Measuring level and high/low level alarm in CCR lock hoppers
Reliable and fast responding control of the catalyst level inside the hopper is very important to ensure a high quality process. Each hopper is equipped with continuous level gauges using rod source technology. Rod sources offer the highest precision and reliability because the radiation is ideally distributed over the measurement range. Therefore the system will also detect the formation of cones, which means that the true amount of catalyst inside the hopper is determined and filling can be optimized. In addition radiometric level switches are installed to provide high level or low level alarms for safety reasons.
Measuring level and low level alarm in catalyst regenerators
The catalyst used for reforming loses its properties over time and thus regeneration of the catalyst is necessary. CCRs are characterized by a continuous regeneration of some of the catalyst in special regenerators, subsequently the regenerated catalyst is returned to the reactor. Radiometric level systems from Berthold are used on the regenerator ensuring a smooth and continuous reactivation process. Due to high process temperatures, the non-contacting technology is the only one which provides reliable level control – the basis for efficient catalyst regeneration.
Customer benefits
- Optimized control of regeneration process
- Improved control of catalyst supply for reforming process
- Ideal utilization of regenerator capacity
- Optimal filling and discharging process
- Reliable control of catalyst feed
- Safe prevention from running empty
Features
- Noncontact, nonintrusive technology
- Standard: point source, rod detector arrangement
- Easy to install on existing tanks, without modification
- Highly repeatable and stable over years of operation
- Sensitive to cone formation (pile-up cones and downward-pointing cones)
- Immune to interfering radiation with X-ray Interference Protection (XIP) or Radiation Interference Discrimination (RID) to continue measuring level during weld inspections
SIL certified option
The SENSseries LB 480 detectors offer versions that are certified for use in SIL 2 applications. SIL 3 is achieved by adding an identical redundant SIL 2 detector using the same source for homogenous redundancy. The certificate covers all measurement applications, from high level or low level alarms to continuous level. Thus the safe measurement of critical processes is guaranteed.
Long-term stability
A reliable measurement is vital for the efficient operation of a process and is therefore our highest priority. Due to various patented technologies, Berthold’s detectors operate consistently, irrespective of even large variations in ambient temperature or degradation caused by aging. The result: many years of operation without the need for recalibration or maintenance and a measurement that you can rely on!
Radiation Interference Protection (XIP)
A reliable measurement is vital for the efficient operation of a process and is therefore our highest priority. Due to various patented technologies, Berthold’s detectors operate consistently, irrespective of even large variations in ambient temperature or degradation caused by aging. The result: many years of operation without the need for recalibration or maintenance and a measurement that you can rely on!
DOWNLOADS
Measurement solutions for the refining industry Industry brochure
English | PDF | 2.6 MB
Radiometric measurement - Accuracy, repeatability and errors Whitepaper
English | PDF | 1.8 MB