The EMTAM process, which is highly selective to PX, uses a proprietary selectivated zeolite catalyst which is continuously regenerated to ensure stable and consistent product yields throughout the cycle. The fluidized bed process also features high toluene conversion per pass, optimized process conditions (toluene to methanol ratio, water co-feed, superficial velocity…) and a proprietary staged methanol injection system aimed at maximizing methanol utilization for the methylation reaction and minimizing by-products formation. When the toluene methylation unit is close to an ethylene facility, the off-gas can be upgraded to higher-valued olefins products. The EMTAM process lowers feed and energy costs which represent ~75% of the operating cost in a state-of-the-art naphtha to PX complex.
