LeMar produces units to boost gasoline octane number using ultrasonic technology. Gasoline with low octane number will ignite pre-maturely and modern engines require automotive fuels with octane number of 87 or higher.                                                

The octane number of straight-run gasoline (from 70 to 78) can be improved by blending with high octane compounds such as alcohols (ethanol, methanol, etc) or by isomerizing straight chain paraffins (i.e. pentane, hexane, heptane, etc) into branched chain paraffins; branched chain paraffins have higher octane numbers then straight chain paraffins. The traditional process of obtaining high-octane gasoline in refineries includes two parts: isomerization through high temperature and pressure catalytic reaction blending with high-octane additives using mechanical mixers. The use of these processes is cost-prohibitive for smaller refineries.

LeMar Industries offers an alternative that takes advantage of ultrasound technology which has a relatively low capital cost, minimal operating costs, and very small spacing requirements. 

                                                                                                                                                                                                                                          

Traditional Fuel Blending System Shortfalls                                                                                                                                                                                                                                        

Blending systems traditionally used for mixing gasoline with alcohols is prone to insufficient dispersion of the two liquid fuels. This insufficient dispersion results in low stability. Mixed fuel is prone to separation of alcohol from the gasoline (see below, left picture) within a few days. The separated fuel will not meet quality specifications for automotive use and will need to be run through the blending system again. 

LeMar Industries combines blending with ultrasound technology (Industrial Sonomechanics ISP-3000) and isomerization process resulting in blended fuel that will remain stable for over 60 days (see below, right picture).

                                                      

                     This picture shows separation between             This picture shows a stable gasoline-

             the gasoline and ethanol due to                      ethanol fuel mixture stable for over

                    insufficient blending                                        60 days using ultrasound

 

LeMar Industries Blending Unit                                                                                                                                                                                                           

The combination of a horizontal blender with one or more high-intensity ultrasound units (Industrial Sonomechanics ISP-3000) efficiently combines the flexibility of multi-stream adjustable blending, thorough blending intensity, and isomerization of straight-chain paraffins. The horizontal blending system itself is an intelligent blend controller capable of precision-controlling the flows of 2 to 4 fuels/additives in a “wild stream” configuration; this controller is easily programmable to adjust to the clients’ specifications.

 

Ultrasound systems create a significantly finer dispersion of alcohol into gasoline through an intense cavitation process. To further promote reaction, ZSM-5 catalyst is used.