如果可以实现完全转化,目前全世界植物生物质能源每年生长量相当于全球石油开采量的20倍-27倍经济学家认为,随着经济的发展,世界各国对石油的依赖程度越来越深,油价已经成为影响经济发展的关键因素。但是,石油资源又是有限的,在不远的将来就面临枯竭的危险。因此,减少对石油的 If complete conversion can be achieved, the current annual growth of plant biomass energy in the world is equivalent to 20 times to 27 times the global oil production. Economists believe that as the economy develops, countries in the world rely more and more on petroleum , Oil prices have become the key factor affecting economic development. However, petroleum resources are limited again and they are in danger of depletion in the near future. So reduce to the oil