D2892 column sizes (Propak)
| Diameter | Packed Height | Sample Range |
|---|---|---|
| 70 mm | 91 cm | 15-60 liters |
| 50 mm | 80 cm | 6-24 liters |
| 25 mm | 57 cm | 1.2-4.8 liters |
Columns also available with mesh packing (Goodloe) and real plate distillation columns. 15 theoretical plates standard.
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Questions
ASTM D2892 FAQ
What is ASTM D2892 true boiling point distillation?
ASTM D2892 is true boiling point distillation of crude petroleum with a 15-theoretical-plate packed column and controlled reflux. Typically run to about 400°C AET. See the TBP / D2892 note.
How does D2892 differ from D5236?
D2892 is TBP with a 15-plate packed column and reflux. ASTM D5236 is the vacuum pot still method for heavy hydrocarbon mixtures, typically into the 370-565°C AET region. Labs that run both can quote the combined system.
Quotation
Request ASTM D2892 Info
Sample size, column diameter, and whether you also need D5236.