天然气水合物开采的全生命周期分析

介绍了天然气水合物(NGH)的成因和矿藏特点,运用生命周期评价(LCA)和生命周期成本分析(LCC)两大方法,分别对海洋NGH开采的环境效应和经济效益进行了系统分析,并与天然气(NG)开采进行对比。结果表明,NGH开采排放的酸性气体接近零,温室气体排放也比较少,全生命周期成本比NG开采低。降低开采和管道的泄漏可以使环境性能更好,开采技术的进步可以使经济可行性更高。NGH的合理开采利用可以获得巨大的经济效益且不会对环境造成危害,有助于解决目前的能源危机。

Life cycle analysis of the natural gas hydrate exploitation

The causes of formation and characteristics of deposits of natural gas hydrate(NGH) were presented,and the life cycle assessment(LCA) and life cycle cost(LCC) were introduced to analyze the environmental effects and the economic benefits of NGH exploitation,which compared to that of NG exploitation.The results demonstrated that small amounts of greenhouse gas?and little acid gas are emitted from NGH exploitation,and LCC of NGH is lower than that of NG.Preventing gas leakage of exploitation and pipeline could improve the environmental impact,and developing advanced mining technology could enhance the feasibility of NGH exploitation.Rational exploitation and utilization of NGH will bring enormous economic benefits,which will solve the current energy crisis without harm to the environment.