留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts

Sameh M. K. Aboul-Fotouh

downloadPDF
文章导航 > 燃料化学学报（中英文）  > 2014 >  42(03): 350-356
Sameh M. K. Aboul-Fotouh. Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts[J]. 燃料化学学报（中英文）, 2014, 42(03): 350-356.
引用本文: Sameh M. K. Aboul-Fotouh. Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts[J]. 燃料化学学报（中英文）, 2014, 42(03): 350-356.
shu
Sameh M. K. Aboul-Fotouh. Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 350-356.
Citation: Sameh M. K. Aboul-Fotouh. Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 350-356.
shu

Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts

  • Ain Shams University, Faculty of Education, Chemistry Department, Roxy, Cairo 11566, Egypt

详细信息
    通讯作者:

    Sameh M. K. Aboul-Fotouh，E-mail：samehaboulfotouh@yahoo.com

  • 中图分类号: O643

Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts

  • Ain Shams University, Faculty of Education, Chemistry Department, Roxy, Cairo 11566, Egypt

More Information
    Corresponding author: Sameh M. K. Aboul-Fotouh，E-mail：samehaboulfotouh@yahoo.com

    摘要
  • 摘要: The catalytic conversion of methanol to dimethylether (DME) was studied over CuO/Al2O3, ZnO/Al2O3 and ZnO-CuO/Al2O3 nanocatalysts prepared in presence or absence of ultrasonic irradiation. The catalysts were characterized by X-ray diffraction (XRD), surface characterization method (BET), scanning electron microscope (SEM), H2-temperature programmed reduction (H2-TPR) and temperature programmed desorption of ammonia (NH3-TPD). The experimental results show that during catalytic dehydration of methanol to dimethylether, the activities of the CuO/Al2O3, ZnO/Al2O3 and ZnO-CuO/Al2O3 catalysts prepared using ultrasonic treatment are much higher than those prepared in absence of ultrasonication. SEM shows that the use of ultrasonication results in much smaller nanoparticles. BET and XRD show that the ultrasonication increases the surface area and pore volume of the catalysts. H2-TPR profiles indicated that reducibility of the sonicated nanocatalysts is carried out at lower temperatures. NH3-TPD shows that ultrasound irradiation has enhanced the acidity of the nanocatalyst and hence enhanced catalytic performance for DME formation.
    Abstract: The catalytic conversion of methanol to dimethylether (DME) was studied over CuO/Al2O3, ZnO/Al2O3 and ZnO-CuO/Al2O3 nanocatalysts prepared in presence or absence of ultrasonic irradiation. The catalysts were characterized by X-ray diffraction (XRD), surface characterization method (BET), scanning electron microscope (SEM), H2-temperature programmed reduction (H2-TPR) and temperature programmed desorption of ammonia (NH3-TPD). The experimental results show that during catalytic dehydration of methanol to dimethylether, the activities of the CuO/Al2O3, ZnO/Al2O3 and ZnO-CuO/Al2O3 catalysts prepared using ultrasonic treatment are much higher than those prepared in absence of ultrasonication. SEM shows that the use of ultrasonication results in much smaller nanoparticles. BET and XRD show that the ultrasonication increases the surface area and pore volume of the catalysts. H2-TPR profiles indicated that reducibility of the sonicated nanocatalysts is carried out at lower temperatures. NH3-TPD shows that ultrasound irradiation has enhanced the acidity of the nanocatalyst and hence enhanced catalytic performance for DME formation.
    • HTML全文
    • 参考文献(27)
  • FLEISCH T H, BASU A, GRADASSI M J, MASIN J G. Dimethyl ether: A fuel for the 21st century[J]. Stud Surf Sci Catal, 1997, 107: 117-125.
    SEMELSBERGER T A, BORUP R L, GREENE H L. Dimethyl ether (DME) as an alternative fuel[J]. J Power Sources, 2006, 156(2): 497-511.
    VISHWANATHAN V, JUN K W, KIM J W, ROH H S. Vapour phase dehydration of crude methanol to dimethyl ether over Na-modified H-ZSM-5 catalysts[J]. Appl Catal A: Gen, 2004, 276(1/2): 251-256.
    CAI G Y, LIU Z M, SHI R M, HE C Q, YANG L X, SUN C L, CHANG Y J. Light alkenes from syngas via dimethyl ether[J]. Appl Catal A: Gen, 1995, 125(1): 29-38.
    XU M T, GOODMAN D W, BHATTACHARYYA A. Catalytic dehydration of methanol to dimethyl ether (DME) over Pd/Cab-O-Sil catalysts[J]. Appl Catal A: Gen, 1997, 149: 303-309.
    KIM S D, BAEK S C, LEE Y J, JUN K W, KIM M J, YOO I S. Effect of γ-alumina content on catalytic performance of modified ZSM-5 for dehydration of crude methanol to dimethyl ether[J]. Appl Catal A: Gen, 2006, 309(1): 139-143.
