MICROBIAL METHANE PRODUCTION USING INTERMEDEIATES PRODUCED FROM THE PHOTOCATALYTIC REFORMING OF LIGNINCELLULOSICS

使用木质纤维素光催化重整产生的中间体生产微生物甲烷

• 批准号: RGPIN-2014-03758
• 负责人: Lalman, Jerald
• 金额: $ 1.82万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=656427
• 关键词: MICROBIAL; METHANE; PRODUCTION; USING; INTERMEDEIATES

Low value biomass such as corn stover and wood chips, are useful feedstocks for producing hydrogen, methane and ethanol; however, pretreatment is required to liberate the celluloses and hemi-celluloses fractions. The remaining lignin, a low value fraction, is not biodegradable. The objective of the proposed work is to develop a route for converting lignin into methane, a value-added product. Converting lignin into biodegradable chemicals can be accomplished using photocatalysts such as titanium dioxide (TiO2) as well as TiO2 modified with cerium dioxide (CeO2) or TiO2 modified with CeO2 plus graphene, a crystalline form of carbon. After photocatalysis, a feedstock containing short chain carbon compounds (biodegradable chemicals) will be converted into methane by dark fermentation using mixed anaerobic microorganisms.

玉米秸秆和木片等低价值生物质是生产氢气、甲烷和乙醇的有用原料；然而，需要进行预处理以释放纤维素和半纤维素部分。 剩余的木质素是低价值部分，不可生物降解。 拟议工作的目标是开发一种将木质素转化为甲烷（一种增值产品）的路线。将木质素转化为可生物降解的化学品可以使用光催化剂来完成，例如二氧化钛 (TiO2) 以及用二氧化铈 (CeO2) 改性的 TiO2 或用 CeO2 加石墨烯（一种碳的结晶形式）改性的 TiO2。经过光催化后，含有短链碳化合物（可生物降解化学品）的原料将通过混合厌氧微生物的暗发酵转化为甲烷。