Removable basket for catalytic reactor

A removable basket suitable for containing and holding at least one filtration medium (M) for filtration and distribution of a gaseous phase and a liquid phase, and which can be suitable for being arranged upstream of a fixed catalyst bed (19) of a reactor (17) operating with a co-current gas-liquid downflow, said removable basket comprising:

• a substantially horizontal base (1) and a plurality of substantially vertical side walls (2) and/or at least one ellipsoidal side wall (2), the base (1) and/or at least one side wall (2) being permeable to gas and liquid;
• and
• a plurality of chimneys (3, 4) that are substantially vertical and open at their lower (5) and upper (6) ends, each chimney comprising a lower part (7) comprising the lower end (5) fastened to the base (1) and extending between the side walls (2),
• in which
• a first chimney (3) of the removable basket comprises an upper part (8) extending above the side walls (2),
• the upper part (8) of the first chimney (3) is suitable for being inserted into a lower part (7) of a chimney of another removable basket of the same type, and
• said upper part (8) of the first chimney (3) having a height (h1) that is smaller than or equal to a height (H2) of the lower part (7) of a second chimney (4) of the removable basket.