SBIR Phase II: Synergistic Combinations of New Materials & Systems for Scalable Desulfurization of Distributed Biogas Resources

SBIR第二阶段：新材料的协同组合

• 批准号: 1330968
• 负责人: Hongyun Yang
• 金额: $ 74.9万
• 依托单位: IntraMicron Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1330968&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Synergistic; Combinations

This Small Business Innovation Research Phase II project proposes a fundamentally new means for biogas/landfill gas desulfurization that produces negligible waste, allows for sulfur recovery/recycling, and provides annualized operating costs that are fraction of current practice. The proposed process consists of two synergistic components: a novel oxidative sulfur removal (OSR) catalytic reactor that produces elemental sulfur and a polishing adsorbent bed equipped with a unique in-situ bed-life sensor (BLS) that permits optimal adsorbent bed operation and cycling. The OSR catalyst has high contaminant tolerance, high selectivity to elemental sulfur, high activity, and low cost. After the OSR reaction and sulfur condensation, the outlet hydrogen sulfide concentration can be reduced to below 5 ppm at a conversion above 90%. If a polishing adsorbent bed is needed to achieve lower sulfur levels, it will be outfitted with an in-situ BLS that provides real-time adsorbent capacity monitoring to maximize adsorbent utilization. This approach is particularly effective for biogas/landfill gas streams with severe sulfur concentration variations; it reduces annualized operating costs by 50% to 65%, while reducing both solid waste generation (adsorbent consumption) and footprint by a factor of 10 - 30.The Broader impact/commercial potential of this project, if successful, will drastically change the landscape of biogas/landfill gas utilization by improving desulfurization economics and reducing desulfurization solid waste generation. The low-cost, environmentally benign nature of this process will not only improve the desulfurization efficiency of typical biogas sources, but it will facilitate the development of small-scale and/or high-sulfur-content biogas/landfill gas sources for renewable fuel and energy applications. Moreover, the proposed approach can eliminate large sulfur adsorbent beds for almost all current biogas/landfill gas applications with high outlet sulfur thresholds (i.e. direct heating, power generation and combined heat and power), and shrink the size of desulfurization units for advanced applications with low outlet sulfur thresholds (i.e. fuel cells and GTL). Its small footprint and scalability make this technology favorable for mobile, small-scale applications. Besides biogas/landfill gas, other gas streams including natural gas, associated gas, petroleum gas, and syngas from a variety of sources can be desulfurized using this process. BTL, CTL, GTL, and renewable electric power generation will benefit from the success of this innovation. The proposed innovation directly addresses the energy independence and security of our nation (EISA 2007).

这个小型企业创新研究阶段II阶段项目提出了一种从根本上进行沼气/垃圾填埋气脱硫的新手段，该方法可产生可忽略不计的废物，允许硫恢复/回收利用，并提供年度运营成本，这是当前实践的一部分。提出的过程由两个协同组件组成：一种新型的氧化硫去除（OSR）催化反应器，该反应器可产生元素硫和配备有独特的原地床位传感器（BLS）的抛光吸附床，允许最佳的适应性床和循环。 OSR催化剂具有较高的污染物耐受性，对元素硫的高选择性，高活性和低成本。 在OSR反应和硫凝结后，在转化率高于90％的情况下，硫化物浓度可以降低至5 ppm。如果需要抛光吸附剂床以达到较低的硫水平，它将配备原地BLS，可提供实时吸附的容量监测，以最大程度地利用吸附剂。这种方法对于具有严重硫浓度变化的沼气/垃圾填埋气流特别有效。它将年度运营成本降低了50％至65％，同时将固体废物产生（吸附剂消耗）和足迹降低了10-30倍。如果成功的话，该项目的更广泛的影响/商业潜力将大大改变生物群/垃圾燃气的景观，从而通过改善避难所的经济化经济化和固体化的生长而改善杀伤力的固定化产量，并产生固体化生成。该过程的低成本，环境良性的性质不仅会提高典型沼气源的脱硫效率，而且还将促进用于可再生燃料和能源应用的小规模和/或高硫磺含量的沼气/垃圾填充气源的发展。此外，提出的方法可以消除几乎所有当前所有沼气/垃圾填埋气施用，具有高出口硫阈值（即直接加热，发电，加热和电力），并缩小用于高级应用的耗竭单位的尺寸低的出色硫阈值（即燃料阈值）（即燃料的燃料燃料和GT）。它的小占地面积和可扩展性使得该技术有利于移动，小规模的应用程序。除了沼气/垃圾填埋气外，还可以使用此过程将来自多种来源的其他气体流，包括天然气，相关气体，石油气体和同性气体。 BTL，CTL，GTL和可再生电力发电将受益于这项创新的成功。拟议的创新直接解决了我们国家的能源独立性和安全性（EISA 2007）。