Akiti Jr., T. T. ; Constant, K. P. ; Doraiswamy, L. K. ; Wheelock, T. D. (2002) An improved core-in-shell sorbent for desulfurizing hot coal gas Advances in Environmental Research, 6 (4). pp. 419-428. ISSN 1093-0191
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S10930...
Related URL: http://dx.doi.org/10.1016/S1093-0191(01)00070-3
Abstract
Work on an advanced calcium-based sorbent for desulfurizing hot coal gas has led to the development of a unique material in the form of spherical pellets, which have a limestone-based core encased in a strong supporting shell. Strong pellets are prepared by incorporating some calcium aluminate cement in the core and a larger amount in the shell, together with limestone. The pellets are prepared by a two-step pelletizing method, followed by steam curing and heat treatment. The pellets are capable of absorbing relatively large amounts of hydrogen sulfide at high temperature (e.g. 1150-1200 K) and can be regenerated by a cyclic oxidation and reduction process.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Sorbent; Calcium-based; Hydrogen Sulfide; Coal Gas; Desulfurization; Sulfurous Gases; Limestone; Calcium Aluminate Cement |
| ID Code: | 22799 |
| Deposited On: | 24 Nov 2010 08:25 |
| Last Modified: | 31 May 2011 04:40 |
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