| 摘要 |
There is provided a process for liquefying a flow of relatively impure carbon dioxide gas in conjunction with providing a carbonation flow of relatively pure carbon dioxide gas, which includes the steps of condensing a source flow of carbon dioxide gas, containing contaminating gas having a substantially lower condensation temperature, by passing the source flow in heat exchange relation with a coolant flow of relatively pure carbon dioxide liquid while flashing the coolant flow at a selectively reduced pressure to maintain said heat exchange relation; then separating contaminating gases from the condensed source flow; and then merging the condensed source flow into said liquid coolant flow. Apparatus for practicing the process is also provided.
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