Energetska optimizacija vzporedno delujočih procesov za proizvodnjo formaldehida : doktorska disertacija

slovenian

doktorska dela

2021

CO2 emissions   ecology   energy production   formaldehyde   formalin production   industrial waste gases

Univerza v Mariboru, Fakulteta za kemijo in kemijsko tehnologijo

The doctoral dissertation deals with the energy optimization of operating processes for the production and further processing of formaldehyde and the reduction of the burden on the environment, with special emphasis on the minimization of total amounts of emitted CO2. Waste gases from the production process of formalin production must comply with EU environmental regulations, which are expected to require a reduction in the content of formaldehyde and volatile organic compounds. In this goal, we have developed two methods: a process involving the upgrading of existing processes for the removal of formaldehyde and other volatile organic compounds with an additional absorption device, and the process of co-incineration of waste gases generated in the process of obtaining formalin with metal oxide, with natural gas in a gas turbine, where formaldehyde and volatile organic compounds are completely removed, while electricity is also obtained. Computer simulations were performed with the Aspen Plus software package, taking into account the equilibrium absorption constant and the reaction of low formaldehyde concentrations in water. Economic analyzes have confirmed that it is possible to significantly reduce operating and fixed costs and reduce formaldehyde emissions by more than five times in the case of the first method (silver catalyst) and to zero in the case of the second method (metal oxide catalyst).

07.08.2023