LIQUOR COOLER CONTROL ENHANCEMENT

A SUSTAINABLE INITIATIVE IN SOUTH AFRICA

Water, energy, and environmental conservation are three key pillars that drive modern industrial processes. In this context, a significant initiative was undertaken in South Africa to enhance the control of liquor coolers. The primary objective? Decrease SO2 emission in the MgO#2 blow tank stack, ensuring a sustainable and environmentally friendly operation.

Project Overview

  • Focus Areas: Water, Energy, Environment
  • Country: South Africa
  • Description: Liquor Cooler Control Enhancement
  • Status: Completed
  • Timeline: August 26, 2022 – September 26, 2022

The Challenge

The MgO#2 blow tank stack had been identified as a significant source of SO2 emissions. With environmental sustainability at the forefront, Anssum undertook a root cause analysis to pinpoint the underlying issues. The findings? The control system surrounding the liquor cooler was underperforming. This inefficiency resulted in hot quench liquor being directed to the digesters and subsequent over-pressurisation of these digesters during the pulp discharge phase.

The Initiative

Armed with this knowledge, Anssum’s approach was twofold:

  • Focus on Control: The initiative emphasised enhancing the control mechanisms around the liquor coolers. This involved an in-depth look at the tuning parameters and the overall layout of the control system. By understanding the current limitations and inefficiencies, a tailored solution could be proposed.
  • Leveraging Unutilised Equipment: A critical observation was the presence of equipment that was not being utilised to its full potential. By tapping into these resources, the project aimed to achieve its environmental goals without incurring additional hardware costs.

Outcome and Challenges

The project served as a proof of concept, showcasing the potential to significantly reduce blow tank emissions. However, like many transformative initiatives, there were hurdles along the way. Change management emerged as a primary challenge. Adapting to new processes and systems requires a shift in mindset, and the team had to navigate these waters with tact and patience.

Concluding Thoughts

The Liquor Cooler Control Enhancement initiative stands as a testament to the power of proactive analysis and innovative thinking. By identifying underutilised resources and optimising existing systems, Anssum has once again demonstrated its commitment to sustainable and efficient solutions. As industries worldwide strive for eco-friendly operations, such projects serve as a beacon, highlighting the path forward.

“Through initiatives like these, Anssum continues to lead the way in sustainable industrial practices, showcasing the perfect blend of technology and environmental consciousness.“

ADVANCING PH CONTROL

VENTURI BASE LAYER CONTROL OPTIMISATION IN SOUTH AFRICA

Environmental sustainability and efficient chemical processing are among the top priorities in today’s industrial sector. With a focus on these areas, Anssum embarked on an innovative initiative in South Africa, aiming to optimise Venturi Base Layer Control. This article delves into the project’s intricacies and its commendable contributions to improved pH control.

Project Overview

  • Focus Area: Chemicals & Environment
  • Country: South Africa
  • Description: Venturi Base Layer Control Optimisation
  • Status: Completed
  • Timeline: June 14, 2022 – July 15, 2022

The Challenge

In chemical processes, maintaining optimal pH levels is paramount. However, disturbances can affect this delicate balance, leading to inefficiencies and potential hazards. Responding proactively to these disturbances is essential to ensure safe and efficient operations.

The Anssum Solution

Recognising the need for advanced regulatory mechanisms, Anssum proposed the integration of a state-of-the-art controller designed to proactively counteract disturbances influencing pH control. The approach involved:

  • Time-Series Modeling: Utilising Fast Fourier Transform techniques, a time-series model was developed to understand the interplay between disturbances and the venturis.
  • Feedforward Design: Based on the insights from the model, feedforward elements were meticulously designed to enhance pH control in V5 and V6.

Technical Achievements

The outcomes of this initiative were notably significant:

  • Enhanced Stability: There was a marked 5% improvement in stability across V3, V5, and V6.
  • Reduced Deviation: The Mean Absolute Error (MAE) from the Set Point (SP) in V3, V5, and V6 was reduced by 3%, ensuring closer adherence to desired pH levels.

In Conclusion

Anssum’s Venturi Base Layer Control Optimisation project in South Africa exemplifies the company’s commitment to pushing the boundaries of chemical processing and environmental stewardship. By leveraging advanced techniques and a proactive approach, Anssum continues to drive excellence and innovation in the industry.

“As global challenges in the chemical and environmental sectors intensify, Anssum remains at the forefront, championing solutions that address pressing needs and set new standards for the future.“

SRP OPTIMISATION

STREAMLINING CHEMICAL USE FOR A GREENER SOUTH AFRICA

In the realm of chemical engineering and environmental conservation, the judicious use of raw materials is paramount. Anssum, in its pursuit of sustainable solutions, undertook an initiative in South Africa to optimise Slurry Response Processes (SRP). Let’s delve into the intricacies of this project and its commendable outcomes.

Project Overview

  • Focus Area: Chemicals & Environment
  • Country: South Africa
  • Description: SRP Optimisation
  • Status: Completed
  • Timeline: July 24, 2021 – August 4, 2021

The Objective

The primary challenge in many chemical processes is the efficient and precise control of pH levels. Mismanagement can lead to overutilisation of raw materials, resulting in increased costs and potential environmental hazards. Moreover, smoother slurry responses are essential for reducing slurry usage, which has direct implications for both cost and the environment.

The Anssum Approach

With the above challenges in mind, the SRP optimisation initiative was rolled out. The project focused on two main goals:

  • Achieving tighter control of pH levels using fewer raw materials.
  • Ensuring smoother slurry responses, leading to reduced slurry usage.

Using advanced monitoring tools and innovative process controls, Anssum was able to fine-tune the chemical reactions involved, ensuring minimal wastage and optimal results.

Technical Outcomes

The results of this initiative were both immediate and impactful:

  • Stability Enhancement: The processes became more stable, ensuring consistent and reliable results.
  • Reduced Raw Material Consumption: With the tighter control of pH levels, the use of raw materials significantly decreased.
  • Environmental Benefits: A direct consequence of using fewer raw materials was the reduction in emissions, further underlining Anssum’s commitment to environmental conservation.

Conclusion

Anssum’s SRP optimisation project in South Africa stands as a testament to the company’s dedication to sustainable chemical engineering practices. Through innovative techniques and a deep understanding of the processes involved, the project not only achieved its goals but also set a benchmark for future initiatives.

“In an era where sustainable practices are more crucial than ever, Anssum’s endeavors highlight the symbiotic relationship between industry and environment. As we continue our journey, projects like these pave the way for a more sustainable and eco-friendly future.“