从液化天然气中制取高纯度甲烷的工艺

摘要

高纯甲烷在工业、科研等部门有着广泛的用途，介绍了一种从液化天然气中分离高纯甲烷的方法，详细地介绍了整个装置的工艺流程，该分离装置能耗低，产品纯度高，运行稳定。其生产的高纯甲烷纯度为99.999%，已经达到了国内外同类产品的水平。%Highly purified methane has wide application in industrial and scientific researches. This pa-per introduced a process to prepare highly purified methane from liquefied natural gas. It also introduced in great details the whole preparation equipment, which is of low energy consumption, highly purified products, and stable operation. The purity of methane produced by this equipment was 99.999%, which has already reached the same level of the other products at home and abroad.