Title:
PREPARATION AND REPEATED REGENERATION OF MATERIAL CONTAINING AMORPHOUS IRON OXYHYDROXIDE, DESULFURIZATION AGENTS CONTAINING THE MATERIAL AND PREPARATION AND REPEATED REGENERATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/081288
Kind Code:
A1
Abstract:
A preparation method for material containing amorphous iron oxyhydroxide is provided. Said method includes: mixing an aqueous ferrous salt solution and hydroxide solution or solid hydroxides at the temperature of below 70℃, filtering the reaction solution, washing the filter cake, preparing suspension solution of the filter cake, blowing an oxygen-containing gas into the suspension solution to oxidize the ferrous iron, and then filtering and drying. The material after using as desulfurization agents can be repeatedly regenerated through oxidation in an oxygen-containing gas. A desulfurization agent, preparation and repeated regeneration thereof are also provided. Said desulfurization agent contains said material and organic binders, and may also include a small amount of additives. The organic binders are selected from sodium carboxymethyl cellulose, sesbania powder and cellulose powder, and the additives are selected from sawdust, rice husk powder and bran.
Inventors:
LIU ZHENYI (CN)
YU YONGSHENG (CN)
LIN KE (CN)
YU YONGSHENG (CN)
LIN KE (CN)
Application Number:
PCT/CN2009/001596
Publication Date:
July 22, 2010
Filing Date:
December 30, 2009
Export Citation:
Assignee:
BEIJING SANJU ENVIRONMMENTAL P (CN)
LIU ZHENYI (CN)
YU YONGSHENG (CN)
LIN KE (CN)
LIU ZHENYI (CN)
YU YONGSHENG (CN)
LIN KE (CN)
International Classes:
B01D53/48; C01G49/02; B01D53/52; C01G49/16
Foreign References:
| CN101274781A | 2008-10-01 | |||
| CN101274781A | 2008-10-01 | |||
| CN101119934A | 2008-02-06 | |||
| JPH10259026A | 1998-09-29 |
Other References:
LIU, ZHENYI ET AL.: "Characterization of an Active Component of Iron Oxide Desulfurization Agent with High Sulfur Adsorption Capacity.", 2006 NATIONAL GAS PURIFICATION TECHNOLOGY SEMINAR PROCEEDINGS., 2006, pages 107 - 111, XP008150134
See also references of EP 2383227A4
See also references of EP 2383227A4
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (North Ring Center Building ANo. 18 Yu-Min Road,XiCheng, Beijing 9, CN)
Download PDF: