Preparation of activated carbon adsorption materials derived from coal gasification fine slag via low-temperature air activation

Gao, Zheng; Han, Xiangxin; Wang, Guangli; Liu, Jianguo; Cui, Xinyu; Zhang, Chaoqun; Wang, Jiaxing

doi:10.1016/j.jgsce.2023.205069

Cited by 5 publications

(4 citation statements)

References 45 publications

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“…The raw coal fed into the gasifier was a typical blended coal mix of bitumite and anthracite from China. Proximate and ultimate analyses of the CGS samples ( Table 2 ) were performed according to Chinese National Standards GB/T 212–2008 [ 14 ], respectively [ 7 ]. The ash compositions are listed in Table 3 .…”

Section: Resultsmentioning

confidence: 99%

“…As indicated by the vulcanisation curve, the vulcanisation reaction is an autocatalytic process, and the process equation can be expressed by Equation (7).…”

Section: Characterizationmentioning

confidence: 99%

“…The utilisation of CGS generally requires copious acid or alkali, or high-temperature and high-pressure treatment. Zheng et al [ 7 ] subjected CGS to low-temperature oxidation at 485 °C for varying residence times under an atmospheric environment, achieving different degrees of activation and yielding activated carbon as an adsorbent. Yang et al prepared an X-type zeolite/carbon composite via alkaline leaching.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Full-Component Coal Gasification Fine Slag: High-Value Utilization as Reinforcing Material in Styrene-Butadiene Rubber (ESBR) for Replacing Carbon Black

Feng,

Wang,

et al. 2024

Polymers

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Ultrafine, highly active coal gasification slag (HCGS) was produced via a sustainable, green dry-ball-milling method. Coal gasification fine slag (CGS), a potential environmental pollutant, was used as a new source of rubber filler without pre-treatment, enabling waste utilisation. HCGS was added to styrene-butadiene rubber (ESBR) composites, and the effects of HCGS and the filler content on the mechanical and thermal stabilities of SBR were evaluated. The procedure conforms to important green metrics, requiring no solvent or additional reagent, or solvent-assistance for product collection. HCGS reduced the scorch time (t10) and curing time (t90) of the filled ESBR composites relative to those of pure SBR and improved the mechanical parameters. The tensile strength at 50 phr reached 10.91 MPa, and the tear strength at 90 phr reached 64.92 kN/m, corresponding to 9.4- and 3.92-fold increases relative to that of SBR filled with HCGS, respectively. HCGS exerted a reinforcing effect on ESBR, comparable to that of commercial carbon black (CB) N330. HCGS improves the binding between rubber molecules and filler particles and captures the rubber chain, thereby limiting its movement. HCGS is potentially applicable as a CB substitute in the rubber industry, with environmental and economic benefits in the disposal of CGS.

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Section: Resultsmentioning

confidence: 99%

“…As indicated by the vulcanisation curve, the vulcanisation reaction is an autocatalytic process, and the process equation can be expressed by Equation (7).…”

Section: Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of Full-Component Coal Gasification Fine Slag: High-Value Utilization as Reinforcing Material in Styrene-Butadiene Rubber (ESBR) for Replacing Carbon Black

Feng,

Wang,

et al. 2024

Polymers

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“…This suggests that appropriate activation can effectively increase the samples' specific surface area and enhance their adsorption capacity. Moreover, the overall pore volume increased by 7.8% (0.3093 m 3 /g) [87]. Recently, researchers revealed the combined use of carbon compound drocarbons and biomass.…”

Section: Preparation Of Carbon Materialsmentioning

confidence: 99%

Transforming Waste into Wealth: Advanced Carbon-Based Electrodes Derived from Refinery and Coal By-Products for Next-Generation Energy Storage

Ferdous,

Shah,

Shah

et al. 2024

Molecules

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This comprehensive review addresses the need for sustainable and efficient energy storage technologies against escalating global energy demand and environmental concerns. It explores the innovative utilization of waste materials from oil refineries and coal processing industries as precursors for carbon-based electrodes in next-generation energy storage systems, including batteries and supercapacitors. These waste-derived carbon materials, such as semi-coke, coal gasification fine ash, coal tar pitch, petroleum coke, and petroleum vacuum residue, offer a promising alternative to conventional electrode materials. They present an optimal balance of high carbon content and enhanced electrochemical properties while promoting environmental sustainability through effectively repurposing waste materials from coal and hydrocarbon industries. This review systematically examines recent advancements in fabricating and applying waste-derived carbon-based electrodes. It delves into the methodologies for converting industrial by-products into high-quality carbon electrodes, with a particular emphasis on carbonization and activation processes tailored to enhance the electrochemical performance of the derived materials. Key findings indicate that while higher carbonization temperatures may impede the development of a porous structure, using KOH as an activating agent has proven effective in developing mesoporous structures conducive to ion transport and storage. Moreover, incorporating heteroatom doping (with elements such as sulfur, potassium, and nitrogen) has shown promise in enhancing surface interactions and facilitating the diffusion process through increased availability of active sites, thereby demonstrating the potential for improved storage capabilities. The electrochemical performance of these waste-derived carbon materials is evaluated across various configurations and electrolytes. Challenges and future directions are identified, highlighting the need for a deeper understanding of the microstructural characteristics that influence electrochemical performance and advocating for interdisciplinary research to achieve precise control over material properties. This review contributes to advancing electrode material technology and promotes environmental sustainability by repurposing industrial waste into valuable resources for energy storage. It underscores the potential of waste-derived carbon materials in sustainably meeting global energy storage demands.

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Synthesis of porous carbon/zeolite composites by low-temperature acid-alkaline leaching from coal gasification fine slag for adsorption of dye wastewater

Tang,

Sun,

Men

et al. 2024

Journal of Environmental Chemical Engineering

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Preparation of activated carbon adsorption materials derived from coal gasification fine slag via low-temperature air activation

Cited by 5 publications

References 45 publications

Performance of Full-Component Coal Gasification Fine Slag: High-Value Utilization as Reinforcing Material in Styrene-Butadiene Rubber (ESBR) for Replacing Carbon Black

Performance of Full-Component Coal Gasification Fine Slag: High-Value Utilization as Reinforcing Material in Styrene-Butadiene Rubber (ESBR) for Replacing Carbon Black

Transforming Waste into Wealth: Advanced Carbon-Based Electrodes Derived from Refinery and Coal By-Products for Next-Generation Energy Storage

Synthesis of porous carbon/zeolite composites by low-temperature acid-alkaline leaching from coal gasification fine slag for adsorption of dye wastewater

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