L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Frederic Crayssac

Marc Wagner

Frederic Rousseau

Patrick Le Bot

Benoit Davidian

Mathieu Leclerc

Natacha Haik-Beraud

Philippe Grigoletto

Patrice Cavagne

Jorge Ernesto Tovar Ramos

Solene Valentin

Guillaume Cardon

Antonio Trueba

Marine Andrich

Sébastien Cadalen

Quentin Saniez

The invention relates to a heat exchanger for vaporizing a coolant fluid by heat exchange with a calorigenic fluid, said exchanger comprising several parallel plates defining a plurality of passages between them which are suitable for the coolant fluid or calorigenic fluid to flow, a first wave and a second wave extending between two successive plates so as to define a plurality of channels within the same passage, said first and second waves comprising two adjacent edges, at least one assembly member extending from one edge to the other so as to connect the waves to one another. According to the invention, the assembly member is forcibly engaged in at least one part of a channel of the first wave on one hand, and in at least one part of a channel of the second wave on the other hand.

Heat exchanger with improved wave junction, associated installation of air separation and method for manufacturing such an exchanger

An apparatus for analyzing the content of at least one contaminant in a liquid cryogen comprising a cylindrical enclosure, an annular enclosure arranged around the cylindrical enclosure, means for dividing a flow of liquid cryogen in two, means for delivering a first part of the liquid cryogen to the cylindrical enclosure, means for delivering a second part of the liquid cryogen to the annular enclosure, a pipe connected to the cylindrical enclosure to allow vaporized liquid to pass through, a pipe connected to the annular enclosure to allow vaporized liquid to pass through, a heater for heating the cylindrical enclosure vessel and means for stopping the delivery of liquid cryogen to the cylindrical enclosure.

Apparatus for treating liquid to be analyzed

Plant and process for the production of liquid methane from a feed gas stream comprising at least methane and carbon dioxide. A feed gas stream is injected into a COcrystallizer in countercurrent fashion against a stream of predominantly liquid methane, thereby crystallizing amounts of carbon dioxide from the feed gas stream. Gaseous methane recovered from the COcrystallizer is liquefied at a liquefaction exchanger.

Purification and liquefaction of biogas by combination of a crystallization system with a liquefaction exchanger

The invention relates to an insulated chamber comprising at least one element that may operate at sub-ambient temperature, the space around the element(s) being filled with solid insulation and means for injecting a gas containing at least 95 mol-% nitrogen into the insulation, at least some of the gas-injection means opening at a position vertically above at least one element to insulate.

Insulated chamber and method for flushing such a chamber

Embodiments of the invention relate to an exchanger element having a solid plate and ribs on the plate in order to form exchange channels configured to heat or cool fluid, and distribution channels that extend transversely to the exchange channels.

Exchanger element for a heat exchanger, heat exchanger comprising such an exchanger element and method for the production of such an exchanger element

The present invention relates to the vaporization of a liquid by exchanging heat with a second fluid by means of a heat exchanger of the vertical plate type. It applies in particular to air distillation installations.

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Velizy, France

Frederic Crayssac