"Synthesis of Meso- and Macro-Porous Materials as Cobalt Based Catalyst" by Peng Zhou
 

Theses and Dissertations

Author

Peng Zhou

Issuing Body

Mississippi State University

Advisor

Yu, Fei

Committee Member

Srinivasan, Radhakrishnan

Committee Member

To, Filip Suminto D.

Date of Degree

8-15-2014

Document Type

Graduate Thesis - Open Access

Major

Biological Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Department of Agricultural and Biological Engineering

Abstract

Several self-supported and metal oxide supported cobalt Fisher-Tropsch (FT) catalysts were prepared applying incipient wetness impregnation method. The catalysts were characterized by TPR, adsorption-desorption, XRD, TEM and SEM. The gas products were characterized by GC. The effect of support was investigated. The selfsupported 3D ordered macro-porous (3DOM) Fe-Co and self-supported 2D ordered mesoporous catalyst showed low or no activity under typical F-T reaction conditions. The 3DOM Al2O3 supported cobalt catalyst showed much higher CO conversion and C4+ selectivity than conventional Co/Gamma-Al2O3 catalyst. However, the 3DOM Co/Al2O3 prepared by incorporated method showed no activity. The supported Co/SBA-15 performed better CO conversion than the conventional Co/SiO2. The effects of temperature and time on 3DOM Co/Al2O3 and Co/SBA-15 system were coherent with traditional catalysts. The well-defined structure of 3DOM Al2O3 and SBA-15 may favor to the selectivity of C4+ hydrocarbons product.

URI

https://hdl.handle.net/11668/20170

Comments

macroporous||mesoporous||cobalt catalyst||Fischer-Tropsch synthesis

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