How does coker gasoline increase octane rating? What is the best processing route?

It is difficult to increase the octane number of coker gasoline; our plant is designed to subject coker gasoline to direct hydrogenation, while at present catalytic gasoline is processed in a riser； The best processing route is to use it as ethylene feedstock, as coker naphtha is a cheap and high-quality raw material for ethylene cracking

Our coker gasoline is hydrogenated and then sold as feedstock for ethylene production.

1. If the total amount of straight-run steam and coker steam used in your facility is over 50,000 tons, you may consider processes such as aromatization and isomerization. . . 2. If the total amount of straight-run steam and coker steam produced by your facility is over 100,000 tons, you may consider the catalytic reforming process. . . This is the best way currently to increase the octane rating of coker gas and straight-run gas. . . :lol

It is difficult to increase the octane rating of cokered gasoline without using specialized equipment; the only solution is to blend the oil products. Even when such equipment is used, blending is done only to a partial extent.

How does coker gasoline increase octane rating? ⒈Add MTBE ； ⒉After hydrorefining, it enters the reforming system ； ⒊After hydrorefining, isomerization follows. What is the best processing route? It undergoes hydrogenation refining; due to its high aromatic content, it has a relatively high octane rating and stable oil quality.

Coker gasoline is most suitable for use as feedstock for ethylene after hydrogenation; due to its low octane rating, its proportion in blended gasoline is very small, so large amounts of high-octane MTBE or manganese compounds are required

Coker gasoline must first be hydrogenated, and then undergo further processing. Due to its high proportion of straight-chain alkanes, it is an excellent raw material for ethylene cracking. At the same time, if the enterprise’s catalytic unit employs dual riser or two-stage riser technology, the hydrocracked naphtha can be appropriately fed into the light oil riser (stage) for catalytic cracking in order to increase propylene production. Consequently, the proportion of branched alkanes and cycloalkanes is low; there is a limited potential for aromatization, and the ability to isomerize or aromatize is weak. As a result, the improvement in octane number through aromatization or catalytic reforming is limited, so it is necessary to carefully analyze the economic viability of such processes. However, if the company’s catalytic reforming unit already has naphtha feedstocks with a high aromatic potential, hydrogenated coker gasoline can also be blended in at an appropriate proportion.