Anthracite coal-based activated carbon for elemental Hg adsorption in simulated flue gas: Preparation and evaluation

Song, Guanrong; Deng, Ruoqi; Yao, Zheng; Chen, Huazhi; Romero, Carlos E.; Lowe, T.; Driscoll, Greg; Kreglow, Boyd; Schobert, Harold H.; Baltrušaitis, Jonas

doi:10.1016/j.fuel.2020.117921

Cited by 41 publications

(20 citation statements)

References 48 publications

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“…Due to the release of gases and volatile compounds, there were obvious pores on the external surface of the carbon matrix, as shown in Figure 3b (GFSF/KOH mass ratio: 1:2, activation temperature: 800 • C, activation time: 30 min) and 3c (GFSF/KOH mass ratio: 1:2, activation temperature: 750 • C, activation time: 90 min). However, due to the shorter activation time and lower activation temperature, the sample had fewer pores and was microporous [43,44]. The pore of Figure 3c was larger than that of Figure 3b, so the CEC of the sample in Figure 3c is slightly higher.…”

Section: Characterization Of Materialsmentioning

confidence: 96%

Synthesis of Porous Material from Coal Gasification Fine Slag Residual Carbon and Its Application in Removal of Methylene Blue

et al. 2021

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A large amount of coal gasification slag is produced every year in China. However, most of the current disposal is into landfills, which causes serious harm to the environment. In this research, coal gasification fine slag residual carbon porous material (GFSA) was prepared using gasification fine slag foam flotation obtained carbon residue (GFSF) as raw material and an adsorbent to carry out an adsorption test on waste liquid containing methylene blue (MB). The effects of activation parameters (GFSF/KOH ratio mass ratio, activation temperature, and activation time) on the cation exchange capacity (CEC) of GFSA were investigated. The total specific surface area and pore volume of GSFA with the highest CEC were 574.02 m2/g and 0.467 cm3/g, respectively. The degree of pore formation had an important effect on CEC. The maximum adsorption capacity of GFSA on MB was 19.18 mg/g in the MB adsorption test. The effects of pH, adsorption time, amount of adsorbent, and initial MB concentration on adsorption efficiency were studied. Langmuir isotherm and quasi second-order kinetic model have a good fitting effect on the adsorption isotherm and kinetic model of MB.

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Section: Characterization Of Materialsmentioning

confidence: 96%

Synthesis of Porous Material from Coal Gasification Fine Slag Residual Carbon and Its Application in Removal of Methylene Blue

et al. 2021

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“…Another group are alternative materials that are used in the production of commercial activated carbons. This group includes, among others: charcoal [3], peat [4][5][6] anthracite [7][8][9] wood [10][11][12], and municipal solid waste [13]. The content of elemental carbon in agricultural and industrial waste is lower than in the alternative materials [14]; therefore, the efficiency of the production of activated carbons from waste materials is lower than in the case of AC production from alternative materials [15].…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon Modification towards Efficient Catalyst for High Value-Added Products Synthesis from Alpha-Pinene

et al. 2021

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DT0-activated carbons modified with HCl and HNO3 acids, which were used for the first time in the catalytic process of alpha-pinene isomerization, are presented in this study. The carbon materials DT0, DT0_HCl, DT0_HNO3, and DT0_HCl_HNO3 were examined with the following methods: XRF, SEM, EDX, XPS, FT-IR, XRD, and N2 adsorption at −196 °C. It was shown that DT0_HCl_HNO3-activated carbon was the most active material in the alpha-pinene isomerization process. Detailed studies of alpha-pinene isomerization were carried out over this carbon by changing the reaction parameters such as time (5–180 min) and temperature (60–175 °C). The 100% conversion of alpha-pinene was achieved at the temperature of 160 °C and catalyst content of 5 wt% after 3 h over the DT0_HCl_HNO3 catalyst. Camphene and limonene were the main products of the alpha-pinene isomerization reaction.

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“…Activated carbon (AC) is an important and unique functional carbon material with a high degree of microporosity, high surface area and pore structure (Lv et al 2020;Li et al 2020; Hernández-Barreto et al 2020) AC is often used mainly as adsorbent of gases, vapors, and water-dissolved chemical substances (Gómez-Serrano et al 2020) and also as catalyst and catalyst support (Mohammed et al 2018) Traditional AC materials include wood (Nikolas et al 2020), nut shells (Huang et al 2014), and different types of coal (Song et al 2020). These materials considered as waste fractions from industry or agricultural products and residues (Davide et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Bio-Nitrogen-Doped Activated Carbon

Zhang

Wang

et al. 2021

Preprint

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Blood (livestock blood) is a cheap and readily available biomass material with a relatively high protein content.In this study, bio-nitrogen doped activated carbon (BN-AC) was prepared by chemical activation method with nitrogen-rich pig blood as raw material and magnesium chloride as activator.The specific surface area of BN-AC is 283.719 m2/g, and the pore volume is 0.128 cm3/g.The optimum conditions for the preparation of BN-AC were as follows: the mass impregnation ratio of activator to blood powder was 2:1, the impregnation time was 12 h, and the activation temperature was 600 ℃.The forms of biological nitrogen in activated carbon were studied by elemental analysis, Boehm titration, FTIR and XPS.The results showed that the total basicity of 0.720 mmol/g, and acidity of 0.313 mmol/g of the BN-AC.The surface of the precursor has only one Pyrrolic N, and the surface of BN-AC contains Pyridinic N, Pyrrolic N and Graphitic N, the N content of the precursor was successfully preserved.BN-AC has higher methylene blue and iodine adsorption values than ordinary activated carbon.

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Anthracite coal-based activated carbon for elemental Hg adsorption in simulated flue gas: Preparation and evaluation

Cited by 41 publications

References 48 publications

Synthesis of Porous Material from Coal Gasification Fine Slag Residual Carbon and Its Application in Removal of Methylene Blue

Synthesis of Porous Material from Coal Gasification Fine Slag Residual Carbon and Its Application in Removal of Methylene Blue

Activated Carbon Modification towards Efficient Catalyst for High Value-Added Products Synthesis from Alpha-Pinene

Preparation and Characterization of Bio-Nitrogen-Doped Activated Carbon

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