Fischer-Tropsch synthesis on iron catalysts supported on MCM-41 and MCM-41 modified with Cs.

被引：0
|
作者：
Alvarez, AM [1 ]
Bengoa, JF [1 ]
Cagnoli, MV [1 ]
Gallegos, NG [1 ]
Yeramián, AA [1 ]
Marchetti, SG [1 ]
机构：
[1] Natl Univ La Plata, CONICET, CIC, CINDECA,Fac Cs Exactas,Fac Ingn, RA-1900 La Plata, Argentina
来源：
IMPACT OF ZEOLITES AND OTHER POROUS MATERIALS ON THE NEW TECHNOLOGIES AT THE BEGINNING OF THE NEW MILLENNIUM, PTS A AND B | 2002年 / 142卷
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中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
MCM-41 and MCM-41 modified with cesium were synthesised and utilised as supports of iron species, to be used as catalysts in the Fischer-Tropsch reaction. X-Ray Diffraction (XRD), Specific Surface Area (BET), Mossbauer Spectroscopy (MS) in controlled atmosphere, between room temperature (RT) and 15 K, CO chemisorption and Volumetric. Oxidation (VO) were used to characterise the solids. The cesium presence produces lower iron reducibility and a unique fraction of very small metallic iron crystals. These structural properties lead to a high turnover frequency and an increase of the selectivity towards light olefins.
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页码：1339 / 1346
页数：8
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