REVIEW PAPER
Desulfurization and Denitrification Technologies of Coal-fired Flue Gas
Gan Cheng, Chuanxiang Zhang
 
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College of Chemistry and Chemical Engineering, Henan Polytechnic University,
Jiaozuo 454003, Henan Province
Online publish date: 2018-01-10
Publish date: 2018-01-26
Submission date: 2017-06-06
Final revision date: 2017-07-16
Acceptance date: 2017-07-18
 
Pol. J. Environ. Stud. 2018;27(2):481–489
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ABSTRACT
Coal, as one of the most important sources of energy around the world due to the intensity of its exploiting and utilization, causes increasingly serious ecological problems, especially air pollution. Large amounts of pollutants are emitted during coal combustion, with NOx and SO2 being the principal compositions. Therefore, desulfurization and denitrification are extremely urgent. Many technologies have been developed and applied. Our paper introduces mature and new flue gas denitration and desulfurization technologies along with their processing principles, industrial status, merits, and demerits. The combination of SNCR and SCR technology avoids their respective shortcomings and improves denitrification efficiency and economy. Based on the present situation, future trends are put forward. Synergetic, effective, and cheap desulfurization and denitration technologies will be our focus.
eISSN:2083-5906
ISSN:1230-1485