System for temperature control of a Claus sulfur unit thermal reactor
Patent 4438069 Issued on March 20, 1984. Estimated Expiration Date: 
December 30, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 30, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References Re28864 Process for the production of sulfur from mixtures of hydrogen sulfide and fixed nitrogen compounds Control system for sulfur process Patent #: 3985864 InventorsAssigneeApplicationNo. 06/335912 filed on 12/30/1981US Classes:422/62, Automatic analytical monitor and control of industrial process422/111Material is an input to contact zoneExaminersPrimary: Bernstein, Hiram H.Attorney, Agent or FirmInternational ClassesC01B 17/00 (20060101)C01B 17/04 (20060101) AbstractA system is disclosed for controlling the environment and temperature in the initial thermal reaction zone of an at least two-zone Claus thermal unit by means of control signals. Both a feed-back control and a feed-forward control are disclosed. | |
