Characterization and systems integration of microreactors
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, February 2002.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1721.1/8272 |
| _version_ | 1811079872504659968 |
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| author | Quiram, David J |
| author2 | Klavs F. Jensen and Martin A. Schmidt. |
| author_facet | Klavs F. Jensen and Martin A. Schmidt. Quiram, David J |
| author_sort | Quiram, David J |
| collection | MIT |
| description | Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, February 2002. |
| first_indexed | 2024-09-23T11:21:34Z |
| format | Thesis |
| id | mit-1721.1/8272 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:21:34Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/82722019-04-11T14:16:12Z Characterization and systems integration of microreactors Quiram, David J Klavs F. Jensen and Martin A. Schmidt. Massachusetts Institute of Technology. Dept. of Chemical Engineering. Massachusetts Institute of Technology. Dept. of Chemical Engineering. Chemical Engineering. Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, February 2002. Includes bibliographical references. Microfabrication technology presents the opportunity to create highly instrumented, micro-scale chemical reactors that bring with them the potential for new analytical capabilities, point-of-use synthesis, and highly parallel screening methods. However, the use of integrated circuit-like reaction devices, such as the MIT thin-film microreactor, also gives rise to a spectrum of new engineering challenges with respect to reactor system integration and scale-up schemes. This work demonstrates the integration of multiple microreactors operating in parallel within a system that includes gas flow control components and the associated electronic circuitry. The system built is equivalent to a conventional laboratory reactor system but in 1/10th of the space. Fluidic and electronic interfaces, thermal management, and operational safety are all considerations in microreactor packaging. A standard microchip socket from Texas Instruments was selected as the first level packaging. The sockets have mechanical attributes that lend them to, with minor reworking, simultaneous fluidic and electronic connection. This selection makes PC board mounting of the reactor devices straightforward. Shut-off microvalves and proportional microvalves from Redwood Microsystems, with their control electronics, have also been mounted on PC boards to control the gas flow in the system. This allows the entire system: reactors, device electronics, and gas distribution manifold to be mounted on standard CompactPCI cards and housed in a commercially available chassis. A Kaparel CompactPCI chassis is used to house the microreactor system. Electrical connections between the boards are achieved through a standard backplane and custom-built rear I/O PC boards. The system is comprised of a temperature controller card that regulates temperature for auxiliary heaters in the system; a gas mixing board that mixes the feed gas for the microreactors; two microreactor boards that each contain two microreactors with their feed flow controllers; and two heater circuit boards that provide power to the microreactor heaters. A National Instruments embedded real time processor is used to provide closed-loop control and monitor system alarms. A host PC, running LabVIEW 6, is used as the human machine interface for operator interaction and historical data logging. by David J. Quiram. Ph.D. 2005-08-23T18:47:41Z 2005-08-23T18:47:41Z 2001 2002 Thesis http://hdl.handle.net/1721.1/8272 50406520 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 327 leaves 62641860 bytes 62641617 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Chemical Engineering. Quiram, David J Characterization and systems integration of microreactors |
| title | Characterization and systems integration of microreactors |
| title_full | