Patent ID: 7596943
Filing Date: 2009-10-06
Classification: B01D,F01N,Y02T

Abstract:
1. A method of processing a composition comprising soot particles, the method comprising: providing a honeycomb apparatus extending between a first end and a second end, the honeycomb apparatus comprising a first chamber and a second chamber, which are extending in substantially parallel between about the first end and about the second end, the first and second chambers being divided by a filter wall therebetween, the first chamber comprising an inlet opening at about the first end and a first electrode plugging into the first chamber at about the second end such that the first electrode is exposed to inside the first chamber, the second chamber comprising an outlet opening at about the second end and a second electrode plugging into the second chamber at about the first end such that the second electrode is exposed to inside the second chamber, wherein a photocatalyst is formed in at least one of the first and second chambers; supplying a first composition comprising soot particles and at least one gaseous component into the first chamber via the inlet opening; collecting with the filter wall the soot particles in the first chamber while passing the at least one gaseous component through the filter wall to the second chamber; activating the photocatalyst and generating at least one oxidant within at least one of the first and second chambers by applying electrical power between the first and second electrodes and creating a plasma condition within the at least one of the first and second chambers; oxidizing at least part of the soot particles collected in the first chamber with the at least one oxidant; and discharging from the second chamber a second composition substantially free of soot particles via the outlet opening.