System for controlling front and back end temperatures of a...

Details System for controlling front and back end temperatures of a... System for controlling front and back end temperatures of a...

2007-01-09

2007-01-09

Neckel, Alexa (Department: 1764)

Gas: heating and illuminating

Apparatus for converting or treating hydrocarbon gas

C048S061000, C048S075000, C422S105000, C422S107000, C422S108000, C422S110000, C422S111000, C422S198000, C422S211000, C422S198000

Reexamination Certificate

active

10134712

ABSTRACT:
A temperature control system and method controls temperatures of front and back ends of a shift reactor. Front and back end temperature sensors sense temperatures of the front and back ends of the shift reactor and generate front and back end temperature signals. An actuator injects fluid into the front end of the shift reactor. A controller communicates with the front end temperature sensor, the back end temperature sensor and the actuator and controls the temperature of the front end and the back end. The controller includes primary and secondary control loops. The secondary control loop communicates with the back end temperature sensor. The primary control loop communicates with the front end temperature sensor. The secondary control loop generates a temperature setpoint for the primary control loop. The secondary control loop has a slower response time that the primary control loop.

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Notification of Transmittal Of The International Search Report Or The Declaration, dated Aug. 29, 2003.

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