| 摘要 |
Procedure for the cryogenic supply to a plant for the production of olefins from hydrocarbon-containing initial reactant mixture (olefin plant) comprises using a refrigerant, which is a liquid olefin fraction with two carbon atoms, where the cryogenic separation stage comprises three condensation stages of -50 to -100[deg]C and is arranged downstream to a fractionation stage. Procedure for the cryogenic supply to a plant for the production of olefins from hydrocarbon-containing initial reactant mixture (olefin plant) comprises using a refrigerant, preferably for cryogenic separation stage of olefins with one or two carbon atoms, where the cryogenic separation stage comprises three condensation stages of -50 to -100[deg]C and is arranged downstream to a fractionation stage, the olefins with up to two carbon atoms are isolated from olefins with at least three carbon atoms (front end deethanizer), and the refrigerant is a liquid olefin fraction with two carbon atoms that is removed from a front end deethanizer. |
