Resources Contact Us Home
Method and arrangement of impregnating chips

Image Number 2 for United States Patent #7615134.

The method and an arrangement are for improved impregnation of chips in association with the manufacture of chemical cellulose pulp. Un-steamed chips are fed into an impregnation vessel (30) in which a fluid level (LIQ_LEV) is established under the highest level (CH_LEV) of the chips. An improved impregnation arrangement for the chips is obtained by the addition of impregnation fluids (BL1/BL2/BL3) with increasing temperatures at different heights (P1, P2, P3), and by the establishment of a counter-flow zone (Z1) in the uppermost part of the impregnation vessel. The requirement for steaming may in this way be dramatically reduced while at the same time the amount of expelled waste gases may be minimized. A major part of the volatile compounds present in the wood are bound to the impregnation fluid (REC) that is withdrawn.

  Recently Added Patents
Engineered nucleic acids encoding a modified erythropoietin and their expression
Heat retaining device
Managing device functionality during predetermined conditions
Planarizing agents and devices
Stroboscopic image modulation to reduce the visual blur of an object being viewed by an observer experiencing vibration
Generating agricultural information products using remote sensing
Cathode active material and lithium secondary battery comprising the same
  Randomly Featured Patents
Button interface for state machine
Tilting bucket for material handling machines
Apparatus and method for determining selection of touchable items on a computer touchscreen by an imprecise touch
Curved support bracket for a chair
Intelligent power device module
Data loading method and chip
Monolithic pin diode and method for its manufacture
Cross-linked glycopeptide-cephalosporin antibiotics
Polyarginine-modified liposome having nuclear entry ability
Apparatus and process for cooling hot gas