Process for regulating gas pressures of catalyst regenerator expansion turbines
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United States of America Patent
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Oct 5, 1999
Grant Date -
N/A
app pub date -
May 30, 1997
filing date -
May 31, 1996
priority date (Note) -
Expired
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Abstract
A process for regulating gas pressures of a regenerator with a gas expansion turbine in a flue gas line with a generator, wherein a process regulator opens the inlet valves of a gas expansion turbine and/or the bypass valves or throttles the bypass valves, doing so once with operation and once without operation of the gas expansion turbine. The process regulator is followed by a plurality of function generators, which preset the correcting variables for the downstream valves and in which a first function course of the function generators for operation of the gas expansion turbine and a second function course of the function generators for operation without gas expansion turbine are stored. A quick-acting valve of the inlet valves is acted upon by the speed regulator and it is active only at the time of the start-up of the gas expansion turbine until synchronization of the generator.
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