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Title: System and method and apparatus for maintaining a pressure balance in a solids flow loop and for controlling the flow of solids therethrough

Patent ·
OSTI ID:1462179

A system includes a standpipe for receiving a flow of solids therethrough, the standpipe having at least one inlet configured to receive a gas for decreasing a solids-to-gas ratio of the flow, a sealpot having an inlet fluidly coupled to the standpipe and an outlet fluidly coupled to a riser, the sealpot being configured to fluidize the solids received from the standpipe and to transport the solids to the riser, and a drain device fluidly coupled to an outlet in the standpipe, the outlet being located upstream from the inlet of the sealpot. The drain device is configured to remove the excess gas from the flow of solids within the standpipe to increase the solids-to-gas ratio of the flow prior to the solids entering the sealpot.

Research Organization:
General Electric Technology GmbH, Baden (Switzerland)
Sponsoring Organization:
USDOE
DOE Contract Number:
FE0009484
Assignee:
GENERAL ELECTRIC TECHNOLOGY GMBH (Baden, CH)
Patent Number(s):
10,011,441
Application Number:
15/086,914
OSTI ID:
1462179
Resource Relation:
Patent File Date: 2016 Mar 31
Country of Publication:
United States
Language:
English

References (8)

Treating carbonaceous matter with hot steam patent June 1977
Process and apparatus for the treatment of granular solid materials in a fluidized layer patent June 1990
Method and apparatus for burning solid or sludge-like fuels in a fluidized bed patent January 1992
Process and apparatus for non-mechanical flow control of catalyst around a catalyst regenerator patent December 1994
Fluidized bed combustion system and a pressure seal valve utilized therein patent November 1997
Fine solids recycle in a circulating fluidized bed patent August 2001
Reactor-integrated syphon patent January 2011
Sealpot and method for controlling a solids flow rate therethrough patent October 2015

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