发明名称 |
Process for dry desulfurization of flue gas |
摘要 |
Sulfur oxides contained in the flue gas from coal-fired boiler are adsorbed by an adsorbent prepared by dry-distilling a portion of fuel coal satisfying at least one of requirements of an ash content lower than 15% by weight and a fixed carbon content of at least 50% by weight, thereby producing semi-coke, and activating the semi-coke by steam, and then the sulfur oxides-adsorbed adsorbent is heated to desorb the adsorbed sulfur oxides at a high concentration. The desorbed sulfur oxides are passed through a bed of semi-coke before the activation to recover the sulfur oxides as elemental sulfur.
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申请公布号 |
US4421732(A) |
申请公布日期 |
1983.12.20 |
申请号 |
US19810274277 |
申请日期 |
1981.06.16 |
申请人 |
HITACHI, LTD. |
发明人 |
KOMURO, TAKEO;GOMI, KENICHI;ARASHI, NORIO;AKIMOTO, HIDETOSHI;HISHINUMA, YUKIO;IINUMA, HAJIME;KANDA, OSAMU |
分类号 |
B01D53/34;B01D53/02;B01D53/50;B01D53/81;C01B17/60;(IPC1-7):B01J8/00;C01B17/00;C01B17/02 |
主分类号 |
B01D53/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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