2) coalification course 成煤过程3) formation process 形成过程 1. A study of the formation process of the geopolymer gel; 矿物聚合材料基体相的形成过程研究 2. On formation process and influential factors of constructional project's quality 浅析建设工程质量形成过程与影响因素 3. Based on the...
SUBSTANCE: process can be utilized for intensification of outgassing. Technical result of invention lies in increased safety of mining operations thanks to more complete outgassing of coal formation through holes by rise of pressure, temperature and range of action of cracks and pores in formation. ...
4) transgressive coal formation 海侵成煤作用5) fossilize into coals 化石作用而成为煤6) coal controlling 控煤作用 例句>> 补充资料:煤的变质作用(见成煤过程) 煤的变质作用(见成煤过程) metamorphism of coal mel由玩anzhi zuoyong煤的变质作用(metamorPhism。f coal)‘见成煤过程。 说明:补充资料仅...
coal conversion process are reviewed.①Firstly,the physical and chemical properties,the origin of PAHs and sampling and analysis of PAHs are presented.②Secondly,the influences concerning PAHs formation and emission during coal processing are analyzed.③Finally,the research methods about the formation ...
under simulated coal gas (SCG) without reforming catalyst, the CP-RSCG process can further improve tar yield, which is attributed to the catalytic activation of SCG over Ni-based catalyst to produce active center dot H and center dot CHx free radicals and their participation in tar formation. ...
在这项研究,一个光化学β分裂过程在围绕[translate] aThe release of gases (CO2, NXOY) plays as soft templates in the process of formation of Co3O4 porous hollow nanostructure 气体二氧化碳, NXOY (戏剧发行) 作为软的模板在Co3O4多孔空心nanostructure的形成过程中[translate]...
Energy produced by photosynthesis carried out by plants millions of years ago is responsible for thefossil fuels(i.e.,coal,oil, andgas) that powerindustrial society. In past ages, green plants and small organisms that fed on plants increased faster than they were consumed, and their remains we...
4. Conditions for Formation: As more soil accumulated over the buried vegetation, it experienced high pressure and temperature conditions. 5. Transformation Process: The dead vegetation underwent a slow transformation process due to these conditions, gradually converting into coal. 6. Carbonization: This...
In addition, other gases such as CO in coal gas also promote the formation of tar during the coal pyrolysis process [20], [21], [22]. Our previous studies showed that coal pyrolysis under simulated coal gas (SCG) can improve tar yield compared with that under inert atmosphere [23]. It...
Understanding coal permeability as impacted by thermal damage is crucial to the detection of coal and gas hazards in deep coal mining. In this study, tri-axial compression experiments were performed to examine the damage and the permeability evolution process of methane-containing coal under different...