Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

692
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

282
Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

1

Information Journal Paper

Title

PREPARATION OF A NOVEL SUPER ACTIVE FISCHER-TROPSCH COBALT CATALYST SUPPORTED ON CARBON NANOTUBES

Pages

  37-48

Abstract

 The potential of CARBON NANOTUBEs (CNT) supported COBALT catalysts for Fischer-Tropsch (FT) reaction is shown. Using the wet impregnation method COBALT on CARBON NANOTUBEs catalysts were prepared with COBALT loading varying from 15 to 45 wt. %. The catalysts are characterized by different methods including: BET physisorption, X-ray diffraction, hydrogen chemisorption, and temperature-programmed reduction. The activity and product selectivity of the catalysts were assessed and compared with alumina supported COBALT catalysts using a continuous-stirred tank reactor (CSTR). Using CARBON NANOTUBEs as COBALT catalyst support was found to decrease the reduction temperature of Co3O4 to CoO from 440 to 347oC and that of CoO to Coo from 640 to 574oC. The strong metal-support interactions are reduced to a large extent and the REDUCIBILITY of the catalysts improved by 67.7 %. CNT aided in well dispersion of metal clusters and average COBALT clusters size of the reduced COBALTs is decreased from 5.3 to 4.9 nm. Results are presented showing that the hydrocarbon yield obtained by CNT supported COBALT catalyst is 74.6 % more than that obtained from COBALT on alumina supports. The maximum concentration of active surface Coo sites and FTS activity for CNT supported catalysts are achieved 40 wt.% COBALT loading. CNT caused a slight decrease in the FTS product distribution to lower molecular weight hydrocarbons.

Cites

References

  • No record.

    • Cite

    APA: Copy

    TAVASOLI, AHMAD, IRANI, MOHAMMAD, NAKHAEIPOUR, A., MORTAZAVI, YAD ELAH, KHODADADI, A.A., & DALAI, A.K.. (2009). PREPARATION OF A NOVEL SUPER ACTIVE FISCHER-TROPSCH COBALT CATALYST SUPPORTED ON CARBON NANOTUBES. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 28(1), 37-48. SID. https://sid.ir/paper/549325/en

    Vancouver: Copy

    TAVASOLI AHMAD, IRANI MOHAMMAD, NAKHAEIPOUR A., MORTAZAVI YAD ELAH, KHODADADI A.A., DALAI A.K.. PREPARATION OF A NOVEL SUPER ACTIVE FISCHER-TROPSCH COBALT CATALYST SUPPORTED ON CARBON NANOTUBES. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2009;28(1):37-48. Available from: https://sid.ir/paper/549325/en

    IEEE: Copy

    AHMAD TAVASOLI, MOHAMMAD IRANI, A. NAKHAEIPOUR, YAD ELAH MORTAZAVI, A.A. KHODADADI, and A.K. DALAI, “PREPARATION OF A NOVEL SUPER ACTIVE FISCHER-TROPSCH COBALT CATALYST SUPPORTED ON CARBON NANOTUBES,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 28, no. 1, pp. 37–48, 2009, [Online]. Available: https://sid.ir/paper/549325/en

    Related Journal Papers

  • No record.

    • Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops





    Move to top