MOST- Novel microwave fluidized bed reactor for catalytic pyrolysis of biomass residues and biochar applications

MOST-用于生物质残渣催化热解和生物炭应用的新型微波流化床反应器

• 批准号: 493769-2016
• 负责人: Bi, Xiaotao
• 金额: $ 17.01万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=602853
• 关键词: MOST; Novel; microwave; fluidized; bed

There are estimated 30 million tonnes of forest residues available each year at British Columbia, which can be converted to high-value liquid biofuels or biochemicals to offset the high cost associated with collection and pretreatment. Pyrolysis is a thermal cracking process of biomass in the absence of oxygen, which converts biomass to bio-oil and biochar. Bio-oil can be further upgraded to liquid fuels. Pyrolysis has been identified as a promising pathway for converting biomass residues to biofuels (diesel and jet fuel) and biochemicals (e.g. carbon, alcohols). The low quality of bio-oil and biochar, however, imposes challenges in upgrading and application. Specifically, the high oxygen content in bio-oil consumes large amount hydrogen in upgrading operation, which accounts for more than 66% of total greenhouse gas emissions over the whole liquid biofuel supply chain associated with hydrogen production from fossil fuels. The poor quality of biochar also surrenders its use as fertilizer for soil applications and as a reducing agent in metallurgical processes.

据估计，不列颠哥伦比亚省每年有3000万吨森林残留物，这些残留物可以转化为高价值的液体生物燃料或生物化学品，以抵消与收集和预处理有关的高昂成本。热解是生物质在无氧条件下的热裂解过程，其将生物质转化为生物油和生物炭。生物油可以进一步升级为液体燃料。热解已被确定为将生物质残渣转化为生物燃料（柴油和喷气燃料）和生物化学品（例如碳、醇）的有前途的途径。然而，生物油和生物炭的低质量给升级和应用带来了挑战。具体而言，生物油中的高氧含量在升级操作中消耗大量氢气，这占与化石燃料制氢相关的整个液体生物燃料供应链中温室气体排放总量的66%以上。生物炭的质量差，也使其不能用作土壤肥料和冶金过程中的还原剂。