Acid gas solvent filtration system

C - Chemistry – Metallurgy – 01 – B

Patent

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Details

C01B 3/52 (2006.01) B01D 53/52 (2006.01) B01D 53/62 (2006.01) B01D 53/73 (2006.01) C01B 3/50 (2006.01)

Patent

CA 2292945

The invention is a process for separating acid gases from synthesis gas and treating the resulting solids. A mixture comprising synthesis gas and acid gas is contacted with a fluid that reacts with said acid gas to form a particulate solid dispersed in a fluid. The slurry comprising fluid and particulate solid is filtered to separate said particulate solid from said fluid by means of a regenerable filter. The particulate solids are removed from the regenerable filter by back-washing with a back-washing fluid to form a pumpable slurry comprising a mixture of particulate solids and back-washing fluid. The slurry is gasified to form synthesis gas and vitrified solids.

L'invention concerne un procédé permettant de séparer des gaz acides de gaz de synthèse, et de traiter les solides résultant de cette opération. Un mélange renfermant du gaz de synthèse et du gaz acide est mis en contact avec un fluide réagissant avec ledit gaz acide pour former un solide particulaire dispersé dans un fluide. La boue renfermant du fluide et des solides particulaires est filtrée afin de séparer lesdits solides particulaires dudit fluide au moyen d'un filtre régénérable. Les solides particulaires sont éliminés du filtre régénérable par lavage à contre-courant effectué à l'aide d'un fluide de lavage à contre-courant, pour former une boue pouvant être pompée, laquelle comporte un mélange de solides particulaires et de fluide de lavage à contre-courant. La boue est gazéifiée pour former un gaz de synthèse et des solides vitrifiés.

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