Method for producing bio-methanol at pulp mills
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United States of America Patent
Stats
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Jul 19, 2016
Grant Date -
May 5, 2016
app pub date -
Jun 16, 2014
filing date -
Jun 16, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention describes a process and system of producing methanol from methanol condensates. In a preferred embodiment the condensates are biomethanol condensates from chemical pulp mills and various waste sources used to produce a purified biomethanol. Pulp condensates are rich in methanol and contain many other contaminants. Presently, most chemical pulp mills, such as Kraft pulp mills use steam stripping to remove and concentrate the methanol and burn the methanol onsite along with the contaminants. A combination of treatments that include air stripping, steam stripping, distillation and reverse osmosis is described to obtain purified biomethanol suitable for sale or use on site.
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International Classification(s)
- 2014 Application Filing Year
- C07C Class
- 3318 Applications Filed
- 2843 Patents Issued To-Date
- 85.69 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C07C Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 19, 2028 |
