Production of biomethane, bio-syngas and light bio-olefins from agro-forestry biomass through biological and thermochemical routes

通过生物和热化学途径从农林生物质生产生物甲烷、生物合成气和轻质生物烯烃

• 批准号: 576655-2022
• 负责人: Dalai, AjayAK
• 金额: $ 24.44万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746722
• 关键词: Production; biomethane; bio; syngas; light

Currently, in North America, the demand for natural gas (methane) is expected to rise due to huge consumption in heating buildings, refrigeration, and cooling equipment and as a fuel in combined heat and power systems. However, there is a significant need for an alternate source of natural gas as fossil resources are depleting and are concerned with environmental pollution. Therefore, biomethane is regarded as a feasible alternative to natural gas due to its renewability. In this work, bio-methane and bio-syngas will be produced via thermochemical (gasification) and biological (anaerobic digestion) routes using agro-forestry biomass and food wastes. Thermochemical processes such as gasification use heat and chemical energy to decompose biomass into syngas, tar, and ash. On the contrary, the biochemical routes use microorganisms or enzymes to convert biomass into biomethane. A combination of biological and thermochemical technologies could provide an innovative approach for producing a wide range of biofuel products with industrial applications. Further, the integration of gasification and FT synthesis to anaerobic digestion is an effective biorefinery concept that can provide improved management of digestate solid waste and the production of different value-added products such as biochar, bio-syngas, and liquid bio-hydrocarbons. Therefore, using syngas generated from the gasification of a wide variety of agricultural and forestry biomass as a direct fuel for combustion or as a feedstock for FT catalysis to generate green liquid and gaseous fuels can bring many environmental and economical benefits to Canada's energy and chemical industries. Thus, the current proposal will investigate both biological and thermochemical routes involving several agro-forestry residues. The two production routes will be compared in terms of their economic viability and environmental impacts through the lifecycle and techno-economic analysis. The production route involving the integrated biological and thermochemical technologies will be scaled-up with a demonstration plant by Tidewater Renewables for continuous processing. This project's findings will benefit the Canadian energy sector by producing cost-effective biofuels.

目前，在北美，天然气(甲烷)的需求预计将上升，原因是供暖建筑、制冷和冷却设备以及联合供热和电力系统中作为燃料的巨大消耗。然而，由于化石资源正在枯竭，并与环境污染有关，因此对替代天然气来源的需求很大。因此，生物甲烷因其可再生性而被认为是一种可行的天然气替代品。在这项工作中，将利用农林生物质和食物垃圾，通过热化学(气化)和生物(厌氧消化)路线生产生物甲烷和生物合成气。气化等热化学过程利用热能和化学能将生物质分解成合成气、焦油和灰烬。相反，生化途径使用微生物或酶将生物质转化为生物甲烷。生物和热化学技术的结合可以为生产具有工业应用的各种生物燃料产品提供一种创新的方法。此外，将气化和FT合成与厌氧消化相结合是一种有效的生物精炼概念，可以改善对沼气固体废物的管理，并生产不同的附加值产品，如生物炭、生物合成气和液体生物烃。因此，利用各种农林生物质气化产生的合成气作为燃烧的直接燃料或FT催化生产绿色液体和气态燃料的原料，可以为加拿大的能源和化学工业带来许多环境和经济利益。因此，目前的提案将调查涉及几种农林残留物的生物和热化学路线。将通过生命周期和技术经济分析比较这两种生产路线的经济可行性和对环境的影响。Tidewater Renewables将扩大涉及生物和热化学综合技术的生产路线，并建立示范工厂进行连续加工。该项目的发现将通过生产具有成本效益的生物燃料而使加拿大能源部门受益。