Pyrolysis oil are affected by temperature, reaction time, algae species, algae concentration, reaction atmosphere, and catalysts, in subcritical water reaction conditions. Bio-oil typically requires significant additional treatment to render it suitable as a refinery feedstock to replace crude oil derived from petroleum, coal-oil, or coal-tar. Tar is a black mixture of hydrocarbons and free carbon obtained from a wide variety of organic materials through destructive distillation. Tar can be produced from coal, wood, petroleum, or peat. Wood-tar creosote is a colourless to yellowish greasy liquid with a smoky odor, produces a sooty flame when burned, and has a burned taste. It is
Flesh and Wood and explained, ""Flesh and Wood" was Barnes' attempt at an unplugged album, and featured duets with other Australian rock luminaries. While it contains some of Barnes' own material and some covers (including Cold Chisel's superb 'Flame Trees'), few songs here manage to match the originals; fewer still eclipse them. A competent album that shows a more sophisticated side to Barnes that was hinted at with "Soul Deep"." During Barnes' tour in 2014, Barnes performed a number of songs from "Flesh and Wood", inspiring a 2015 national tour of its own. "The band and I are looking forward to playing all