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I-Corps: Low carbon method of hydrogen gas production from hydrogen sulfide

I-Corps：用硫化氢生产氢气的低碳方法

基本信息

批准号：
2043000
负责人：
Roman Lubynsky
金额：
$ 5万
依托单位：
Massachusetts Institute of Technology
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-08-01 至 2023-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2043000&HistoricalAwards=false
关键词：
Corps Low carbon method hydrogen

项目摘要

The broader impact/commercial potential of this I-Corps project is to explore translation of environmentally friendly ways to produce hydrogen gas from hydrogen sulfide, a waste stream common in energy operations. The sulfur content of extracted hydrocarbons is increasing, and these sulfur-heavy gases require additional processing. The proposed technology cleans this sulfur-heavy gas in a sustainable process.This I-Corps project is based on the development of a technology for low carbon production of hydrogen gas from sulfur-rich gas streams common at oil and gas production and processing facilities. The technology is a chemical looping process that produces hydrogen from hydrogen sulfide and water via iodine intermediates. The process comprises two reaction and two separation steps. The first step is the reaction of hydrogen sulfide, water, and iodine to produce hydroiodic acid and sulfur dioxide. The second step requires the degassing of sulfur dioxide from the aqueous mixture at elevated temperatures. The mixture is vaporized and the hydrogen iodide is catalytically decomposed into hydrogen gas and iodine. This reaction step has been particularly well explored, with many experiments testing various catalysts and conversion rates. Finally, the stream is cooled, and hydrogen gas is flash separated from the mixture of iodine, water, and hydroiodic acid.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这个I-Corps项目的更广泛的影响/商业潜力是探索从能源业务中常见的废物流硫化氢生产氢气的环境友好方式的转化。提取的烃类的硫含量正在增加，这些含硫重的气体需要额外的处理。拟议的技术在一个可持续的过程中清洁这种含硫重的气体。这个I-Corps项目的基础是开发一种从石油和天然气生产和加工设施中常见的富硫气流中低碳生产氢气的技术。该技术是一种化学循环过程，通过碘中间体从硫化氢和水生产氢气。该方法包括两个反应和两个分离步骤。第一步是硫化氢、水和碘反应生成氢碘酸和二氧化硫。第二步需要在高温下从含水混合物中脱气二氧化硫。混合物蒸发，碘化氢催化分解成氢气和碘。该反应步骤已经被特别好地探索，许多实验测试了各种催化剂和转化率。最后，冷却该物流，并从碘、水和氢碘酸的混合物中闪蒸分离氢气。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。