Air Liquide

The invention relates a platform for gas transportation comprising at least a bottom to receive at least one gas packaging in a predetermined space and a mechanical fixing system movable between a first position and a second position so that the gas packaging is locked in the predetermined space in the said first position and so that the gas packaging is released from the predetermined space in the said second position.

A process for producing a carbon monoxide rich product stream by electrolysis of carbon dioxide in an electrolyzer. Due to separation of the respective anode and cathode side product streams, a first off-gas stream containing carbon monoxide is generated at the cathode side, whereas a second off-gas stream containing oxygen is generated at the anode side. Both off-gas streams are supplied to an oxidizing device, in which the oxygen of the second off-gas stream is at least partially reacted with carbon monoxide present in the first off-gas stream to form carbon dioxide, whereby an oxygen depleted stream containing carbon dioxide is formed and recycled to the electrolyzer. A control process is applied which enables a controlled oxidation of carbon monoxide with oxygen to form carbon dioxide. Optionally, also hydrogen contained in the first off-gas stream is converted in the oxidizing device to form water.

Process for treating a gas mixture, comprising drying said gas mixture by adsorption according to an adsorption cycle involving at least one adsorber (6) loaded with adsorbent, said gas mixture comprising moisture as well as a component A, wherein the adsorption cycle comprises : - an adsorption phase during which moisture is adsorbed and component A is co-adsorbed as well, - a regeneration phase comprising a step of regenerating the adsorbent by desorbing moisture as well as component A with a first regeneration stream (E1) comprising component A, at a component A first partial pressure in the adsorber (6), followed by a step of regenerating the adsorbent with a second regeneration stream (E2), at a component A second partial pressure in the adsorber (6) below said first partial pressure, thereby desorbing remaining moisture.

A process for producing a carbon monoxide rich product stream by electrolysis of carbon dioxide in an electrolyzer, in which carbon monoxide is separated from a cathode product stream in a first separation device to form a carbon monoxide rich product stream and a first off-gas stream containing carbon monoxide and carbon dioxide, and in which oxygen is separated from an anode product stream in a second separation device to form an oxygen rich product stream and a second off-gas stream containing oxygen and carbon dioxide. The first off-gas stream and the second off-gas stream are supplied to an oxidizing device, in which the oxygen of the second off-gas stream is at least partially reacted with carbon monoxide present in the first off-gas stream to form carbon dioxide, whereby an oxygen depleted stream containing carbon dioxide is formed and recycled to the electrolyzer.

The invention relates to an electrolysis system comprising one or more electrolysers (3), a header line (13) for providing a continuous flow of a fluid, one or more power supplies (4) to provide electrical energy to the one or more electrolysers (3) for the electrolysis process and one or more liquid-based first cooling devices (7) for cooling the one or more power supplies (4). At least part of the fluid (18) fluid is diverted into the first cooling device (7) for cooling the power supply (4).

A structured packing module comprises a plurality of structured packing sheets (L) positioned in an upright, parallel relationship to each other, each structured packing sheet having corrugations formed of alternating peaks and valleys and corrugation sidewalls that extend between adjacent ones of the peaks and valleys, the structured packing sheets being constructed and arranged such that the corrugations of each one of the structured packing sheets extend at an oblique angle to the corrugations of each adjacent one of the structured packing sheets and a plurality of apertures in the structured packing sheets for allowing passage of fluid through the structured packing sheets, the apertures being distributed in each one of the structured packing sheets such that the number of apertures per surface area of the sheets of the module is greater than 40 000 apertures/m² and the perforation rate of each of the structured packing sheets is greater than 12%.

Process for exchanging a packed bed from a pre-cracking reactor (201) of an installation (200) for producing a hydrogen product from an ammonia feedstock stream, comprising the following steps: • opening (2) the bypass line valve (211) to open the bypass line (210), • closing (3) the pre-cracking reactor inlet valve (213) and the pre-cracking reactor outlet valve (214) to isolate the pre-cracking reactor (201), • unloading (4) the packed bed from the pre-cracking reactor (201), • loading (5) a new packed bed inside the pre-cracking reactor (201), • opening (6) the pre-cracking reactor inlet valve and the pre-cracking reactor outlet valve, the process being performed while: - providing (100) an ammonia feedstock stream, - in the main ammonia cracking reactor (203), performing (101) an endothermic reaction of ammonia cracking for producing said hydrogen product with said provided ammonia feedstock stream as a feed.

The invention relates to a process for producing a hydrogen product (2) from a feed stream (4). Said process comprising the following steps: - providing an ammonia stream (6), in particular a liquid ammonia stream (6); - directing said feed stream (4) derived from the provided ammonia stream (6) to a succession of at least two gas heated reactors (8) arranged in series to perform a succession of ammonia cracking reactions in the gas heated reactors (8), so as to produce at least one intermediate cracked gas (10) passing from a gas heated reactor (8) to the subsequent gas heated reactor (8) and thus producing downstream of the succession of said gas heated reactors (8), a cracked gas (12) from which the hydrogen product (2) is derived.

The invention relates to a process for producing, from a liquid feed stream (2) comprising ammonia, a gaseous ammonia fuel (3) for a fired equipment (4), said process comprising the following steps: - providing said liquid feed stream (2) to a fuel vaporizer (5) to produce said gaseous ammonia fuel (3), said gaseous ammonia fuel (3) being at a nominal pressure p0 in the fuel vaporizer (5); - directing the gaseous ammonia fuel (3) to the fired equipment (4) for performing a combustion of the gaseous ammonia fuel (3); and - when a variation in a demand in said gaseous ammonia fuel (3) occurs, maintaining the pressure of the gaseous ammonia fuel (3) in the fuel vaporizer (5) at the nominal pressure p0.

Bipolar plate (10) for an electrochemical cell, the bipolar plate comprising:- one main sheet (12) defining a plane, said horizontal plane (H), and- at least one spring sheet (14) shaped such that it defines:. upper peaks (20) and lower peaks (40) alternately distributed along the horizontal plane (H), the spring sheet (14) being deformable between a compressed state and an uncompressed state such that the distance in the vertical direction between the upper peaks (20) and the lower peaks (40) is variable,. connection sections (60) connecting one upper peak (20) to one lower peak (40),each connection section (60) includes one horizontal part (62) which is parallel to the horizontal plane (H) when the spring sheet (14) is in the uncompressed state, the horizontal parts (62) being positioned between the upper (20) and the lower (40) peaks with respect to the vertical direction.