Bio-Pyro Oils & Fuels Characterization
The matrix on this page maps standard characterization techniques for bio-pyro oils and fuels to related instruments available from BFAC-affiliated user facilities. Further, it provides brief descriptions of the value generated by the characterization routine for bio-oil/bio-fuel synthesis as well as upgrading in a refinery setting. Relevant ASTM procedures associated with the specific characterization routine are also listed.
| Characterization Group | Relevant Instrument(s) | Managing Facility | Value for Bio-Fuel Synthesis & Refining | Relevant ASTM Analogs |
| Volatiles & Compound Profiling | Thermo Scientific Q-Exactive LC-MS | MSF / SLMBR |
Synthesis: Identifies exactly which chemical building blocks your reaction is creating, showing you if your catalyst is making the right fuel precursors. Refining: Tracks how effectively hydrotreating is stripping away problematic oxygen and nitrogen atoms to turn crude bio-oil into clean hydrocarbons. |
ASTM D7524, ASTM D2425 |
| Detailed Hydrocarbon Speciation | ThermoFisher GCxGC VUV | E-RISE Lab |
Synthesis: Decodes the exact molecular architecture of your fuel by cleanly separating complex mixtures into distinct classes (e.g. Paraffins, Isoparaffins, Olefins, Naphthenes, Aromatics) in a single run. Even when different fuel molecules exit the column at the identical second, their unique light-absorption "fingerprints" let you tell them apart perfectly. Refining: Allows refinery engineers to map out exactly how much performance-boosting alkane chains versus smoke-heavy aromatic ring structures are present, giving them the absolute composition breakdown needed to hit regulatory fuel targets without guesswork. |
ASTM D8071 |
| Biofuel Property Prediction | ThermoFisher GCxGC VUV |
E-RISE Lab |
Synthesis: Calculate predicted values for sample physical and chemical properties such as density, viscosity, DCN, heat of vaporization. Refining: Accelerates refinery optimization loops. |
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| Rapid Compound Screening | Advion ExpressIon / CSM Mass Spectrometer | MSF |
Synthesis: Acts as a fast "checkpoint" to see if your reaction worked or if your fuel blend is contaminated before wasting time on deeper testing. Refining: Quickly screens raw versus processed fuel batches to confirm if heavy molecules are breaking down. |
Routine process control monitoring |
| Heavy Fraction & Asphaltene Profiling | Waters rapifleX TOF/TOF (MALDI) | MSF |
Synthesis: Reveals the heavy, tar-like compounds formed by unwanted side-reactions so you can adjust cooking times or temperatures to minimize them. Refining: Helps engineers predict if heavy "ends" will gum up refining equipment or block flow lines during processing. |
Petroleomics heavy-ends mapping |
| Molecular Weight & Storage Aging | Agilent-Wyatt & Tosoh EcoSEC GPC-MALS | SLMBR |
Synthesis: Shows if your recipe is producing consistent, targeted molecule sizes rather than random, messy chemical chains. Refining: Measures fuel shelf-life by proving whether the fuel will stay stable during storage or slowly clump together into engine-clogging sludge. |
ASTM D5185 / D7875 (Modified) |
| Functional Groups & Acidity Indicators | Bruker Alpha ATR-FTIR | SLMBR |
Synthesis: Gives a quick snapshot of the fuel's chemical families (like acids or alcohols) to confirm your synthetic process is heading in the right direction. Refining: Checks how acidic the fuel is. This tells refiners if the liquid will corrode metal pipes and storage tanks, or if it requires deep chemical neutralization. |
ASTM E2412, ASTM D7371 |
| Boiling Point Distribution & Ash Content | TA Systems TGA (Thermogravimetric Analysis) | SLMBR |
Synthesis: Estimates how much usable fuel you can boil off versus how much useless, solid charcoal debris is left behind. Refining: Simulates a mini refinery tower. It maps out exactly how much of your bio-oil will turn into gasoline, diesel, or jet fuel when heated. |
ASTM D524, ASTM D482 |
| Cold Flow Properties & Phase Behavior | TA Systems DSC (Differential Scanning Calorimetry) | SLMBR |
Synthesis: Evaluates fundamental molecular alignment to see if your synthetic fuel molecular structure is prone to early freezing. Refining: Finds the exact temperature where the fuel begins to cloud or form wax crystals, ensuring planes and trucks won't stall in freezing winter weather. |
ASTM D4419, ASTM D6751 |
| Kinematic Viscosity & Flow Hydraulics | TA Systems Rheometer | SLMBR |
Synthesis: Ensures the synthesized fuel matches the thickness profiles of traditional petroleum so it behaves correctly in standard infrastructure. Refining: Tells refiners how much energy and pressure it will take to pump the bio-crude through refinery pipes at different temperatures. |
ASTM D445, ASTM D2162 |
| Aromaticity & Hydrocarbon Group Types | High-Res Solution NMR (Bruker 400, 500, 700 MHz) | NMR Facility |
Synthesis: Measures the ratio of carbon to hydrogen. More hydrogen means a higher energy content, proving if your synthesis method creates a high-performance fuel. Refining: Tells you if the fuel will burn cleanly (high Cetane/Octane indicators) or soot heavily, helping refiners optimize the blending recipe for commercial sale. |
ASTM D5292 |
| Solid Residue & Catalyst Deactivation | Solid-State NMR (Bruker 400 WB, 700 MHz with MAS) | NMR Facility |
Synthesis: Examines the solid carbon byproduct (char) to learn how to change your reaction conditions and prevent losing valuable carbon to waste. Refining: Peeks inside the pores of refining catalysts to see exactly how carbon build-up is "choking" or poisoning them, letting you design longer-lasting catalysts. |
Catalyst structural fouling frameworks |