Upgrading the Bottom of the Barrel with MIDAS® FCC Catalyst

Conversion of the heaviest feed hydrocarbons is critical to maximize FCCU profitability. MIDAS® FCC catalyst is designed to deliver deep bottoms cracking with excellent gas selectivity.

The superior bottoms destruction and catalytic stability of MIDAS is obtained from its open particle morphology. It is well known that mesoporosity is the key to bottoms conversion [1]. MIDAS offers more pore volume in the critical range than competitive offerings [Figure 1]. The design of MIDAS catalyst maximizes the balance of pores in the 100-600 Å range with an optimized ratio of weak to strong acid sites in the matrix. Balanced mesoporosity and optimized acid strength greatly improve the selectivity of bottoms cracking reactions that take place without the gas and coke penalty often observed with other high matrix catalysts.

Figure 1: MIDAS® retains the highest mesoporosity in commercial application

How it works

MIDAS® FCC catalysts optimize the three-step bottoms cracking mechanism of Zhao [2], shown in Figure 2, with the right balance between zeolite and matrix activity, or Z/M ratio. MIDAS can be formulated over a range of Z/M ratios to match your FCC operating objectives.

Figure 2: Minimize Coke Formation with Midas®

Commercial Experience

MIDAS® FCC catalyst technology has been used successfully in over 125 refineries worldwide. In 2009, MIDAS was recognized by Frost and Sullivan for leading Technology Innovation in North America Refinery Catalysts.

References1. M. M. Mitchell Jr., et al., Fluid Catalytic Cracking: Science and Technology, J. S. Magee, M. M. Mitchell Jr. (Eds.), Studies in Surface Science and Catalysis, Vol.

76, Elsevier, Amsterdam, 1993, p. 293.2. Zhao, et al., “FCC Bottoms Cracking Mechanisms and Implications for Catalyst Design for Resid Applications”; NPRA 2002, AM-02-53.3. W. R. Grace. (2010). Grace Receives Refining Innovation Award [Press release]. Retrieved from http://www.grace.com/Media/News

W. R. Grace & Co.-Conn. | 7500 Grace Drive | Columbia, MD 21044 | USA | +1.410.531.4000 | www.grace.com

The information presented herein is derived from our testing and experience. It is offered, free of charge, for your consideration, investigation and verification. Since operating conditions vary significantly, and since they are not under our control, we disclaim any and all warranties on the results which might be obtained from the use of our products. You should make no assumption that all safety or environmental protection measures are indicated or that other measures may not be required.

Version dated 08/2014