Pretreatment process of a ligno-cellulosic feedstock
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 11, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jan 28, 2016
filing date -
Feb 9, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
It is disclosed a process to transfer a ligno-cellulosic feedstock from a low pressure zone to a high pressure zone. A slurry the ligno-cellulosic feedstock is first provided, which is then subjected to a multi-step liquid removal process comprising draining by gravity at least a portion of the free liquid; removing a first portion of the capillary liquid in a low pressure zone by continuously compressing a stream of the ligno-cellulosic feedstock to reach a moisture content in a first target range; removing a second portion of the capillary liquid by shearing and compressing the ligno-cellulosic stream in a plug forming device, to form a ligno-cellulosic feedstock plug having a moisture content in a second target range at an outlet of the plug forming device connected to the high pressure zone. In the removal of the first portion of the capillary liquid, at least one first compression device continuously compresses the stream of the drained ligno-cellulosic feedstock to a first control pressure, while conveying the stream of the drained ligno-cellulosic feedstock in a flow direction of a belt filter press.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- D21B Class
- 51 Applications Filed
- 38 Patents Issued To-Date
- 74.51 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- D21B Class
- 0 % this patent is cited more than
- 6 Age
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|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 11, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 11, 2030 |
