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loser(金币+20, 翻译EPI+1): 2010-10-24 17:46:47
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The NH3-TPD curves of A,B and C are showed in Figure 4.In Figure 4, A,B and C all have two peaks .The low temperature peak corresponds to desorption in the center of weak acid ,and the high temperature peak corresponds to desorption in the center of strong acid .The area of low temperature peak is larger than high temperature peak .It indicates that all the catalysts of A,B and C are weak acid , and A is weaker than B and C .Using A for oil hydrogenation reaction will be beneficial to isomerization reaction and can avoid excessive cracking reactions. |
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