Filtration Device Hot Electrostatic Precipitators for Fluid Catalytic Cracking Units
GEA's Hot Electrostatic Precipitators are robust, reliable and efficient. The company has also received two orders for gas cleaning systems from the oil and energy group Compañía Española de Petróleos SA for their refineries in La Rabida and San Roque, Spain.
How the technology works: The dust particles suspended in the gas are electrically charged and migrate under the influence of a strong electric field towards the collection electrodes where they are deposited. Accumulated dust layers fall or drop into hoppers arranged beneath the collecting chamber, states the company.
From this stage, discharge and further transportation is carried out by mechanical or pneumatic devices respectively. An essential factor in achieving maximum collection efficiency is an even distribution of the gases over the entire cross section of the precipitator. This is ensured by correct design of the precipitator inlet transition and the installation of specially designed gas deflection and distribution plates, adds the firm.
In accordance with the required collection efficiency of the hot electrostatic precipitator, the dust-laden gas flows through several sequentially arranged electrical fields. Regular cleaning of the electrodes is ensured during operation by tumbling hammer cleaning devices, concludes the company.