The wet scrubbers whose efficiencies are high have considerable
energy consumption. The venturi scrubber is one of the more
versatile of such devices. Provision of high velocity gas stream in a
venturi scrubber requires large amounts of energy. Moreover it has
absorption limitations because the particles and spray liquid have
parallel flow.
Some scrubbers such as spray scrubbers have large dimensions
in order that they can provide high efficiencies [15]. These scrubbers
require a high level of liquid/gas ratio. Consequently, provision
of such a high amounts of liquid might be uneconomical.
In this work, capturing efficiency of the PVC dust particles from
air by anewdynamical scrubber in thePVCunit of the Bandar-Imam
Petrochemical Complex located south of Iran has been investigated.
Details of the operation and designing of this dynamical scrubber
has been described in the previous work [21]. Effect of the operating
parameters on the removal efficiency of the PVC particles with
diameters ranging from 0.5 up to 20mwere studied in this study.
Particles with the diameter larger than 2m have been removed
completely (100% efficiency) by this dynamical scrubber while
employing very low flow rates of water as the physical absorber. In
addition, in case of 466m3/h inlet air containing 0.5m particles,
the removal efficiency of about 73% has been achieved by employing
500 l/h water as the physical absorber which is an interesting
result with respect to the other particulate control systems.