Bio-Oil: Production, Modification, and Application

The paper reviews the history of production and application of bio-oil (pyrolysis oil), describes its differences from other types of fuel and chemical feedstock, and considers problems associated with classifying and defining bio-oil and biofuel. The basic physicochemical properties of bio-oil are described, along with a demonstration of their variation depending on the used feedstock. Finally, methods for obtaining bio-oil and modifying its properties are outlined in relation to the primary areas of bio-oil use.