All of which is fine and dandy except that, if rigged to the average coal-fired power station,this process might use a quarter of the energy the plant produces. According to HowardHerzog, a chemical engineer at the Massachusetts Institute of Technology who has made astudy of the matter, that implies a cost of between $50 and $100 per tonne of carbon stored.Carbon dioxide can sometimes be sold to oil companies for injection into partially depletedwells, in order to force more petroleum out of them. For that use it fetches at most $40 atonne. But much CO2 is not produced near depleted oil wells-and anyway, the price wouldsurely drop if CCS became widespread. In one way or another, then, the technology willneed to be subsidised if it is ever to become important.
如果普通的烧煤发电厂使用这些被赋予美好愿望的先进技术,这个过程会消耗电厂产生的四分之一的能源。麻省理工学院的化学工程师霍华德赫佐格研究过这个事情,他说这意味着每储存一吨碳的成本在50到100美元之间。有时候可以把二氧化碳卖给石油公司,他们用来注入部分耗尽的油井,这样就能出更多的石油。每吨最多能卖到40美元。但是在这些将近开采殆尽的油井的周围不能生产更多的二氧化碳,总之一旦广泛采用CCS技术,这个价格一定会降下来。如果这项技术的重要性要得到提高,必须对其进行资助。
【2015考研英语阅读碳的收集和储存】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30