Gasket free grid modules for catalyst support and a modular system hereof

1. A grid module for a catalyst support comprising one or more sides arranged with a module connecting part to engage in a tongue/groove connection with a matching receiving connecting part on an external structure, wherein the tongue/groove connection has a cross-section having an S-shape, a Z-shape or a half S-shape.

2. A grid module according to claim 1 , wherein the formed tongue/groove connection provides a gasket free connection.

3. A grid module according to claim 1 , wherein the grid module is a manway grid module or a regular grid module.

4. A grid module according to claim 3 , wherein the external structure is a manway frame, beam wall and/or second manway grid module thereby providing at least one gasket free seal between the module connecting part and the receiving connecting part on one or more external structures.

5. A grid module according to claim 3 , comprising a free side arranged to abut a second manway grid module.

6. A grid module according to claim 3 , comprising

one or two free sides arranged to abut a second and/or third manway grid module

three or two sides each arranged with a module connecting part to engage in a tongue/groove with a matching receiving connecting part on an external structure.

7. A grid module according to claim 3 , wherein the module connecting part has a U shape or is a protruding structure, such as a l shape or an L shape.

8. A grid module according to claim 3 , comprising means for fastening the manway grid module.

9. A grid module according to claim 3 , wherein the external structure is a manway frame, beam wall and/or second regular grid module thereby providing at least one gasket free seal between the module connecting part and the receiving connecting part on the external structure.

10. A grid module according to claim 3 , comprising four sides each arranged with module connecting part to engage in a tongue/groove connection with a matching receiving connecting part on an external structure.

11. A grid module according to claim 3 , wherein the module connecting part has a U shape or is a protruding structure, such as a l or L shape.

12. A grid module according to claim 3 , comprising means for fastening the regular grid module.

13. A modular catalyst support grid system comprising:

at least one manway grid module having one or more sides arranged with module connecting parts, and

at least one manway frame having one or more receiving connecting parts,

wherein the module connecting parts engage the receiving connecting parts in a tongue/groove connection, wherein the tongue/groove connection has a cross-section having an S-shape, a Z-shape or a half S-shape.

14. A modular catalyst support system as recited in claim 13 , wherein the manway frame comprises two frame sections suspended between two support beams.

15. A modular catalyst support system as recited in claim 13 , wherein each manway frame section comprises two receiving connecting parts, one on each side of the frame section.

16. A modular catalyst support system as recited in claim 13 , further comprising a receiving connecting part on one or more support beams.

17. A modular catalyst support system as recited in claim 13 , further comprising a second manway grid module.

18. A modular catalyst support system as recited in claim 13 , further comprising at least one regular grid module.

19. A modular catalyst support system as recited in claim 18 , wherein:

each manway grid module and regular grid module comprises a number of module connecting parts;

the external structures comprises a number of receiving connecting part;

the module connecting part has a U shape or is a protruding structure, such as a l or L shape; and/or

the receiving connecting part has a U shape or is a protruding structure, such as a l or L shape.

20. A modular catalyst support system comprising one or more grid modules as recited in claim 1 .

21. A reactor comprising one or more grid modules according to claim 1 .