SIMTO^® M-Blend for Naphtha Feedstock Blending

• Minimizing cost and quality giveaway of multiple blends over multiple periods in the schedule horizon, while honoring constraints in specifications, materials, logistics, and processing unit schedules.
• Avoiding the problem of optimizing a single blend at the risk of inventory shortage and unit shutdown or slowdown for subsequent blends.
• Controlling critical properties close to the optimal targets to improve product yields for processing units. For example, a reformer needs high aromatic naphtha, but a steam cracker to produce ethylene or a steam reformer to produce fertilizer needs low aromatic naphtha. Specific aromatic targets depend on the processing units.
• Controlling other secondary properties for better yields or longer catalyst life. For example, a greater n-paraffin/iso-paraffin ratio gives better ethylene yield; low sulfur contents prolong the Ni-catalyst life in steam reformers; low olefin contents reduce coking in preheaters.
• Predicting blend properties accurately with versatile blending methods including linear blending, bonuses, formulas, interactions, and dynamic libraries.
• Blending the naphtha feed consistently for stable operation and consistent product quality.
• Managing inventory economically by accurately predicting demands of blend stocks.
• Increasing plant flexibility with the ability to adapt quickly to changes in quantities and qualities of naphtha streams.
• Managing blend specifications and blending methods through a blend knowledge base.