期刊
KOREAN JOURNAL OF CHEMICAL ENGINEERING
卷 39, 期 11, 页码 2925-2934出版社
KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-022-1235-8
关键词
Dimethyl Ether; Detailed Kinetic Rates; Separation Trains; Recycling; Techno-economic Analysis; CO2 Reduction
资金
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT of the Republic of Korea [2021M3I3A1084300]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20212010100040]
- Korea Institute of Energy Technology Evaluation & Planning (KETEP) [20212010100040] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2021M3I3A1084300] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Integrated process models were developed to produce dimethyl ether (DME) from byproduct gas of the steelmaking process, considering different separation trains and recycling strategies. The absorber with hydrogen recycling was identified as the most feasible process for economically producing DME with high CO2 reduction.
Integrated process models were developed to produce dimethyl ether (DME) from the byproduct gas of the steelmaking process. Two different separation trains (the use of flash drums to separate light gases followed by two columns to separate CO2 and DME vs. the application of an absorber to separate light gas and CO2 under mild temperatures), and two different recycling strategies (recycling with and without further separation of hydrogen by a membrane) were considered. Detailed kinetic reactions for methanol (MeOH) synthesis from syngas and the dehydration of MeOH to DME were used in the reactor model, which helped predict the compositions of the reactor effluent under various conditions and determine the operating conditions of the separation trains. Both separation trains with recycled stream increased the DME production rate and overall CO2 conversion, while the sizes of the reactor and separators, and the utility costs of refrigeration, absorbent recovery, recycled stream compression, etc. were significantly increased. The tradeoffs between different cases were quantitatively analyzed by techno-economic and sensitivity analyses. The results showed that the use of the absorber with the recycling of hydrogen is the most feasible process for the economic production of DME with high CO2 reduction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据