The costly, capital-intensive CTL plants are generally considered to be financially viable when oil prices are above $35-$40 a barrel, which the industry thinks is a good bet.

• 煤炭液化工厂属于资金密集型产业，建设成本高昂。一般认为，当油价高于35美元至40美元一桶时，煤炭液化工厂能实现盈利，而业界认为油价降至上述水平以下的可能性不大。