Ihi E&c International Corporation

Aker Process Systems Ag

Aker Kvaerner, Inc.

Kamal Shah

Geir Vingelven

Pål Helge Nøkleby

Girish Joshi

Girish C Joshi

A method and apparatus for removing benzene from a lean natural gas feed is provided. The method and apparatus are capable of removing benzene from lean natural gas that is predominantly composed of methane and contains very little heavier hydrocarbon components.

Method and apparatus for removing benzene contaminants from natural gas

Liquified petroleum gas or natural gas liquids may be recovered from liquified natural gas by receiving an input stream comprising substantially rich liquified natural gas, splitting the input stream into a direct stream and a bypass stream, heating the direct stream in a cross-exchanger to produce a stream of heat rich liquified natural gas, splitting the heated rich liquified natural gas into a primary column feed, an optional bypass stream and a secondary column feed.

[object Object]

A method and system for purification of a pressurized gas stream, wherein the method includes in a first absorption step bringing the pressurized gas stream in direct contact with a first absorption solution absorbing at least part of the acidic gases, in the gas stream obtaining a gas liquid mixture; and separating the gas liquid mixture in a partly purified pressurized gas stream and a first rich absorption solution. In a second downstream absorption step bringing the partly purified pressurized gas in contact with a second absorption solution through a membrane contactor, obtaining a second rich absorption solution and a purified pressurized gas stream. The first absorption solution is a partially lean absorption solution.

Method and system for gas purification with first direct absorption step and second absorption step by means of membrane contactor

A method and apparatus for conditioning imported liquefied natural gas to conform to a particular pipeline heating value specification and recovery of liquefied petroleum gas or natural gas liquids from liquefied natural gas are disclosed. An input stream containing liquefied natural gas is split into a direct stream and a bypass stream. The direct stream is heated in a cross-exchanger to produce a heated rich liquefied natural gas stream, which is split into a primary column feed and a secondary column feed. At least a major portion of the secondary column feed is vaporized to produce a vaporized secondary column feed, which is expanded in an expander to produce a vaporized and expanded secondary column feed. A top feed, the primary column feed, and the vaporized and expanded secondary column feed are fractionated to produce an overhead product stream and a bottom product stream. The overhead product stream is compressed in a compressor coupled to the expander. At least a major portion of the compressed overhead product stream is condensed by cooling in the cross-exchanger to produce a compressed and condensed overhead product stream. A reflux stream of at least one of the compressed and condensed overhead product stream or an output stream is directed to a top of the fractionation unit as the top feed. The bypass stream is mixed with a balance stream of the compressed and condensed overhead product stream to produce the output stream, which is vaporized to produce a conditioned natural gas product.

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Sugar Land, TX, United States of America

Kamal Shah