NOx reduction using amine reclaimer wastes (ARW) generated in post combustion CO2 capture
Publication: Research - peer-review › Journal article – Annual report year: 2012
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NOx reduction using amine reclaimer wastes (ARW) generated in post combustion CO2 capture. / Botheju, Deshai; Glarborg, Peter; Tokheim, Lars-Andre.
In: International Journal of Greenhouse Gas Control, Vol. 10, 2012, p. 33-45.Publication: Research - peer-review › Journal article – Annual report year: 2012
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TY - JOUR
T1 - NO<sub>x</sub> reduction using amine reclaimer wastes (ARW) generated in post combustion CO<sub>2</sub> capture
A1 - Botheju,Deshai
A1 - Glarborg,Peter
A1 - Tokheim,Lars-Andre
AU - Botheju,Deshai
AU - Glarborg,Peter
AU - Tokheim,Lars-Andre
PB - Elsevier Ltd.
PY - 2012
Y1 - 2012
N2 - <p>Amine reclaimer wastes (ARW) generated in CO<sub>2</sub> capture processes demand suitable disposal means.<br/> Such wastes contain remaining amine, NH3 and other degradation compounds. This study investigated<br/> the potential of using ARW as a NO<sub>x</sub> reducing agent, under laboratory conditions in a flow reactor. A<br/> simulated flue gas containing about 500 ppm of NO and 5% O<sub>2</sub> was injected with liquid ARW under<br/> different stoichiometric ratios (TN/NO – total N to nitric oxide ratio) and temperatures. The ARW was<br/> obtained from a distillation monoethanolamine reclaimer in an industrial CO<sub>2</sub> capture facility with a coal<br/> fired boiler. The results indicate that ARW has a significant NOx reduction potential when injected with<br/> TN/NO ratios in excess of 1. The optimum temperature is close to 950 ◦C, where 40% reduction in NOx is<br/> recorded with a TN/NO ratio of 1.6. Increasing TN/NO to 8.5 resulted in a 96% reduction. At low TN/NO<br/> ratios (<1.6), the NOx reduction potential of ARW is comparable to that of monoethanolamine, but lower<br/> than that of NH<sub>3</sub>. Nevertheless, the fact that ARW is a waste product, together with its demonstrated NOx<br/> reduction capability and its calorific value contribution, makes it attractive as an additive to combustion<br/> processes, including cement industry kilns.</p>
AB - <p>Amine reclaimer wastes (ARW) generated in CO<sub>2</sub> capture processes demand suitable disposal means.<br/> Such wastes contain remaining amine, NH3 and other degradation compounds. This study investigated<br/> the potential of using ARW as a NO<sub>x</sub> reducing agent, under laboratory conditions in a flow reactor. A<br/> simulated flue gas containing about 500 ppm of NO and 5% O<sub>2</sub> was injected with liquid ARW under<br/> different stoichiometric ratios (TN/NO – total N to nitric oxide ratio) and temperatures. The ARW was<br/> obtained from a distillation monoethanolamine reclaimer in an industrial CO<sub>2</sub> capture facility with a coal<br/> fired boiler. The results indicate that ARW has a significant NOx reduction potential when injected with<br/> TN/NO ratios in excess of 1. The optimum temperature is close to 950 ◦C, where 40% reduction in NOx is<br/> recorded with a TN/NO ratio of 1.6. Increasing TN/NO to 8.5 resulted in a 96% reduction. At low TN/NO<br/> ratios (<1.6), the NOx reduction potential of ARW is comparable to that of monoethanolamine, but lower<br/> than that of NH<sub>3</sub>. Nevertheless, the fact that ARW is a waste product, together with its demonstrated NOx<br/> reduction capability and its calorific value contribution, makes it attractive as an additive to combustion<br/> processes, including cement industry kilns.</p>
KW - Amine reclaimer waste
KW - Combustion
KW - CO2 capture
KW - Monoethanolamine
KW - NOx reduction
U2 - 10.1016/j.ijggc.2012.05.015
DO - 10.1016/j.ijggc.2012.05.015
JO - International Journal of Greenhouse Gas Control
JF - International Journal of Greenhouse Gas Control
SN - 1750-5836
VL - 10
SP - 33
EP - 45
ER -