Results 31 to 40 of about 55,369 (305)

From Triazines to Heptazines [PDF]

open access: yes, 2006
The first non-metal tricyanomelaminates have been synthesized via metathesis reactions and characterized by means of single-crystal X-ray diffraction and vibrational and solid-state NMR spectroscopy. The crystal structures of [NH4]2[C6N9H] (1) (P21/c, a =
Lotsch, Bettina V., Schnick, Wolfgang
core   +1 more source

Productivity Analysis of Fuyu Oil Shale In-Situ Pyrolysis by Injecting Hot Nitrogen

open access: yesEnergies, 2021
In this paper, the effect of heat injection on productivity of Fuyu oil shale during in-situ pyrolysis was studied by using heat flow coupling analysis method.
Shuai Zhao   +3 more
doaj   +1 more source

Evolution of pore structure, submaceral composition and produced gases of two Chinese coals during thermal treatment [PDF]

open access: yes, 2017
This research was funded by the Research Program for Excellent Doctoral Dissertation Supervisor of Beijing (grant no. YB20101141501), the Fundamental Research Funds for Central Universities (grant no.
Cai, Yi-Dong   +4 more
core   +1 more source

Effects of titania based catalysts on in-situ pyrolysis of Pavlova microalgae [PDF]

open access: yesFuel Processing Technology, 2017
Pavlova microalga was pyrolysed in presence of titania based catalysts in a fixed bed reactor at various temperatures. The effects of catalysts on Pavlova microalga pyrolysis were investigated. A large fraction of the starting energy (∼ 63–74% daf) was recovered in the bio-oils when the catalysts were used.
Aysu, Tevfik   +3 more
openaire   +4 more sources

Macro and Meso Characteristics of In-Situ Oil Shale Pyrolysis Using Superheated Steam

open access: yesEnergies, 2018
The efficiency of oil shale pyrolysis is directly related to the feasibility of in-situ mining technology. Taiyuan University of Technology (China) proposed the technology of in-situ convective heating of oil shale, which uses superheated steam as the ...
Lei Wang   +5 more
doaj   +1 more source

Influence of Catalyst on the Yield and Quality of Bio-Oil for the Catalytic Pyrolysis of Biomass: A Comprehensive Review

open access: yesEnergies, 2023
In the modern world, as the population rises and fossil fuel supplies decline, energy demands continue to rise. Moreover, the use of fossil fuels harms the ecology, contributing to pollution and global warming.
Md Sumon Reza   +10 more
doaj   +1 more source

Evaluation of the porosity and permeability of oil shale during in-situ conversion process through numerical simulation and mathematical modeling [PDF]

open access: yesOil Shale, 2020
In this paper a simulation model of oil shale formation is generated in which the reservoir is heated by downhole heaters and subsurface solid kerogen is converted into liquid and gas hydrocarbons by the function of chemical reactions, temperature and ...
Atif Zafar   +5 more
doaj   +1 more source

In Situ Formation of SiC/CNT Ceramic Nanocomposite by Phenolic Pyrolysis [PDF]

open access: yesMechanics of Advanced Composite Structures, 2014
In this research, using pyrolysis of phenolic resin in the presence of silicon particles, the SiC ceramic composite is formed. The samples were prepared by introducing 30, 35, 40, 45 and 50 wt% of Si particles to the phenolic resin.
Hamid Salehi, Manouchehr Salehi
doaj   +1 more source

Correlation between the surface infrared radiation and deformation characteristics of oil shale during uniaxial compression; pp. 70–88 [PDF]

open access: yesOil Shale, 2020
The emission of infrared radiation from oil shale is, compared with other rocks, more intense due to the anisotropy during deformation. In this research, cracks in oil shale specimens were scanned with computed tomography (CT) scanning equipment, and the
Shaoqiang Yang, Dong Yang, Jing Zhao
doaj   +1 more source

Case study of viability of bioenergy production from landfill gas (LFG) [PDF]

open access: yes, 2016
The landfill gas (LFG) produced from the existing landfill site in Heraklion city, Crete island, Greece, is not currently exploited to its full potential.
Skoulou, Vasiliki K., Vourdoubas, John
core   +1 more source

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