Research

Our company, in cooperation with VŠB TU Ostrava, ÚJV Řež, a.s. and the Institute of Chemical Processes of the Academy of Sciences of the Czech Republic, researched within the project of the Technology Agency of the Czech Republic

The aim of the project was to identify the problems of achieving the expected Hg emission limits at individual energy sources burning fossil fuels in the Czech Republic, to propose a technical and economic solution for achieving the expected future mercury emission limit arising from fossil fuel combustion. The pilot plant, in which the influence of realistically available methods, especially SCR (selective catalytic reduction), was investigated, worked with the flue gases of a real energy source. The pilot plant unit was assembled from modules so that tests could be performed on multiple devices, without the need to manufacture or modify their individual parts. At the same time, several measuring points were placed on the unit to evaluate the success of reducing the required pollutants from the flue gas.

As one of the co-owners, we were registered in the project a utility model for the solution "Pilot plant for research of methods of conversion and elimination of Hg in flue gases of energy sources" under No. 31275 at the Industrial Property Office of the Czech Republic.

The Envir & Power Ostrava a.s. also actively participated and presented the results of research at international professional conferences focused on flue gas greening.

Our company cooperated with the Czech Technical University in Prague, the Technical University of Ostrava, ČEZ a.s., United Energy a.s., Opatovice Power Plant a.s. and ORGREZ a.s. within the project of the Technology Agency of the Czech Republic (TA CR) to reduce the concentrations of Hg, HCl and HF from large industrial sources.

The completed project TA04020723 showed the fundamental problems of most large energy sources burning fossil fuels in the Czech Republic with achieving future Hg emission limits in flue gases according to BAT, and pointed the directions of further research to intensify Hg capture in order to reduce the burden on the environment. The aim of the project is to gain knowledge about the distribution and possibilities of Hg capture in four areas. I). Wet desulphurisation technology - issues of so-called Hg re-missions. II). Research of the dependence of the degree of Hg oxidation at lower flue gas temperatures (150 - 170 ° C), the so - called low - temperature oxidation of Hg on catalytic layers. III). Research of reducing the concentration of Hg, HCl and HF by means of sorbent dosed into the boiler or into the flue before the ash separator. IV) Research on Hg distribution and capture in a combination of flue gas dedusting technologies.

Our company cooperated with ÚJV Řež, a.s. and the Czech Technical University in Prague, within the project of the Technology Agency of the Czech Republic (TA CR) in the research of NOx emission reduction in flue gases within CCS oxyfuel combustion technology.

The aim of the project is to identify suitable materials for the production of denitrification catalyst with regard to oxyfuel combustion conditions, as one of the CO2 capture technologies from fossil fuel combustion; at the same time design and implement an SCR pilot unit for oxyfuel flue gas denitrification for reference coal; experimentally verify the effectiveness of NOx reduction and ammonia slip under different operating conditions, especially the stoichiometry of the additive, the operating temperature of the unit and the different composition of the flue gases from oxyfuel combustion.

Based on the results of experiments performed on the pilot unit, the integration of SCR for the reference oxyfuel coal block will be proposed.