Comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by circulating fluidized bed boiler

The invention relates to a comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by a circulating fluidized bed boiler in combination with desulfuration of activated coke and acid making. The method comprises the following steps of: adding stone coa...

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Hauptverfasser: GAO HONGPEI, ZHOU LIFENG, YU DONGJIANG, HUANG XIAOHENG, WU ZHIXIONG, WEI YUAN, XIAO PING, CHEN TAIGUANG, MAO YONGZHONG, CAO KUNLONG, BIN WENJIN, HUANG XUEWEN, SUN XIANBIN, GUO QINGFENG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention relates to a comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by a circulating fluidized bed boiler in combination with desulfuration of activated coke and acid making. The method comprises the following steps of: adding stone coal into the circulating fluidized bed boiler, and adding petroleum coke or anthracite for roasting; generating power by using heat produced by combustion in the roasting process, desulphurizing sulfur-containing flue gas produced by combustion, and preparing sulfuric acid; and collecting ash produced after combustion, and performing acid leaching and vanadium extraction treatment on the collected ash by using the sulfuric acid obtained in the previous step. By the comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by the circulating fluidized bed boiler, heat in the stone coal is utilized, a noble metal, namely vanadium in the stone coal is utilized, sulfur in th