Elemental analysis is a crucial process control tool for the refining process: XRF is employed as a technique to quantify Sulfur from the crude oil to the liquid streams and in the refined products as well as to quantify Ni, Fe and V in crude oils: Since XRF can analyze the sample directly without digestion or dilution it is the technique is widely employed as process tool: Sulfur levels in fuels are regulated, compliance analysis can be performed with XRF by applying ASTM, ISO or other national norms such as ASTM D2622 , ISO XXX. Residual fuel oils as well as solid petcoke can be analyzed as well directly.
For the lowest detection limits as well as for testing P, Pb , S,Ni,V and many more elements in a laboratory setting the S8 TIGER WDXRF units are used by many refineries.
Smaller refineries and for regions where regulatory compliance for Sulfur can be done with EDX (e.g. ISO and DIN methods) BRUKER offers the S2 RANGER EDX with PETRO-QUANT.