Apparatuses, methods and systems for yield increase in a kraft cooking plant
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United States of America
Stats
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Feb 25, 2025
Grant Date -
Nov 23, 2023
app pub date -
May 17, 2022
filing date -
May 17, 2022
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present synergies for at least two parallel cooking plants, e.g., one producing dissolving pulp in a prehydrolysis kraft process, and the other producing kraft pulp by kraft pulping process, which may facilitate increased cooking yield in the kraft cooking plant producing kraft pulp by recovering the hemicelluloses solubilized in the acidic hydrolysate of the prehydrolysis kraft process. In some implementations, there may be no cold caustic extraction step on the dissolving pulp line as the target pulp purity can be achieved by performing just a prehydrolysis step, with reutilization of an acidic hydrolysate stream in a kraft pulp line.
First Claim
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International Classification(s)
- 2022 Application Filing Year
- D21C Class
- 79 Applications Filed
- 24 Patents Issued To-Date
- 30.38 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21C Class
- 0 % this patent is cited more than
- < 1 Age
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