Recycling hydrogen dealkylation device

The invention discloses a recycle hydrogen dealkylation device, and belongs to the technical field of petroleum processing. The recycle hydrogen dealkylation device comprises a tank body (1), an inner cylinder (2), a baffle plate demister (3), a partition plate (4), a rotational flow coalescer (5) and a liquid discharge pipe (6), a gas outlet (11) is formed in the center of the top face of the tank body (1), a liquid discharge port (12) is formed in the center of the bottom face of the tank body (1), and a first gas inlet (13) is formed in the upper portion of the side wall of the tank body (1); the upper edge of the inner cylinder (2) is hermetically connected with the inner side of the top surface of the tank body (1); the baffle plate demister (3) is fixed in the inner cylinder (2) and is positioned at the lower part of the inner cylinder (2); the partition plate (4) is fixed in the inner cylinder (2) and is positioned above the baffle plate demister (3); a mounting hole is formed in the partition plate (4