High-temperature and high-concentration SCR of NO with NH3: Application in a CCS process for removal of carbon dioxide

Brandin, Jan; Hulteberg, Christian; Odenbrand, C.U. Ingemar

doi:10.1016/j.cej.2012.03.006

Cited by 12 publications

(9 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since our conditions are non-isothermal the comparison to other data might be erroneous. The apparent activation energy for the SCR reaction is 60 kJ/mol in our experimental data [5]. This is a rather high value and the rate should not be completely hindered by internal diffusion or could be enhanced by internal temperature gradients in the catalyst particles.…”

Section: Discussionmentioning

confidence: 65%

“…The purpose of the experimental study [5] was to elucidate the possibility to use the SCR process for removing nitrogen oxides in the Oxyfuel process. It was not our aim to determine accurate experimental data for a kinetic investigation.…”

Section: Discussionmentioning

confidence: 99%

“…Data for the simulation were obtained by measuring concentrations of NO and N 2 O according to the method described in paper [5]. In short, the data were obtained in a catalytic bed reactor made of stainless steel with an inner diameter of 8 mm and an outer diameter of 10 mm.…”

Section: Methodsmentioning

confidence: 99%

“…V por was measured by N 2 physisorption to 0.275 cm 3 /g [5] and 0.05 cm 3 /g was added, from earlier measurements, as macro pore volume. This yielded a total pore volume of 0.325 cm 3 /g.…”

Section: Subdomain and Boundary Settingsmentioning

confidence: 99%

“…An experimental study of high-temperature and highconcentration (5000 ppm NO) SCR of NO was performed earlier in which performance of several catalysts used was determined [5].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

High Temperature and High Concentration SCR of NO with NH3 for the Oxyfuel Combustion Process: Fitting of Kinetics to Data from a Laboratory Reactor Experiment

Odenbrand

2017

Top Catal

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Subdomain and Boundary Settingsmentioning

confidence: 99%

“…An experimental study of high-temperature and highconcentration (5000 ppm NO) SCR of NO was performed earlier in which performance of several catalysts used was determined [5].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High Temperature and High Concentration SCR of NO with NH3 for the Oxyfuel Combustion Process: Fitting of Kinetics to Data from a Laboratory Reactor Experiment

Odenbrand

2017

Top Catal

View full text Add to dashboard Cite

Research progress on ammonium bisulfate formation and control in the process of selective catalytic reduction

Zhou

Zhang

Deng

et al. 2016

Env Prog and Sustain Energy

View full text Add to dashboard Cite

The formation mechanism of ammonium bisulfate (ABS) in the process of SCR flue gas denitrification and some research progresses on ABS are reviewed in the paper. The main factors affecting the formation of ABS are investigated, the formation temperature of ABS is in the range of about 190°C−240°C; ABS exists in vapor phase at temperature between 320°C and 345°C, and begins to decompose when the temperature is higher than 345°C; the formation of the ABS can be reduced by reducing the amount of NH3 slip and SO3, in the flue gas. The adverse effects of ABS on catalyst and air preheater are discussed: ABS will cover the surface of catalyst and Bronsted acid sites, decreasing denitrification efficiency; it will deposit in the air preheater, fouling and corroding the air preheater and reduce its operational effectiveness; it also can reduce the resistivity of fly ash and the quality of the fly ash as well. The methods to control ABS formation and the measures to reduce its negative effects are proposed: Select appropriate operating temperature to reduce the ABS deposition over the SCR catalyst; replace the material of the air preheater components from steel to ceramic coating type and change the structure of the air preheater; Take proper methods to reduce NH3 slip and the oxidation rate of SO2, etc. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1664–1672, 2016

show abstract

Catalytic Abatement of NH3 Using NOx in Reducing Environment

2015

View full text Add to dashboard Cite

High-temperature and high-concentration SCR of NO with NH3: Application in a CCS process for removal of carbon dioxide

Cited by 12 publications

References 39 publications

High Temperature and High Concentration SCR of NO with NH3 for the Oxyfuel Combustion Process: Fitting of Kinetics to Data from a Laboratory Reactor Experiment

High Temperature and High Concentration SCR of NO with NH3 for the Oxyfuel Combustion Process: Fitting of Kinetics to Data from a Laboratory Reactor Experiment

Research progress on ammonium bisulfate formation and control in the process of selective catalytic reduction

Catalytic Abatement of NH3 Using NOx in Reducing Environment

Contact Info

Product

Resources

About