Method and apparatus for treating a hydrocarbon stream

摘要

A method of treating a hydrocarbon stream such as natural gas from a feed stream (10) comprising at least the steps of: a) passing the feed stream (10) through a distillation column (12) to provide a gaseous stream (20) and a C2+ liquid stream (30); b) compressing at least part of the gaseous stream (20) through one or more feed compressors (14, 16) to provide a compressed stream (40); and c) commonly driving (28) at least one of the feed compressors with one or more separate refrigerant compressors for one or more separate refrigerant circuits, by mechanically interconnecting said compressors.