The improvement of slagging gasifier refractories
Refractories play a vital role in slagging gasifier on-line availability and profitability for the next clean power generation system. A recent survey of gasifier users by USDOE indicated that a longer service life of refractories is the highest need among gasifier operators. Currently, Cr2O3 based refractories, the best of commercially available materials for use in slagging gasifiers, last between 3 and 24 months. Researchers at Albany Research Center (ARC) have identified structural spalling, caused by slag penetration, as one of the major failure mechanisms of Cr2O3 refractories through postmortem analysis. New Cr2O3 refractories with phosphate additives have been developed by ARC to decrease slag penetration and thus structural spalling. Laboratory physical property tests indicated that ARC developed refractories are superior to other commercial bricks. One of the ARC developed phosphate containing refractories has been installed in a slagging gasifier. Preliminary results of the performance of this refractory in the gasifier will be reported along with research to develop non-chromia refractories.
- Research Organization:
- Albany Research Center (ARC), Albany, OR; National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV
- Sponsoring Organization:
- USDOE - Office of Fossil Energy (FE)
- OSTI ID:
- 922533
- Report Number(s):
- DOE/NETL-IR-2006-021; AE-FY-04-06; AMP-006; ISBN: : 978-1-57498-265-7
- Journal Information:
- Ceramic Transactions, Journal Name: Ceramic Transactions Journal Issue: March 2006 Vol. 180
- Publisher:
- John Wiley and Sons, for the American Ceramic Society
- Country of Publication:
- United States
- Language:
- English
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