NOx reduction using amine reclaimer wastes (ARW) generated in post combustion CO2 capture

Botheju, Deshai; Glarborg, Peter; Tokheim, Lars-André

doi:10.1016/j.ijggc.2012.05.015

Cited by 20 publications

(11 citation statements)

References 70 publications

(89 reference statements)

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“…ZrP-MPN was used for adsorption of CO 2 from flue gases Cu 2 O-submicrospheres synthesized with an average size of 300 nm and PS of 200 Å exhibited selective anionic adsorption due to their positive surface charge . Amine reclaimer wastes (ARW) have been employed for reduction of NO x compounds from flue gases . Recent reports indicate the use of adsorbents based on limestone, agricultural and industrial wastes for CC. − ,,,− Mesoporous materials containing 20% Na 2 CO 3 exhibited CC capacity of 0.35–0.39 mmol/g .…”

Section: Micro and Mesoporous Materials As Adsorbentsmentioning

confidence: 99%

Development Trends in Porous Adsorbents for Carbon Capture

Sreenivasulu

Sreedhar

Suresh³

et al. 2015

Environ. Sci. Technol.

103

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Accumulation of greenhouse gases especially CO2 in the atmosphere leading to global warming with undesirable climate changes has been a serious global concern. Major power generation in the world is from coal based power plants. Carbon capture through pre- and post- combustion technologies with various technical options like adsorption, absorption, membrane separations, and chemical looping combustion with and without oxygen uncoupling have received considerable attention of researchers, environmentalists and the stake holders. Carbon capture from flue gases can be achieved with micro and meso porous adsorbents. This review covers carbonaceous (organic and metal organic frameworks) and noncarbonaceous (inorganic) porous adsorbents for CO2 adsorption at different process conditions and pore sizes. Focus is also given to noncarbonaceous micro and meso porous adsorbents in chemical looping combustion involving insitu CO2 capture at high temperature (>400 °C). Adsorption mechanisms, material characteristics, and synthesis methods are discussed. Attention is given to isosteric heats and characterization techniques. The options to enhance the techno-economic viability of carbon capture techniques by integrating with CO2 utilization to produce industrially important chemicals like ammonia and urea are analyzed. From the reader's perspective, for different classes of materials, each section has been summarized in the form of tables or figures to get a quick glance of the developments.

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Section: Micro and Mesoporous Materials As Adsorbentsmentioning

confidence: 99%

Development Trends in Porous Adsorbents for Carbon Capture

Sreenivasulu

Sreedhar

Suresh³

et al. 2015

Environ. Sci. Technol.

103

View full text Add to dashboard Cite

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“…However, the practical evaluation of this waste recycling method still needs further investigation. Ammonia generated from the deposition of amine wastes can be reused to reduce NOx emission in incinerators (Botheju et al, 2012;Wang et al, 2014). NH3 and other amino compounds present in wastewater are commonly regarded as the scrubbing agents to transform NOx into N2 and water.…”

Section: Waste Disposal Recycle and Reusementioning

confidence: 99%

“…It has been observed that spraying amines in the combustion process can effectively reduce the formation of harmful nitrogen oxides (NO and NO2). Botheju et al (2012) investigate the possibility of using amine rich wastewater for the selective non-catalytic reduction (SNCR) of NOx. The results indicate that a 96% reduction is achieved when TN/NO (total N to nitric oxide ratio) increases to 8.5 under the optimum temperature of 950 °C.…”

Section: Waste Disposal Recycle and Reusementioning

confidence: 99%

Handling of Amine-Based Wastewater Produced During Carbon Capture

Yin¹,

An²,

Zhao³

et al. 2019

J ENVIRON INFORM LET

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The large-scale implementation of amine-based carbon capture processes requires the development of sustainable handling technology of the waste effluents. The generated wastewater contains significant amounts of ammonia and toxic degradation products, nitroamines and nitrosamines. They both pose great threats to the ecological environment and human health. Monoethanolamine (MEA) is one of the most commonly used absorption solvents in the post-combustion carbon capture process. In order to make a better management strategy, the waste components and the pathways of MEA degradation are demonstrated based on different reference papers and case studies. Moreover, the toxicity and environmental impact of the degradation products are evaluated. The goal of this review is to elucidate potential technologies that can either eliminate the hazardous nature of the amine waste or convert it into marketable products. We categorize these technologies as waste disposal, recycle, reuse, and chemical/biological treatment method. Several applications with a focus on biodegradation technique are examined according to their amine removal performance. The results reveal that bioconversion is a promising technique for handling amine-based wastewater at large-scale.

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“…Waste amine from PCC plants also has deNOx capacity. Studies have indicated that degraded liquid amine waste can significantly reduce NO X emissions in flue gas (Botheju et al, 2012(Botheju et al, , 2013; however, more research is needed in this area. Aqueous solutions of KMnO 4 (Brogren et al, 1997) and KMnO 4 /(NH 4 ) 2 CO 3 (Pan et al, 2013) for NO absorption have also been investigated.…”

Section: -Feron-9780081005149mentioning

confidence: 99%