Patent ID: 6468479
Filing Date: 2002-10-22
Classification: B01J,C01B

Abstract:
A chlorine dioxide generator comprising:(a) an eductor having an inlet, an outlet, and a vacuum region between the inlet and the outlet; (b) a reaction column comprising: (i) a transition zone having a lower inlet, an upper outlet, and a smooth tapered surface interconnecting the lower inlet and the upper outlet, said upper outlet having a flow area substantially larger than the flow area of the lower inlet whereby the flow area through the transition zone increases from the lower inlet to the upper outlet; and (ii) a flow passage interconnecting the upper outlet of the transition zone and the vacuum region of the eductor; (c) a first flow passage connected to the lower inlet of the transition zone; (d) a second flow passage connected to the transition zone between the lower inlet and the upper outlet thereof; (e) a first conduit for delivering a first reactant to the first flow passages; (f) a second conduit for delivering a second reactant to the second flow passage whereby the first and second reactants mix in the transition zone to form chlorine dioxide; (g) a water conduit connected to the inlet of the eductor for delivering water through the eductor whereby chlorine dioxide formed in the transition zone is sucked into the vacuum region and dissolved in the water flowing therethrough; and (g) a conduit connected to the outlet of the eductor for delivering the water having chlorine dioxide dissolved therein from the eductor.