Results 41 to 50 of about 2,735 (205)

The characterization of a nanoscale MnNi cluster in thermally aged reactor pressure vessel steels

open access: yesMaterials Research Express, 2022
The MnNi-rich clusters or precipitates (MNPs) are one of the most important nanofeatures resulting in irradiation-induced embrittlement of reactor pressure vessel (RPV) steels.
Hailong Liu, Qiulin Li
doaj   +1 more source

In situ Generation of Fluoride Catalysts for CO2‐to‐Formic Acid Conversion With Silicon Reducing Agent

open access: yesChemistry – A European Journal, EarlyView.
Reductive conversion of CO2 to formic acid with waste silicon reducing agent catalyzed by in situ generation of active fluoride species from a tertiary amine, protonic acid, and simple inorganic fluoride salt, such as KF and NaF. ABSTRACT The activation and catalytic reduction of carbon dioxide (CO2) using silicon‐based reducing agents is an important ...
S. M. A. Hakim Siddiki   +6 more
wiley   +1 more source

First Operation Results of a Methanol Demonstration Plant With Real Steel Mill Gases

open access: yesChemie Ingenieur Technik, EarlyView.
A demonstration plant with industrial setup regarding length, diameter, boiling water cooling system and gas recycle was initially operated with cleaned blast furnace gas and compared with earlier experiments with bottle gases. Dynamic disturbances from the steel mill and gas cleaning unit were noticed and could be compensated by the control system ...
Johannes Michael Voß, Tim Schulzke
wiley   +1 more source

Size Effect on Fracture Toughness of A508-3 Steel Predicted by Using Beremin Model

open access: yesYuanzineng kexue jishu, 2022
Fracture toughness is an important index to characterize the brittle state of reactor pressure vessel (RPV) steel. During the irradiation embrittlement study of RPV steel, small size compact tension (CT) specimens are generally used, because of the ...
ZHOU Henghui;ZHONG Weihua;NING Guangsheng;LIN Hu;YANG Wen
doaj  

Impact of Trace Water on the Macroscopic Activity of Commercial Ammonia Cracking Catalysts Under Process‐Relevant Conditions

open access: yesChemie Ingenieur Technik, EarlyView.
This study evaluates how small water impurities—typical in ammonia cracking feedstock—affect catalyst performance at elevated pressures and temperatures. By decoupling permanent degradation from reversible inhibition, the findings highlight trace water as a significant factor for reliable catalyst screening and industrial ammonia cracking scale‐up ...
Bruno V. P. Lago   +6 more
wiley   +1 more source

Photofission Analysis for Fissile Dosimeters Dedicated to Reactor Pressure Vessel Surveillance

open access: yesEPJ Web of Conferences, 2016
Fissile dosimeters are commonly used in reactor pressure vessel surveillance programs. In this paper, the photofission contribution is analyzed for in-vessel 237Np and 238U fissile dosimeters in French PWR.
Bourganel Stéphane   +2 more
doaj   +1 more source

Durene conversion in a methanol‐to‐jet process: Exploring conversion at 150–350°C over different acid catalysts

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Acid catalyzed conversion of durene by isomerization, disproportionation, and transalkylation is of interest to the development of a methanol‐to‐jet process to reduce the amount of durene in the kerosene. It was of interest to determine whether durene conversion could be performed at a temperature lower than 350°C.
Aida G. Velasco Ortiz   +2 more
wiley   +1 more source

Electrical resistance tomography for process intensification of gas–liquid stirred tanks: A comparison of linear back projection and sensitivity conjugate gradient algorithms

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Monitoring gas–liquid dynamics using Electrical resistance tomography for process intensification in stirred tanks Abstract Electrical resistance tomography (ERT) is a non‐invasive technique widely applied to the study of multiphase flows, where phases exhibit different electrical properties.
Federico Alberini   +2 more
wiley   +1 more source

Thermodynamic Alloy Design of High Strength and Toughness in 300 mm Thick Pressure Vessel Wall of 1.25Cr-0.5Mo Steel

open access: yesMetals, 2018
In the 21st century, there is an increasing need for high-capacity, high-efficiency, and environmentally friendly power generation systems. The environmentally friendly integrated gasification combined-cycle (IGCC) technology has received particular ...
Hye-sung Na   +3 more
doaj   +1 more source

Experimental methods in chemical engineering: Magnetometry

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Magnetometry is a non‐invasive technique to characterize the behaviour of magnetic materials of which the most common contain Fe, Co, and Ni. Vibrating sample magnetometers (VSMs) vibrate samples at a fixed frequency in a static, homogeneous magnetic field to induce a voltage in pick up coils according to Faraday's law of induction.
Michael Claeys   +3 more
wiley   +1 more source

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