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Study on iron-manganese catalysts for Fischer-Tropsch synthesis

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燃料化学学报 2012年第5期40卷 550-557页

作者： mostafa feyzi FATANEH JAFARI Faculty of Chemistry Razi UniversityKermanshah ***Iran

铁锰催化剂被一起沉淀方法准备。催化剂的描述被使用 X 光衍射(XRD ) 执行，扫描电子显微镜学(SEM ) ，温度程序减小(TPR ) ， N2 吸附解吸附作用大小。从 Fischer-Tropsch 合成的催化表演测试的结果证明铁锰催化剂对催化剂作文和材料... 详细信息

铁锰催化剂被一起沉淀方法准备。催化剂的描述被使用 X 光衍射(XRD ) 执行，扫描电子显微镜学(SEM ) ，温度程序减小(TPR ) ， N2 吸附解吸附作用大小。从 Fischer-Tropsch 合成的催化表演测试的结果证明铁锰催化剂对催化剂作文和材料来源敏感过度。当 CH4 和 CO2 由使用从铁(II ) 准备的铁锰催化剂减少了时， C24 轻石蜡增加了，这被发现当 CH4 和 CO2 由使用从铁(II ) 准备的铁锰催化剂减少了时硫酸盐(催化剂) 。催化剂的活动和选择处于不同运作的条件被学习。结果证明为 C24 轻石蜡生产的最好的运作的条件在 260 点是 H2/CO=1/1 (GHSV=2400 h1 )

关键词： iron-manganese catalyst catalytic performance operational conditions Fischer-Tropsch synthesis

Synthesis,characterization and catalytic performance of nanosized iron-cobalt catalysts for light olefins production

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Journal of Natural Gas Chemistry 2011年第6期20卷 677-686页

作者： mostafa feyzi Asadollah Hassankhani Faculty of Chemistry Razi UniversityP.O.Box:+98-67149KermanshahIran Department of Materials Science International Center for ScienceHigh Technology & Environmental SciencesP.O.Box:+98-76315-117KermanIran

Nanosized Fe-Co catalysts were prepared by co-precipitation method and studied for the conversion of synthesis gas to light *** particular,the effects of a range of preparation variables such as Co/Fe molar ratios of the precipitation solution,pH value of precipitate,temperature of precipitation,promoters and loading of optimum promoter on the structure and catalytic performance are *** optimal nano catalyst for light olefins （C2-C4） production was obtained over the catalyst with Co/Fe molar ratio of 3/1 which promoted with 2 wt% *** results show that the best operational conditions were GHSV=2200 h^-1 （H2/CO=2/1） at 260℃ under atmospheric *** of catalysts were carried out using X-ray diffraction （XRD）,thermal gravimetric analysis （TGA）,differential scanning calorimetry （DSC）,scanning electron microscopy （SEM）,transmission electron microscopy （TEM） and N2 physisorption measurements such as Brunauer-Emmett-Teller （BET） and Barrett-Joyner-Halenda （BJH） methods.

关键词： light olefins catalytic performance operational condition characterization

TiO_2 supported cobalt-manganese nano catalysts for light olefins production from syngas

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Journal of Energy Chemistry 2013年第4期22卷 645-652页

作者： mostafa feyzi Asadollah Hassankhani Faculty of Chemistry Razi University Department of Materials Science International Center for ScienceHigh Technology & Environmental Sciences

Cobalt-manganese nano catalysts were prepared by sol-gel method. This research investigated the effects of different cobalt-manganese （Co/Mn = 1/1） loading, pH and calcination conditions on the catalytic performance of Co-Mn/TiO2 catalysts for Fischer-Tropsch synthesis （FTS） in a fixed bed reactor. It was found that the catalyst containing 30wt%（Co-Mn）/TiO2 was an optimal catalyst for the conversion of synthesis gas to light olefins especially propylene. The activity and selectivity of optimal catalyst were studied under different operational conditions. The results showed that the best operational conditions were H2/CO = 1/1 molar feed ratio at 250 ℃ and GHSV = 1300 h-1 un- der atmospheric pressure. Characterization of catalysts was carried out by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, N2 adsorption-desorlation measurements.

