公开(公告)号：EP2334407B1

公开(公告)日：2014-08-20

申请号：EP09776243.9

申请日：2009-07-14

申请人： GEA Process Engineering A/S

发明人： JACOBSEN, Niels ,  MAIMANN, Henrik ,  RASMUSSEN, Bjarne ,  FRIDBERG, Christian, Holm

IPC分类号： B01D53/14 ,  B01D45/12 ,  B04C1/00 ,  F23J15/02

CPC分类号： B01D53/145 ,  B01D45/12 ,  B01D2257/30 ,  F23J15/027 ,  F23J2215/20 ,  F23J2217/40 ,  F23J2219/60

公开(公告)号：EP2334407A1

公开(公告)日：2011-06-22

申请号：EP09776243.9

申请日：2009-07-14

申请人： GEA Process Engineering A/S

发明人： JACOBSEN, Niels ,  MAIMANN, Henrik ,  RASMUSSEN, Bjarne ,  FRIDBERG, Christian, Holm

IPC分类号： B01D53/14 ,  B01D45/12 ,  B04C1/00 ,  F23J15/02

CPC分类号： B01D53/145 ,  B01D45/12 ,  B01D2257/30 ,  F23J15/027 ,  F23J2215/20 ,  F23J2217/40 ,  F23J2219/60

摘要： Disclosed herein is a method for reducing the amount of coarser particles from a stream of flue gas prior to treatment by a spray dryer absorption process (SDA). The method comprises the steps of directing a stream of flue gas containing entrained particles of varying sizes through a curve, thereby subjecting the particles to a centrifugal effect, collecting the particles predominately of the coarser size at a particles collecting means provided in the outer circumference of the curve, dispersing the flue gas reduced in particles of coarse particle sizes into the chamber of a spray dryer absorption apparatus, wherein the particles content of the original flue gas stream is above 20 g/Nm
3 . Also an apparatus for performing the method and a gas disperser is disclosed. The method substantially reduces the cost of the entire plant for treating flue gas having a high content of entrained coarse particles by eliminating the need for a particle pre-collector upstream the SDA.