Physico-chemical Characterization during the Preparation of Biomass as Feedstock for Bioenergy and Bioproducts

生物质作为生物能源和生物产品原料的制备过程中的物理化学表征

• 批准号: RGPIN-2017-05287
• 负责人: Tabil, Lope
• 金额: $ 2.84万
• 依托单位: University of Saskatchewan
• 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=666365
• 关键词: Physico; chemical; Characterization; during; Preparation

Lignocellulosic biomass has many challenges when used as feedstock for bioproducts and bioenergy production. If it were to be used for direct energy production, thermochemical and biochemical conversion, it must be in a form that is cost effective to transport and convert. Furthermore, if it were to be used as feedstock for biochemical conversion, the lignocellulosic matrix has to be broken down into cellulose, hemicelluloses and lignin. This research program will examine the physical and chemical (composition, water adsorption and polarity) properties of biomass from agricultural crop residues and municipal solid waste and their interaction to gain basic understanding of the fate that biomass particles undergo as they are processed and prepared for the production of biomaterials, bioenergy, biofuel and other bioproducts. Biomass particles may be subjected to different pretreatment options by use of microbial, microwave, radio frequency energy, pulsed electric field, steam explosion and torrefaction pretreatments. The pretreatment of biomass from crop residue is also very important for densification so as not to use binders and to have high quality densified products. The processed and pretreated biomass is subjected to densification (pelletization, extrusion and agglomeration) because densified forms are easy and efficient to transport to end users. ****** The program will be subdivided into two activities (where each activity is interdependent upon one another and may be conducted simultaneously), namely a) the pretreatment of biomass and b) the densification of biomass. After being subjected to pretreatment and densification, the composition of biomass and the distribution of components within the different parts of the biomass will be determined both using standard chemical methods and the use of Fourier transform infrared spectroscopy (FTIR) and the soft x-ray beamline at the Canadian Light Source. Rapid characterization of the components (quantity and distribution) of biomass will be one potential contribution of this research program. The physicochemical properties of the pretreated biomass for the compression and compaction processes during densification will also be determined to generate information required for the design and development of the equipment required for this operation. After the pretreatment and densification of biomass, the physicochemical characterization of the densified biomass will also be carried to determine the extent and ease of the breakdown of the lignocellulosic matrix into their basic components and its suitability and ease of biochemical or thermochemical conversion.

木质纤维素生物量用作生物产品和生物能源生产的原料时面临许多挑战。如果要用于直接产生能源生产，热化学和生化转化，则必须具有运输和转化的成本效益的形式。此外，如果将其用作生化转化的原料，则必须将木质纤维素基质分解为纤维素，半纤维素和木质素。该研究计划将研究农作物残留物和市政固体废物的生物量的物理和化学（组成，水吸附和极性）特性及其相互作用，以获得对生物量颗粒经过处理并准备生物材料，生物材料，生物耐生物材料，生物燃料和其他生物生物生物生物剂和其他生物质量的命运的基本了解。生物量颗粒可以通过使用微生物，微波，射频能量，脉冲电场，蒸汽爆炸和摩尔特式预处理来进行不同的预处理选项。从农作物残留物中对生物量进行预处理对于致密化也非常重要，以免使用粘合剂并具有高质量的致密产物。经过加工和预处理的生物质经过致密化（挤压，挤压和聚集），因为致密的形式易于运输到最终用户。 ******该程序将细分为两种活动（每种活动相互依存相互依存，并且可以同时进行），即a）生物量预处理和b）生物量致密。经过预处理和致密性后，将使用标准化学方法和使用傅立叶变换红外光谱（FTIR）和加拿大光源的软X射线光束线确定生物质的组成和生物量不同部分内的组件分布。生物量成分（数量和分布）的快速表征将是该研究计划的潜在贡献。还将确定在致密过程中为压缩和压实过程的预处理生物量的物理化学特性确定，以生成该操作所需的设备设计和开发所需的信息。在生物量的预处理和致密化之后，还将携带致密生物质的物理化学表征，以确定木质纤维素基质对其基本成分的范围和易于分解的程度和易于分解，以及其适合性和易生化或热化学化学或热化学转化的性。