• With gasoline demand picking up, are North American refineries tight on octane supply, and how do you manage an octane supply constraint?



  • Mrinal Banerjee, Indian Oil Corporation Limited, mrinalelectric@gmail.com

    Although I work in the opposite side of the globe, and know nothing of the first part of your question, I can maybe give some perspective on the second part.

    Having worked in an Axens Prime-G+ unit for a long time, I can confidently say that some elementary stuff like maintaining the correct draw temperatures in the De-Isohexaniser column can push up your total octane in the blend by a huge 2 to 3 points.

    Similarly FCC gasoline split has to be optimised to balance product sulphur and octane.

    Having worked in an FCC also, I can safely say that the specialty catalyst that you feed into your Fresh Cat mix plays a huge role in providing you that extra octane push. You can optimise ZSM-5 addition to your normal US-Y zeolite to give a lighter, higher octane gasoline that will tremendously boost your gasoline pool.

    These are only a few ways to boost your gasoline RON/MON without even thinking about octane or octane booster chemical addition. MTBE/octane blending is a passe in my part of the world. We still maintain at least 91 octane gasoline, and occassionally do produce batches of 100 octane gasoline as per market demand.



  • Roberto Amadei, Chemical & Energy Development SrL, ing.amadei@gmail.com

    We can suggest a way for increasing the octane and improving other numerous gasoline production parameters (that is for significantly increasing the GRM) and contextually getting climate change mitigation and other mprovements, without a negative effect of any kind. This measure is at negligible or no capital cost.

    The above is a know-how of ours, holding United States and European patents.