Method for producing high-octane petrol
A technology for high-octane gasoline and heavy gasoline, applied in gasoline stabilization, petroleum industry, cracking, etc., can solve the problems of large olefin loss and low gasoline yield, increase gasoline yield and octane number, and avoid olefins The effect of excessive loss
Active Publication Date: 2009-07-01
CHINA PETROLEUM & CHEM CORP +1
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AI-Extracted Technical Summary
Problems solved by technology
The invention relates to a method for producing high-octane petrol, which comprises the following steps: introducing raw oil into a catalytic cracking reactor to be contacted with a catalyst and react under the catalytic cracking reaction condition; separating the reaction oil gas and the catalyst to be generated which is reclaimed after steam stripping and regeneration; introducing the reaction oil gas into a subsequent fractionation part; and separating out heavy petrol and light diesel fuel fractions with the distillation range of between 100 and 300 DEG C by the fractionation part, and pouring the fractions with or without hydrogenation into the catalytic cracking reactor for freshening. By adopting the method, a common catalytic cracking unit and a common catalyst can be used, the prior device is unnecessary to be changed significantly, and the heavy petrol and the light diesel fuel fractions are introduced back into the catalytic cracking reactor respectively for freshening with major reactions of chain scission reaction of arene lateral chains and transalkylation reaction so as to improve the petrol yield and the octane number.
Catalytic crackingGasoline stabilisation
- Experimental program(2)
- Comparison scheme(1)
Description & Claims & Application Information
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