Research on the reaction mechanism and modification distance of oil shale during high-temperature water vapor pyrolysis

Wang, Lei; Yang, Dong; Zhang, Yuxing; Li, Wenqing; Kang, Zhiqin; Zhao, Yangsheng

doi:10.1016/j.energy.2022.125213

Cited by 25 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a natural material, rock has characteristics such as discontinuity, heterogeneity, and anisotropy 22 , 23 . The distribution of primary and secondary joints in rock masses also exhibits randomness 24 . The discrete method is an essential factor that affects the accuracy of discrete numerical calculation methods 25 .…”

Section: Numerical Simulation Experiments Verificationmentioning

confidence: 99%

Research on reasonable layout parameters of working faces based on the concept of harmonic extraction to reduce the damage of coal seam waiting for upward mining

Jing,

Zhicheng,

Weiming

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Based on the idea of harmonic extraction, the problem of reducing the damage of the coal seam waiting for upward mining. Using the theoretical analysis method, a schematic diagram of coordinated mining along the dip direction of coal seam is established, and the calculation method of reasonable layout parameters of coal seam working face early mining is given. Based on the upward mining problem of the No.1 coal seam in the fifth panel of Zaoquan Coal Mine, the influence parameters of the No.2 coal seam, No.6 coal seam and No.7 coal seam mining on the No.1 coal seam were determined by similar simulation test. Then, the layout parameters of working face were determined. The research method of numerical calculation was used to evaluate the degree and uniformity of movement and deformation of the No.1 coal seam, combining five indicators: subsidence, horizontal movement, inclined deformation, curvature deformation, and horizontal deformation. The results indicate that when the working face is arranged using the layout parameters provided in this article, it can promote the further subsidence of the No.1 coal seam at the position of the remaining coal pillar. The movement and deformation indicators of the No.1 coal seam all reach the most uniform degree of the geological mining conditions, which can effectively offset the uneven deformation problem of the No.1 coal seam caused by the influence of the remaining coal pillars, making multiple mining operations a favorable condition for upward mining and achieving the goal of reducing the damage of the No.1 coal seam.

show abstract

Section: Numerical Simulation Experiments Verificationmentioning

confidence: 99%

Research on reasonable layout parameters of working faces based on the concept of harmonic extraction to reduce the damage of coal seam waiting for upward mining

Jing,

Zhicheng,

Weiming

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…This, in turn, leads to a higher concentration of toxic and hazardous gases, such as nitrogen oxides and sulfur oxides, in the surrounding air, posing a serious threat to the ecological environment [2][3][4]. With its excellent isothermal performance, the gravity heat pipe (GHP) can rapidly transfer the deep-seated accumulated heat to the ground, effectively preventing an increase in the internal temperature of the gangue dump [5][6][7]. Therefore, the GHP can effectively control the environmental conditions within the gangue dump.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Influence of Wind Speed on the Start-Up Characteristics and Thermoelectric Generation Characteristics of Gravity Heat Pipe in Gangue Dump

et al. 2023

View full text Add to dashboard Cite

As an efficient heat exchange component, the gravity heat pipe can effectively control the accumulated temperature inside gangue dumps and enable reuse of transferred heat. This study establishes a similar simulation experimental platform for gravity heat pipes to control gangue dumps and thermoelectric generation. The influence of wind speed on the start-up performance and isothermal performance of gravity heat pipes is analyzed, along with the impact of wind speed on their thermoelectric generation performance. Initially, the optimal working fluid height and heating height are determined, followed by a comparison and analysis of the isothermal performance, start-up performance, and thermoelectric generation performance of the gravity heat pipe under different wind speeds. The results indicate that at a wind speed of 1.0 m/s, the gravity heat pipe exhibits better start-up and isothermal performance. At a wind speed of 2.0 m/s, the thermoelectric power generation reaches its peak. In the range of 1.0~2.0 m/s wind speeds, the curve of thermoelectric generation exhibits the most fluctuations.

show abstract

Emulsification characteristics and dehydration of shale oil emulsions under high-frequency electric field

Yang,

Cheng,

Wang

et al. 2024

Chemical Engineering and Processing - Process Intensification

View full text Add to dashboard Cite

Research on the reaction mechanism and modification distance of oil shale during high-temperature water vapor pyrolysis

Cited by 25 publications

References 27 publications

Research on reasonable layout parameters of working faces based on the concept of harmonic extraction to reduce the damage of coal seam waiting for upward mining

Research on reasonable layout parameters of working faces based on the concept of harmonic extraction to reduce the damage of coal seam waiting for upward mining

Experimental Study on the Influence of Wind Speed on the Start-Up Characteristics and Thermoelectric Generation Characteristics of Gravity Heat Pipe in Gangue Dump

Emulsification characteristics and dehydration of shale oil emulsions under high-frequency electric field

Contact Info

Product

Resources

About