Design and Control of a tert-Butyl Alcohol Hydration Process via Reactive Extraction Configuration

• Main Authors: Bing-You Zou, 鄒秉佑
• Other Authors: Hao-Yeh Lee
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/47871144712697540676

碩士 === 國立臺灣科技大學 === 化學工程系 === 104 === Crude oil is a non-renewable resource, The demand of crude oil continuously increases, as the global economic development. For the purpose of sustainable development and minimize production costs of the chemical industry, different types of chemical processes are developed. This study attempts to combine the reactor and the extraction process to reduce energy consumption and total annual cost. In the research, the reactive extraction in hydration of tert-butyl alcohol is demonstrated and compared with reactive distillation. The feed may contain impurity, like n-butene, so reactive extraction with n-butene is also demonstrated. The reactive extraction can achieve high conversion without energy. In constrain of liquid-liquid equilibrium, the higher cost of the separation section is required. The steady state simulation result shows the reaction extraction can save 26.0 % energy consumption and 16.1 % total annual cost, respectively. In process dynamics, the reactive extraction with n-butene is used to demonstrate. Since the reactive extraction column contains chemical reaction and liquid-liquid separation. Three inventory control loops (Inventory A~C) are studied to maintain stoicmetric balance, liquid-liquid equilibrium and both situations. In the quality control loop, using two temperature control loop in column C1 is better than one temperature control loop. The dynamic result shows that the best control structure is two temperature control loop in column C1 with inventory C.