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):
-
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23K - FEEDING FUEL TO COMBUSTION APPARATUS
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 = {2016},
month = {8}
}
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