Fluid Bed Reactor

Fluid bed reactors are used for the absorption of gaseous compounds in flue gases.

Adequate particulate absorbents are injected into a gas stream to form a highly expanded fluid bed thus providing excellent absorption conditions.

For example arsenic can be removed by injecting iron oxide. At sufficient high temperatures iron arsenate (scorodite) is formed, a non-poisonous arsenic compound which can not be eluted and, therefore, easily can be deposited not needing safe disposal sites.