Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AN APPARATUS, COMPONENTS AND OPERATING METHODS FOR CIRCULATING FLUIDIZED BED TRANSPORT GASIFIERS AND REACTORS
Document Type and Number:
WIPO Patent Application WO/2011/084734
Kind Code:
A3
Abstract:
The improvements proposed in this invention provide a reliable apparatus and method to gasify low rank coals in a class of pressurized circulating fluidized bed reactors termed "transport gasifier." The embodiments overcome a number of operability and reliability problems with existing gasifiers. The systems and methods address issues related to distribution of gasification agent without the use of internals, management of heat release to avoid any agglomeration and clinker formation, specific design of bends to withstand the highly erosive environment due to high solid particles circulation rates, design of a standpipe cyclone to withstand high temperature gasification environment, compact design of seal-leg that can handle high mass solids flux, design of nozzles that eliminate plugging, uniform aeration of large diameter Standpipe, oxidant injection at the cyclone exits to effectively modulate gasifier exit temperature and reduction in overall height of the gasifier with a modified non- mechanical valve.

Inventors:
LIU GUOHAI (US)
VIMALCHAND PANNALAL (US)
PENG WAN WANG (US)
Application Number:
US2010/061259
Publication Date:
December 15, 2011
Filing Date:
December 20, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SOUTHERN CO SERVICES INC (US)
LIU GUOHAI (US)
VIMALCHAND PANNALAL (US)
PENG WAN WANG (US)
International Classes:
C10J3/56; C10L3/00
Domestic Patent References:
WO2008107928A12008-09-12
Foreign References:
KR100460217B12004-12-08
EP0634470A11995-01-18
US20080216655A12008-09-11
JP2009227704A2009-10-08
Other References:
See also references of EP 2516600A4
Attorney, Agent or Firm:
REDDY, Arvind, R. (Kayden Horstemeyer & Risley, LLP.,600 Galleria Parkway,Suite 150, Atlanta GA, US)
Download PDF: