Description
The UOP CCR Platforming process is widely used in the petrochemical industries to convert paraffins and naphthenes to aromatics with little ring-opening or cracking. A key part of the process is the continuous catalyst regeneration (CCR) in which coke deposits are removed from the catalyst by oxidation. The rate of oxidation must be controlled to prevent thermal damage to the catalyst, and this is achieved through careful control of the oxygen level in the process.
The WDG-IV UOP/RP Oxygen Analyzer is the latest in a series of Thermox analyzers, which have been specifically designed to monitor oxygen content in CCR processes since 1980. It uses a nitrogen-operated aspirator to draw a sample of gas from the catalyst regenerator. A portion of this gas passes over the zirconia sensor. Because the aspirator gas contains no oxygen, the sample can simply be returned to the regenerator.
The dual isolation valve option allows the sensor to be replaced without shutting down the CCR process, allowing very high availability to be maintained. The entire sample stream is heated above the sample dew point, so there is no risk of corrosion. For added protection, an all-Hastelloy sample stream is available as an option.
Benefits include
– High reliability
– Hastelloy probe tube
– 316 SS Wetted parts (Hastelloy C optional)
– All Wetted parts heated
– Dual isolation valves (optional)
