NREL develops laboratory analytical procedures (LAPs) for the analysis of raw and upgraded pyrolysis bio-oils. These standard procedures have been validated and allow for reliable bio-oil analysis.


Procedures

Corrosivity Screening of Pyrolysis Bio-Oils by Short-Term Alloy Exposures

This method allows for rapid screening of a bio-oil’s corrosivity without the need for complex equipment and long-term exposures. A robust and repeatable method for assessing the corrosivity of bio-oils is necessary to remove materials degradation as an obstacle to research, upgrading, use, and storage of bio-oils.


Elemental Analysis of Bio-Oils by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES)

This procedure covers the preparation and analysis of fast pyrolysis and catalytic fast pyrolysis bio-oils. It includes two methods for quantification of inorganic elements by inductively coupled plasma optical emission spectroscopy (ICP-OES). Procedure A uses microwave-assisted digestion with concentrated nitric acid, and Procedure B is an organic ICP-OES method using a diglyme solvent.