Application Research of HYSYS in Liquefaction Separation of Oxygen-contained Coal-bed Methane
XIAO Ya
ZHU Lin
JIN Liang
DENG Ji
Abstract：The coal-bed methane ( CBM) extracted during coal mining contains oxygen and is difficult to be processed and utilized, if it is directly vented, it not only pollutes the environment but also causes the resources waste. Based on a typical oxygen-contained CBM source, a liquefaction rectification process by nitrogen-methane expansion refrigeration was designed and simulation computation was made with HYSYS. The results showed that the nitrogen and oxygen in CBM can be completely removed by this process, the methane product with relatively high concentration can be got, and the methane recovery rate can reach 99. 99%. In addition, analysis was made on the influence of the reflux ratio, plate number and feed temperature on the oxygen and methane content in the bottom products.
Keywords：oxygen-contained coal-bed methaneliquefactionseparationHYSYSprocess simulation
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 12-15 )