| http://www.w3.org/ns/prov#value | - Particularly if stream 7 contains little or no C2 or other components that are lighter than propylene, a column T6 may be used to produce a concentrated propylene stream (14) overhead, and a bottom stream (15) containing most of the propane, methylacetylene and propadiene, which all are heavier boilers than propylene and can be separated from propylene by distillation.
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