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METHOD FOR THE PRODUCTION OF AN ADSORPTION AGENT FOR THE SIMULTANEOUS REMOVAL OF SULFUR OXIDES AND NITROGEN OXIDES FROM EXHAUST GASES
METHOD FOR THE PRODUCTION OF AN ADSORPTION AGENT FOR THE SIMULTANEOUS REMOVAL OF SULFUR OXIDES AND NITROGEN OXIDES FROM EXHAUST GASES
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机译:用于从排气中同时去除硫氧化物和氮氧化物的吸附剂的生产方法
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摘要
Moulded coke for the removal of oxides of sulphur and nitrogen from waste gases is prepd. by (i) gripping hard coat with 10-45% volatiles to a grain size of 90% (max.) under 40 micron; (ii) oxidising the prod. in a heated, pref. 4-6 stage, fluidised bed; (iii) mixing the prod. with water and bitumen, tar or pitch and pressed into forms of 4-9 mm dia.; and (iv) heating the moulded coke to 650-950 deg.C. Conditions in (i) and (ii) are chosen according to the volatiles content of the coal. Used esp. in moving beds of coke for the treatment of furnace flue gas. Coke of standardised properties, including high absorption capacity, is produced from a wide range of coals.
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