OlefinsExtra™,OlefinsMax™ and OlefinsUltra™ ZSM-5 Additives

ZSM-5 Technology Summary:

ZSM-5 is a shape-selective zeolite used in the FCC process for improved gasoline octane and increased light olefins. In 1984, Grace Davison introduced Additive-O, the first FCC additive to incorporate ZSM-5. Additive-O offered refiners the ability to respond to the octane shortfall created by the phase-out of lead from gasoline.
Since the introduction of our first ZSM-5 additive, Grace Davison has continued to develop products with even higher activity to meet the demands of the refining industry. Our ZSM-5 additive product portfolio includes OlefinsExtra (O-HS™) as well as the most widely used ZSM-5 additive in the industry, OlefinsMax. Recently, Davison successfully commercialized the next generation of ultra-high activity additives, OlefinsUltra. All three products contain unique matrix technology that ensures maximum zeolite activity, stability and utilization. Additive physical properties (attrition resistance, average bulk density and particle size distribution) are designed to be compatible with the FCC catalyst.

Product Portfolio:

OlefinsExtra contains a moderate level of ZSM-5 crystal and is an excellent choice for refiners wishing to achieve the maximum increase in gasoline octane with a moderate increase in light olefins selectivity.

OlefinsMax is recommended for refiners who desire high yields of light olefins and octane boost that would otherwise require higher concentrations of less active ZSM-5 additives. OlefinsMax is an option for units operating under a cat to oil constraint.

A breakthrough in matrix technology has allowed the introduction of the novel, ultra-high activity additive, OlefinsUltra. OlefinsUltra is the most active ZSM-5 FCC additive currently available on the market and contains the most ZSM-5 crystal allowable under a new license agreement. OlefinsUltra is the ideal choice for refiners wishing to maximize the production of light olefins, especially propylene from the FCC unit where very high levels of conventional additives would be required that would otherwise result in dilution of the circulating catalyst inventory. OlefinsUltra applications around the world continue to increase as the refining industry turns to ultra-high activity ZSM-5 additives to more cost-effectively meet their light olefins requirements.

Applications:

• Raise propylene yield for petrochemical applications
• Increase butylenes yield for alkylation, MTBE
• Increase gasoline pool octane and reduce sensitivity
• Maintain FCC gasoline octane while in an LCO maximization mode

Typical Properties:

Packaging:

• 350 lb steel drums
• 1 ton flow bins or super sacks
• 20 ton pneumatic tank trucks
• Preblended with fresh catalyst shipments

Technical Service:

• Selection of the optimal usage rate
• Assistance during additive testing
• Monitoring unit performance
• Analyzing equilibrium catalyst during the test period
• Injection system equipment

The information contained herein is based upon our testing and experience and is believed to be accurate. Since operating conditions may vary and since we do not control such conditions, we must disclaim any warranty, express or implied, with regard to results to be obtained from the use of our products or with regard to application of Davison techniques.

For more detailed information on Davison's Light Olefins products and services, current propylene market analysis, as well as training modules and our technical library, please refer to the Light Olefins section in e-Catalysts.com.