An Analysis of the Prospects for Coal-Fired Thermal Power Station Reconstruction on the Basis of Coal Gasification and a Combined-Cycle Unit

Султангузин, И. А.; Fedyukhin, A. V.; Zakharenkov, E. A.; Yavorovsky, Y. V.; Voloshenko, E. V.; Kurzanov, S. Yu.; Степанова, Т. А.; Tumanovsky, V. A.; Ippolitov, V. A.

doi:10.1134/s004060152007006x

Cited by 2 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, the coal gasification is a more popular and acceptable technology by using fossil fuel than conventional CFPPs. It provides more clean and high efficiency energy compared with CFPPs (Sultanguzin et al, 2020). But the syngas contains a much higher amount of Hg(0) compared with the exhaust gas from the CFPPs.…”

Section: The Impact Of Sulfur Compounds On Mercury Capture In Process...mentioning

confidence: 99%

Chemical and Process Engineering

2022

View full text Add to dashboard Cite

Mercury is a highly toxic metal which naturally occurs in the Earth's crust and has adverse effects on both humans and the environment. The use of fossil fuels for electricity generation and specific industries sources of mercury emissions. These emissions depend on the mercury content in fuels of different types, the process gas temperature and composition, the implementation of air pollutant control devices (APCDs), etc. The APCDs partially capture and/or oxidize mercury in flue gas as a side benefit. In some cases, the emissions are reduced by mercury-dedicated or mixed methods. Mercury transformation in process gases is generally based on a chain of homogeneous and/or heterogeneous reactions. The theory of gaseous mercury/solid phase reactions and its mechanisms is widely studied in the literature. In this review, we focused on the theoretical and practical studies of these mechanisms, including mercury oxidization and capture from specified laboratory simulated or process gases and industries. We summarized research on various reactions -mostly of a chemical type -between different forms of mercury derived from process gases, and solids, including particles of different kinds (fly ash, adsorbents or catalysts). We additionally reviewed the literature on the interactions between mercury and sulfur compounds in the simulated and process gases.

show abstract

Section: The Impact Of Sulfur Compounds On Mercury Capture In Process...mentioning

confidence: 99%

Chemical and Process Engineering

2022

View full text Add to dashboard Cite

show abstract

Combustion Characteristics of Coal-Water Slurry Droplets in High-Temperature Air with the Addition of Syngas

et al. 2023

View full text Add to dashboard Cite

An experimental study of the ignition and combustion processes of coal-water slurry (CWS) droplets based on coal enrichment waste in a high-temperature oxidizer at 650–850 °C with a syngas addition was carried out. The fuel slurry was a mixture of finely dispersed solid combustible particles (coal sludge, 10–100 µm in size) and water. The syngas was a product of biomass pyrolysis and two waste-derived fuels in a laboratory gasifier. Composition of the syngas was controlled by a precision analytical gas analyzer. The feasibility of co-firing CWS with syngas was experimentally established. Under such conditions, the CWS droplets ignition process was intensified by 15–40%, compared to fuel combustion without the addition of syngas to the combustion chamber. The greatest positive effect was achieved by adding the gas obtained during the biomass pyrolysis. The ignition delay times of CWS droplets are 5.2–12.5 s versus 6.1–20.4 s (lower by 15–39%) when ignited in a high-temperature medium without adding syngas to the combustion chamber. Based on the results obtained, a concept for the practical implementation of the CWS combustion technology in a syngas-modified oxidizer medium is proposed.

show abstract

An Analysis of the Prospects for Coal-Fired Thermal Power Station Reconstruction on the Basis of Coal Gasification and a Combined-Cycle Unit

Cited by 2 publications

References 7 publications

Chemical and Process Engineering

Chemical and Process Engineering

Combustion Characteristics of Coal-Water Slurry Droplets in High-Temperature Air with the Addition of Syngas

Contact Info

Product

Resources

About