Hydrogen production through coal gasification is becoming one of the most attractive options for energy production due to its remarkable advantages in pollution control and greenhouse gases-emissions monitoring. With this aim, Sotacarbo, Ansaldo Ricerche, ENEA and the University of Cagliari, are developing a research project to design, construct and test a pilot plant for hydrogen production from coal gasification (in particular from high-sulphur Sulcis coal). The project has been funded by the Italian Ministry of Education, University and Research (MIUR) and by the European Commission and the total cost has been estimated in about 12 million euros. The pilot plant, which has been recently constructed in the Sotacarbo Research Centre located in Sardinia (Italy), includes two updraft fixed-bed Wellman-Galusha gasifiers (a 700 kg/h pilot gasifier and a 35 kg/h laboratory-scale gasifier) and an overall syngas treating process for hydrogen production. In particular, the raw gas cleaning sections is composed by both hot and cold gas desulphurization processes, which can operate in parallel in order to compare their performances. This paper reports the main results of the process analysis and performance evaluation, in particular the analysis of the updraft moving bed gasifiers has been carried out under the assumption of chemical equilibrium by using two different simulation models, developed using the Aspen Plus and the ChemCAD commercial software. The results obtained with the two gasification models are very similar and compare favourably with the expected performances specified by the gasifier manufacturer.

Hydrogen production from coal gasification in updraft gasifier with syngas treating line

TOLA, VITTORIO
2007-01-01

Abstract

Hydrogen production through coal gasification is becoming one of the most attractive options for energy production due to its remarkable advantages in pollution control and greenhouse gases-emissions monitoring. With this aim, Sotacarbo, Ansaldo Ricerche, ENEA and the University of Cagliari, are developing a research project to design, construct and test a pilot plant for hydrogen production from coal gasification (in particular from high-sulphur Sulcis coal). The project has been funded by the Italian Ministry of Education, University and Research (MIUR) and by the European Commission and the total cost has been estimated in about 12 million euros. The pilot plant, which has been recently constructed in the Sotacarbo Research Centre located in Sardinia (Italy), includes two updraft fixed-bed Wellman-Galusha gasifiers (a 700 kg/h pilot gasifier and a 35 kg/h laboratory-scale gasifier) and an overall syngas treating process for hydrogen production. In particular, the raw gas cleaning sections is composed by both hot and cold gas desulphurization processes, which can operate in parallel in order to compare their performances. This paper reports the main results of the process analysis and performance evaluation, in particular the analysis of the updraft moving bed gasifiers has been carried out under the assumption of chemical equilibrium by using two different simulation models, developed using the Aspen Plus and the ChemCAD commercial software. The results obtained with the two gasification models are very similar and compare favourably with the expected performances specified by the gasifier manufacturer.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/109328
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