Infrared spectroscopy for carboxylic acid and phenol determination in biocrude and its derived products

Abstract

A feasible tool for determination of TAN and carboxylic/phenolic compound content (molar and wt%) was developed based on IR analysis of biocrude oil and its derived upgraded products as well as their distillation cuts.

Physical and Simulated Distillation of Oxygen-Rich Biocrudes

“… a ASTM D664 (ref ). b wt % O determined by difference to wt % (C + H + N); average from two replicas reported. c Carboxylic TAN: 42, Phenolic TAN: 146 (Phenolic equivalence point clearly observed, as discussed before). …”

“… c Carboxylic TAN: 42, Phenolic TAN: 146 (Phenolic equivalence point clearly observed, as discussed before). …”

“…Because of the preceding, biocrudes are commonly hydrodeoxygenated for achieving miscibility. In our laboratory, parametric studies involving hydrotreatment (HDT) and hydrotreating followed by catalytic steam cracking (HDT-CSC) are a current topic of research with in-house developed catalysts, as published recently . As proposed in Section , RF materials containing 5.0 and 10.0 wt % oxygen were prepared, closer to the values spanned by the HFO samples of interest (Table ).…”

“…This research group has been carrying out research on Hydrofaction wood chip-derived biocrudes produced under water supercritical condions, − exploring their upgrading under different process schematics. Oxygen content for Hydrofaction oils typically is about 12 wt %.…”

Proton Nuclear Magnetic Resonance (1H-NMR) Methodology for Monolefin Analysis: Application to Aquaprocessing-Upgraded Bitumen

“…One bench top unit whose schematic has been presented before , was used for upgrading the studied bitumen. For the present experiments, the reactor was packed with the NiCeMo-supported catalyst described before; , an experimental formulation was selected for the tests .…”