| US 7,504,260 B1 | ||
| Method and apparatus for controlling gas temperatures associated with pollution reduction processes | ||
| Fred D. Lang, 12 San Marino Dr., San Rafael, Calif. 94901 (US) | ||
| Filed on Jul. 15, 2004, as Appl. No. 10/892,737. | ||
| Application 10/892737 is a continuation in part of application No. 09/860277, filed on May 16, 2001, abandoned. | ||
| Claims priority of provisional application 60/205716, filed on May 19, 2000. | ||
| Claims priority of provisional application 60/204919, filed on May 16, 2000. | ||
| Int. Cl. G01N 31/10 (2006.01); G05D 23/13 (2006.01); B01D 53/56 (2006.01); F01N 3/18 (2006.01) | ||
| U.S. Cl. 436—55 [422/108; 422/109; 422/110; 422/111; 422/168; 422/173; 436/37] | 11 Claims |
| 7. A method for controlling the temperature of combustion gases entering a pollution reduction process when such a process
is applied to a steam generator burning fossil fuel having at least one heat exchanger, the method comprising the steps of:
obtaining a temperature window of the pollution reduction process;
using a heat transfer study of the steam generator resulting in identification of a source and destination of a re-routed
working fluid based on achieving the temperature window;
modifying the steam generator with the re-routed working fluid based on the heat transfer study;
measuring a temperature of the combustion gases entering the pollution reduction process; and
adjusting the re-routed working fluid flow rate until the temperature of combustion gases entering the pollution reduction
process lies within the temperature window.
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