Hydrogen enriched gas production from biomass with inprocess carbon dioxide capture and catalyst regeneration using fluidized bed technology

“脱碳”能源供应是解决全球二氧化碳(CO2)排放问题的一种技术解决方案，在这方面，“氢能经济”的想法具有重大价值。迈向氢气(H2)经济的主要挑战是以经济、可持续和环保的方式生产足够的氢气，以满足未来的需求。目前，总氢气产量的96%来自化石燃料。生物质年产量约为世界能源消费总量的8倍，是生产氢气的巨大可再生资源(碳中性)。如果二氧化碳可以在这个过程中被捕获，来自生物质的能量就可以被认为是碳负的。这项拟议的研究旨在开发一种新的工艺，用于从农林废弃物/生物质中连续生产氢气，并可就地捕获二氧化碳并重新生成催化剂。该工艺的新奇之处在于，在没有任何外部进料的情况下，以二氧化碳为副产品生成相对纯的氢气。该工艺的另一个独特之处是在气化炉中结垢的催化剂的内部再生。因此，该技术将服务于催化剂再生和产生无氮(N2)H2和CO2的双重目的。这项研究的直接和间接影响将是广泛的。流态化是一种可以接受多种燃料的平台技术。此外，这项研究还将减少N2O的排放，因此，将有助于减缓全球气候变化。廉价石油和天然气供应的减少可能会使基于生物质量的发电机成为一个可行的选择，而这项研究将有助于无故障运行并增加更多价值。总体而言，本研究的目标是开发创新的环境友好型技术，将生物质用作燃料和化学品。

"Decarbonizing" energy supply is a technological solution to address global carbon dioxide (CO2) emissions and in this context the idea of "hydrogen energy economy" has significant merit. The major challenge in moving towards a hydrogen (H2) economy is to produce sufficient H2 economically, sustainably, and environment-friendly to meet future demand. At present, 96% of the total H2 production is sourced from fossil fuels. Biomass with a total annual production of about 8 times the total world energy consumption, represents an immense and renewable source (carbon neutral) for the production of H2. If CO2 can be captured during the process, energy from biomass can be considered as carbon negative. The proposed research aims at developing a novel process for continuous production of H2 from agricultural/forestry wastes/biomass with in-situ CO2 capture and catalyst re-generation. Novelty of the process lies in the generation of relatively pure H2 with CO2 as a by-product without any external feed. Another unique feature of the process is internal regeneration of the catalyst, fouled in the gasifier. Thus, the technology will serve the twin purpose of regenerating the catalyst, and generation of nitrogen (N2) free H2 and CO2. The direct and indirect impacts of the research will be widespread. Fluidization is a platform technology that can accept various fuels. Furthermore, this research will also lower N2O emission and hence, will help to decelerate global climate change. Declining supply of cheap oil and gas may make bio-mass based power generator a viable option, while this research would help trouble free operation and add more value. Overall the target of the present research is to develop innovative environmentally friendly technologies for the utilization of biomass for fuels and chemicals.