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http://hdl.handle.net/11375/21019
Title: | Space-Constrained Purification of Dimethyl Ether through Process Intensification using Semicontinuous Dividing Wall Columns |
Authors: | Ballinger, Sarah E Adams, Thomas A II |
Department: | Chemical Engineering |
Keywords: | dimethyl ether;process intensification;dividing wall column;semicontinuous distillation;plant-on-a-truck;mobile plant;computer simulation;Aspen Plus Dynamics |
Publication Date: | Jan-2017 |
Publisher: | Elsevier |
Citation: | Ballinger, S., Adams, T. A. II. Space-Constrained Purification of Dimethyl Ether through Process Intensification using Semicontinuous Dividing Wall Columns. Computers & Chemical Engineering, in press (2017) |
Abstract: | In this work, a distillation system is designed to purify dimethyl ether (DME) from its reaction by-products in the conversion of flare gas into a useful energy product. The distillation equipment has a size constraint for easy transportation, making process intensification the best strategy to efficiently separate the mixture. The process intensification distillation techniques explored include the dividing wall column (DWC) and a novel semicontinuous dividing wall column (S-DWC). The DWC and the S-DWC both purify DME to fuel grade purity along with producing high purity waste streams. An economic comparison is made between the two systems. The DWC is a cheaper method of producing DME however the purity of methanol, a reaction intermediate, is not as high as the S-DWC. Overall, this research shows that it is possible to purify DME and its reaction by-products in a 40-foot distillation column at a cost that is competitive with Diesel. |
URI: | http://hdl.handle.net/11375/21019 |
Identifier: | 10.1016/j.compchemeng.2017.01.037 |
Appears in Collections: | Chemical Engineering Publications |
Files in This Item:
File | Description | Size | Format | |
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Ballinger Adams 2017 Preprint.pdf | 1.06 MB | Adobe PDF | View/Open |
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