Results 71 to 80 of about 451,390 (293)

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Atmospheric diffusion study of surface leakage from CO2 enhanced oil recovery with carbon capture and storage based on flux monitoring-CFD simulation [PDF]

open access: yesYouqicang pingjia yu kaifa
CO2 enhanced oil recovery(EOR) with carbon capture and storage(CCS) projects offer dual benefits of increasing oil recovery and CO2 storage, making it one of the most economically viable carbon sequestration methods nowadays.
QU Changqing, LIN Qianguo
doaj   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Impact of fractures on convective-mixing characteristics of carbon dioxide in saline aquifers

open access: yes工程科学学报
Fractures serve as the main channels for rapid CO2 diffusion and escape during sequestration in saline aquifers. While existing studies have focused on how fracture characteristics and chemical reactions affect CO2 convective mixing, the specific ...
Qigui TAN   +3 more
doaj   +1 more source

Isotope (14C and 13C) analysis of deep peat CO2 using a passive sampling technique [PDF]

open access: yes, 2009
We developed and tested a new method to collect CO<sub>2</sub> from the surface to deep layers of a peatland for radiocarbon analysis. The method comprises two components: i) a probe equipped with a hydrophobic filter that allows entry of ...
Garnett, M.H., Hardie, S.M.L.
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Hydrogen production by sorption-enhanced steam reforming of glycerol [PDF]

open access: yes, 2009
Catalytic steam reforming of glycerol for H(2) production has been evaluated experimentally in a continuous flow fixed-bed reactor. The experiments were carried out under atmospheric pressure within a temperature range of 400-700 degrees C.
Blakeman, N   +7 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

Research progress on characteristics of leakage and diffusion of buried CO2 pipeline

open access: yesYou-qi chuyun
Objective CO2 pipeline transmission, a key link in the industrial chain of carbon capture, utilization, and storage (CCUS) technology, is exposed to risks of accidental leakage during operation.
Junpeng ZHANG   +7 more
doaj   +1 more source

Oxidation kinetics of chromium and morphological phenomena [PDF]

open access: yes, 1989
The oxidation kinetics of chromium at 900°C are independent of the oxygen partial pressure. Although this observation gives evidence for a defect mechanism where chromium interstitials account for the chromium transport in the oxide scale, the ...
Fransen, T.   +2 more
core   +3 more sources

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