Читать книгу Biodiesel Production - Группа авторов - Страница 19

Currently, BD derived from inedible oil has sparked scientists' interest in replacing reliance on edible oil‐based diesel. The inedible oil crops can be planted in wasteland or fallow areas without intensive agriculture, which can produce high oil yields [39]. Besides, waste oils and animal fats can be categorized as second‐generation BD. The use of waste as a BD feedstock may reduce the problem of waste disposal and the cost of BD production [75]. Both waste oils and animal fats are most likely to contain water and a slightly higher FFA value compared with virgin oils, which result in lower oil quality. Different types of raw materials will produce different quantities of yield and characteristics of the oil, so the selection of raw materials is very important because the cost of producing BD is very expensive.