Urea production plant and scrubbing system

A method for the preparation of urea granules, comprising:

• one or more synthesis and recovery steps wherein carbon dioxide is reacted with ammonia to form a solution comprising urea and water;
• evaporation of water from the solution resulting in a first concentrated urea solution and a first water containing vapor;
• subjecting the first water containing vapor to a condensing step resulting in a first condensate;
• subjecting the concentrated urea solution to a granulation step resulting in urea granules and a urea dust containing off gas stream;
• subjecting the urea dust containing off gas stream to a scrubbing step resulting in an aqueous urea solution;
• subjecting the aqueous urea solution to a separate evaporation step resulting in a second concentrated urea solution and a second water containing vapor;
• conveying the second concentrated urea solution to the granulation step;
• subjecting the second water containing vapor to a separate condensation step resulting in a second condensate;
• and
• subjecting the second condensate and a quenching liquid to the urea dust containing off gas stream after leaving the granulation step and before entering the dust scrubbing step.