APPLICATION OF C5/C6 ISOMERIZATION CATALYST RISO-C IN 80 kt/a ISOMERIZATION UNIT

PETROLEUM PROCESSING AND PETROCHEMICALS ›› 2021, Vol. 52 ›› Issue (11): 48-51.

APPLICATION OF C₅/C₆ ISOMERIZATION CATALYST RISO-C IN 80 kt/a ISOMERIZATION UNIT

Received:2021-05-27 Revised:2021-07-26 Online:2021-11-12 Published:2021-10-29

Abstract

Abstract: To meet China Ⅵ gasoline standard, the PetroChina Yumen Oilfield Branch Company Oil Refining and Petrochemical General Plant completed the technical innovation of original C₅/C₆ isomerization unit, added the feedstock and circulating hydrogen drying and regeneration system, and replaced the original catalyst by the solid super-acid catalyst RISO-C. This unit could convert the reforming topped oil to gasoline blending component with high octane number, which effectively reduces the olefins and aromatics content of China Ⅵ gasoline pool. The revamped unit was started successfully in November, 2019, and the results of performance test of unit show that the isomerization ratio of C₅ is more than 68%, the isomerization ratio of C₆ is more than 83%, reaching the target of design and demonstrating the excellent performance of catalyst, which can meet the need of long term run of unit.

Key words: isomerization, catalyst, octane number, topped oil

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APPLICATION OF C₅/C₆ ISOMERIZATION CATALYST RISO-C IN 80 kt/a ISOMERIZATION UNIT

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