SBIR Phase I: Synthesis of Hydrogen Peroxide Directly from Hydrogen and Oxygen on a Phase-Controlled Palladium Catalyst

*9760555周这个小企业创新研究第一阶段项目建议开发一种使用高选择性催化剂从氢气和氧气中直接合成过氧化氢的工艺。目前的商业流程很复杂，而且是基于蒽醌的自氧化。人们曾多次尝试用一种简单、直接的合成方法来取代这一过程。然而，由于活性和选择性较低或爆炸极限所规定的操作限制，这些尝试都不具有商业可行性。这一阶段的主要目标是开发新一代相控型Pd催化剂，该催化剂的功能将低于爆炸下限，并将保持高活性和选择性。将使用封端聚合物来控制催化剂上Pd的形态，以暴露所需的晶相。这项研究将带来一种成本效益高的工艺，因为它简单：不需要有机溶剂，降低了提纯成本，加工步骤更少。与目前的商业流程相比，预计可能节省20%-30%。直接合成法有两个潜在的利基市场：由于其超纯和不含有机的产品而被应用于临床，以及由于其简单性而在纸浆和造纸工业中用作漂白剂，这使得现场生产成为可能。***

*** 9760555 Zhou This Small Business Innovation Research Phase I project proposes to develop a direct synthesis process for hydrogen peroxide from hydrogen and oxygen using a highly selective catalyst. The current commercial process is complex and based on autoxidation of anthraquinone. Many attempts have been made to replace this process with a simple, direct synthesis. However, none of the attempts have been commercially feasible due to the low activity and selectivity or the operating limitations set forth by explosion limits. The main objective in this Phase I is to develop a new generation phase-controlled Pd catalyst that will function below the lower explosion limit and will remain highly active and selective. A capping polymer will be used to control the morphology of Pd on the catalyst, in order to expose the desired crystal phase. The research will lead to a cost efficient process due to its simplicity: no organic solvent, reduced purification cost, and fewer processing steps. A potential saving of 20 - 30 % over the current commercial process is anticipated. The direct synthesis process has two potential niches: clinical applications due to its ultra-pure and organic-free product, and as bleach in the pulp and paper industry due to its simplicity which makes on-site production viable. ***