Performance Evaluation of a Novel Thermal Power Plant Process with Low-Temperature Selective Catalytic Reduction

We present the concept of a novel thermal power plant process in conjunction with low-temperature selective catalytic reduction (SCR). This process can be employed to achieve modern standards for NOx emissions and solve problems related to post-gas cleaning processes, such as thermal fatigue, cataly...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2020-10, Vol.13 (21), p.5558
Main Authors: Kim, Seongil, Chae, Taeyoung, Lee, Yongwoon, Yang, Won, Hong, Sungho
Format: Article
Language:English
Subjects:
Catalysts
Chemical reduction
Cleaning
Cleaning process
Coal-fired power plants
Differential pressure
Differential thermal analysis
Efficiency
Emission standards
Emissions
Energy balance
Flue gas
flue gas cleaning
Gas flow
Heat exchangers
Heat transfer
Industrial plant emissions
Low temperature
low-temperature selective catalyst reduction
Nitrogen
Performance evaluation
Power plants
process model
Selective catalytic reduction
Thermal fatigue
Thermal power
thermal power plant
Thermal power plants
Thermodynamic efficiency
Thermoelectricity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present the concept of a novel thermal power plant process in conjunction with low-temperature selective catalytic reduction (SCR). This process can be employed to achieve modern standards for NOx emissions and solve problems related to post-gas cleaning processes, such as thermal fatigue, catalyst damage, and an increase in differential pressure in the boiler. Therefore, this study is aimed at evaluating the performance of a novel flue-gas cleaning process for use in a thermal power plant, where a low-temperature SCR is implemented, along with the existing SCR. We developed a process model for a large-scale power plant, in which the thermal power plant was divided into a series of heat exchanger block models. The mass and energy balances were solved by considering the heat transfer interaction between the hot and cold sides to obtain the properties of each material flow. Using the process model, we performed a simulation of the new process. New optimal operating conditions were derived, and the effects that the new facilities have on the existing process were evaluated. The results show that the new process is feasible in terms of operating stability and cost, as well as showing an increase in the boiler thermal efficiency of up to 1.3%.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13215558