Chemical Engineering Journal | VOL. 383

Auto-thermal operation and optimization of coal-fueled separated gasification chemical looping combustion in a pilot-scale unit

Publication Date Mar 1, 2020


Abstract As one of the chemical looping combustion (CLC) technologies, separated gasification-CLC (SG-CLC) can realize the carbon separation during coal combustion process with low degradation of oxygen carrier and high performances. In order to realize the auto-thermal operation of the constructed pilot-scale SG-CLC unit, some oxygen was added into the gasification agent to compensate the endothermic gasification of coal using steam. The combustion performances of SG-CLC unit were investigated under different conditions with variables of reaction temperature, coal feed rate, steam mass flow, oxygen flow and type of loosen gas. Ten conditions were designed and conducted to study the effects of variables on the CLC performances. According to the temperature curves, auto-thermal operation was achieved in seven of these tests. Carbon capture efficiencies under auto-thermal operation were almost higher than 97% and the oxygen demands in these test were less than 4.70%. The peak value of solid fuel conversion was 93.91% at 930 °C while the minimum was 87.36% at 830 °C under auto-thermal conditions. The performances demonstrated that the SG-CLC system could offer great possibility for its commercial application under auto-thermal conditions. Furthermore, some measures were put forward to optimize the operation of this SG-CLC system.

Powered ByUnsilo

Pilot-scale Unit
Auto-thermal Operation
Chemical Looping Combustion
Auto-thermal Conditions
Carbon Capture Efficiencies
Steam Mass Flow
Coal Feed Rate
Coal Combustion Process
Chemical Looping Combustion Technologies
Looping Combustion Technologies

Introducing Weekly Round-ups!Beta

Powered by R DiscoveryR Discovery

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Climate change Research Articles published between Jan 03, 2022 to Jan 09, 2022

R DiscoveryJan 10, 2022
R DiscoveryArticles Included:  3

Human African trypanosomiasis is a vector-borne tropical disease of African origin. Due to human migration and climate change, the disease might prese...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19


Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard