C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 3/06 (2006.01) C01B 17/74 (2006.01) C01B 17/88 (2006.01)
Patent
CA 2673756
The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97 - 100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided into two separate sub-streams, the first sub-stream is routed for water decomposition in a partial thermochemical cycle of the hydrogen and sulphuric acid production and the second sub-stream is fed to the oxidation of the sulphur dioxide to sulphur trioxide.
L'invention concerne un procédé de production simultanée d'hydrogène gazeux et d'acide sulfurique fort (de 97 à 100 % en poids) à partir d'un gaz de dioxyde de soufre et d'eau. Un flux gazeux de dioxyde de soufre est divisé en deux sous-flux distincts. Le premier sous-flux est acheminé pour une décomposition d'eau dans un cycle thermochimique partiel de production d'hydrogène et d'acide sulfurique et le deuxième sous-flux est acheminé pour l'oxydation du dioxyde de soufre en trioxyde de soufre.
Gasik Michael
Peltola Helja
Rauser Wolf-Christoph
Taskinen Pekka
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Outotec Oyj
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