João Rezende

Constructing a Blast Furnace Diagram with FactSage – Part IV

In order to reduce the CO2 emissions caused by the iron & steel industry, there have been initiatives in the last decades to substitute reductants based on carbon by the use of H2 as a reducing agent. These initiatives go from the direct injection of H2 at the tuyeres of the blast furnace [1, 2] […]

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Constructing a Blast Furnace Diagram with FactSage – Part III

In the 3rd blog post of this series related to the Blast Furnace Diagram, we at first consider the effect of including the metallic phases as solution phases instead of considering them as pure compounds, like we already did for the oxides. Then, we show how the total pressure will affect the diagram, in special

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Constructing a Blast Furnace Diagram with FactSage – Part II

In the second blog post of this series related to the Blast Furnace Diagram, we explore some variations of the diagram constructed in the first blog post, while sticking to carbon as the only reducing agent in the system. This blog post was written in collaboration with Klaus Hack. The first diagram that we will

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Constructing a Blast Furnace Diagram with FactSage 8.2

The so-called blast-furnace diagram describes which phases are stable in the different regions of the blast furnace, depending on the conditions of temperature and of the atmosphere inside the furnace[1]. It is basically a phase diagram, where the volume fraction of CO is represented on the X-axis and the temperature is represented on the Y-axis,

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GTT at the International Freiberg Conference 2022

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From September 19th to 21th 2022 the International Freiberg Conference on waste gasification (https://freiberg.gasification-freiberg.com/) will take place and we are excited to be there! Waste gasification is an important topic for us at GTT, because it contributes to the rational and efficient usage of natural resources.  GTT will be represented by two talks:  Talk 1:

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GTT at MSE 2022

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From September 27th to 29th 2022 the Material Science and Engineering (MSE, https://dgm.de/mse/2022/) conference will take place in Darmstadt and we are excited to be there! In total, GTT will be represented by three talks: Talk 1: Building a common platform for thermodynamic optimizations Speaker: Florian Tang When: 09/28/2022, 9.20 AM CET Talk 2: Accuracy

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Video presentations from the GTT Users’ Meeting 2022 are online

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The GTT Users‘ Meeting 2022, which took place online, was a huge success with more than 150 participants from all over the world! The final program including the recorded video presentations can be found here: As you can see, the program contained an excellent mix of theoretical and application-oriented presentations covering topics mainly in the

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FactSage 8.2 release

We are happy to inform you that the most recent update of FactSage, version 8.2, has recently been delivered to our customers. In this version, we improved the capability of some important calculation modules and also introduced a new app for the assessment of Gibbs energy functions! Many of the standard databases have been significantly

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KilnSimu – Solution for Rotary Kiln Simulation

KilnSimu is a standalone software that can be used for thermodynamic modelling rotary drum furnaces. It is a joint production by VTT and GTT. While it relies on the calculation routines of ChemApp, it is user-friendly and specialized to one specific application. The rotary kiln is concurrently used in several industries. The rotary drum provides

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