High pressure feeder and method of operating to feed granular or fine materials
Abstract
A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.
- Inventors:
- Issue Date:
- Research Org.:
- Southern Company Services, Inc., Birmingham, AL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1289997
- Patent Number(s):
- 9409136
- Application Number:
- 14/488,323
- Assignee:
- Southern Company Services, Inc. (Birmingham, AL)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
- DOE Contract Number:
- FC21-90MC25140
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Sep 17
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 01 COAL, LIGNITE, AND PEAT
Citation Formats
Vimalchand, Pannalal, Liu, Guohai, and Peng, Wan Wang. High pressure feeder and method of operating to feed granular or fine materials. United States: N. p., 2016.
Web.
Vimalchand, Pannalal, Liu, Guohai, & Peng, Wan Wang. High pressure feeder and method of operating to feed granular or fine materials. United States.
Vimalchand, Pannalal, Liu, Guohai, and Peng, Wan Wang. Tue .
"High pressure feeder and method of operating to feed granular or fine materials". United States. https://www.osti.gov/servlets/purl/1289997.
@article{osti_1289997,
title = {High pressure feeder and method of operating to feed granular or fine materials},
author = {Vimalchand, Pannalal and Liu, Guohai and Peng, Wan Wang},
abstractNote = {A coal feed system to feed pulverized low rank coals containing up to 25 wt % moisture to gasifiers operating up to 1000 psig pressure is described. The system includes gas distributor and collector gas permeable pipes imbedded in the lock vessel. Different methods of operation of the feed system are disclosed to minimize feed problems associated with bridging and packing of the pulverized coal. The method of maintaining the feed system and feeder device exit pressures using gas addition or extraction with the pressure control device is also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 09 00:00:00 EDT 2016},
month = {Tue Aug 09 00:00:00 EDT 2016}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Apparatus for introducing particulate material into a vessel
patent, May 1978
- Stock, Arthur J.; Hastings, Reeve R.
- US Patent Document 4,089,429
Dry piston coal feeder
patent, February 1979
- Hathaway, Thomas J.; Bell, Jr., Harold S.
- US Patent Document 4,140,228
Desulfurization and improvement of combustion and gasification characteristics of coals
patent, May 1983
- Biswas, Bimal K.
- US Patent Document 4,384,536
Dry solids pump system for feeding a high pressure combustor
patent, October 1996
- Krawczyk, Paul D.
- US Patent Document 5,560,550
Solid fuel combustion method and apparatus for the conversion of waste into useful energy
patent-application, December 2003
- Tucker, Ronald M.
- US Patent Application 10/161854; 20030221432
Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier
patent-application, April 2007
- Tietze, Gunter; Richter, Stefanie; Schingnitz, Manfred
- US Patent Application 11/371968; 20070074643
Method and Apparatus for Continuously Feeding and Pressurizing a Solid Material Into a High Pressure System
patent-application, December 2007
- Sprouse, Kenneth Michael; Matthews, David R.; Stewart, Albert E.
- US Patent Application 11/850257; 20070297958
Use of Pure Carbon Dioxide as an Inerting and Flow Medium in Powder Injection Systems for Use in Pulverized Coal Gasification Under Pressure
patent-application, June 2010
- Schingnitz, Manfred; Tietze, Gunter
- US Patent Application 12/598069; 20100147413
Method and Apparatus for Producing Synthesis Gas from Biomass
patent-application, November 2010
- Kukkonen, Petri; Knuuttila, Pekka; Jokela, Pekka
- US Patent Application 12/669764; 20100280137
Continuous Fuel Supply for a Coal Gasification Reactor
patent-application, May 2011
- Kuske, Eberhard; Hamel, Stefan
- US Patent Application 12/736039; 20110100274
Method and System for Supplying a Reactor for Generating Crude Synthesis Gas
patent-application, September 2011
- Hamel, Stefan; Kowoll, Johannes
- US Patent Application 12/998834; 20110233471