A review on mercury in coal combustion process: Content and occurrence forms in coal, transformation, sampling methods, emission and control technologies

Zhao, Shilin; Pudasainee, Deepak; Duan, Yufeng; Gupta, Rajender; Liu, Meng; Lu, Jincheng

doi:10.1016/j.pecs.2019.02.001

Cited by 385 publications

(189 citation statements)

References 333 publications

Supporting

Mentioning

186

Contrasting

Unclassified

Order By: Relevance

“…Mercury pollution is a persistent threat to the environment and human health 1–5. Mercury emissions originate from a variety of sectors, but pollution from artisanal gold mining6 and coal combustion7 are especially problematic, with the majority of anthropogenic mercury emissions originating from these activities 8. With the Minamata Convention recently coming into force,9 there is an urgent need to develop cost‐effective measures for stemming mercury pollution.…”

Section: Introductionmentioning

confidence: 99%

Mercury Sorbents Made By Inverse Vulcanization of Sustainable Triglycerides: The Plant Oil Structure Influences the Rate of Mercury Removal from Water

Tikoalu

Lundquist

Chalker

2020

Advanced Sustainable Systems

View full text Add to dashboard Cite

High sulfur content polymers are prepared through the copolymerization of sustainable triglycerides and sulfur. These products of “inverse vulcanization” contain 50% sulfur by mass and are evaluated in the removal of mercury from water. The structurally distinct triglycerides found in canola oil, castor oil, and rice bran oil are examined as co‐monomers to determine how each influences the rate and capacity of mercury uptake. An important discovery is that the high percentage of hydroxylated ricinoleic acid in castor oil improves both wetting and the rate of uptake of mercury(II) chloride into the polymer, in comparison with the polymers made from canola oil and rice bran oil. Detailed kinetic and isotherm modeling is carried out for all polymers for both inorganic and organic mercury sorption. All of the polymers are superior to elemental sulfur in their mercury capture ability. In terms of sustainability, this work advances the use of renewable monomers such as triglycerides sourced from plants and inexpensive industrial byproducts such as sulfur to make affordable mercury‐binding materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Mercury Sorbents Made By Inverse Vulcanization of Sustainable Triglycerides: The Plant Oil Structure Influences the Rate of Mercury Removal from Water

Tikoalu

Lundquist

Chalker

2020

Advanced Sustainable Systems

View full text Add to dashboard Cite

show abstract

“…Understanding the macromolecular structure of coal (especially low-rank coal (LRC)) is conducive to the efficient and accurate utilization of coal and is of great significance for extending the coal industry chain. Structural information on coal can be used to understand and control the processing of coal, such as liquefaction [8], pyrolysis [9], combustion [10], and high-performance materials (grapheme [11,12], carbon nanotubes [13,14], and carbon fiber sheets [15,16]).…”

Section: Introductionmentioning

confidence: 99%

Fine Characterization of the Macromolecular Structure of Huainan Coal Using XRD, FTIR, 13C-CP/MAS NMR, SEM, and AFM Techniques

Zhang

et al. 2020

Molecules

View full text Add to dashboard Cite

Research on the composition and structure of coal is the most important and complex basic research in the coal chemistry field. Various methods have been used to study the structure of coal from different perspectives. However, due to the complexity of coal and the limitations of research methods, research on the macromolecular structure of coal still lacks systematicness. Huainan coalfield is located in eastern China and is the largest coal production and processing base in the region. In this study, conventional proximate analysis and ultimate analysis, as well as advanced instrumental analysis methods, such as Fourier transform infrared spectroscopy (FITR), X-ray diffraction (XRD), 13C-CP/MAS NMR, and other methods (SEM and AFM), were used to analyze the molecular structure of Huainan coal (HNC) and the distribution characteristics of oxygen in different oxygen-containing functional groups (OCFGs) in an in-depth manner. On the basis of SEM observation, it could be concluded that the high-resolution morphology of HNC’s surface contains pores and fractures of different sizes. The loose arrangement pattern of HNC’s molecular structure could be seen from 3D AFM images. The XRD patterns show that the condensation degree of HNC’s aromatic ring is low, and the orientation degree of carbon network lamellae is poor. The calculated ratio of the diameter of aromatic ring lamellae to their stacking height (La/Lc = 1.05) and the effective stacking number of aromatic nuclei (Nave = 7.3) show that the molecular space structure of HNC is a cube formed of seven stacked aromatic lamellae. The FTIR spectra fitting results reveal that the aliphatic chains in HNC’s molecular structure are mainly methyne and methylene. Oxygen is mainly –O–, followed by –C=O, and contains a small amount of –OH, the ratio of which is about 8:1:2. The molar fraction of binding elements has the approximate molecular structure C100H76O9N of organic matter in HNC. The results of the 13C NMR experiments show that the form of aromatic carbon atoms in HNC’s structure (the average structural size Xb of aromatic nucleus = 0.16) is mainly naphthalene with a condensation degree of 2, and the rest are aromatic rings composed of benzene rings and heteroatoms. In addition, HNC is relatively rich in ≡CH and –CH2– structures.

show abstract

“…Air pollution is a major contributor to human mortality and a potential danger to the environment and ecological system [19]. Thermal power plants such as coal, petroleum, and natural gas are the main sources of air pollution, mercury contamination has been identified to be the most acute air pollutant produced by power plants [20]. In [21], a novel combination of modified genetic algorithm and the improved particle swarm optimization was proposed for minimizing the fuel cost of generating plants and emission simultaneously, by managing and controlling the integration of renewable energy and thermal power production, where an optimal generation plan for maximizing system efficiency can be achieved.…”

Section: Problem Oriented Psomentioning

confidence: 99%

Parameter Estimation for Industrial Robot Manipulators Using an Improved Particle Swarm Optimization Algorithm with Gaussian Mutation and Archived Elite Learning

Umar¹,

Shi²,

Zheng³

et al. 2020

Adv. sci. technol. eng. syst. j.

View full text Add to dashboard Cite

A review on mercury in coal combustion process: Content and occurrence forms in coal, transformation, sampling methods, emission and control technologies

Cited by 385 publications

References 333 publications

Mercury Sorbents Made By Inverse Vulcanization of Sustainable Triglycerides: The Plant Oil Structure Influences the Rate of Mercury Removal from Water

Mercury Sorbents Made By Inverse Vulcanization of Sustainable Triglycerides: The Plant Oil Structure Influences the Rate of Mercury Removal from Water

Fine Characterization of the Macromolecular Structure of Huainan Coal Using XRD, FTIR, 13C-CP/MAS NMR, SEM, and AFM Techniques

Parameter Estimation for Industrial Robot Manipulators Using an Improved Particle Swarm Optimization Algorithm with Gaussian Mutation and Archived Elite Learning

Contact Info

Product

Resources

About