Kellogg Brown + Root LLC

The M.w. Kellogg Company

David A Coyle

Charles A Durr

Felix J Fernandez De La Vega

Ashutosh Rastogi

Duffer Crawford

Bharthwaj Anantharaman

A method for vaporizing a liquefied natural gas (LNG) stream and recovering heavier hydrocarbons from the LNG utilizing a heat transfer fluid is disclosed.

Apparatus and method for regasification of liquefied natural gas

Methods of reducing the concentration of low boiling point components in liquefied natural gas are disclosed. The methods involve dynamic decompression of the liquefied natural gas and one or more pre-fractionation vessels. Particular embodiments are suited for recovering helium and/or nitrogen enriched streams from a liquefied natural gas stream.

Method for nitrogen rejection and or helium recovery in an LNG liquefaction plant

A method of altering the heating value of a liquefied natural gas by adding higher heating value components is disclosed. A portion of the liquefied natural gas is used to cool the higher heating value component stream prior to combining the higher heating value components with the liquefied natural gas to obtain a combined stream having a heating value greater than the liquefied natural gas.

Method for liquefaction of natural gas

A process for removing nitrogen from liquefied natural gas (LNG) using an enhanced surface, reflux heat exchanger is disclosed. A relatively warm high pressure LNG stream is directed countercurrently in heat exchange with a cool low pressure LNG stream to chill the high pressure stream and partially vaporize the low pressure LNG stream in the reflux heat exchanger. Vapor produced thereby strips the low pressure LNG stream of nitrogen. The cool low pressure LNG stream is produced by expansion of the chilled high pressure LNG stream. Vapor produced by the expansion is combined with the vapor produced in the exchanger and withdrawn overhead. Product LNG which is lean in nitrogen is withdrawn from the bottom of the exchanger.

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Houston, TX, United States of America

David A Coyle