Results 111 to 120 of about 3,489 (281)

Reducing the use of Fossil Carbon and Fuels to Defossilize the Electric Steelmaking Route: Evaluation of the Effects of Alternative C‐Bearing Materials and Hydrogen in the Electric Arc Furnace

steel research international, EarlyView.
The experiments and simulations demonstrate that, in general, alternative carbon sources can decrease fossil CO2 without adversely impacting EAF process and product. High plastics and tires ratios cause unsafe conditions and poor slag foaming. Hydrogen in EAF burners decreases CO2 but increases water vapor, which can raise the hydrogen content in ...
Ismael Matino, Orlando Toscanelli, Antonella Zaccara, Aintzane Soto Larzabal, Asier Zubero Lombardia, Jon Hermosa, Tamara Rodríguez Durán, Valentina Colla   +7 more
wiley   +1 more source

Slagging in Entrained-flow Gasifiers

, 2012
Gasification is a flexible technology which is applied in industry for electricity generation, hydrogen production, steam raising and liquid fuels production.
Duchesne, Marc A.
core   +1 more source

Decreasing the Environmental Impact of the Electric Steelmaking Route Through Advanced Modelling Techniques

steel research international, EarlyView.
Ensemble models are adopted to estimate the sterile content of scraps arriving to the scrap yard. Feed‐forward neural networks are exploited to estimate steel composition and temperature after Ladle furnace. The models are validated on data from two steelworks very satisfactory results and are inherently transferable to other steelworks, as they are ...
Valentina Colla, Antonella Zaccara, Stefano Dettori, Laura Laid, Ismael Matino, Silvia Cateni, Teresa Annunziata Branca, Lorenzo Vannini   +7 more
wiley   +1 more source

A Time-Series and Multi-Factor-Based Prediction Model for Ash Deposition and Slagging on Boiler Heating Surfaces

发电技术
ObjectivesUnder the background of flexible deep peak shaving, conventional fixed-time and fixed-quantity boiler soot-blowing methods are unable to adapt to dynamic operating conditions, often leading to over-blowing or under-blowing.
ZENG Zhenrong, ZHANG Hejing, LIN Zengwen, SUN Kai, SU Changmao, XIANG Shenlin, WANG Junming, YANG Chao, ZHOU Lei, ZHANG Zhihan, XU Kai   +10 more
doaj   +1 more source

Analisa Pembentukan Slagging Dan Fouling Pembakaran Batubara Pada Boiler B 0201b Pabrik 3 Unit Ubb Di PT. Petrokimia Gresik [PDF]

, 2017
PT. Petrokimia Gresik memiliki standar batubara yang sangat diperhatikan kualitasnya, karena pada batubara yang memiliki kualitas baik akan menghasilkan kalor yang tinggi serta ash yang rendah.
Prameswari, Windha Ayu
core  

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

steel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu, Andrey Karasev, Björn Glaser, Chuan Wang   +3 more
wiley   +1 more source

Slagging characteristics during residential combustion of biomass pellets

, 2008
Limited availability of sawdust and planer shavings and an increasing demand for biomass pellets in Europe are pushing the market toward other, more problematic raw materials with broader variation in total fuel ash content and composition of the ash ...
Gilbe, Carl, Öhman, Marcus, Boström, Dan,, Backman, Rainer,, Samuelsson, Robert, Lindström, Erica,, Burvalll, Jan   +6 more
core   +1 more source

Sequential Reduction of Chromite Pellets Using Hydrogen and Silicon Carbide for Carbon Emission Abatement During Ferrochrome Production

steel research international, EarlyView.
H2 prereduction selectively metallizes Fe in UG2 chromite pellets at 1100°C, while silicon carbide becomes active at 1300°C to convert remaining Cr2O3 to carbides and promote Cr metallization. By separating the roles of H2 and SiC, the sequential route reaches up to 65.7% Cr metallization and suppresses in‐furnace CO generation by ≈75% versus ...
D. Coertzen, M. Tangstad, J. P. Beukes, P. G. van Zyl, D. G. Bessarabov, S. P. du Preez   +5 more
wiley   +1 more source

Research progress on influencing factors and control methods of slagging in biomass combustion

Frontiers in Energy Research
Biomass combustion serves as a carbon-neutral energy solution but faces persistent challenges due to ash-related operational inefficiencies. This review systematically examines the thermochemical interactions among alkali metals (K, Na), chlorine (Cl ...
Jiyi Luan, Qi Wang, Dongwei Shao, Bo Cui, Ping Han, Qiang He   +5 more
doaj   +1 more source

Experimental and Computational Investigation of Slag–Refractory Interactions Under Conditions Relevant to Hydrogen Plasma Smelting Reduction

steel research international, EarlyView.
This study investigates how slag interacts with magnesia–carbon (MgO–C) refractories under conditions relevant to hydrogen plasma smelting reduction. High‐temperature refractory wear tests are combined with thermodynamic modeling to examine refractory dissolution into slag and slag infiltration into the refractory.
Eeli‐Matti Sassi, Eetu‐Pekka Heikkinen, Tero Vuolio, Riku Mattila, Ville‐Valtteri Visuri   +4 more
wiley   +1 more source