Mixed Conducting Membrane for Spontaneous Sulfur Recovery

用于自发硫回收的混合导电膜

• 批准号: 9260336
• 负责人: Anthony Sammells
• 金额: $ 5万
• 依托单位: Eltron Research, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9260336&HistoricalAwards=false
• 关键词: Mixed; Conducting; Membrane; Spontaneous; Sulfur

This research is aimed at developing a perovskite membrane system for the conversion of hydrogen sulfide (H2S) into water and elemental sulfur. The starting point of the process is the introduction of H2S on one side of the membrane. The system is heated to cause the thermal decomposition of the hydrogen sulfide gas into hydrogen gas (H2) and sulfur. This reaction is further promoted by depositing a catalyst on the face of the membrane to promote the decomposition. The H2 formed will be oxidized to H+ and an electron, and these charged species will be conducted across the membrane. The opposite end of the membrane will be exposed to air and will be coated with a La0.9Sr0.1 CoO3 catalyst. This catalyst will mediate the reaction of the migrating H+ and electron species arriving at the opposite face with oxygen available from the air to form water. The process promises to be a low cost method for removing hydrogen sulfide from the product gases of coal gasification and heavy oil desulfurization, and thereby allowing these reject gases to conform to environmental emission regulations.

本研究的目的是开发一种钙钛矿膜 用于将硫化氢（H2S）转化为水的系统 和元素硫。 这个过程的起点是 在膜的一侧引入H2S。 的 系统被加热，导致热分解， 硫化氢气体转化为氢气（H2）和硫。 这 通过将催化剂沉积在所述催化剂上进一步促进反应。 膜的表面，以促进分解。 的H2 会被氧化成H+和一个电子， 带电物质将被传导穿过膜。 的 膜的另一端将暴露于空气中 用La0.9Sr0.1CoO3催化剂涂覆。 这种催化剂将 介导迁移的H+和电子物种的反应 到达对面的氧气可从 空气形成水。 这一过程的成本很低 一种从气体产品中除去硫化氢的方法， 煤气化和重油脱硫，从而 允许这些排出气体符合环境 排放法规。