US 2010/0143050 A1Published application

Discharge system to remove solids from a vessel

AssigneeUnivation Technologie, LLC.

InventorsRandall L. Force, Robert G. Aronson, Mark W. Blood, Gerardo Corona, Dung P. Le, W. Scott Hamilton, Thomas A. Maliszewski, William K. Lutz

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Abstract

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.

Claims30

Dependent claims

A discharge system for removing solids from a fluidized bed pressure vessel, the discharge system comprising:

(a) a plurality of settling vessels arranged in parallel;
(b) a discharge line fluidly connecting a fluidized bed pressure vessel to at least one of the plurality of settling vessels;
(c) a primary discharge valve to control a discharge flow of a fluid mixture to the at least one of the plurality of settling vessels;
(d) a vent line fluidly connecting the fluidized bed pressure vessel and the at least one of the plurality of settling vessels;
(e) a primary vent valve to control a vent flow through the vent line;
(f) a crosstie line fluidly connecting at least two of the plurality of settling vessels;
(g) a crosstie valve to control a crosstie flow through the crosstie line;
and
(h) a primary exit valve to control an exit flow of the fluid mixture exiting the at least one of the plurality of settling vessels,
wherein the discharge system is absent a transfer tank, and wherein the plurality of settling vessels are absent a filter element.

7 more elements

Dependencies are inferred from the claim text.