Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871521 | Sulfur recovery process using metal oxide absorbent with improved purge | — | 1989-10-03 |
| 4844720 | Process for removal of hydrogen sulfide and hydrogen polysulfide from liquid sulfur | Russell L. McGalliard | 1989-07-04 |
| 4842843 | Removal of water vapor diluent after regeneration of metal oxide absorbent to reduce recycle stream | — | 1989-06-27 |
| 4797268 | Sulfur recovery process using metal oxide absorbent with regenerator recycle to Claus catalytic reactor | John J. McGovern, Min-Hsiun Lee | 1989-01-10 |