能源和环保是人类社会发展所面临的两个重大问题。一方面,化石燃料资源有限,石油储量更为有限,按照世界石油组织最近的资料,全世界已探明的剩余可采石油储量共为955亿吨,按去年生产石油28亿吨的速度计算,现有的总储量只可开采34年。另一方面,煤炭、石油等化 Energy and environmental protection are two major issues facing the development of human society. On the one hand, fossil fuel resources are limited and oil reserves are more limited. According to recent data from the World Petroleum Organization, the total amount of remaining recoverable oil reserves in the world has totaled 95.5 billion tons, which is calculated at a rate of 2.8 billion tons of oil produced last year. The existing total reserves can only be exploited for 34 years. On the other hand, coal, oil, etc.