Fluid Catalytic Cracking Patents – 2018/2019: Catalyst Systems
This is an article in a series reviewing Fluid Catalytic Cracking (FCC) patents granted in approximately the last year. In particular, the patents highlighted here relate to FCC catalyst and additive systems. One take-away from this review is that the number of such patents as a percentage of the entirety of FCC-related patents, including those related to equipment, processes, feed treatment, environmental, etc., is down to less than a quarter. This may reflect a shift in research dollars away from the catalyst area, or at least a shift in those research dollars directed to acquiring patentable inventions. The second take-away is that the catalyst related patents are largely directed to integral multiple zeolite systems for increasing light olefins production, such as USY and ZSM-5. This was already a fairly crowded area, however, in U.S. Patent No. 10,173,206 assigned to Albemarle Europe SPL, an interesting approach was to combine a Y zeolite exchanged with a non-rare earth material selected from magnesium, calcium or strontium, with a ZSM-5 zeolite, where the ratio of the two zeolites was specified.