Universal Installation for the integrated utilization of flue gases and wastewater from thermal power plants

Sergey A Glazyrin,Zhanar A Aydimbaeva,Mikhail G Zhumagulov,Abay M Dostiyarov,A Drozdov

doi:10.1051/e3sconf/202017801062

Abstract

For 30 years research has been carried out on the use of wastewater from thermal power plants and industrial boilers, as well as on the use and extraction of various components from flue gases such as carbon dioxide, sulfur and nitrogen. Technological solutions were developed and implemented in various productions at various times: use of acid-forming components of flue gases for the regeneration of cation exchangers; carbon dioxide from flue gases of 99.9% purity with “food” quality; technical nitrogen of 95-99 purity from flue gases; wastewater usage to increase the degree of sulfur oxides from flue gases. The article presents a technological solution for the integrated utilization of flue gases and wastewater from a thermal power plant with high-pressure boilers burning solid fuels.

Highlights

The main process of water treatment used in boilers is the technology using ion-exchange materials, which require periodic regeneration
It is of interest to consider the possibility of using carbon dioxide for the preparation of regeneration solutions, which would make it possible to have the necessary amount of reagents of our own production
Gas is taken into the nitrogen receiving unit from the upper part of the absorber and sent to the alkaline barrier filter 32, in which, due to the constantly flowing alkali from the tank 30 or directly from the alkali discharge pipeline from the water treatment plant, carbon dioxide remains are connected

Summary

Introduction

The main process of water treatment used in boilers is the technology using ion-exchange materials, which require periodic regeneration. The outgoing flue gases contain carbon dioxide, the production of which does not pose a great deal of difficulty for enterprises that have thermal power units [2]. In this regard, it is of interest to consider the possibility of using carbon dioxide for the preparation of regeneration solutions, which would make it possible to have the necessary amount of reagents of our own production. The flue gases of industrial and power boilers are raw materials for the production of products used in the energy sector, and in other industries

Research methods

Results and discussions

Conclusions