Conceptual design and simulation study of a co-gasification technology
As a promising clean coal technology, co-gasification has been extensively investigated. In this paper, a new co-gasification technology and a conceptually designed gasifier for such technology are proposed. The distinct advantages of this technology are its fuel flexibility and the availability to...
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Published in | Energy conversion and management Vol. 47; no. 11; pp. 1416 - 1428 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Elsevier Ltd
01.07.2006
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | As a promising clean coal technology, co-gasification has been extensively investigated. In this paper, a new co-gasification technology and a conceptually designed gasifier for such technology are proposed. The distinct advantages of this technology are its fuel flexibility and the availability to establish the gasifier by reconstructing a blast furnace or similar shaft furnace. Based on the idea of the new co-gasification technology, process modeling is conducted using the ASPEN Plus process simulator. By comparison with the laboratory scale experimental measurements on the co-gasification process, it is shown that the developed model reasonably describes the thermodynamic features of the co-gasification process and, thus, provides a useful tool for the analysis of this process. The obtained results also demonstrate that the co-gasification process provides an ideal thermodynamic condition for the co-gasification reactions and can operate at a quasi-equilibrium condition without employing catalysts at 1273
K. Lastly, the effects of changes of oxygen, steam and natural gas in the feedstock on the co-gasification process are studied by sensitivity analysis using the developed model. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0196-8904 1879-2227 |
DOI: | 10.1016/j.enconman.2005.08.024 |