Advanced search
Publication Cover
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 45, 2023 - Issue 4
Submit an article Journal homepage
105
Views
0
CrossRef citations to date
0
Altmetric
Research Article

Stability properties of slurry based on coal-to-liquid gasification ash slag

Xiaowei Zhaia College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, China;b Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an, Shaanxi, China;c Mine Emergency Rescue Innovation Team, The Youth Innovation Team of Shaanxi University, Xi’an, Shaanxi, ChinaCorrespondence[email protected]
View further author information
,
Yujie Zhoua College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, China;b Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an, Shaanxi, China;c Mine Emergency Rescue Innovation Team, The Youth Innovation Team of Shaanxi University, Xi’an, Shaanxi, ChinaView further author information
,
Duo Zhanga College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, China;b Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an, Shaanxi, China;c Mine Emergency Rescue Innovation Team, The Youth Innovation Team of Shaanxi University, Xi’an, Shaanxi, ChinaView further author information
,
Bobo Songa College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, China;b Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an, Shaanxi, China;c Mine Emergency Rescue Innovation Team, The Youth Innovation Team of Shaanxi University, Xi’an, Shaanxi, ChinaView further author information
&
Le Haoa College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi, China;b Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an, Shaanxi, China;c Mine Emergency Rescue Innovation Team, The Youth Innovation Team of Shaanxi University, Xi’an, Shaanxi, ChinaView further author information
Pages 9731-9742 | Received 21 Feb 2023, Accepted 16 Jul 2023, Published online: 01 Aug 2023
 
Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days

ABSTRACT

The coal-to-liquid gasification ash and slag (GAS) is a solid waste with high yield, difficult degradation and environmental hazards. In this study, a novel extinguishing grouting material was made in the light of GAS, and carboxymethyl cellulose (CMC) was introduced as a dispersant for GAS slurry for easy blockage and bursting of pipes during the transportation of grouting material. Zeta-potential measurement, X-ray fluorescence and water separation experiment were utilized to discuss the mechanism and suspension stability of GAS slurry with different water-cement ratios and amount of CMC addition. The fire extinguishing material and the optimal mixing ratios were also obtained. The content of SiO2, Fe2O3, CaO and Al2O3 in GAS accounted for more than 80% of the total composition, and the main substances were gypsum, quartz and calcite. CMC had a prominent improvement effect on the suspension stability of slurry, and the more the added dosage, the stronger the suspension stability. The slurry suspension stability was maintained by steric hindrance and electrostatic repulsion; when the water-cement ratios were 1: 0.8, 1: 1.0 and 1:1.4, the optimal addition amounts of CMC were 1.5%, 1.25% and 0.75%, respectively.

Graphical abstract

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant numbers [51974236]), Natural Science Basic Research Program of Shaanxi Province (Grant numbers [2021JC-48]), and Central Government for Local Science and Development of Shaanxi Province (Grant numbers [bcby-2020-02]). The authors also acknowledge the Key Laboratory of Coal Fire and Hazard Prevention in Shaanxi Province, China.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The work was supported by the National Natural Science Foundation of China [51974236]; Natural Science Basic Research Program of Shaanxi Province [2021JC-48]; Central Government for Local Science and Development of Shaanxi Province [bcby-2020-02].

Notes on contributors

Xiaowei Zhai

Xiaowei Zhai Ideas and experimental protocols, Supervision, Review, Funding acquisition.

Yujie Zhou

Yujie Zhou Writing- review & editing, Experiments, Analysis, Revises.

Duo Zhang

Duo Zhang Methodology, Review.

Bobo Song

Bobo Song Experiments, Review.

Le Hao

Le Hao Analysis, Review.

Log in via your institution

Access through your institution

Log in to Taylor & Francis Online

Restore content access

Restore content access for purchases made as guest
Purchase options * Save for later

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.