Results 71 to 80 of about 3,295 (188)

Research on the mechanism of fracture grouting diffusion and its application based on slurry-rock mass coupling effect

Meitan kexue jishu
The deep mining process of North China type coalfields is highly threatened by the threat of water damage from the floor limestone aquifer. By arranging grouting holes reasonably to inject a large amount of slurry into the aquifer that directly threatens
Minglei ZHAI, Haibo BAI
doaj   +1 more source

Study on stability of coal water slurry under different coal water slurry dispersants by using stability analyzer

IOP Conference Series: Materials Science and Engineering, 2019
Abstract The stability analysis of CWS by Turbiscan Lab stability analyzer not only can clearly observe the change of the supernatant layer in the slurry, but also can observe the change of the turbid area. It can objectively reflect the agglomeration and flocculation in the slurry, Settlement and a series of changes.
Lei Ge, Junguo Li
openaire   +1 more source

Modulation of Oxygen Vacancies on Cu/ZnO by Promoter for Higher Alcohol Synthesis From Syngas

ChemistryOpen, Volume 15, Issue 6, June 2026.
Oxygen vacancy (Ov) formation is modulated by promoter incorporation. Additional metal atoms are inserted into ZnO tetrahedral sites in CZA and CZG, thereby promoting vacancy growth. In contrast, a CuCr2 bimetallic phase is produced in CZC, suppressing ZnO defects. Enhanced Ovs promote ethanol formation.
Min Tian, Enjuan Ma, Xing Tian, Wei Huang, Shirong Li   +4 more
wiley   +1 more source

Properties of novel bio-cementation slurry and its effectiveness in preventing and controlling coal spontaneous combustion

Meitan xuebao
Coal spontaneous combustion poses a significant safety hazard during coal mining, leading not only to resource wastage and environmental pollution but also potentially triggering severe mine fire accidents.
Xiangming HU, Haozhen XUAN, Mingyue WU, Xinlei YANG, Mingming FU, Qian ZHANG, Haigang DU   +6 more
doaj   +1 more source

Study of making coal water slurry with lignite Pendopo coal

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The Coal Water Slurry (CWS) technology increases the calorific value and changes the phase of coal from solid to liquid. The CWS Plant with a coal capacity of 1.4 t/hour located at Karawang, West Java converts lignite coal to CWS. Coal undergoes pulverizing, upgrading, and slurry-making processes to become CWS.
openaire   +1 more source

Zirconium‐Based High Emissivity Multilayer Coating for Carbon/Carbon Composite With Enhanced Ablation Resistance

International Journal of Applied Ceramic Technology, Volume 23, Issue 3, June 2026.
ABSTRACT A multilayer coating system was developed as an ablation and thermal protection measure for C/C composites. The multilayer coating architecture consists of SiC, ZrB2‐SiC (ZBS), and ZrC‐ZrO2 (ZZC) sublayers with a Sm2O3‐ZrO2 (SZC) topcoat.
Abdullah Al Saad, Michael Helminiak, Molly M. O'Connor, Michael Brennan, Carlos J. Martinez, Rodney W. Trice   +5 more
wiley   +1 more source

Structural evolution of coal sludge filter cake and optimization mechanism of combined chemicals in the process of filtration pressing

Meitan xuebao
The structure of coal sludge filter cake has an important influence on the dewatering effect. In this study, the characteristics of the filter cake structure and its evolution law in the process of filter press dewatering were investigated by using the ...
Xiaomin MA, Xiaosong SUN, Xianshu DONG, Yuping FAN, Ming CHANG   +4 more
doaj   +1 more source

Site tracing experiment on the diffusion range of regional grouting renovation under the coal seam floor aquifer

Meitan xuebao
In recent years, to liberate coal resources from high pressure limestone water on the coal seam floor, North China Coalfields have generally adopted surface directional drilling technology to carry out regional grouting reinforcement and transformation ...
Yan GUO, Herong GUI, Huang HONG, Yongqing CHEN, Xiaoyu SUN, Rongjie HU, Xiangdong GUO, Qun ZHAO, Yanan DAI, Hao YU, Jun LI, Liang SUN, Chuan GAO   +12 more
doaj   +1 more source

Numerical Analysis of Fracture Failure Behavior of Refractory Lining in Coal-Water Slurry Gasifier. [PDF]

ACS Omega, 2022
Gao J, Shi Y, Su W, Song X, Wang J, Yu G.   +5 more
europepmc   +1 more source

Gasification of Coal and Heat Integration Modification for IGCC - Integrated Gasification Combined Cycle

Chemical Engineering Transactions, 2015
Use of energy is closely related to the development of an economy. The most useful form of energy in the modern world is electricity. IGCC has higher fuel flexibility (biomass, refinery residues, petroleum coke, etc.) and generates multiple products ...
D. Amer, M. Gadalla, F. Ashour
doaj   +1 more source