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
Wright's Coal Tar Soap an injunction. It has been stated that where a trader adopts words in common use, some risk of confusion is inevitable; it would be wrong to allow someone to monopolise words. A similar confusion will occur when many people have a similar name. In "Wright Layman & Umney Ltd v Wright", 1949, the rule was stated as However, In the late 1960s the Wright's Coal Tar Soap business was taken over by LRC Products (London International Group), which sold it to Smith & Nephew in the 1990s. The soap is now made in Turkey for the current owners of the