Results 21 to 30 of about 121 (105)

Characterization of the fishing asphaltites in Boyacá-Cantera Santa Teresa

open access: yesRevista Ingenio, 2013
The purpose of this research article is to show the characterization and design of MDC-2-INVIAS 2007 type bituminous mixtures with stone aggregates and asphaltite conglomerates from the Santa Teresa de Pesca mine - Boyacá, following the MODIFIED MARSHALL
Carlos Hernando Higuera Sandoval   +2 more
doaj   +1 more source

Unprecedented 34S‐enrichment of pyrite formed following microbial sulfate reduction in fractured crystalline rocks

open access: yesGeobiology, Volume 16, Issue 5, Page 556-574, September 2018., 2018
Abstract In the deep biosphere, microbial sulfate reduction (MSR) is exploited for energy. Here, we show that, in fractured continental crystalline bedrock in three areas in Sweden, this process produced sulfide that reacted with iron to form pyrite extremely enriched in 34S relative to 32S.
Henrik Drake   +8 more
wiley   +1 more source

Assessment of simultaneous incorporation of crumb rubber and asphaltite in asphalt binders

open access: yesDyna, 2019
Every day, roads are submitted to greater stresses. Thereby, additives have been incorporated to asphalt mixtures to enhance pavements performance. The purpose of this experimental study is to characterize for the first time, to date, the viscoelastic ...
Javier Eduardo Mantilla Forero   +1 more
doaj   +1 more source

Investigation of the cleanability of asphaltite by flotation

open access: yesChemical Physics Letters, 2021
Abstract Southeastern Anatolia Region of Turkey/Sirnak asphaltites centers are located in and around large reserves in coal mines. Due to the high ash and sulfur content of asphaltite coal, it is important to use it by cleaning with enrichment methods, in terms of solving environmental problems and increasing energy quality.
openaire   +2 more sources

Investigation of surface properties of Avgamasya asphaltite

open access: yesFuel Processing Technology, 1994
Abstract Surface properties of Avgamasya asphaltite were investigated by the adsorption method using N 2 and CO 2 gases. In order to see the effect of ash content and pyrolysis temperature on the surface properties of asphaltite, samples were washed with 15% (v/v) HCl to reduce the ash content, and then pyrolyzed in a nitrogen atmosphere between ...
Afife Güvenç   +3 more
  +6 more sources

Gilsonite exploration by using electrical resistivity tomography with multi-electrode gradient array: A case study in Rionegro (Colombia)

open access: yesRevista UIS Ingenierías, 2020
Subsurface exploration using geophysical methods has increased the prospective economic possibilities for new non-metallic minerals and other raw materials such as solid hydrocarbons.
Yesid Paul Goyes-Peñafiel   +2 more
doaj  

Asphaltite Pyrolysis in Fluidized Bed Reactor

open access: yesGazi University Journal of Science Part A: Engineering and Innovation, 2023
In this study, the pyrolysis properties of asphaltite samples taken from Şırnak and Hakkari regions in a fluidized bed reactor under catalyst and non-catalyst conditions were determined by rapid and batch pyrolysis. Basic analysis, FTIR and XRF analyses were performed for the raw material.
Samad MOGHANIRAHIMI, Hüseyin TOPAL
openaire   +3 more sources

Antum Crater: A Window Into Ganymede's Icy Evolution

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Located within the extensive dark terrain of Marius Regio, in the anti‐Jovian trailing quadrant of Ganymede, Antum crater is marked by dark‐rayed ejecta that obscure older features and reshape the surrounding landscape. This study investigates Antum and its geological context using optical and infrared data from the Voyager and Galileo ...
Federico Tosi   +9 more
wiley   +1 more source

A review on thermogravimetric analysis‐based analyses of the pyrolysis kinetics of oil shale and coal

open access: yesEnergy Science &Engineering, Volume 12, Issue 1, Page 329-355, January 2024.
This paper examines oil shale and coal as the primary research subjects and summarizes recent progress in pyrolysis kinetics studies based on thermogravimetric analysis from the aspects of research methods, influencing factors, and research progress. Abstract Solid fossil fuels still support the development of the energy and chemical industry.
Yaoyu Li   +4 more
wiley   +1 more source

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