Hydrogen Sulphide Methane Reformation (HSMR) represents a valid alternative for the simultaneous H2S valorisation and hydrogen production at the industrial scale, without direct CO2 emissions. The major concerns about the process commercialization are the possible coke formation in the reaction zone and the lack of active and selective catalysts. The study of the thermodynamics is the essential preliminary step for the reaction phenomena understanding. In this work, a deep thermodynamic analysis is performed to explore the system behaviour as a function of temperature, pressure, and inlet feed composition, using the Aspen Plus RGibbs module. In this way, the optimal process operating conditions to avoid carbon lay down can be identified. Assessed the system's thermodynamics, a preliminary process scheme is developed and simulated in Aspen Plus V11.0®, considering hydrogen production and its distribution in pipeline with methane. The process performances are discussed in terms of products' purity and process energy consumptions.

Hydrogen sulphide to hydrogen via H2S methane reformation: Thermodynamics and process scheme assessment

Spatolisano E.;De Guido G.;Pellegrini L. A.;
2022

Abstract

Hydrogen Sulphide Methane Reformation (HSMR) represents a valid alternative for the simultaneous H2S valorisation and hydrogen production at the industrial scale, without direct CO2 emissions. The major concerns about the process commercialization are the possible coke formation in the reaction zone and the lack of active and selective catalysts. The study of the thermodynamics is the essential preliminary step for the reaction phenomena understanding. In this work, a deep thermodynamic analysis is performed to explore the system behaviour as a function of temperature, pressure, and inlet feed composition, using the Aspen Plus RGibbs module. In this way, the optimal process operating conditions to avoid carbon lay down can be identified. Assessed the system's thermodynamics, a preliminary process scheme is developed and simulated in Aspen Plus V11.0®, considering hydrogen production and its distribution in pipeline with methane. The process performances are discussed in terms of products' purity and process energy consumptions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
H2 production
H2 gas-grid distribution
H2S valorisation
Methane reformation
CO2 emissions
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/1216256
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