SBIR Phase I: Zeolite Membrane Reactors for Enhancement of Dehydrogenation Selectivity

*** 9661637 Romero在一期中，TDA将制造致密、无裂纹的沸石膜，支撑在多孔氧化铝支撑管的内部。在填充床催化反应器中，用商业氧化铁催化剂填充，将演示苯乙烯产量的增加。反应将在有沸石膜和没有沸石膜的反应器中进行，以量化膜所取得的改进，并进行工程分析。在第二阶段，他们计划优化支撑沸石膜的制备，对温度、压力和蒸汽稀释对机械稳定性、产量提高、再生能力和老化的影响进行彻底的调查，并进行广泛的工程分析。采用沸石分子筛膜反应器将乙苯脱氢平衡向产品转移，可提高苯乙烯收率，降低下游分离成本。这将为该行业节省大量成本。＊＊＊

*** 9661637 Romero In Phase I, TDA will fabricate dense, crack-free zeolite membranes supported on the interior of a porous alumina support tube. The increase in styrene production in a packed bed catalytic reactor, packed with a commercial iron oxide catalyst will be demonstrated. The reaction will be conducted in a reactor with and without the zeolite membrane to quantify the improvement achieved with the membrane, and carry out an engineering analysis. In Phase II they plan to optimize the preparation of supported zeolite membranes, carry out a thorough investigation of the effects of temperature, pressure and steam dilution on mechanical stability and yield improvement, regeneration capability, and aging, and perform an extensive engineering analysis. The commercialization of a zeolitic molecular sieve membrane reactor to shift the equilibrium of the dehydrogenation of ethylbenzene to styrene towards the products could increase styrene yields, and decrease downstream separation costs in this high-volume production process. This would result in a significant cost savings for the industry. ***