| 摘要 |
<p>A method and associated apparatus for removal of benzene, other aromatics and/or other heavier hydrocarbon components from a methane-based gas stream by condensation and stripping. It is desirable to remove benzene and other aromatics to prevent fouling and plugging of processing equipment and it is desirable to recover other heavier hydrocarbon components because of their value. Cooled feed stream (118) is fed to a column (60) and separated into methane-rich vapor stream (120) and benzene/aromatics/heavies liquid (114). The liquid (114) is sent to a heat exchanger (62) to recover refrigeration. Warm dry gas (108) is cooled in the heat exchanger (62) and delivered as stripping gas (109) to the column (60).</p> |
