Multi-product liquefaction method and system

An apparatus comprising:

• a coil-wound heat exchanger having a warm end, a cold end, a tube side having a plurality of cooling conduits;
• a first feed stream conduit in upstream fluid flow communication with at least one of the plurality of cooling conduits and in downstream fluid flow communication with a supply of a first hydrocarbon fluid having a first normal bubble point, the first feed stream conduit being operationally configured to carry a first feed stream;
• a second feed stream conduit in upstream fluid flow communication with at least one of the plurality of cooling conduits and in downstream fluid flow communication with a supply of a second hydrocarbon fluid having a second normal bubble point that is lower than the first normal bubble point, the second feed stream conduit being operationally configured to carry a second feed stream;
• a first cooled feed stream conduit in downstream fluid flow communication with the first feed stream conduit and at least one of the plurality of cooling conduits, the first cooled feed stream conduit being operationally configured to carry a first cooled feed stream;
• a second cooled feed stream conduit in downstream fluid flow communication with the second feed stream conduit and at least one of the plurality of cooling conduits, the second cooled feed stream conduit being operationally configured to carry a second cooled feed stream;
• a first product stream conduit in downstream fluid flow communication with the first cooled feed stream;
• a second product stream conduit in downstream fluid flow communication with the second cooled feed stream;
• a first bypass conduit having at least one valve, an upstream end in fluid flow communication with at least one of the plurality of cooling conduits upstream from the cold end, and a downstream end located at an upstream end of the first product stream conduit, and located at a downstream end of the first cooled feed stream;
• wherein the coil-wound heat exchanger is operationally configured to cool the first hydrocarbon fluid and the second hydrocarbon fluid to substantially the same temperature by indirect heat exchange against a refrigerant;
• and
• wherein the first bypass conduit is operationally configured to cause the first hydrocarbon fluid flowing through the first product stream conduit to have a higher temperature than the second hydrocarbon fluid flowing through the second product stream conduit.