SBIR Phase I: One-Step MembraneReactor-based Process for Conversion of Biomass Gasifier Off-gas to Syngas Ready for Alternative Fuel Syntheses

SBIR 第一阶段：基于膜反应器的一步式工艺，将生物质气化炉废气转化为可用于替代燃料合成的合成气

• 批准号: 0839653
• 负责人: Paul Liu
• 金额: $ 10万
• 依托单位: Media and Process Technology Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-01-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0839653&HistoricalAwards=false
• 关键词: SBIR; Phase; Step; MembraneReactor; based

This Small Business Innovation Research Phase I project will develop a one-step membrane reactor-based process to clean-up, concentrate, and condition bio-based syngas to make it suitable for downstream processing into fuel or chemicals. The biomass-based energy production pathway has been favored recently due to no/minimal net CO2 emission. The recent skyrocketing prices of imported crude have made domestically available biomass a very attractive alternative fuel and chemical source. Thermochemical conversion of biomass into fuels and chemicals has been considered one of the better developed bio-based energy production processes. However, today for thermochemical conversion of biomass to play a significant role in reducing our country's dependence on imported fossil fuels, the syngas generated during biomass gasification must be (i) meticulously cleaned to remove trace contaminants (e.g., tar, H2S, NH3, HCl, etc.), (ii) concentrated via removal of a broad range of diluents (e.g., N2, O2, CH4, etc.), and (iii) conditioned to the proper ratio to meet the feedstock requirements of such diverse products as hydrogen for fuel cells or syngas for methanol and higher alcohol synthesis and for hydrocarbon production via Fischer-Tropsch. During Phase I of this project, the gas clean-up/concentration/conditioning process based upon the proposed one-step concept will be demonstrated in a bench top unit with synthetic feeds. The experimental and simulation results thus generated will be used to validate the proposed technical concept and provide economic basis for the next phase technical and commercial development with an end user participant.The development of this process will play a pivotal role in linking the existing upstream biomass gasification technology with the downstream hydrogen or syngas use technology. The production cost using existing technology was about 2 to 4 times of the cost of fossil diesel in 2004. By implementing this technology, the projected bio-based fuel cost will be in line with current fossil fuel prices according to preliminary cost analyses. The development and commercialization of this process will play a pivotal role in linking the existing upstream biomass gasification technology with the downstream syngas to fuel/chemical conversion technologies and will boost the domestic energy supply with minimal net greenhouse gas emissions.

这个小型企业创新研究第一阶段项目将开发一种基于膜反应器的一步式工艺，用于清理、浓缩和调节生物基合成气，使其适合下游加工成燃料或化学品。由于无/极低的二氧化碳净排放，生物质能源生产途径最近受到青睐。最近进口原油价格的暴涨使得国内可获得的生物质成为非常有吸引力的替代燃料和化学来源。生物质热化学转化为燃料和化学品被认为是较发达的生物基能源生产过程之一。然而，今天，为了使生物质热化学转化在减少我国对进口化石燃料的依赖方面发挥重要作用，生物质气化过程中产生的合成气必须(i)仔细清洗以去除微量污染物（如焦油、H2S、NH3、HCl等），（ii）通过去除多种稀释剂（如N2、O2、CH4等）进行浓缩，（iii）调节到适当的比例，以满足各种产品的原料要求，如燃料电池所需的氢气或甲醇和高级酒精合成的合成气，以及通过费托合成法生产碳氢化合物。在这个项目的第一阶段，基于提议的一步概念的气体净化/浓缩/调节过程将在一个带有合成原料的台式装置上进行演示。由此产生的实验和模拟结果将用于验证建议的技术概念，并为下一阶段的技术和商业发展提供经济基础，并有最终用户参与。该工艺的开发将在连接现有上游生物质气化技术与下游氢气或合成气利用技术方面发挥关键作用。2004年，使用现有技术的生产成本约为化石柴油成本的2 ~ 4倍。通过实施这项技术，根据初步成本分析，预计的生物基燃料成本将与目前的化石燃料价格一致。该工艺的开发和商业化将在将现有的上游生物质气化技术与下游合成气与燃料/化学转化技术联系起来方面发挥关键作用，并将以最小的温室气体净排放促进国内能源供应。