Reactive separation

反应分离

• 批准号: RGPIN-2014-05940
• 负责人: Chuang, Karl
• 金额: $ 2.11万
• 依托单位: University of Alberta
• 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=647706
• 关键词: Reactive; separation

The main objective of the proposed research is to develop new processes for the chemical and petroleum industries by combining reaction with separation in a catalytic distillation column. The processes under consideration require lower capital investment and are more energy efficient, thus resulting in lower greenhouse and pollutant emissions. Continuous removal of products by distillation eliminates the constraints imposed by the equilibrium of the reaction. Overall energy consumption is also reduced due to the fact that heat of reaction can supply energy that is required for distillation. The two petro-chemical processes to be studied are: (1) hydration of olefins; and (2) oxidative etherification of alcohol. **For process (1), two specific processes will be studied: (a) production of isopropanol by hydration of propylene and (b) drying of ethanol by introducing isobutylene to react with water which is present in the ethanol feed stocks from fermentation of biomaterials. **For process (2), the study will focus on the oxidative etherification in a catalytic distillation column by reacting methanol with propylene oxide to produce propylene glycol methyl ether. The ether is a low toxicity, environmentally friendly high-performance industrial solvent used in paints, coatings, cleaners etc. The oxidative etherification is a highly exothermic reaction. The energy saving by use of catalytic distillation to remove heat of reaction is in excess of 30% as compared with the conventional process design. My research group has recently patented a catalytic distillation process for the production of propylene oxide, which will be used as the reagent for the etherification. **The applicant proposes to conduct fundamental study of mass transfer and catalysis in a catalytic distillation column, catalyst preparation and characterization, and kinetics and mechanism for each reaction. The catalytic distillation column already exists in my lab and is available for future use. Only minor equipment modifications are needed for the proposed studies. Economic assessment based on the kinetic data, ASPEN Plus simulation results and our patented column internal design can then be carried out for those processes showing promising results. Once patent protection is obtained, funding from industry will be sought to support pilot plant studies.

该研究的主要目的是通过在催化蒸馏塔中将反应与分离相结合来开发用于化学和石油工业的新工艺。所考虑的工艺需要较低的资本投资，而且更节能，从而减少温室气体和污染物的排放。通过蒸馏连续除去产物消除了反应平衡所施加的限制。由于反应热可以提供蒸馏所需的能量，因此也降低了总能耗。要研究的两个石油化工过程是：（1）烯烃水合;（2）醇的氧化醚化。** 对于方法（1），将研究两种具体方法：（a）通过丙烯的水合生产异丙醇和（B）通过引入异丁烯与来自生物材料发酵的乙醇原料中存在的水反应来干燥乙醇。** 对于工艺（2），研究将集中于在催化蒸馏塔中通过甲醇与环氧丙烷反应生成丙二醇甲醚的氧化醚化。乙醚是一种低毒、环保的高性能工业溶剂，用于油漆、涂料、清洁剂等。氧化醚化反应是一个高度放热的反应。采用催化蒸馏除去反应热，比常规工艺设计节能30%以上。 我的研究小组最近申请了一项催化蒸馏法生产环氧丙烷的专利，环氧丙烷将用作醚化反应的试剂。** 申请人建议对催化蒸馏塔中的传质和催化、催化剂制备和表征以及每个反应的动力学和机理进行基础研究。催化蒸馏塔已经存在于我的实验室，并可供将来使用。拟议研究仅需对设备进行微小修改。基于动力学数据、白杨Plus模拟结果和我们的专利塔内部设计，可以对那些显示出良好结果的工艺进行经济评估。一旦获得专利保护，将寻求工业界的资助，以支持试点工厂的研究。