    VISHWANATHAN V, ROH H S, KIM J W, JUN K W. Surface properties and catalytic activity of TiO2-ZrO2 mixed oxides in dehydration of methanol to dimethyl ether[J]. Catal Lett, 2004, 96(1/2): 23-28.
    FEI J H, HOU Z Y, ZHU B, LOU H, ZHENG X M. Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu-Mn-Zn catalysts[J]. Appl Catal A: Gen, 2006, 304: 49-54.
    YARIPOUR F, BAGHAEI F, SCHMIDT I, PERREGAARD J. Catalytic dehydration of methanol to dimethyl ether (DME) over solid-acid catalysts[J]. Catal Commun, 2005, 147(6): 147-152.
    KIM S M, LEE Y J, BAE J W, POTDAR H S, JUN K W. Synthesis and characterization of a highly active alumina catalyst for methanol dehydration to dimethyl ether[J]. Appl Catal A: Gen, 2008, 348(1): 113-120.
    ZHANG Y L, SUN Q, DENG J F, WU D. A high activity Cu/ZnO/Al2O3 catalyst for methanol synthesis: Preparation and catalytic properties[J]. Appl Catal A: Gen, 1997, 158(1/2): 105-120.
    [JP2]REUBROYCHAROEN P, VITIDSANT T, YONEYAMA Y, TSUBAKI N. Development of a new low-temperature methanol synthesis process[J]. Catal Today, 2004, 89(4): 447-454.
    MAO D S, YANG W M, XIA J C, ZHANG B, SONG Q Y, CHEN Q L. Highly effective hybrid catalyst for the direct synthesis of dimethyl ether from syngas with magnesium oxide-modified HZSM-5 as a dehydration component[J]. J Catal, 2005, 230(1): 140-149.
    BALTES C, VUKOJEVIC S, SCHÜTH F. Correlations between synthesis, precursor, and catalyst structure and activity of a large set of CuO/ZnO/Al2O3 catalysts for methanol synthesis[J]. J Catal, 2008, 258(2): 334-344.
    BEHRENS M. Meso-and nano-structuring of industrial Cu/ZnO/Al2O3 catalysts[J]. J Catal, 2009, 267(1): 24-29.
    YANG G H, TSUBAKI N, SHAMOTO J, YONEYAMA Y, ZHANG Y. Confinement effect and synergistic function of H-ZSM-5/Cu-ZnO-Al2O3 capsule catalyst for one-step controlled synthesis[J]. J Am Chem Soc, 2010, 132(23): 8129-8136.
    [JP2]ABOUL-FOTOUH S M K. Effect of ultrasonic irradiation and/or halogenation on the catalytic performance of γ-Al2O3 for methanol dehydration to dimethyl ether[J]. J Fuel Chem Technol, 2013, 41(9): 1077-1084.
    ABOUL-GHEIT A K. Acid site strength distibution in mordenites by differential scanning calorimetry[J]. J Catal, 1988, 113(2): 490-496.
    ABOUL-GHEIT A K. Effect of decationation and dealumination of zeolite Y on its acidity as assessed by ammonia desorption measured by differential scanning calorimetry (DSC)[J]. Thermochim Acta, 1991, 191(2): 233-240.
    FREEL J. Chemisorption on supported platinum: Ⅰ. Evaluation of a pulse method[J]. J Catal, 1972, 25(1):139-148.
    REZAEI M, ALAVI S M, SAHEBDELFAR S, YAN Z F. Tetragonal nanocrystalline zirconia powder with high surface area and mesoporous structure[J]. Poweder Technol, 2006, 168(2): 59-63.
    KHOSHBIN R, HAGHIGHI M. Direct syngas to DME as a clean fuel: The beneficial use of ultrasound for the preparation of CuO-ZnO-Al2O3/HZSM-5 nanocatalyst[J]. Chem Eng Res Des, 2013, 91(6): 1111-1122.
    XIA S, NIE R, LU X, WANG L, CHEN P, HOU Z. Hydrogenolysis of glycerol over Cu0.4/Zn5.6-xMg<em>xAl2O8.6 catalysts: The role of basicity and hydrogenation spillover[J]. J Catal, 2012, 296: 1-11.
    NIE R, LEI H, PAN S, WANG L, FEI J, HOU Z. Core-shell structured CuO-ZnO@H-ZSM-5 catalysts for CO hydrogenation to dimethyl ether[J]. Fuel, 2012, 96: 419-425.
    FEI J, YANG M, HOU Z, ZHENG X. Effect of the addition of manganese and zinc on the properties of copper-based catalyst for the synthesis of syngas to dimethyl ether[J]. Energy Fuels, 2004, 18(5): 1584-1587.
    YANG M, MEN Y, LI S, CHEN G. Hydrogen production by steam reforming of dimethyl ether over ZnO-Al2O3 bi-functional catalyst[J]. Int J Hydrog Energy, 2012, 37(10): 8360-8369.
    NASIKIN M, WAHID A. Effect of ultrasonic during preparation on Cu-based catalyst performance for hydrogenation of CO, to methanol[J]. AJChE, 2005, 5(2): 111-115.
    • 相关文章
    • 施引文献
  • 资源附件(0)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1003
  • HTML全文浏览量:  28
  • PDF下载量:  1246
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-12-18
  • 修回日期:  2014-01-30
  • 刊出日期:  2014-03-31

目录

    /

    返回文章
    返回
    友情链接： 新型炭材料 中国科学院 中国知网 万方论文查重系统

    主办单位：中国科学院山西煤炭化学研究所 中国化学会主编：房倚天

    电子邮件：rlhx@sxicc.ac.cn

    版权所有 © 《燃料化学学报（中英文）》编辑部 本系统由 北京仁和汇智信息技术有限公司 开发    百度统计

    x 关闭 永久关闭

    2023年《燃料化学学报（中英文）》评优结果公布！