TRANSFORMATION AND REMOVAL OF AMMONIUM SULFATE AEROSOLS AND AMMONIA SLIP FROM SELECTIVE CATALYTIC REDUCTION IN WET FLUE GAS DESULFURIZATION SYSTEM
Journal Title: International scientific journal Science and Innovation - Year 2023, Vol 2, Issue 10
Abstract
Selective catalytic reduction (SCR) denigration may increase the emission of NH4+ and NH3. The removal and transformation characteristics of ammonium sulfate aerosols and ammonia slip during the wet flue gas desulfurization (WFGD) process, as well as the effect of desulfurization parameters, were investigated in an experimental system equipped with a simulated SCR flue gas generation system and a limestone-based WFGD system. The results indicate that the ammonium sulfate aerosols and ammonia slip in the flue gas from SCR can be partly removed by slurry scrubbing, while the entrainment and evaporation of desulfurization slurry with accumulated NH4+ will generate new ammonium-containing particles and gaseous ammonia. The ammonium-containing particles formed by desulfurization are not only derived from the entrainment of slurry droplets, but also from the re-condensation of gaseous ammonia generated by slurry evaporation. Therefore, even if the concentration of NH4+ in the desulfurization slurry is quite low, a high level of NH4+ was still contained in the fine particles at the outlet of the scrubber. When the accumulated NH4+ in the desulfurization slurry was high enough, the WFGD system promoted the conversion of NH3 to NH4+ and increased the additional emission of primary NH4+ aerosols. With the decline of the liquid/gas ratio and flue gas temperature, the removal efficiency of ammonia sulfate aerosols increased, and the NH4+ emitted from entrainment and evaporation of the desulfurization slurry decreased. In addition, the volatile ammonia concentration after the WFGD system was reduced with the decrease of the NH4+ concentration and pH values of the slurry.
Authors and Affiliations
Mukhayyo Khoshimkhanova
Keywords
Related Articles
- EP ID EP723348
- DOI 10.5281/zenodo.10047973
- Views 14
- Downloads 0
THE CONSEQUENTIALITY OF REFLEXIVE ABILITIES IN HIGHER EDUCATIONAL INSTITUTION READERS: EXPLORING THE IMPLICATIONS FOR COGNITIVE DEVELOPMENT AND LEARNING OUTCOMES
Reflexive abilities, characterized by the capacity for self-reflection and critical thinking, play a significant role in shaping the cognitive development and learning outcomes of readers within higher educational instit...
IMPORTANCE AND MAIN REQUIREMENTS FOR THE STUDY OF RESEARCH METHODOLOGY AT UNIVERSITIES
This article discusses the need to teach future specialists in the field of economics and finance being able to conduct research, search for information, process, analyze and interpret data, the importance of research wo...
MORPHOLOGICAL CHANGES IN THE KIDNEYS WITH SMALL BOWEL OBSTRUCTION IN THE JUNCTION IN THE DUODENUM
Acute small bowel obstruction (ASBO) accounts for 1.2–14.2% of all emergency surgical procedures [1]. In 30% of patients with acute obstruction of the small intestine, various organ and system dysfunctions develop with c...
THE ROLE AND SIGNIFICANCE OF NATIONAL AND UNIVERSAL CHARACTERISTICS IN THE EDUCATION OF SPECIALIZED BOARDING SCHOOL STUDENTS
In this article, an idea is put forward about the pedagogical possibilities of educating national and universal qualities in the students of specialized boarding schools established in our republic today. After all, how...
THE ROLE OF COLORS IN PEOPLE'S LIFE
The article talks about the world of psychology. It talks about the influence of colors on human logic and their role in our lifestyle. It is possible to heal people through cleansing and learn about the way people creat...