Motor fluid catalytic cracking

Octane barrel yield a measure used to evaluate fluid catalytic cracking processes defined as (RON + MON)/2 times the gasoline yield, where RON is the research octane number and MON is the motor octane number. 

REFINING SRC-II OIL BY HIGH SEVERITY HYDROTREATING AND FLUID CATALYTIC CRACKING TO PRODUCE 50,000 BARRELS PER CALENDAR DAY OF MOTOR GASOLINE DOE CONTRACT EF-76-C-O1-2315 ... 

Fluid Catalytic Cracking revolutionized the oil industry and provides about half of the motor gasoline used today. This spectacular growth is shown in Figure 1. It is therefore of interest to examine the history of inception and development of the processs as recorded by some of the primary participants. 

Prior to 1938, gasoline was obtained from thermal-cracking plants then the Houdry fixed-bed catalytic cracking process led to the development of a fluidized-bed process by Standard Oil for the catalytic production of motor fuels (4-8). Acid-treated clays of the montmorilIonite type were the first fluid-cracking catalysts widely employed by the industry. However, the ever greater demand for aviation fuels during the 1939-1945 period prompted the search for more active and selective catalysts. Research on novel catalyst... 

Pappal, D. A., and Schipper, P. H. Increasing motor octanes by using ZSM-5 in catalytic cracking, Riser pilot plant gasoline composition analyses. ACS Symp. Ser., 452, Fluid Catal. Cracking, pp. 45-55 (1991). 

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