Discharge system to remove solids from a vessel

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 3/02 (2006.01) B01J 8/24 (2006.01) C08F 2/01 (2006.01)

Patent

CA 2662634

A discharge system for removing a solid/gas mixture from a fluidized bed pressure vessel is provided. The system includes a fluidized bed pressure vessel, settling vessels, discharge lines, primary discharge valves, vent lines, primary vent valves, crosstie lines, crosstie valves, and primary exit valves wherein the system is absent a transfer tank, and absent a filter element. The method provides for transferring a solid/gas mixture via a discharge line from the pressure vessel to a settling vessel, wherein gas is separated from the mixture, and the gas is transferred to at least one other settling vessel via a crosstie line. After the solids are transferred out of the settling vessel, the empty vessel then receives gas from other settling vessels in the system.

L'invention concerne un système d'évacuation destiné à retirer un mélange solides / gaz d'un récipient sous pression à lit fluidisé. Le système comprend un récipient sous pression à lit fluidisé, des récipients de décantation, des canalisations d'évacuation, des vannes primaires d'évacuation, des canalisations de mise à l'atmosphère, des vannes primaires de mise à l'atmosphère, des canalisations d'interconnexion, des vannes d'interconnexion et des vannes primaires de sortie, le système étant dépourvu de cuve de transfert et d'élément filtrant. Le procédé permet le transfert d'un mélange solides / gaz via une canalisation d'évacuation du récipient sous pression à un récipient de décantation, le gaz étant séparé du mélange et transféré à au moins un autre récipient de décantation via une canalisation d'interconnexion. Après que les solides ont été transférés hors du récipient de décantation, le récipient vide reçoit alors du gaz provenant d'autres récipients de décantation du système.

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