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N-butane and liquefied petroleum gas steam reforming catalyst developed

Author: ZhangZuo
Tutor: XuShaoPing
School: Dalian University of Technology
Course: Chemical processes
Keywords: Butane LPG Steam reforming of Nickel catalyst Active
CLC: O643.3
Type: Master's thesis
Year: 2001
Downloads: 90
Quote: 1
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Abstract


In this paper, the development of alternative products imported catalyst for the purpose of using the coprecipitation of Si / Al line carrier prepared by impregnation method with Ni / Si-Al catalysts. The effects of catalyst composition, the catalyst preparation conditions for preparing the carrier of n-butane and liquefied petroleum gas steam reforming reaction. Preliminary investigation of La element added amount of the order of addition on the catalytic activity , anti- coking properties. By XRD, TG-DTG, TEM, X fluorescence spectra analysis methods to characterize the catalysts . Respectively, n-butane and 30% of the olefin-containing liquefied petroleum gas as a raw material , catalyst and the import of the steam reforming catalyst made ??catalytic activity was evaluated. The following conclusions: ( 1 ) self- Ni / Si-Al catalyst has good steam reforming activity. Under the same conditions , with a catalyst made ??of similar import reaction results . ( 2) with n-butane and 30% of the olefin-containing feedstock LPG , made ??suitable catalyst is a catalyst bed temperature between 750-800 ℃ and steam to carbon ratio of 2.0 in the reaction conditions remain good reactivity. ( 3 ) self-made catalysts, the introduction of rare earth oxides of lanthanum oxide , greatly improving the catalyst resistance to coking properties. ( 4 ) comes with the presence of a catalyst and catalyst imports α-Al 2 O 3 , Si 2 Al 6 O 13 , NiO crystal structure .

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CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Catalytic
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