Description
The reason for the project is the pursuit of the company DALKIA Poznań ZEC S.A. to reduce emissions of sulfur dioxide and dust in the atmosphere. This will be done through the modernization of the existing IOS to adapt it to the required standards. The main objective of the project is to reduce emissions of air pollutants, in particular sulfur dioxide and dust generated by DALKIA. DALKIA intends to reduce SO2 emissions from its 3K boiler from a current level of 248 mg SO2/Nm3 to a level no higher than 200 mg SO2/Nm3, and also to reduce the amount of dust emitted into the atmosphere from around 38 mg dust/Nm3 to less than 20 mg dust/Nm3. In order to solve the problem of emissions, DALKIA plans a fundamental change in the manufacturing process through the modernization of an existing installation of flue gas desulphurization technology using semi-dry type Drypac. The investment will be beneficial to the environment, the company, and residents of the surrounding area, as well as to the national economy.
Summary of project results
The modernisation of the existing Drypac flue gas desulphurisation system was conducted to adjust it to the new emission standards under the IED Directive. The scope of works included the modernisation of: Reactor – absorber – installation of new spray lances with the installation of a compressed air buffer tank used for atomisation of the reaction suspension. Modification of solid product collection and transport from the absorber was carried out, as well as modification of flue gas guides at the inlet to the absorber. Bag filter – replacement of all baskets and bags to improve filtration properties. Also, the final product transport system has been upgraded. Works also included modernisation of the installation for sorbent preparation, transport and dosing. In order to assure appropriate desulphurisation process, additional measurement points have been installed. In the control system, new control algorithms have been input, and the desulphurisation process has been optimised by selection of new process parameters. The project achieved following indicators Estimated number of desulphurisation, denitrification and dust removal 1 piece Limiting / avoiding each pollutant / energy production - SO2 [Mg / year] 118 Limiting / avoiding each pollutant / energy production - Dust [Mg / year] 42 Project aimed to reduce emissions of pollutants into the air. The goal has been achieved
Summary of bilateral results