Unburned carbon from lignite fly ash as an adsorbent for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mrow><mml:mi>S</mml:mi><mml:msub><mml:mi>O</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> removal

Kisiela, Anna M.; Czajka, Krzysztof; Moroń, Wojciech; Rybak, W.; Andryjowicz, C.

doi:10.1016/j.energy.2016.02.143

Cited by 36 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lignite fly ashes have been used for refilling open cast mines, underground mining, surface restoration, soil amendment (mechanical stabilization and stabilization or strengthening of a soil), immobilization purposes, hydraulic road binders, plaster and mortar, road construction, asphalt filler, blended cement (contributing to CO 2 reduction during the production process), concrete addition (only after receiving technical approval), and various environmental uses (retention of pollutants and soil rehabilitation) [6]. Lignite fly ashes have been successfully tested or used in self-consolidating concrete [10], an adsorbent for SO 2 removal (after separation of enriched carbon fractions) [11], and in combination with a biochar or other organic amendments for improving soil properties [12]. Biochar and fly ash has the potential to improve soil quality, crop yield, and expand the carbon pool for soils [12].…”

Section: Introductionmentioning

confidence: 99%

Fly Ash Formation and Characteristics from (co-)Combustion of an Herbaceous Biomass and a Greek Lignite (Low-Rank Coal) in a Pulverized Fuel Pilot-Scale Test Facility

et al. 2018

View full text Add to dashboard Cite

The lignite boilers are designed for lower quality fuels, and often the ash is not utilized. This work assessed the impact of combustion of an herbaceous biomass with a low-quality Greek lignite on the quality of the resulting fly ash. Test results were compared with those of fly ash samples from an industrial facility using the same fuel qualities. Inductively coupled plasma-optical (ICP) emission spectroscopy, X-ray powder diffraction (XRD), and scanning electron microscope (SEM) analyses were performed on the collected samples. Despite the significantly higher contents of K, Na and S in the biomass, at a 50% co-firing thermal share, the major and minor oxides in the fly ash were comparable to the lignite fly ash quality. This is attributed to the high ash content of the lignite, the low ash content of the biomass, and the much higher heating value of the biomass. There were improvements in fly ash performance characteristics with the herbaceous biomass in the fuel blend. The initial setting time and volume stability evaluations were improved with the biomass in the fuel blend. The work supports efforts of good practices in ash management, social responsibility, a circular economy, power plant renewable energy operations, and co-firing herbaceous biomass fuels in lignite power plants.

show abstract

Section: Introductionmentioning

confidence: 99%

Fly Ash Formation and Characteristics from (co-)Combustion of an Herbaceous Biomass and a Greek Lignite (Low-Rank Coal) in a Pulverized Fuel Pilot-Scale Test Facility

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The above observations indicate the existence of shape inversion within the pore, i.e., the width of the pore at the depth of the material grain is larger than that at the edge (Kisiela 2016). According to Kelvin's theory, the emergence of a hysteresis loop indicates that the adsorption and desorption of particles are irreversible.…”

Section: Resultsmentioning

confidence: 92%

Investigation of Adsorption Characteristics and Influencing Factors for Diesel Engine Exhaust Particles

Zhong

Zhang

Liu

et al. 2021

Preprint

View full text Add to dashboard Cite

The adsorption process of diesel exhaust particles has a great influence on the particles. A single-cylinder diesel exhaust particle collection system was established to collect particle samples with different adsorption environment conditions, and the adsorption capacity of the samples was analyzed and characterized by an isothermal adsorption test; the change patterns of particle characteristics were investigated by the scanning electron microscope and thermogravimetric analyzer, correlation analysis of the factors influencing the adsorption process was performed. The results show that the particles have adsorption capacity and belong to the type of multilayer adsorption on porous media; the pore diameter is continuously distributed in the range of 8–80 nm with multiple peaks, which is the category of mesoporous and macroporous; the adsorption capacity of the sample particles increase with the increase of engine speed. Compared with the particles at the inlet of the exhaust pipe, the box-counting dimension (DB) of particles at the outlet increased, the content of water and soluble organic fraction (SOF) increased, the activation energy (E) decreased. Among the parameters affecting the adsorption process, the increase of hydrocarbons concentration contribute to the increase of particle adsorption and E reduction; the increase of the average temperature of the exhaust pipe inhibit the increase of the DB, and the increase of the temperature difference between the inlet and outlet facilitate the adsorption of water and SOF by the particles; the decrease of the adsorption time is one of the main reasons for the slowdown of the increase in DB; the average pore diameter had the greatest positive correlation with the amount of variation in the DB; the increase in specific surface area and pore volume of the sample particles was the dominant cause of the increase in adsorption capacity as well as the decrease in E.

show abstract

“…Specifically, carbon is used as functional filler in paints [265], asphalt [68,266], bricks [267] and other building materials [268], rubber [269] and in plastic composites [270]. If crystalline carbon structures are formed, they can be valorized in more profitable applications such as catalysts [271]; supports [272]; adsorbents [273][274][275]; or thermal [276][277][278]/electro [279][280][281] conductors.…”

Section: Economic Overviewmentioning

confidence: 99%

Catalytic methane decomposition to boost the energy transition: Scientific and technological advancements

Alves

Pereira

Lagarteira

et al. 2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Unburned carbon from lignite fly ash as an adsorbent for SO2 removal

Cited by 36 publications

References 26 publications

Fly Ash Formation and Characteristics from (co-)Combustion of an Herbaceous Biomass and a Greek Lignite (Low-Rank Coal) in a Pulverized Fuel Pilot-Scale Test Facility

Fly Ash Formation and Characteristics from (co-)Combustion of an Herbaceous Biomass and a Greek Lignite (Low-Rank Coal) in a Pulverized Fuel Pilot-Scale Test Facility

Investigation of Adsorption Characteristics and Influencing Factors for Diesel Engine Exhaust Particles

Catalytic methane decomposition to boost the energy transition: Scientific and technological advancements

Contact Info

Product

Resources

About