Abstract
A method has been developed to estimate the amount of residual oxygen in the extraction tower headspace following oxygen alkali extraction (E//O). This analysis can be used during the startup of new E//O systems to rapidly determine operating efficiency. At existing E//O installations, it is a useful tool for control and troubleshooting. Tests conducted at several mills indicate that residual oxygen is a function of oxygen dosage, reaction pressure, and retention time in the E//O stage. Temperature and mixing efficiency also affect residual oxygen. The experimental procedure and method of analysis are described. Carbon monoxide (CO), a by-product of the E//O reaction, is also measured as a safety consideration. Control of the oxygen and carbon monoxide content in E//O vent gas contributes to the safe and efficient operation of an E//O stage.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 94-97 |
| Number of pages | 4 |
| Journal | Tappi Journal |
| Volume | 69 |
| Issue number | 7 |
| State | Published - Jul 1986 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Media Technology
- General Materials Science
- Mechanical Engineering