FI914307A - Method for using a cooking template - Google Patents
Method for using a cooking template Download PDFInfo
- Publication number
- FI914307A FI914307A FI914307A FI914307A FI914307A FI 914307 A FI914307 A FI 914307A FI 914307 A FI914307 A FI 914307A FI 914307 A FI914307 A FI 914307A FI 914307 A FI914307 A FI 914307A
- Authority
- FI
- Finland
- Prior art keywords
- delignification
- parameter
- alkali
- model
- wood
- Prior art date
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- Paper (AREA)
Abstract
The method according to the invention is intended for the application of a delignification model using a computer- based method, usually in connection with delignification controlled by a digital automation system, especially delignification of cellulose such as sulphate, sulphite, part delignification, flow delignification or the like, the delignification process being controlled at least initially by means of a computer model, the so-called Hattons Kappa model, having the form: K = A - B x [log(H) x (EA)n], which in the method according to the invention is used in the form: K = A1 + B1 x [log(H) x (AL)n], where the offset parameter (A1), the gradation parameter (B1) and the balancing parameter (n) are factors dependent on the type of wood, the wood quality, the pulp and the delignification kinetics and similar aspects, and where the alkali parameter (AL) describes effective alkali. With the aid of the delignification model described the functional Kappa number (Kt) is resolved by means of the known wood-type measured value of the Kappa number (K), and the H factor (H) and the alkali parameter (AL) by use of the predeterminable reciprocal effective relationship of at least the Kappa number (K), the alkali parameter (AL) and the H factor (H).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI914307A FI92225C (en) | 1991-09-13 | 1991-09-13 | Procedure for using a support model |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI914307A FI92225C (en) | 1991-09-13 | 1991-09-13 | Procedure for using a support model |
FI914307 | 1991-09-13 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI914307A0 FI914307A0 (en) | 1991-09-13 |
FI914307A true FI914307A (en) | 1993-03-14 |
FI92225B FI92225B (en) | 1994-06-30 |
FI92225C FI92225C (en) | 1997-08-11 |
Family
ID=8533114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI914307A FI92225C (en) | 1991-09-13 | 1991-09-13 | Procedure for using a support model |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI92225C (en) |
-
1991
- 1991-09-13 FI FI914307A patent/FI92225C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI914307A0 (en) | 1991-09-13 |
FI92225C (en) | 1997-08-11 |
FI92225B (en) | 1994-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: VALMET AUTOMATION OY |
|
BB | Publication of examined application | ||
MA | Patent expired |