Results 91 to 100 of about 14,235 (292)

A surface-subsurface model for the tecno-economic and risk evaluation of thermal EOR projects [PDF]

, 2011
The global resources of unconventional oil such as heavy oil, extra-heavy oil, and bitumen are vast and are expected to play an increasingly important role in meeting the world‘s future energy needs.
Badar, Al-Abri
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Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

Advanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li, Xin Zhao, Arsenii S. Portniagin, Yuxuan Wu, Desui Chen, Haochen Liu, Andrey L. Rogach   +6 more
wiley   +1 more source

Entropy‐Stabilized Aluminate Catalysts That Break the Activity–Stability Tradeoff in CF4 Hydrolysis

Angewandte Chemie, EarlyView.
Entropy‐stabilized aluminate breaks the activity–stability tradeoff in CF4 hydrolysis by combining a multication aluminate framework with an entropy‐stabilized lattice. An electron‐deficient Al–O environment is F‐philic but O‐phobic, enabling C–F activation while suppressing H2O poisoning. Under steam‐rich, strongly fluorinating conditions, the entropy‐
Seunghyuck Chi, Hyungmin Jeon, Yaejun Baik, DongHwan Oh, Jin Seok, Woosung Choi, Seungjun Lee, Minkee Choi   +7 more
wiley   +2 more sources

Valorization of urban biosolids for sustainable hydrogen production through steam gasification over silicon oxide sand [PDF]

E3S Web of Conferences
The present work addresses sustainable development and energy goals by investigating the valorization of urban biosolids into clean Hydrogen (H2) through steam gasification in a fluidized bed reactor at 850°C.
Boutarba Youssef, Benzaouak Abdellah, Ben Ali Majda, Nehhal Soukaina, Taouk Bechara, El Hamidi Adnane, Bellaouchou Abdelkbir, Abdelouahed Lokmane   +7 more
doaj   +1 more source

Theoretical Study of Direct Steam Generation in Two Parallel Pipes

Energy Procedia, 2014
AbstractIn this work it was simulated the direct steam generation (DSG) in a system of two horizontal parallel pipes by using the commercial simulator RELAP. The pipes were 500 m long, internal diameter 5cm, and wall thickness of 10mm. Pipes were fed with sub-cooled water and the output can be: 1) hot water, 2) a steam-water mixture, 3) overheated ...
Aguilar-Gastelum, F., Moya, S.L., Cazarez-Candia, O., Valenzuela, L.   +3 more
openaire   +1 more source

Ultrasonic phased array testing in the power generation industry : novel wedge development for the inspection of steam turbine blades roots [PDF]

The thesis presented herein comprises of the work undertaken to research novel methods of Phased array ultrasonic inspection of complex steam turbine blade roots as found in the power generation industry.
Charlesworth, Chris, Eng.D.
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Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording

Advanced Electronic Materials, EarlyView.
σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener, Alec Brewer, He Sun, Jack Twiddy, Vladimir A. Pozdin, Koji Sode, Alper Bozkurt, Michael Daniele   +7 more
wiley   +1 more source

Quantitative Photo‐Reforming of Biomass to CO Spurred by In Situ Protonation of Carbon Dioxide Radical Anions

Angewandte Chemie, EarlyView.
A “two‐in‐one” photoreduction strategy enabled by electron‐rich yolk Cd species both remote from and adjacent to sulfur vacancies is delivered to be ultraselective for the reduction of O2 and •CO2− in situ formed on the shell Bi2S3 composition (hole) by water oxidation and oxidative C–C cleavage of various biomass organic acids, furnishing CO with > 99%
Tengyu Liu, Jinshu Huang, Qizhi Luo, Song Yang, Anders Riisager, Hu Li   +5 more
wiley   +2 more sources

Modeling and experimental investigation on a direct steam generation solar collector with flat plate thermal concentration

Energy Exploration & Exploitation, 2020
Currently, steam generation using solar energy mostly relies on optical concentration, which is a costly system, to generate the high temperature needed for water evaporation.
Jingkang Liang, Xu Ji, Jingyang Han, Yunfeng Wang   +3 more
doaj   +1 more source

Coupling heat and electricity sources to intermediate temperature steam electrolysis

, 2012
The use of CO2-free energy sources for running SOEC (solid-oxide electrolysis cell) technologies has a great potential to reduce the carbon dioxide emissions compared to fossil fuel based technologies for hydrogen production.
Roeb, Martin, Monnerie, Nathalie, Petipas, Floriane, Canadas, Ignacio, Romero, Manuel, Sattler, Christian, Drisaldi Castro, Anabella, Palomino, Rocio, Lucero, Cristina, Sanz-Bermejo, Javier, Houaijia, Anis, Brisse, Annabelle, Monnerie , Nathalie   +12 more
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