关键词： sol-gel Fischer-Tropsch synthesis light olefins operational condition

Performance and characterization of iron-nickel catalysts for light olefin production

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Journal of Natural Gas Chemistry 2010年第4期19卷 422-430页

作者： mostafa feyzi Ali Akbar Mirzaei Department of Chemistry Faculty of SciencesUniversity of Sistan & Baluchestan

A series of x （Fe,Ni）/Al2O3 catalysts （x = 2-12 wt%） were prepared using incipient wetness method and studied for the conversion of synthesis gas to light olefins.6 wt%（Fe,Ni）/Al2O3 catalyst was found to be the optimal catalyst for the production of C2-C4 *** effects of calcination behaviors and operational conditions on the catalytic performance of the optimal catalyst were *** best operational conditions were molar feed ratio H2/CO = 2/1,T = 260 ℃,gas hourly space velocity （GHSV） = 2600 h^-1 and the pressure of 3 ***-izations of both precursors and catalysts were carried out using X-ray diffraction （XRD）,temperature-programmed reduction （TPR）,scanning electron microscopy （SEM）,N2-adsorption-desorption measurement,thermal gravimetric analysis （TGA） and differential scanning calorimetry （DSC）.

关键词： calcination behaviors operational conditions catalytic performance characterization

Effects of preparation and operation conditions on precipitated iron nickel catalysts for Fischer-Tropsch synthesis

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Journal of Natural Gas Chemistry 2010年第3期19卷 341-353页

作者： mostafa feyzi Ali Akbar Mirzaei Hamid Reza Bozorgzadeh Department of Chemistry Faculty of SciencesUniversity of Sistan & Baluchestan Research Institute of Petroleum Industry(RIPI) Gas Division

Iron nickel oxide catalysts were prepared using co-precipitation procedure and studied for the conversion of synthesis gas to light *** particular,the effects of a range of preparation variables such as Fe/Ni molar ratios of the precipitation solution,precipitate aging times,calcination conditions,different supports and loading of optimum support on the structure of catalysts and their catalytic performance for the tested reaction were *** was found that the catalyst containing 40%Fe/60%Ni/40wt%Al 2O3 ,which was aged for 180 min and calcined at 600 ℃ for 6 h was the optimum modified *** catalytic performance of optimal catalyst has been studied in different operation conditions such as reaction temperatures,H2 /CO molar feed ratios and reaction total *** of both precursors and calcined catalysts was carried out by powder X-ray diffraction（XRD）,scanning electron microscopy（SEM）,Brunauer-Emmett-Teller（BET） surface area measurements,thermal analysis methods such as thermal gravimetric analysis（TGA） and differential scanning calorimetry（DSC）.

关键词： iron nickel light olefins Fischer-Tropsch operation conditions

The sol-gel derived Co-Mn/TiO_2 catalysts for light olefins production

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燃料化学学报 2014年第2期42卷 212-218页

作者： Mohammad Mehdi Khodaei mostafa feyzi Jahangir Shahmoradi Mohammad Joshaghani Faculty of Chemistry Razi University

在这个研究工作，二 30%(Co-Mn )/TiO2 催化剂用大音阶的第五音胶化(催化剂 A ) 和一起沉淀(催化剂 B ) 被准备方法。到在 Fischer-Tropsch 合成(英尺) 的 C24 轻石蜡的活动和选择在不同运作的条件下面在一个改正床反应堆被学习了。这... 详细信息

在这个研究工作，二 30%(Co-Mn )/TiO2 催化剂用大音阶的第五音胶化(催化剂 A ) 和一起沉淀(催化剂 B ) 被准备方法。到在 Fischer-Tropsch 合成(英尺) 的 C24 轻石蜡的活动和选择在不同运作的条件下面在一个改正床反应堆被学习了。这些运作的条件是：温度

关键词： Fischer-Tropsch synthesis light olefins characterization

Corrigendum to “TiO2 supported cobalt-manganese nano catalysts for light olefins production from syngas” [Journal of Energy Chemistry22（4）（2013） 645–652]

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Journal of Energy Chemistry 2019年第12期28卷 275-275页

作者： mostafa feyzi Asadollah Hassankhani Faculty of Chemistry Razi UniversityP.O.Box:+98-67149KermanshahIran Department of Materials Science International Center for ScienceHigh Technology&Environmental SciencesP.O.Box:+98-76315-117KermanIran