ABSTRACT
Petroleum in the unrefined state is of limited value and of limited use. Refining is required to
produce the products that are attractive to the market place. Thus, petroleum refining is a series
of steps by which the crude oil is converted into saleable products in the desired qualities and in
the amounts dictated by the market (Priestley, 1973). In fact, a refinery is essentially a group of
manufacturing plants that vary in number depending on the variety of products produced;
processes are selected and products manufactured to give a balanced operation.
