skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Oxycombustion in transport oxy-combustor

Abstract

A pressurized transport oxy-combustor with different configurations is disclosed. Substantially pure oxygen is fed to the transport oxy-combustor under pressure to combust fossil fuels, generating steam for power generation. The end product is the flue gas containing substantially pure CO2 after moisture condensation. The low excess oxygen necessary to achieve complete combustion in the combustor is scavenged by adding another fuel so that substantially all oxygen fed to the combustor is completely consumed. The capability to operate the transport oxy-combustor as a circulating fluidized bed combustor at very high solids circulation rates makes it unnecessary to use recycled CO2 or flue gas as a means to moderate and control the combustion temperature. The temperature in the combustor is effectively controlled by relatively cooler circulating solids that enter the combustion zone. A small amount of CO2 is recycled for aeration and to convey solids fuel to the combustor.

Inventors:
; ;
Issue Date:
Research Org.:
Southern Company, Birmingham, AL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532089
Patent Number(s):
8689709
Application Number:
13/405,312
Assignee:
Southern Company (Birmingham, AL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F22 - STEAM GENERATION F22B - METHODS OF STEAM GENERATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
NT0000749
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012-02-26
Country of Publication:
United States
Language:
English

Citation Formats

Vimalchand, Pannalal, Liu, Guohai, and Peng, WanWang. Oxycombustion in transport oxy-combustor. United States: N. p., 2014. Web.
Vimalchand, Pannalal, Liu, Guohai, & Peng, WanWang. Oxycombustion in transport oxy-combustor. United States.
Vimalchand, Pannalal, Liu, Guohai, and Peng, WanWang. Tue . "Oxycombustion in transport oxy-combustor". United States. https://www.osti.gov/servlets/purl/1532089.
@article{osti_1532089,
title = {Oxycombustion in transport oxy-combustor},
author = {Vimalchand, Pannalal and Liu, Guohai and Peng, WanWang},
abstractNote = {A pressurized transport oxy-combustor with different configurations is disclosed. Substantially pure oxygen is fed to the transport oxy-combustor under pressure to combust fossil fuels, generating steam for power generation. The end product is the flue gas containing substantially pure CO2 after moisture condensation. The low excess oxygen necessary to achieve complete combustion in the combustor is scavenged by adding another fuel so that substantially all oxygen fed to the combustor is completely consumed. The capability to operate the transport oxy-combustor as a circulating fluidized bed combustor at very high solids circulation rates makes it unnecessary to use recycled CO2 or flue gas as a means to moderate and control the combustion temperature. The temperature in the combustor is effectively controlled by relatively cooler circulating solids that enter the combustion zone. A small amount of CO2 is recycled for aeration and to convey solids fuel to the combustor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {4}
}

Patent:

Save / Share: