Gas: heating and illuminating – Methane -containing product – or treatment or recovery process – Process including chemical reaction
Reexamination Certificate
2011-08-02
2011-08-02
Bhat, Nina (Department: 1771)
Gas: heating and illuminating
Methane -containing product, or treatment or recovery process
Process including chemical reaction
C048S076000, C048S1970FM, C422S625000, C422S626000, C422S628000, C422S629000
Reexamination Certificate
active
07988751
ABSTRACT:
A method for controlling the purity of hydrogen in a reforming apparatus is described where in the apparatus includes a fuel processor, a purification unit and a system controller. The controller determines a calculated flow of reformate from the fuel processor and operates the purification unit based on the calculated flow. The calculated flow is derived from a process model of the fuel processor and known feed(s) to the fuel processor. The calculated flow of reformate is used to control the flow of reformate to adsorbent beds within the purification unit and can be used to control other materials flows within the apparatus. Means for reducing fluctuations in the pressure and/or flow rate of reformate flowing from the fuel processor to the purification unit are also disclosed. The purity of the hydrogen produced can be maintained by adjusting the operation of the purification unit in response to changes in reformate composition, pressure and/or flow rate.
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Balasubramanian Bhaskar
Mirkovic Vesna R.
Sun Hongqiao
Wheat W. Spencer
Bhat Nina
Northcutt Christopher D.
Patangia Melissa
Texaco Inc.
Turner Frank C.
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