ScholarLens Back to search
2010•Unpublished venueRequires access

NO_x emission characteristics of pulverized coal combustion in O_2/N_2,O_2/CO_2 and O_2/CO_2/NO atmospheres

Yangxian Liu

Open publisher page 2 citations

Abstract

NOx emission characteristics during pulverized coal combustion in O2/CO2,O2/N2 and O2/CO2/NO atmospheres were studied by using a drop tube furnace.The results showed that in the O2/N2,atmosphere NO emission increased with the increase of O2 concentration or temperature.The same tendency of NOx emission was also found in the O2/CO2 atmosphere.However,the NOx emission in the O2/CO2 atmosphere was 30%—40% lower than that in the O2/N2 atmosphere.In the O2/CO2/NO atmosphere,the effects of O2 concentration on NOx emission as well as on recycled-NO reduction were different at different temperatures.High temperature did not favor recycled-NO reduction.There were two peak values of NOx emission with the increase of residence time.

About this research paper

What this paper is about

NOx emission characteristics during pulverized coal combustion in O2/CO2,O2/N2 and O2/CO2/NO atmospheres were studied by using a drop tube furnace.The results showed that in the O2/N2,atmosphere NO emission increased with the increase of O2 concentration or temperature.The same tendency of NOx emission was also found in the O2/CO2 atmosphere.However,the NOx emission in the O2/CO2 atmosphere was 30%—40% lower than that in the O2/N2 atmosphere.In the O2/CO2/NO atmosphere,the effects of O2 concentration on NOx emission as well as on recycled-NO reduction were different at different temperatures.High temperature did not favor recycled-NO reduction.There were two peak values of NOx emission with the increase of residence time.

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

NOx emission characteristics during pulverized coal combustion in O2/CO2,O2/N2 and O2/CO2/NO atmospheres were studied by using a drop tube furnace.The results showed that in the O2/N2,atmosphere NO emission increased with the increase of O2 concentration or temperature.The same tendency of NOx emission was also found in the O2/CO2 atmosphere.However,the NOx emission in the O2/CO2 atmosphere was 30%—40% lower than that in the O2/N2 atmosphere.In the O2/CO2/NO atmosphere,the effects of O2 concentration on NOx emission as well as on recycled-NO reduction were different at different temperatures.High temperature did not favor recycled-NO reduction.There were two peak values of NOx emission with the increase of residence time.

Key concepts: NOx, Atmosphere (unit), Combustion, Pulverized coal-fired boiler, Tube furnace, Chemistry, Coal, Reducing atmosphere

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
NO_x emission characteristics of pulverized coal combustion in O_2/N_2,O_2/CO_2 and O_2/CO_2/NO atmospheres — Research Paper | ScholarLens