초록 ▼

A method is disclosed for mitigating fouling and reducing viscosity in primary fractionators and quench sections of ethylene plants by adding to a hydrocarbon stream a mono and/or a polyalkyl-substituted phenol-formaldehyde resin having a weight average molecular weight of from about 1,000 to about

A method is disclosed for mitigating fouling and reducing viscosity in primary fractionators and quench sections of ethylene plants by adding to a hydrocarbon stream a mono and/or a polyalkyl-substituted phenol-formaldehyde resin having a weight average molecular weight of from about 1,000 to about 30,000 and at least one alkyl substituent containing from about 4 to about 24 carbon atoms, which alkyl substituent may be linear or branched.

대표청구항 ▼

[ What is claimed is:] [1.] A method of mitigating fouling and reducing viscosity in the quench section of a primary fractionator in an ethylene plant which comprises adding an effective mitigating and reducing amount of an alkyl-substituted phenol-formaldehyde resin to a hydrocarbon stream, wherein

[ What is claimed is:] [1.] A method of mitigating fouling and reducing viscosity in the quench section of a primary fractionator in an ethylene plant which comprises adding an effective mitigating and reducing amount of an alkyl-substituted phenol-formaldehyde resin to a hydrocarbon stream, wherein the resin is selected from the group consisting of monoalkyl-substituted phenol-formaldehyde resins, polyalkyl-substituted phenol-formaldehyde resins and mixtures thereof, has a weight average molecular weight of from about 1,000 to about 30,000 and has at least one alkyl substituent containing from about 4 to about 24 carbon atoms, which alkyl substituent may be a linear or branched alkyl group.