4.7 Article

Study on co-slurry and co-combustion characteristics of coal and modified-coal gasification fine slag

Related references

Note: Only part of the references are listed.
Article Energy & Fuels

Study on characteristics of coal gasification fine slag-coal water slurry slurrying, combustion, and ash fusion

Chuandong Ma et al.

Summary: The effects and mechanisms of CGFS-CWS preparation, combustion, and ash fusion were investigated. Increasing CGFS content led to higher slurry viscosity but improved slurry stability. The improved stability was attributed to the stronger negative charge on the CGFS surface, facilitating particle dispersion. Combustion experiments showed that CGFS incorporation significantly lowered the burnout temperature and increased the maximum combustion rate of the slurry. Addition of CGFS also reduced the ash fusion temperature by promoting melting-assisting effects.
Review Environmental Sciences

Preparation and application of porous materials from coal gasification slag for wastewater treatment: A review

Ning Yuan et al.

Summary: Coal gasification slag (CGS) is being recognized as a valuable resource for preparing porous materials with excellent adsorption performance for removing water pollutants, making it an effective and economical alternative solution. There are promising research prospects for further exploration in the development of CGS-based porous materials.

CHEMOSPHERE (2022)

Article Thermodynamics

Investigation on co-combustion of coal gasification fine ash and raw coal blends: Thermal conversion, gas pollutant emission and kinetic analyses

Jiawei Li et al.

Summary: This study investigated the co-combustion of coal gasification fine ash (CGFA) and raw coal (RC), exploring its thermal conversion, synergistic behavior, kinetics, thermodynamics, and gas release behavior. The results demonstrated that adding RC to CGFA enhanced the combustion performance of CGFA and reduced the formation of polluting gases. This research contributes to the development of new energy strategies utilizing CGFA combustion.

ENERGY (2022)

Article Energy & Fuels

Study on the preparation of coal wastewater slurry from salt/alkali wastewater

Lin Li et al.

Summary: The presence of NaCl affects the viscosity of coal wastewater slurry, while the presence of CO32 hinders the adsorption of sodium lignosulfonate. HCO3 reduces the negative charge on coal particles, decreasing the apparent viscosity.
Article Environmental Sciences

Enrichment of residual carbon from coal gasification fine slag by spiral separator

Wei Yu et al.

Summary: This paper studies the enrichment behavior of residual carbon in coal gasification fine slag by a spiral separator. The experimental results show that the spiral separator efficiently removes ash and enriches carbonaceous components in the slag, producing a concentrate product with higher combustion reactivity and iodine adsorption ability. This research has great significance in the development of utilizing coal gasification fine slag and recovering residual carbon.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

Article Energy & Fuels

The Enhancement on Rheology, Flowability, and Stability of Coal Water Slurry Prepared by Multipeak Gradation Technology

Shunxuan Hu et al.

Summary: Multipeaking gradation technology is crucial for improving the slurry ability of coal particles. Different ratios of coarse, fine, and micro particles were studied in preparing coal water slurry (CWS), with interval bimodal CWS demonstrating the best stability and flowability. The presence of microparticles plays a dual role in preparing highly concentrated CWS.

ENERGY & FUELS (2021)

Article Chemistry, Physical

Investigation of the Characteristics of Catalysis Synergy during Co-Combustion for Coal Gasification Fine Slag with Bituminous Coal and Bamboo Residue

Yixin Zhang et al.

Summary: Coal gasification fine slag is a solid waste that poses a threat to the environment and human body from coal chemical production. Rational utilization is crucial, as the high heating value makes it difficult to burn solely in combustion devices. Co-combustion with other fuels can improve combustibility but increasing the proportion of fine slag can worsen combustion characteristics. Synergistic and antagonistic interactions play a role in the combustion process, with catalysts from the raw fuels and oxygen diffusion impacting the combustion reaction.

CATALYSTS (2021)

Article Energy & Fuels

The microwave absorption properties of residual carbon from coal gasification fine slag

Shengtao Gao et al.

Summary: The residual carbon extracted from coal gasification fine slag via acid leaching process exhibits good thermal stability and microwave absorption properties, making it a competitive and cheap alternative source for microwave absorber.
Review Engineering, Chemical

Review of the characteristics and graded utilisation of coal gasification slag

Xiaodong Liu et al.

Summary: The treatment of coal gasification slag is crucial for the sustainable development of coal chemical enterprises. Finding a simple and efficient comprehensive utilization method is necessary to solve environmental problems and increase economic benefits.

CHINESE JOURNAL OF CHEMICAL ENGINEERING (2021)

Article Energy & Fuels

Functional group characteristics and pyrolysis/combustion performance of fly ashes from Karamay oily sludge based on FT-IR and TG-DTG analyses

Wenlong Mo et al.

Summary: The fly ashes from the primary cyclone separator, the secondary cyclone separator, and the bag-type dust collector of an industrial oily sludge pyrolyzer were characterized and studied. The results showed significant differences in pyrolysis and combustion performance among the three types of fly ash, with the bag-type dust collector demonstrating the best combustion characteristics.
Article Chemistry, Physical

Evaluation of the Thermal Behavior, Synergistic Catalysis, and Pollutant Emissions during the Co-Combustion of Sewage Sludge and Coal Gasification Fine Slag Residual Carbon

Yang Guo et al.

Summary: The co-combustion of sewage sludge and coal gasification fine slag residual carbon can improve ignition and burnout properties, maintain combustion stability, and enhance comprehensive combustion performance.

CATALYSTS (2021)

Article Engineering, Chemical

Effects of coal slime on the slurry ability of a semi-coke water slurry

Zhuoyue Meng et al.

POWDER TECHNOLOGY (2020)

Review Mining & Mineral Processing

Intelligent and ecological coal mining as well as clean utilization technology in China: Review and prospects

Guofa Wang et al.

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY (2019)

Article Thermodynamics

Thermogravimetric analysis of the co-combustion of paper mill sludge and municipal solid waste

Shanchao Hu et al.

ENERGY CONVERSION AND MANAGEMENT (2015)

Article Chemistry, Physical

Changes in surface properties of anthracite coal before and after inside/outside weathering processes

Wencheng Xia et al.

APPLIED SURFACE SCIENCE (2014)

Article Energy & Fuels

Rheological behavior of coal-water slurry

SK Mishra et al.

ENERGY SOURCES (2002)