Results 31 to 40 of about 114,749,788 (242)

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

Archeologische begeleiding plangebied Poeldonk te Den Dungen, Gemeente Sint-Michielsgestel

open access: yes, 2021
In 2018 en 2019 heeft Ex-Situ Archeologie een archeologische begeleiding uitgevoerd volgens het protocol proefsleuven en/of opgraving in het plangebied Poeldonk te Den Dungen in de gemeente Sint- Michielsgestel.
Hoegen, drs R.D. (Ex-Situ Archeologie B.V.)
core   +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

Biodiesel production from jatropha seeds: Solvent extraction and in situ transesterification in a single step [PDF]

open access: yes, 2013
The objective of this study was to investigate solvent extraction and in situ transesterification in a single step to allow direct production of biodiesel from jatropha seeds.
Evon, Philippe   +4 more
core   +1 more source

Combustion and slow pyrolysis of oil palm stones and palm kernel cake [PDF]

open access: yes, 2011
Biomass is an important new energy source because it is indigenous to every part of the world, inexpensive and renewable. Malaysia’s ability to produce and consistently export a large quantity of high quality palm oil has made it one of the major ...
Raja Deris, Raja Razuan
core   +6 more sources

In-situ pyrolysis mining theory and technical conception of controllable and spontaneous combustion of tar-rich coal

open access: yesMeitan xuebao
As a strategic coal-based oil and gas resource, tar-rich coal is abundant in China. The development of oil and gas resources rich in oil and coal is of great strategic value to ensure China’s energy security and help the “double carbon” goal and energy ...
Jun DENG   +10 more
doaj   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Study on pyrolysis characteristics of oil-rich coal under in-situ conditions and industrial-scale extraction simulation

open access: yesFrontiers in Earth Science
IntroductionIn-situ pyrolysis technology for oil-rich coal represents a low-carbon resource development strategy characterized by ‘hydrogen extraction and carbon retention,’ holding significant importance for advancing the efficient exploitation of coal ...
Xiao Li   +18 more
doaj   +1 more source

Current status and development directions of surface and in-situ low-carbon development and utilization technologies for oil-rich coal in Xinjiang [PDF]

open access: yesYouqicang pingjia yu kaifa
Xinjiang has significant advantages in oil-rich coal resources. The efficient and clean utilization of these resources can ensure the supply of oil and gas resources, promote the effective utilization of deep coal resources, and mitigate environmental ...
WEI Bo, YANG Shuguang, LI Xin, TANG Zhuyun, ZHANG Na, WANG Bo, ZHAO Chen, LI Jinru, ZHAO Zhengwei, FENG Shuo, JIA Chao
doaj   +3 more sources

Evolution features of in-situ permeability of low-maturity shale with the increasing temperature, Cretaceous Nenjiang Formation, northern Songliao Basin, NE China

open access: yesPetroleum Exploration and Development, 2022
Temperature-triaxial pressure permeability testing at the axial pressure of 8 MPa and confining pressure of 10 MPa, closed shale system pyrolysis experiment by electrical heating and scanning electron microscopy analysis are used to study the evolution ...
Wenyuan HE   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy