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
Prophetic medicine Prophetic medicine Prophetic medicine (, "") refers to the actions and words ("hadith") specifically of the Islamic prophet Muhammad with regards to sickness, treatment and hygiene, and the genre of writings undertaken primarily by non-physician scholars to collect and explicate these traditions. It is distinct from Islamic medicine, in that the latter is a broader category encompassing a variety of medical practices rooted in Greek natural philosophy. Prophetic medical traditions exhort humans to not simply stop at following Muhammad's teachings, but encourage them to search for cures as well. The literature of prophetic medicine thus occupies a symbolic role in