| Summary: | 碩士 === 長庚大學 === 化工與材料工程學系 === 104 === Lai (2013) compared kind of various synthesis processes of MTBE, investigated single reactive distillation column (RD) and single RD with pre-reactor, and calculated each process total annual cost (TAC) of various synthetic process. Chen (2014) discussed various synthesis processes and without side reaction, and the result of TAC, various synthesis processes with side reaction is more than double. Hung (2015) studied optimal design and analyzes of high purity isobutene process via decomposition of MTBE synthesized from isobutene and Methanol. Since the general practice of the factory manufacturing process, side reactions will occur inevitably, this paper discuses and analysis with MTBE synthesis and decomposition with side reactions optimum process, in order to live closer to the factory.
Various synthesis processes of MTBE in this study is based on Chen(2014)’s method, and that is single RD process consider whether the side reactions in liquid phase. The MTBE decomposition process is based on Hung(2015); that is, use the RD and single with pre-react, and it has two type of phase, liquid phase and gas phase; with side reaction, we have eight process. The specifications are set below: as 98mol% IB purity and 98mol% MeOH purity with high isobutene conversion around 99%.
According to the result of the simulation of these eight processes, the total annual cost of single RD with pre-reactor is the lowest. In various synthesis processes of MTBE with side reaction, energy consumption is twice as much as the one without side reaction; hence, the cost will increase a lot. In MTBE decomposition process with side reaction, the cost is less 1.93%~6.98% than the one without side reaction.
|
|---|
