First year project results
One of the first activities performed in the framework of the Indus3Es project was the analysis of applicability of the developed technology in different potential industrial processes, considering SPIRE (Sustainable Process Industry through Resource and Energy Efficiency) and non-SPIRE sectors. For this purpose, the different sectors were analyzed in depth, focusing principally on temperature levels, capacities and possible heat sources and heat sinks, which can suit AHT requirements. Results showed that many industrial processes are suitable for integration of AHT technology. Sectors which are especially promising are the petrochemical, pulp&paper, and ceramics sector; followed by water and non-ferrous sectors, where it can be integrated in special applications. Cement and steel sectors showed too high temperatures for AHT integration.
Some processes of interest for integration of AHT in the petrochemical industries include their use in distillation columns or combination of AHT in heat exchanger networks, having a high potentiality to be used in these kinds of plants, due to the amount of hot and cold streams and the high capacity of the processes. Regarding the pulp&paper industry, it is possible to recover heat from the steam leaving the cyclones in the pulping process, to be revalorized and used in the drying section. In the ceramics sector, heat recovery from the exhaust gases of the cooling process could be used to drive an AHT, for energy use in the drying chamber. AHT can be used in the water sector in certain processes, such as multi-effect distillation and multi-stage flas distillation processes, or water desalination. Finally, in the non-ferrous sector, AHT integration could be more difficult, but the possible applications would be linked to cooling systems and external steam grids close to the waste heat generation.