SBIR Phase I: Enhanced Desulfurization of Gasoline

SBIR第一阶段：汽油强化脱硫

• 批准号: 9960671
• 负责人: Stuart Nemser
• 金额: $ 10万
• 依托单位: COMPACT MEMBRANE SYSTEMS, INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-01-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9960671&HistoricalAwards=false
• 关键词: SBIR; Phase; Enhanced; Desulfurization; Gasoline

This Small Business Innovative Research Phase I project will facilitate the development of gasoline and diesel fuel biodesulfurization (BDS). Recent domestic and international targets have been set to reduce the leads in fuel to less than 100 ppm (present regulations are over 300 ppm). Conventional hydrodesulfurization (HDS) is costly and works poorly at these low concentrations of sulfur. In this program we will develop stable non-wetting membrane contactors to provide bubbleless oxygen delivery to grow bacteria for BDS of gasoline and other fuels. Providing non-flammable oxygen delivery is major obstacle to commercial development of gasoline based BDS. Present oxygen delivery technologies introduce oxygen bubbles to fuel, but our membrane is hypothesized to dissolve oxygen directly into liquid. Also, unlike conventional microporous membranes,our membranes should not wet out over time. This new technology, if successful, should help make BDS viable commercial alternative to HDS allowing gasoline producers to further reduce sulfur levels with low cost high quality process. In Phase I, we will demonstrate process using dibenzothiophene as surrogate fuel. We will measure rate of oxygen transfer and sulfur conversion. Economic analysis and durability testing will verify potential of process.

这个小企业创新研究第一阶段项目将促进汽油和柴油燃料生物脱硫（BDS）的发展。最近的国内和国际目标是将燃料中的铅含量降低到100ppm以下（目前的规定是300ppm以上）。传统的加氢脱硫（HDS）是昂贵的，并且在低硫浓度下效果不佳。在这个项目中，我们将开发稳定的非润湿膜接触器，为汽油和其他燃料的BDS提供无气泡氧气输送，以培养细菌。提供不可燃的氧气输送是汽油基北斗系统商业化发展的主要障碍。目前的氧气输送技术将氧气气泡引入燃料，但我们的膜被假设为将氧气直接溶解为液体。此外，与传统的微孔膜不同，我们的膜不会随着时间的推移而变湿。这项新技术如果成功，将有助于BDS成为HDS的可行商业替代方案，使汽油生产商能够以低成本、高质量的工艺进一步降低硫含量。在第一阶段，我们将演示使用二苯并噻吩作为替代燃料的工艺。我们将测量氧转移和硫转化的速率。经济分析和耐久性试验将验证该工艺的潜力。