Production of useful chemicals, fuels and biopolymers from industrial lignins and other wood wastes available in Northern British Columbia

利用不列颠哥伦比亚省北部的工业木质素和其他木材废料生产有用的化学品、燃料和生物聚合物

• 批准号: 121414-2008
• 负责人: Thring, Ronald
• 金额: $ 1.68万
• 依托单位: University of Northern British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=569188
• 关键词: Production; useful; chemicals; fuels; biopolymers

The objective of the proposed research program is to continue developing suitable strategies for producing new high value-added products from lignins and other wood residues (or portions of each) available in British Columbia. These renewable resources are the most under-utilized yet dominant wood wastes from wood processing operations. Also, a recent glut in the world market of major commodity wood products is forcing Canada's forestry industry to be more cost competitive. Therefore, the need for developing new value-added products from these particular wood wastes is indeed pressing. Moreover, lignin's partial removal from black liquor during kraft pulping has two other very significant advantages:(1) it allows for increased pulp production in mills that are recovery boiler limited - many existing Canadian kraft mills already fall in this category; (2) it provides an option for pulping to a lower lignin content even at the same recovery boiler heat load, thereby generating substantial savings in bleaching chemicals as well as reducing effluent discharge loadings. In this research program, two approaches for developing high-value products from these wood wastes will be studied. One approach will investigate new catalytic upgrading routes with the objective of producing unprecedentedly high yields of useful fuels and chemicals. We will use two laboratory reactors (fluidized-bed and fixed-bed) separately or in tandem to study the performance of selected catalysts. For the promising route(s), the kinetics, mechanism(s), modeling, and optimum reaction conditions in terms of conversion, product yield and selectivity will be determined. The other strategy will study these waste materials (or portions of) for production of polyurethanes via solution casting, polymer blending, and other methods as appropriate. Mechanical, thermal properties and biodegradability of the new bio-plastics will be determined to develop the essential structure-property relationships. In each strategy, potential practical applications and economic benefits will be identified for the most promising products and processes.

拟议的研究计划的目的是继续制定合适的策略，以从不列颠哥伦比亚省提供的木质素和其他木材残留物（或每种木材的部分）生产新的高增值产品。这些可再生资源是木材加工操作中最不受欢迎但占主导地位的木质废物。此外，最近在主要商品木制产品的世界市场上的盛宴迫使加拿大的林业行业更具成本竞争力。因此，确实需要从这些特定的木材废物中开发新的增值产品的需求确实很紧迫。此外，木质素在牛皮纸纸浆期间从黑液中的部分去除具有另外两个非常重要的优势：（1）它允许在恢复锅炉有限的工厂中增加纸浆生产 - 许多现有的加拿大牛皮厂已经属于此类别； （2）即使在相同的恢复锅炉热负荷下，它也提供了将面包到较低的木质素含量的选项，从而为漂白化学物质和减少流出的排放载荷产生大量节省。在该研究计划中，将研究两种开发这些木材废物的高价值产品的方法。一种方法将研究新的催化升级途径，目的是生产前所未有的有用燃料和化学物质产量。我们将分别使用两个实验室反应器（流化床和固定床）或同时研究选定催化剂的性能。对于有前途的途径，将确定动力学，机制，建模和最佳反应条件在转化，产品产量和选择性方面。另一种策略将研究这些废料（或部分），以通过溶液铸造，聚合物混合和其他方法适当地生产聚氨酯。新生物塑料的机械性，热特性和生物降解性将确定开发基本的结构 - 特性关系。在每种策略中，将为最有前途的产品和流程确定潜在的实际应用和经济利益。