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地球人口在不断膨胀,地球资源却不能增长。 自古以来,人类以木柴为燃料,但树木的生长经不起加速的砍伐。 石油、天然气储量有限,不久便会枯竭。 核能吗:很好,但一旦出现差错,人类便有劫难。利用核能的投资,也远远超出地区经济的承受能力。 只有煤是人类最丰富最廉价的燃料,已探明的储量足够人类使用两千多年,而其单位热值成本却只有石油、天然气的1/2～1/3。 但是,煤炭的利用也因为其污染严重,热效率低,使用不便等致命缺点而使其在能源消费构成中的比例自60年代起急转直下。 那么,有没有一条经济有效的技术途径,把煤炭转化成清洁、高效、方便的燃料呢?
As the Earth's population continues to expand, the Earth's resources can not grow. Since ancient times, mankind has used firewood as fuel, but the growth of trees can not withstand accelerated deforestation. Oil and natural gas reserves are limited and will soon dry up. Nuclear energy: Well, but once something goes wrong, mankind catastrophe. The investment in using nuclear energy is also far beyond the affordability of the regional economy. Only coal is the richest and cheapest fuel for mankind. Proven reserves are sufficient for more than two thousand years for mankind, and the unit calorific value is only one-half to one-third that of oil and natural gas. However, the utilization of coal is also drastically reduced in the composition of energy consumption since the 1960s because of its fatal disadvantages such as serious pollution, low thermal efficiency and inconvenience of use. So, is there a cost-effective technological means to convert coal into clean, efficient and convenient fuel?