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"Development of softening and melting testing conditions simulating bla" by Nathan Barrett, Subhasish Mitra et al.

Softening and Melting (S&M) experiments have evolved alongside the blast furnace as a crucial tool for burden characterisation and optimisation. Modern blast furnaces derive a base load of hydrogen from various sources. However, with hydrogen-enrichment of the blast furnace being considered to mitigate emissions, new S&M test conditions are required. In this study, a 2-D axisymmetric CFD model is used to simulate the internal conditions of a modern blast furnace operation, and a future operation with tuyere level hydrogen injection. The model results are used to guide the development of novel S&M test conditions, inclusive of H2, H2O, CO, CO2 and N2. The maximum hydrogen concentration under hydrogen enrichment was 20%, with the hydrogenous fraction of the gas primarily replacing nitrogen. A particular focus was given to the importance of including water vapour in the inlet gas, andits impact on reactions occurring in the S&M test. ....

Blast Furnace , Cfd Modelling , Raw Material Testing , Oftening And Melting , Est Ing Conditions , Urden Characterisation , Hydrogen Injection , Internal Conditions ,

Innovative Hydrogen Solutions & Hydrogen Plus Unveil Gen 2 I-Phi Hydrogen-on-Demand System

Calgary, AB Innovative Hydrogen Solutions (IHS) and Hydrogen Plus, leading innovators in the Hydrogen-on-Demand technology for fuel savings and emissions ....

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Nippon Steel to invest in Canadian coal company; steelmaking coal offtake agreement

Nippon Steel Corporation and Canada-based Teck Resources Limited, the second largest producer of high-quality steelmaking coal in the world, have executed an investment agreement with certain other affiliates of each of Nippon Steel and Teck, pursuant to which Nippon Steel has agreed to acquire indirectly up to 10% of common. ....

Teck Resources , Nippon Steel Corporation , Hydrogen Injection , Elk Valley Resources Ltd , Canada Based Teck Resources Limited , Nippon Steel , Elk Valley Resources , Teck Metals ,

BorgWarner (BWA) Announces Intent to Spin Off Fuel Systems and Aftermarket Segments

BorgWarner (BWA) Announces Intent to Spin Off Fuel Systems and Aftermarket Segments
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"Assessment of Blast Furnace Operational Constraints in the Presence of" by Nathan Barrett, Subhasish Mitra et al.

Present day, the production of hot metal (HM) via the blast furnace route remains an integral part of the global steel industry. With global pressure to curb greenhouse gas emissions, injection of hydrogen is considered a promising solution while ironmaking transitions to alternate technologies. A comprehensive heat and mass balance model calibrated to an operating blast furnace was used to assess the operational limits of hydrogen injection through the tuyeres, replacing Pulverised Coal Injection (PCI). Constrained by a minimum top gas temperature and minimum Raceway Adiabatic Flame Temperature (RAFT), the maximum injection rate was determined to be 19.5 kg-H2/t-HM when replacing 37.4 kg-PCI/t-HM (i.e. a replacement ratio of 1.9 kg-PCI/kg-H2 or 1.54 kg-C/kg-H2). At the maximum hydrogen injection rate, the specific CO2,eq emissions were seen to decrease by 8% in the top gas. In the case where the increased level of hydrogen increases stack reduction efficiency, the maximum hydrogen inj ....

Pulverised Coal Injection , Raceway Adiabatic Flame Temperature , Blast Furnace , Greenhouse Gas Emissions , Eat And Mass Balance , Hydrogen Injection , Pulverised Coal Injection , Replacement Ratio ,