SBIR Phase I: Ceramic Membrane Reactor Utilizing a Packed Catalytic Bed for Converting Hydrogen Sulfide to Sulfur and Steam

9860494 这个小型企业创新研究第一阶段项目试图通过Eltron开发的新型催化膜技术将有毒气体硫化氢自发转化为有用的副产品（元素硫和蒸汽）。该方法依赖于应用专有的混合氧阴离子和电子传导性棕沸石膜和金属硫化物基H2S分解催化剂，其对于促进主题反应是相容的。这些催化膜反应器将具有一般配置： H2S、AB 2S 4（或MS 2）/Sr 2-xLaxDyFe 2-yOs 5 +x/2/La0.8SrO.2CoO3（或Ag）、O2（空气）。 将评价管式膜反应器系统在700-900 ℃下将H2S催化分解为H2和S，然后通过陶瓷膜将氧气氧化为蒸汽。然后将优选的膜组件结合到利用分散的金属硫化物填充床的反应器中以进一步分解硫化氢。第一阶段的工作将确定促进H2S直接转化为元素硫和蒸汽的优选组分（陶瓷膜、氧化表面催化剂和填充床催化剂）和最佳工艺操作条件。 该计划的成功完成将导致混合氧阴离子/电子传导膜技术的开发，该技术能够有效地促进硫化氢直接转化为元素硫和水。由于其更通用的性质和潜在的更低的成本，这种膜技术将找到替代用于处理H2S的当前克劳斯处理单元的商业应用。天然气加工业、炼油业和下一代燃煤电厂（煤气化）都将对这项技术感兴趣。

9860494 This Small Business Innovation Research Phase I project is an attempt to spontaneously convert the toxic gas hydrogen sulfide into useful byproducts (elemental sulfur and steam) via novel catalytic membrane technology developed at Eltron. The approach relies upon the application of proprietary mixed oxygen anion and electron conducting brownmillerite membranes and metal sulfide-based H2S decomposition catalysts which are compatible for promoting the subject reaction. These catalytic membrane reactors will possess the general configuration: H2S, AB2S4 (or MS2)/Sr2-xLaxDyFe2-yOs5+x/2/La0.8SrO.2CoO3 (or Ag), O2 (air). Tubular membrane reactor systems will be evaluated for catalytically decomposing H2S to H2 and S at 700-900 C followed by hydrogen oxidation to steam from oxygen mediated through the ceramic membrane. Preferred membrane components will then be incorporated into reactors utilizing a dispersed metal sulfide packed bed to further the decomposition of hydrogen sulfide. Work in Phase I will result in the identification of preferred components (ceramic membrane, oxidation surface catalyst, and packed bed catalyst) and optimal process operating conditions for promoting the direct conversion of H2S into elemental sulfur and steam. Successful completion of this program will result in the development of mixed oxygen anion/electron conducting membrane technology capable of efficiently promoting the direct conversion of hydrogen sulfide into elemental sulfur and water. Due to its more versatile nature and potentially lower costs, this membrane technology will find commercial application for replacing current Claus processing units for the treatment of H2S. The natural gas processing industry, petroleum refining industry, and next generation of coal-fired power plants (coal gasification) all will have an interest in this technology.