| 摘要 |
<p>PURPOSE:To enhance desulfurization efficiency without generating the corrosion of an absorbent supply pipe caused by HCl-gas, by supplying a Ca-containing SOx-absorbent with which HCl-gas is absorbed in a predetermined temp. range into a furnace. CONSTITUTION:HCl-gas 14 is supplied into a supply pipe for sending the SOx- absorbent such as CaCO3 in an absorbent supply feeder 12 to absorb the HCl- gas with CaCO3 and this HCl-gas absorbed CaCO3 is supplied into the furnace while a temp. range is held to 150-500 deg.C by regulating a heater 1. A mixture consisting of fine coal and primary air for transporting fuel is supplied into the furnace from a burner 7 to perform combustion and the temp. in the furnace is regulated at 900-1,300 deg.C.</p> |
