Olefin Reduction of FCC Naphtha Using β-zeolite Catalyst in the Absence of Hydrogen |
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Authors: | L. Lihua Z. Jinshen |
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Affiliation: | a School of Petroleum and Chemical Technology, Liaoning University of Petroleum and Chemical Technology, Liaoning, Fushun, China |
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Abstract: | In order to fulfill the requirement of environmental protection, experimentation of reducing FCC gasoline olefin content and optimization of the process operating conditions were studied in a small fixed vector. Under the action of a macroporous molecular sieve catalyst, which consists of active composition of Ni and Mo metal in β-zeolite supporter, when the reaction temperature was 140°C, reaction pressure was 2.0 MPa, and space velocity was 1.0 h-1-2.0 h-1, aromatization reactions, isomerization reactions, and hydrogen transfer reactions happened, so that the olefin, benzene, and arene in product gasoline were no more than 35%, 2.5%, and 40%, respectively. The octane number of petroleum is slightly increased. And it overcomes the disadvantage of losing octane by hydrogenation process. The catalyst could be regenerated using a multi-cycle with an average running cycle of about 96 hr. The results show that the process reaction condition is relaxation, process is non-hydrogenation, process flow is simple, technical and economic target is advanced, benefit is high, and cost is low. |
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Keywords: | catalytic cracking gasoline olefin process conditions |
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