Economic and environmental benefits by improved process control strategies in HCl removal from waste-to-energy flue gas

Research and Innovation Needs for the Waste-To-Energy Sector towards a Net-Zero Circular Economy

“…If sufficiently lightweight in terms of computational demand, such models could be incorporated into advanced control algorithms for FGT units. An example is the use of plant data to create a digital twin of the FGT system, which could allow the testing and tuning of alternative control approaches in a virtual environment [19]. In general, the ultimate goal of data analytics and a model-based control would be the substitution of current PID control approaches, on which most WtE plants are still reliant, with novel process control schemes.…”

Towards high-quality petrochemical feedstocks from mixed plastic packaging waste via advanced recycling: The past, present and future

“…In terms of chemical recycling, it might be interesting to make use of the step-wise decomposition of PVC by directly valorizing the released HCl and benzene prior to pyrolysis of the remaining polymer. For this, the HCl can be washed from the gaseous hydrocarbon stream using an aqueous NaOH solution, or a solvent can be used that captures the HCl from the gas stream [70][71][72]. This way, the obtained benzene streams as well as the HCl can be directly recovered and a contamination with other (chlorinated) aromatic products from the PVC backbone decomposition at higher temperatures can be avoided.…”

Environmental aspects of the competitiveness strategy of mining enterprises in the context of sustainable development

“…Many scientific works of domestic and foreign scientists are devoted to the issues of ecological safety of mining, the impact of subsoil use processes on sustainable development [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

“…The results of the study of Dal Pozzo A., Muratori G., Antonioni G. and Cozzani V. from Italy indicate ample opportunities for optimizing dry acid gas removal systems, in particular with the introduction of multistage systems to support the environmental component of sustainable development [2].…”