NWaste2H2- H2 Production by Reforming Bio-methane with Nitrogen Rich Waste Streams

NWaste2H2项目旨在证明，在减少AD工厂和污水处理厂(WWTP)厌氧消化产生的沼气的能源需求和相关温室气体(CO2、N2O)排放的同时，通过重整可再生沼气来生产清洁能源载体氢，在英国是经济有效的。该项目汇集了一个为期两年的AD专家研究团队，他们来自利兹三所工程学院的废物(Camargo-Valero)、制氢(Dupont)和能源系统(Cockerill)，以及WWTP、AD研究、H2生产行业、英国市县委员会的工业和外部合作者，以及印度的学术伙伴中国、泰国和马来西亚是该项目科学咨询委员会的成员。联合努力将提供详细的工艺模型、考虑工艺下游产生的氢气的不同用途的全英国技术部署模型、从沼气和厌氧消化和污水处理厂的厌氧消化产生的富氮废液中综合生产氢气的经济评估和生命周期评价。该项目的资金将用于支付聘用一名博士后助理18个月的费用，以及一名由利兹大学生物能源博士培训中心资助的博士生的实验室费用，以及在世界生物能源和氢气会议上展示这项工作的传播和差旅费用。拟议技术背后的前提是利用将富含氮的有机共进料转化为氢气和氮气的能力，并将二氧化碳作为联产产品，从而使AD/废水处理厂的反硝化阶段的大量废物分流。水蒸气重整和自热重整这两种催化重整工艺都是潜在的制氢途径。目前，WWT的沼液反硝化是一项非常巨大的资本和能源负担，这会导致大量的一氧化二氮(N2O)气体排放，而在100年的时间里，N2O的全球变暖潜力大约是二氧化碳的300倍。NWaste2H2工艺不仅必须表现出高转化率，还必须表现出高转化率，不仅要转化为氢气，还必须转化为氮气，以便显著转移反硝化步骤中的富N废流。

The NWaste2H2 project aims to demonstrate that reducing the energy requirements and the associated greenhouse gas (CO2, N2O) emissions of biogas production at anaerobic digestion at AD plants and wastewater treatment plants (WWTP) whilst producing the clean energy vector hydrogen from reforming of the renewable biogas can be effected economically in the UK.This project brings together for 2 years a team of expert researchers in AD from wastes (Camargo-Valero), H2 production (Dupont) and energy systems (Cockerill) across three Engineering schools at Leeds, as well as industrial and external collaborators in the WWTP, AD research, H2 production industry, UK City and County Councils, with academic partners in India, China, Thailand and Malaysia who are members of the Scientific Advisory Board for the project. The combined efforts will deliver detailed process model, UK-wide technology deployment model considering the different uses of the H2 produced downstream of the process, economic evaluation and LCA of integrated H2 production from biogas and Nitrogen-rich waste streams from anaerobic digestion at Anaerobic Digestion and Wastewater Treatment plants. Funding for the project will provide for the costs of employment of a postdoctoral assistant for 18 months, as well as the laboratory expenses for a PhD student funded through the Centre for Doctoral Training on Bioenergy at The University of Leeds, and the dissemination and travel costs associated with presenting the work at world conferences on bioenergy and hydrogen.The premise behind the proposed technology is to exploit the ability of reforming nitrogen rich organic co-feeds to hydrogen and nitrogen gas, with carbon dioxide as co-product, which allows diverting a large waste stream from the denitrification stage at AD/wastewater treatment plants. Both catalytic processes of steam reforming and autothermal reforming will be investigated as potential H2 production routes. Denitrification of digestate liquor at WWT currently represents a very significant capital and energy burden which results in significant nitrous oxide (N2O) gas emissions, when N2O has a global warming potential roughly 300 times that of CO2 over a 100 years horizon. The NWaste2H2 process will have to show high conversions not just to hydrogen gas but also to nitrogen gas in order to significantly divert N-rich waste streams from the denitrification step.