Rotary bed reactor for chemical-looping combustion with carbon capture

Chemical-looping combustion (CLC) is a novel and promising technology for power generation with inherent CO2 capture. Currently almost all the research has been focused on developing CLC based inter-connected fluidized bed reactors. A new rotating reactor concept for gas fueled CLC is proposed. In the reactor, a solid wheel rotates between the fuel and the air streams at the reactor inlet and exit. Two purging sectors are used to avoid the mixing between the fuel stream and the air stream. The rotating wheel consists of a large number of channels with copper oxide coated on the inner surface of the channels. The support material is boron nitride which has high specific heat and thermal conductivity. Gas flows through the reactor at elevated pressure and it is heated from 823K to 1245K by fuel combustion. The rotary reactor design for a thermal capacity of 1MW has been performed using a simplified model that was developed to predict the performances of the reactor. Preliminary analysis shows that both the fuel conversion efficiency and the carbon separation efficiency are close to unity. The wheel temperature fluctuation is small. There is great potential for further improvement of the construction and operating conditions, which will be followed up in the future.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Mechanical Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2012

Author dc:creator

• Zhao, Zhenlong

Advisor dc:contributor.advisor

• Ahmed F. Ghoniem.

• Mechanical Engineering.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/74957

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/74957