Control of oil-ash slagging by an additive / G.K. Lee and E.R. Mitchell, Fuels and Mining Practice Division.: M38-8/37E-PDF
"Conventional cleaning methods were found to be inadequate for removing slag deposits from high-temperature heat-transfer surfaces of oil-fired boilers. The research project described in this paper first established that minute interconnecting voids in slag deposits were sufficiently large to allow penetration by water treated with a suitable surfactant. From this was developed a practical water washing procedure that has been adopted as routine maintenance in certain marine boilers. Subsequently, fundamental combustion studies established that the mechanism of deposition for indigenous oil-ash constituents is primarily one of molecular diffusion. This finding indicates that new and radical burner and boiler design concepts are needed to overcome operational problems when untreated high-vanadium fuel oils are burned. Also described is a program of research on fuel oil additives to alleviate the superheater slagging problem. This includes the evaluation of many additive materials in a laboratory combustion rig and the development of a particular magnesia-alumina formulation that has promise as a practical and effective additive. Several large power utility boilers are now operating regularly on additive formulations developed through this research program, and preliminary reports indicate a high degree of success"--p. 103.
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| Department/Agency | Canada. Natural Resources Canada. Canada. Department of Energy, Mines and Resources. Canada. Mines Branch. |
|---|---|
| Title | Control of oil-ash slagging by an additive / G.K. Lee and E.R. Mitchell, Fuels and Mining Practice Division. |
| Series title | Reprint series ; RS 37 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Cover title. "Reprinted from Pulp and Paper Magazine of Canada, Technical Section, Vol. 68, N. C Convention 1967." Historical publication digitized from print 2017 [by Natural Resources Canada]. Includes bibliographical references. |
| Publishing information | Ottawa : Queen's Printer, 1967. |
| Author / Contributor | Lee, G. K. Mitchell, E. R. |
| Description | p. 103-106 : ill. |
| Catalogue number |
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| Departmental catalogue number | 300116 |
| Subject terms | Heating Petroleum |