INCREASING GASOLINE OCTANE RATING OF CRACKED HYDROCARBONS BY ADDITION OF SHAPE SELECTIVE PROMOTER TO THE CRACKING CATALYST
The octane number and/or the total yield of gasoline obtained by cracking a hydrocarbon chargestock in the presence of a cracking catalyst comprising an active catalyst component and a matrix, is improved when there is added to the cracking catalyst from 0.01 to 1 weight percent, based on the cracki...
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Zusammenfassung: | The octane number and/or the total yield of gasoline obtained by cracking a hydrocarbon chargestock in the presence of a cracking catalyst comprising an active catalyst component and a matrix, is improved when there is added to the cracking catalyst from 0.01 to 1 weight percent, based on the cracking catalyst, of a shape-selective promotor having a silica to alumina mole ratio of above 12 and a constraint index of 1 to 12 as particles thereof. |
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