Support elements with support plates in a reactor vessel

A device (1.1;1.2) comprising a reactor vessel (2), a tube bundle (3) of multiple tubes (4), a first support plate (5) and a second support plate (6),

• wherein the tube bundle (3) is disposed in the reactor vessel (2),
• wherein the tube bundle (3) comprises a first tube group (7), a second tube group (8) and a third tube group (9),
• wherein the first support plate (5) and the second support plate (6) are disposed in the reactor vessel (2) transversely to a longitudinal axis (10) of the reactor vessel (2),
• wherein each of the tubes (4) of the first tube group (7) is routed through a respective tube opening (11.1) of the first support plate (5), and wherein the first support plate (5) has multiple fluid-exchange apertures (13.1), wherein each of the tubes (4) of the second tube group (8) is routed through a respective one of the apertures (13.1) in the first support plate (5),
• wherein each of the tubes (4) of the second tube group (8) is routed through a respective tube opening (12.1) of the second support plate (6), and wherein the second support plate (6) has multiple fluid-exchange apertures (13.2), wherein each of the tubes of the first tube group (7) is routed through a respective one of the apertures (13.2) in the second support plate (6),
• wherein each of the tubes (4) of the third tube group (9) is routed through a respective tube opening (11.2) of the first support plate (5) and is made to pass through the second support plate (6),
• wherein the first support plate (5) supports the tubes (4) of the first tube group (7) and the third tube group (9) in the tube openings (11.1, 11.2) of the first support plate (5) transversely to the longitudinal direction of the tubes (4) and the second support plate (6) supports the tubes (4) of the second tube group (8) in the tube openings (12.1) of the second support plate (6).