Hydrothermal liquefaction technology for co-processing of wastewater sludge and other solid wastes for bioenergy production

协同处理废水污泥和其他固体废物用于生物能源生产的水热液化技术

• 批准号: 514310-2017
• 负责人: Xu, CharlesChunbao
• 金额: $ 9.09万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618292
• 关键词: Hydrothermal; liquefaction; technology; co; processing

A promising hydrothermal liquefaction (HTL) technology (PCT patent pending, file # 349-264-P) has been developed, partnering mainly with Trojan Technologies, and a few other industrial partners. The technology realizes co-processing of high-water-content wastewater sludge and other solid wastes such as municipal solid waste (MSW) and forestry/agricultural residues for co-production of bio oils and biogas. In our previous lab-scale tests in both a 100 mL batch reactor and a lab-scale continuous-flow HTL reactor (0.6 kg/h), the operating conditions including reaction temperature, reaction time and solids concentration were optimized based on the response surface methodology for the maximum bio-crude oil production. The two by-products from this process (bio-char and water-soluble products (WSP)) can be used to produce energy as well.Bio-methane Potential (BMP) test on the obtained WSP demonstrated excellent fermentability for biogas production by anaerobic digestion (AD). In this proposed I2I Phase I (reduction-to-practice) project, we aim to advance this HTL-AD process by scaling up the process for treating mixed wastes at 6 kg/h treatment capacity(10 fold scale up). The operating conditions will be optimized for the 6 kg/h scale HTL reactor system for the maximum bio-oil production. Mixtures of waste activated sludge and various types of solid wastes such as wood sawdust, cornstalk, and MSW will be investigated in the 6 kg/h scale HTL reactor system. In addition, a 5 L batch bioreactor will be constructed for AD tests of the water-soluble products for biogas production in addition to the BMP test. Finally, a techno-economic analysis for a full-scale plant (16 t/h sludge treatment capacity) will be performed, and compared with a conventional process (WAS anaerobic digestion digested sludge dewatering - landfill or incineration) as a benchmark. The research results from this I2I Phase-I project can be used for the decision making and design of full-scale HTL plants.

一项有前途的水热液化 (HTL) 技术（PCT 专利正在申请中，文件号 349-264-P）已经开发出来，主要与 Trojan Technologies 和其他一些工业合作伙伴合作。该技术实现了高含水废水污泥与城市固体废物（MSW）、林业/农业剩余物等其他固体废物的协同处理，联产生物油和沼气。在我们之前在 100 mL 间歇式反应器和实验室规模连续流 HTL 反应器（0.6 kg/h）中进行的实验室规模测试中，根据响应面优化了反应温度、反应时间和固体浓度等操作条件最大生物原油产量的方法。该过程的两种副产品（生物炭和水溶性产品（WSP））也可用于生产能源。对所得 WSP 的生物甲烷潜力（BMP）测试表明，厌氧生产沼气具有优异的发酵能力消化（AD）。在这个拟议的 I2I 第一阶段（缩减到实践）项目中，我们的目标是通过扩大混合废物处理工艺的规模，使其处理能力达到 6 千克/小时（扩大 10 倍），从而推进 HTL-AD 工艺。运行条件将针对 6 kg/h 规模的 HTL 反应器系统进行优化，以实现最大程度的生物油产量。废弃活性污泥和各种固体废物（如木锯末、玉米杆和城市固体废物）的混合物将在 6 千克/小时规模的 HTL 反应器系统中进行研究。此外，除了BMP测试之外，还将建造一个5L间歇式生物反应器，用于沼气生产用水溶性产品的AD测试。最后，将对全规模工厂（16吨/小时污泥处理能力）进行技术经济分析，并与传统工艺（WAS厌氧消化消化污泥脱水-填埋或焚烧）作为基准进行比较。 I2I一期项目的研究成果可用于全规模HTL工厂的决策和设计。