Sin Yong Teng

Strategic Partnership for Environmental Technologies and Energy Production

Školitel: Vítězslav Máša

Instituce: Brno University of Technology, Faculty of Mechanical Engineering

Obor: Process Engineering

 

O mém projektu

In the context of improving global sustainability, manufacturing and processing plants takes an important part, which the industry contributes up to 22% in total greenhouse gas emissions. Globally, manufacturing and processing plants are profit-driven, hence, the industry will be involuntary to improve local environmental impacts by paying high associated costs. To address this issue, policy makers are using legal means to enforce green manufacturing within the industry. This approach is effective, however, it does not provide long term stability, because companies constantly search for legal loopholes to maximize profits by emitting wastes. Nevertheless, from a process engineering perspective, it is to be questioned whether processing plant economy can only be correlated to pollutant emissions? This work proposes the concept of “lean” and “green” manufacturing, which can improve processing plant’s economical and environmental aspect by novel optimization and debottlenecking techniques. The concept uses process integration, optimization and debottlenecking to simultaneously improve yield, pollutant emissions and product quality of process systems within the manufacturing and processing industry. Within all the developed tools and methodologies for “lean” and “green” processes, two of the most successful methods are principal component analysis-aided statistical process optimization (PASPO) and bottleneck tree analysis (BOTA). These two specially developed techniques for “lean” and “green” processes are carried-out in an actual industrial oil refining plant in Malaysia and has showed remarkable results. PASPO was able to identify critical aspect of the process system using a machine learning identification approach, and then optimize the process to improve environmental impacts, product quality and product yield. At the same time, BOTA was able to identify and target bottlenecks within the process system to improve processing capacity, energy efficiency, waste emissions and ultimately processing economy. The future for the “lean” and “green” framework is promising and favourable, however, further complimentary researches and more industrial case studies must be carried out for the technology to achieve complete maturity. With a fully developed “lean” and “green” framework, the technology can be globally implemented in the manufacturing and processing industry to achieve better profitability and processing environmental aspects.