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Investigation for 'super-sorbent' commercial processing

出版	U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1988
URL	http://books.google.com.hk/books?id=XQzerQEACAAJ&hl=&source=gbs_api

註釋Two ways were investigated to obtain improved calcium-based sorbents for EPA's LIMB technology on SO2 control in coal-fired utility boilers. One approach is to precalcine limestone to provide a reactive CaO material suitable for direct furnace injection. The second approach, deemed far more promising, is to modify Ca(OH)2 to achieve a higher level of reactivity. Two ways of modifying Ca(OH)2 materials are sufficiently promising technically to have potential commercial application: (1) use methanol or ethanol in the hydration medium when Ca(OH)2 is produced from CaO, to increase the specific surface area; and (2) use the additive lignosulfonate in Ca(OH)2 to produce a finer particle size during sorbent injection. Of these, the latter is judged to be the more economically feasible.