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COKING BEHAVIORS OF THREE KINDS OF METALSAND THEIR OXIDE FILMS DURING THERMAL CRACKING REACTION OF HYDROCARBONS |
Chuseng Li;Li Yu;Yuansheng Yang |
中科院金属所 |
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Abstract The present paper, for three kinds of typical metals, Ni, Cu, Cr, and their oxide films NiO, CuO, Cr2O3, firstly analyzes the coking characteris tics in thermal cracking reaction of hydrocarbons and the possibilities of reduc tion , then they were tested separately with a quick coking device at 800℃, com bing with the analysis of morphology, elemental composition and valence on the s urface by scan electron microscope (SEM), electron dispersion X-ray analysis (ED AX) and X-ray photoelectron spectroscope (XPS), it was uncovered that the three kinds of metals and their oxide films have the different coking behaviors and co king mechanisms.
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Received: 06 March 2000
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ZTFLH: |
O621.25+4.2
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O643.38
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Corresponding Authors:
Chuseng Li
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