Ammonia Synthesis and Methane Dimerization in Solid Electrolyte Reactor Cells

固体电解质反应器电池中的氨合成和甲烷二聚

• 批准号: 8815927
• 负责人: Michael Stoukides
• 金额: $ 14.86万
• 依托单位: Tufts University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-02-15 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8815927&HistoricalAwards=false
• 关键词: Ammonia; Synthesis; Methane; Dimerization; Solid

High temperature proton conductors are solid state materials which are of interest because they can be used in heterogeneous catalysis in order to modify electrochemically the rates of hydro- and dehydrogenation reactions. Many such materials exist but few are of real engineering interest because they also need to have high electrical conductivity and mechanical strength. Such materials may be used in an electrolyte cell in the following configuration: Two porous metal film electrodes are deposited on the two sides of a disk made of a proton conducting material. One side is exposed to a hydrogen containing gas and serves as the anodic electrode while the other side (cathode) is exposed to a compound that can be hydrogenated via an exothermic chemical reaction. When placed in an electrical circuit, a proton flux is established and hydrogen is transferred from anode to cathode. Hydrogen reacts on the cathode while the electrical circuit converts the reaction free energy into electricity. Hence a useful chemical can be produced with simultaneous generation of electrical energy. The PI plans to test the proton conductor SrCe.95 Yb.05O3-a in such cells to produce ammonia from nitrogen and hydrogen and C2 hydrocarbons (e.g. ethylene) from methane while simultaneously cogenerating electricity.

高温质子导体是固态材料， 因为它们可以用于多相催化， 为了电化学地改变氢和 脱氢反应 许多这样的材料存在，但很少有 真实的工程兴趣，因为他们还需要有高 导电性和机械强度。 这样的材料可以 可用于以下配置的电解质电池中： 在圆盘的两侧沉积多孔金属膜电极， 由质子传导材料制成。 一面暴露在 含氢气体，并作为阳极电极，而 另一侧（阴极）暴露于可被氢化的化合物 通过放热化学反应。 当被放置在一个电 电路，建立质子通量，氢从 阳极对阴极 氢在阴极上反应，而电 电路将反应自由能转化为电能。 因此具有 有用的化学品可以同时产生 电能 PI计划在这种情况下测试质子导体SrCe. 95 Yb. 05 O3-a。 从氮、氢和C2生产氨的电池 从甲烷中分离碳氢化合物（例如乙烯），同时 热电联产