Results 111 to 120 of about 69,369 (299)

Numerical Study of Mild Combustion of Ammonia-hydrogen Mixtures

Chemical Engineering Transactions, 2023
The combustion of ammonia (NH3) has sparked a renewed interest in the scientific community because it is a carbon-free fuel that does not contribute to global warming. Nevertheless, some of its disadvantages include the fact that (i) it has lower laminar
Luis F. Cardona, Pedro N. Alvarado
doaj  

Optimization of multiple hearth furnace for biomass torrefaction [PDF]

, 2011
Gasification in entrained flow reactor and co-combustion of biomass in coal power plant are promising technologies of thermo-chemical conversion to produce electricity, heat, fuels and chemicals.
Chataing, Thierry, Commandre, Jean-Michel, Delpech, Françoise, Leboutte, Didier, Marc, Sébastien, Marty, Charlotte   +5 more
core  

Generalization of Oberlack’s definition of the MILD combustion regime

Fuel
The Oberlack definition of the MILD combustion limit for premixed systems was derived under the assumption of lean combustion and a one-step reaction. In this study, a generalization of this definition is presented by removing the lean combustion assumption, which leads to a more comprehensive relation between the Damköhler number and temperature ...
Adam Klimanek, Sławomir Sładek, Katarzyna Bizon, Wojciech Kostowski, Michał T. Lewandowski, Nils Erland L. Haugen   +5 more
openaire   +2 more sources

Alkali‐Metal Base Catalyzed Electrocyclization of Isoprene Derivatives

Chemistry – A European Journal, EarlyView.
Simple and abundant alkali‐metal base catalysis in combination with Lewis basic polyamines enables the electrocyclization of isoprene‐derived trienes to cycloheptadienes under neat conditions. Mechanistic insight supported by DFT guides a scalable route to seven‐membered carbocycles which, after reduction, give saturated cycloalkanes relevant as ...
Mikaël Le Roch, Krzysztof Piech, Aurélien Crochet, Andreu Tortajada   +3 more
wiley   +1 more source

Enhancing temperature uniformity and recirculation in MILD combustion furnace: A study on angle of Burner's bluff body

Case Studies in Thermal Engineering
This study compares the burner geometry modifications, specifically adjusting fuel and air inlet angles (α), on MILD combustion furnace performance. The objective is to improve temperature uniformity, enhance internal recirculation, and reduce pollutant ...
Mahdi Zourazmai, Mohammad Zabetian Targhi, Ali Ashouri   +2 more
doaj   +1 more source

Hydroprocessing of synthetic kerosene over a non‐sulphided Ni/Al2O3 catalyst: Impact of alcohols and ketones on alkene conversion

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Synthetic jet fuel containing non‐petroleum‐derived kerosene can be produced from synthetic kerosene obtained through processes that include a hydroprocessing step. The potential use of non‐sulphided (reduced) nickel supported on alumina (Ni/Al2O3) was evaluated as an alternative to sulphided catalysts to saturate alkenes in sulphur‐free ...
Garima Chauhan, Felix Link, Cibele Melo Halmenschlager, Arno de Klerk   +3 more
wiley   +1 more source

Flow field and emission characterization of a novel enclosed jet-in-hot-coflow canonical burner

Applications in Energy and Combustion Science
The jet-in-hot-coflow is a canonical combustion setup, which has been used in several studies to study Flameless/MILD combustion and auto-ignition of fuels.
Thimo van den Berg, Rishikesh Sampat, Arvind Gangoli Rao   +2 more
doaj   +1 more source

MILD combustion of methane and its combustion properties with ammonia and acetaldehyde

, 2023
Applying different techniques can reduce emissions and improve the efficiencies of combustion systems with methane (CH4) as fuel. This thesis presents experimental and numerical studies of CH4 combustion at different operating conditions.In the first research, spatial distributions of temperature, major species, and Hydroxyl (OH) mole fractions of ...
openaire   +1 more source

Beyond hydrogen: Process design of a biogas steam reformer for Fischer–Tropsch synthesis

The Canadian Journal of Chemical Engineering, EarlyView.
The effect of pressure and steam to carbon ratio on carbon conversion. Abstract We present an analysis of a pilot‐scale multi‐tubular biogas steam reforming reactor, part of a sustainable aviation fuel (SAF) development project in Brazil. The novelty of this work is the application of a new, validated power law kinetic model, specifically developed for
Rafael Belo Duarte, Rafael Dei Tós Barreto, João Lourenço Castagnari Willimann Pimenta, Luiz Mario de Matos Jorge   +3 more
wiley   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source