Results 41 to 50 of about 22,610 (232)

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

Carbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song, Yakun Tang, Xiaojun Lv, Jingjing Diao, Yue Zhang, Wenhai Zhang, Lang Liu, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source

CARBON MODIFICATION OF BITUMEN

Вестник СибАДИ, 2019
Introduction. The causes of premature destruction of asphalt concrete coatings are aging and low quality of bitumen. The paper describes the methods for improving the bitumen properties.
K. V. Belyaev, I. L. Chulkova
doaj   +1 more source

The Effect of SBS Polymer on the Dynamic Properties of Asphalt [PDF]

علوم و تکنولوژی پلیمر, 2008
Polymer application for the improvement and modification of the bitumen used in roads surfaces has expanded in recent decades. The roads engineers and constructors, therefore, have used the modified bitumen in asphalts helping in this way to increase ...
H. Ziari, S.M. Abtahi, A. Goli
doaj   +1 more source

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

The Canadian Journal of Chemical Engineering, EarlyView.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada, Saleh S. Baakeem, Mabkhot BinDahbag, M. Daniela Contreras‐Mateus, Jesus Botett, Afif Hethnawi, Nashaat N. Nassar   +6 more
wiley   +1 more source

Separation and Recovery of Bitumen from Oil Sand by CO2 Desorption of Amine Solution

Journal of MMIJ
Bitumen extracted from oil sand has garnered increasing attention as an alternative energy source for fossil resources. Since oil sand consist of a mixture of bitumen (10-15 wt. %), water (4 wt. %), and sand (80 wt.
Jie REN, Hirokazu OKAWA, Takahiro KATO
doaj   +1 more source

Compositional Analysis of Bitumen and Bitumen-Derived Products [PDF]

Journal of Chromatographic Science, 1996
Th e America n Society for Testing Materials (ASTM ) procedures D2887 and D5307 are used for boiling range characterization of petroleum fractions up to 538°C (1000°F). Th e bitumens fro m the Uint a Basin (Utah ) contain approximatel y 60.0 wt % material boiling above 538°C (1000°F); hence, the AST M techniques leave major portions of the bitumens ...
M. Subramanian, M. D. Deo, F. V. Hanson
openaire   +1 more source

Impacts of refining Canadian partially upgraded bitumen: Fluid catalytic cracking

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract In this study, we examine the fluid catalytic cracking (FCC) performance of vacuum gas oil (VGO) from partially upgraded bitumen (PUB), a novel refinery feedstock from Canadian bitumen. FCC experiments were conducted in a lab‐scale FCC unit with VGOs from two different PUBs prepared using thermal cracking and solvent deasphalting, along with ...
Yi Zhang, Anton Alvarez‐Majmutov, Rafal Gieleciak, Jinwen Chen   +3 more
wiley   +1 more source

Modelling the costs of non-conventional oil: A case study of Canadian bitumen

, 2008
International audienceHigh crude oil prices, uncertainties about the consequences of climate change and the eventual decline of conventional oil production raise the issue of alternative fuels, such as non-conventional oil and biofuels.
Hope, Chris, Chris Hope, Méjean, Aurélie, Aurélie Méjean   +3 more
core   +2 more sources

Boosting Zinc‐Ion Hybrid Capacitors with Mesoporous Carbon Derived from Highly Graphitized Carbon Quantum Dots

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The work presents an innovative method for the preparation of mesoporous carbon materials (MCs) from highly graphitized carbon quantum dots. The zinc‐ion hybrid capacitors assembled with MCs deliver high rate performance and stability, providing promising advancements for future energy storage solutions.
Guoli Zhang, Huihui Li, Kaiyue Wang, Gang Li, Kaixi Li, Taotao Guan, Kaiying Wang   +6 more
wiley   +1 more source

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source