Assertion: butadiene | /r/HasProperty | absorbed
Facets:
value: selectively
type: MANNER
Source sentences:
text: As pointed out above, the overhead products from the second fractionation step are, in accordance with my invention, subjected to a furfural absorption treatment wherein the butadiene, vinylacetylene, and most of the butene-2 are selectively absorbed While butane-1, isobutylene, butanes, and a small portion of the butene-Z are not.
text: However, the butadiene and undesirable components after being released pass upwardly through the furfural vtowards the top where the furfural is cooler than at the reboiler, and the butadiene is again selectively absorbed while the undesirable lessv selectively absorbe components, after the upper layers of furfural once become essentially saturated with them, are discharged overhead.