| 摘要 |
The present invention relates to a method and an arrangement where black liquor comprising cooking liquor that has been drained off is adapted to a mixed black liquor by addition of intermediate black liquor. The mixture is brought to a separation tank that employs a gravity separation, being adapted for being emptied of the collected and concentrated tall oil products in a discontinuous manner. The tall oil products positioned above and resting on a fraction of mixed black liquor are subsequently brought to a centrifugal separator for concentration of tall oil products so that these are present in a solid structure which is too hard to be pumped in a simple manner. Finally, the solid form is diluted with water to the extent that it can be pumped and is subsequently pumped to a tank. |
