Investigations in multiphase reactor systems for improved performance and design

研究多相反应器系统以改进性能和设计

• 批准号: 173301-2011
• 负责人: Prakash, Anand
• 金额: $ 1.53万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=509799
• 关键词: Investigations; multiphase; reactor; systems; improved

The applications of multiphase reactors are growing in a number of important areas such as production of clean and renewable fuels, environmental pollution abatement and production of new and improved drugs. The proposed program aims at identifying ways to improve performance and productivity of these reactor systems for selected industrial applications. Investigations will be conducted mostly in three- and four-phase reactors of different designs and configurations for promising applications in the areas of clean and renewable fuels and environmental remediation. Investigations in three-phase slurry and fluidized bed reactor will focus mainly on hydrodynamics, heat and mass transfer in the presence of internals. Internals of different types and configurations such as heat transfer surface, internal membranes and packings are required for a number of applications of these reactors. The presence of these internals can alter mixing pattern thus affecting reactor performance. However, judicious choice of internals design and their placement can help achieve desired performance such as low backmixing and higher radial dispersion. The applicant has identified potential applications for novel four-phase gas-liquid-solid-solid (g-l-s-s) reactor systems in the important and emerging areas of renewable fuels and environmental remediation. One promising application is in the area of biodiesel production using in situ transesterification of macerated oilseed avoiding pre-extraction of oil. This approach can reduce the overall cost of the operation and maximize product yield. Other application involves modifications of porous particles and surfaces to add or improve their desired catalytic or adsorption characteristic. Hydrodynamics behavior and heat and mass transfer characteristics of the four phase g-l-s-s reactor will be investigated in details. The development efforts will build on applicant's previous successes and experiences as well ongoing work in multiphase reactor systems. Fast response probes tested and developed in applicant's lab will be used to study dynamic behavior of these systems to gain further insights for improved performance and operation.

多相反应堆的应用正在在许多重要领域增长，例如生产清洁和可再生燃料，消除环境污染以及新的和改进的药物的生产。拟议的计划旨在确定改善这些反应堆系统为选定工业应用的绩效和生产力的方法。调查将主要在不同设计和配置的三相反应堆中进行，以在清洁和可再生燃料和环境补救领域进行有希望的应用。在存在内部的情况下，对三相浆液和流化的床反应堆进行的研究将主要集中在流体动力学，热力和传质。这些反应器的许多应用需要不同类型和配置的内部构造，例如传热表面，内部膜和包装。这些内部的存在可以改变混合模式，从而影响反应堆性能。但是，明智地选择内部设计及其放置可以帮助实现所需的性能，例如低反向混杂和更高的径向分散。申请人已经确定了新型四相气体 - 液体固 - 固 - 固 - 固 - 固氧（G-S-S）反应堆系统在可再生燃料和环境修复的重要和新兴领域中的潜在应用。一种有希望的应用是在生物柴油生产的领域，使用浸软的油酸的原位式酯化剂避免了油的萃取。 这种方法可以降低运营的整体成本并最大化产品产量。其他应用涉及多孔颗粒和表面的修改，以添加或改善其所需的催化或吸附特征。将详细研究四期G-L-S-S反应器的流体动力学行为以及热力和传质特征。开发工作将基于申请人以前的成功和经验以及在多相反应堆系统中正在进行的工作。在申请人实验室中测试和开发的快速响应探针将用于研究这些系统的动态行为，以获得进一步的见解，以改善性能和操作。