Abstract: An LNG facility employing a heavies enriching stream to increase the flexibility of the LNG facility by allowing feed gas streams of widely varying compositions to be processed while producing on-spec LNG.

Abstract: A process for the separation of components of a normally vapor stream containing methane and heavier components by a cryogenic process. This process consisting of cooling the inlet stream, separating the remaining vapor from the resulting liquid which is directed into a distillation column. The vapor is expanded and produced liquids are fed into the distillation column. The expanded vapor stream is contacted with a reflux obtained from a specific source resulting in a secondary reflux which is directed to the top of the distillation column. The origin of the reflux stream is determined by the specific application requirements.

Abstract: A process for recovery of components of volatile gas containing methane and heavier components, by a cryogenic process, cooling the incoming raw gas and separating the desired products by distillation, wherein the feed gas is divided into two streams, one being primarily liquid, which is expanded to lower the pressure and then fed into the demethanizer tower at a selected point, and the other stream, being primarily gas, is divided and expanded and discharged into the demethanizer at selected positions to place the streams in the demethanizer to accomplish maximum separation and recovery of the desired components in either an ethane recovery mode or an ethane rejection mode, the pressures and temperatures of the demethanizer being adjustable for either.