Tag Archives: Leif Skilling

Metso targets scrubber energy savings with High Efficiency Scrubber Optimizer

Metso is launching the High Efficiency Scrubber (HES) Optimizer, a digital tool that, it says, combines internal process calculations with measurements available at site to enable energy savings in the operation of Venturi-type scrubbers in wet gas cleaning plants.

During the last decades, Metso specialists have built a vast technical knowledge base on wet gas cleaning, enabling continuous improvement of the operation and performance of gas cleaning equipment and entire plants, it says. The optimiser tool consolidates this.

The High Efficiency Scrubber captures impurity particles in wet gas cleaning plants. However, a significant pressure drop is required to achieve this. Precise adaptation of the pressure drop to the process conditions – the capacity and duty of the wet gas cleaning in general – can enable substantial energy savings while meeting performance targets. This is exactly what the HES Optimizer is designed to do.

Leif Skilling, Director, Gas Cleaning at Metso, said: “We are excited to launch the High Efficiency Scrubber Optimizer. Together with the Wet Electrostatic Precipitator (WESP) Optimizer we introduced last year, there is a significant increase in the flexibility of our gas cleaning plants and solutions. It allows the consumption of electrical power and water to be reduced, while still meeting the overall performance targets.”

Metso stated the benefits of the Metso High Efficiency Scrubber Optimizer including:

  • Adapts pressure drop to process conditions, enabling energy savings;
  • HES and WESP sections can be jointly optimised:
    • Increased energy savings potential;
    • Supplements WESP low load optimisation: ensuring that performance targets are met while the WESP Optimizer equipment protection sequence is running; and
  • Enables faster and more accurate online support from Metso experts.

The HES Optimizer uses existing instrumentation and is always tailored to the needs of the specific customer by Metso experts, the OEM says. Commissioning and online support services are available as part of the HES Optimizer licence.

Metso Outotec launches Editube Wet Electrostatic Precipitator digital optimiser

Metso Outotec is launching a digital optimiser for its wet gas cleaning solution, the Editube™ Wet Electrostatic Precipitator (WESP), as part of its plan to further improve the quality of sulphuric acid production for its clients.

WESPs are a necessity prior to sulphuric acid plants processing metallurgical off-gas to ensure a high-quality acid, according to Metso Outotec. The Editube WESP, meanwhile, has a very high removal efficiency potential where dust levels in the outlet are commonly measured at below 0.5 mg/Nm3.

The new WESP Optimizer improves the operation of the WESP section by better adjusting it to changes in the overall process, the company explains.

Leif Skilling, Director, Gas Cleaning at Metso Outotec, said: “We are excited to launch the new WESP Optimizer. It has important built-in functions to protect the units with plastic tube bundles during low acid load operation. In addition, the Optimizer increases removal efficiency during high acid load operation, as well as provides energy savings whenever there is spare capacity. The Optimizer also monitors the behavior of each WESP, enabling faster damage detection, and provides the operators with otherwise unavailable information such as calculated removal efficiency.”

Metso Outotec says it has more than 35 years of experience with WESPs and has sold more than 125 units. This extensive experience of the Metso Outotec experts is now incorporated into the new WESP Optimizer.

Benefits of the Metso Outotec WESP Optimizer include:

  • Reduced risk of damage to plastic tubes during low acid load conditions, start-up, and commissioning;
  • Energy savings whenever there is spare capacity;
  • Higher removal efficiency and lower flashover frequency during high acid load conditions;
  • Provides operators with otherwise unavailable information;
  • Monitors the WESPs for abnormal behaviour, enabling faster detection of damages and facilitating troubleshooting; and
  • Enables faster and more accurate online support from Metso Outotec experts.