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Title: 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:
; ;
Publication Date:
Research Org.:
Southern Company Services, Inc., Birmingham, AL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1289997
Patent Number(s):
9,409,136
Application Number:
14/488,323
Assignee:
Southern Company Services, Inc. (Birmingham, AL) NETL
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. doi:. 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}
}

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