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CHEMICALS & PHARMACEUTICALS
An example of a clamp-on ultrasonic flow
measurement installation
exploration of alternative measurement technologies that could enhance reliability and reduce operational disruptions. Plant operators turned to Emerson’s Flexim clamp-on ultrasonic flow measurement, as this technology offers several advantages that are crucial when it comes to handling corrosive chemicals. Firstly, because it’s entirely non-intrusive, with sensors mounted on the outside of the pipe, this configuration eliminates any risk of the system components being degraded by the corrosive fluids, ensuring longevity and reducing maintenance costs. Additionally, this approach doesn’t disturb the flow, or create potential leak points, therefore system integrity and safety is upheld. Scepticism about the accuracy and potential drift of ultrasonic flow meters was
CLAMP-ON MEASUREMENT FOR CORROSIVE CHEMICALS
FLEXIM explains how clamp-on ultrasonic flow measurement technology is particularly beneficial in industries dealing with corrosive or highly sensitive materials, such as the chemical industry
C
lamp-on ultrasonic flow measurement represents a significant technological
advancement in the monitoring and control of liquid flows within industrial pipes. By employing ultrasonic waves to measure the rate at which fluid flows through a pipe with transducers clamped to the outside, this technology offers a completely non-intrusive solution, avoiding direct contact with the medium. This feature is crucial in preventing equipment degradation and ensuring the safety and integrity of the measurement process.
For example, processors face challenges in DL-methionine production. DL-methionine is an essential amino acid used extensively in animal feed. At the world’s largest DL- methionine production complex in Singapore, advanced chemical processes are leveraged to meet considerable demand. Methionine, derived from substances like acrolein, methyl mercaptan, and hydrogen cyanide, is vital for many animals that cannot synthesise this amino acid naturally. The production process involves handling highly corrosive chemicals,
28 JUNE 2024 | PROCESS & CONTROL
which is why robust and reliable flow measurement systems are essential. At the Singapore plants, existing wetted
inline flow meters were struggling with the harsh conditions, leading to plant shutdowns for maintenance. This challenge led to the
addressed through the comprehensive pre- calibration of devices. The system uses matched transducers and incorporates integrated temperature compensation to ensure precise and stable measurements. The added feature of Advanced Meter Verification (AMV) allows for regular checks against reference data without disrupting the production process, further ensuring reliability and accuracy over time. Convinced by the capabilities and benefits, the company equipped its methionine production lines with several Flexim systems. This transition to clamp-on ultrasonic flow measurement has successfully eliminated the need for plant shutdowns due to meter failures, underlining the technology’s impact on improving operational efficiency and reducing costs in chemical processing environments.
This all goes to show that for industries dealing with similar challenges, adopting non-intrusive ultrasonic flow measurement can be a truly transformative decision. To find out more about the real-world
benefits of clamp-on ultrasonic flow measurement in the chemical industry, for permanent mains-powered installations, or battery-powered rental meters available from one week to longer duration options, contact Simon Millington using the contact details below.
Chemical processes in DL-methionine production
Flexim
T: 01606 781420 E:
flexim-uk@emerson.com
www.emerson.com
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