Ammonia storage structure and associated systems

A method for manufacturing a module comprising:

• compressing a powder inside a mould, to form a coherent block;
• and
• forming a network of irrigation channels inside the coherent block to obtain the module, the module comprising at least one storage element of a gas in the form of a porous matrix,
• i) wherein the network of irrigation channels comprises a main channel extending along an axis of a container receiving a stack of wafers held in position by a wall of the container, the wafer comprising storage elements alternating with intercalary elements, the intercalary elements comprising a star-shaped network of irrigation channels starting from a central opening taking part in the main channel, so that the intercalary elements form a secondary irrigation network starting from the main channel, to facilitate circulation of gas towards and from the storage elements, or
• ii) wherein the network of irrigation channels comprises a film located inside the module and formed of two flexible porous membranes being deformable such that they are able to draw away from and draw close to each other within the limits of the deformability allowed by the module,
• wherein the space between the two membranes communicates with a main channel to input and output the gas to be stored,
• wherein,
• depending on the pressure values prevailing inside and outside the membrane respectively, the film assumes different states in which the membranes are drawn away from each other to a greater or lesser extent,
• when the storage matrix is heated to deliver gas, the gas enters the space increasing the pressure therein, the membranes then drawing away from each other to facilitate the circulation of gas towards the main channel,
• when filling, the gas pressure applied to the main channel causes the membranes to draw away from one another to facilitate irrigation of the gas towards the core of the storage matrix.

A monolithic porous matrix to store gas including irrigation means to promote the sorption/desorption of the gas within the matrix, wherein said porous matrix includes at least one storage element of a gas in the form of said porous matrix

• i) wherein the irrigation means comprises a main channel extending along an axis of a container receiving a stack of wafers held in position by a wall of the container, the wafer comprising storage elements alternating with intercalary elements, the intercalary elements comprising a star-shaped network of irrigation channels starting from a central opening taking part in the main channel, so that the intercalary elements form a secondary irrigation network starting from the main channel, to facilitate circulation of gas towards and from the storage elements, or
• ii) wherein the irrigation means comprise a film located inside the porous matrix and formed of two flexible porous membranes being deformable such that they are able to draw away from and draw close to each other within the limits of the deformability allowed by the porous matrix,
• wherein the space between the two membranes communicates with a main channel to input and output the gas to be stored,
• wherein,
• depending on the pressure values prevailing inside and outside the membrane respectively, the film assumes different states in which the membranes are drawn away from each other to a greater or lesser extent,
• when the storage matrix is heated to deliver gas, the gas enters the space increasing the pressure therein, the membranes then drawing away from each other to facilitate the circulation of gas towards the main channel,
• when filling, the gas pressure applied to the main channel causes the membranes to draw away from one another to facilitate irrigation of the gas towards the core of the storage matrix.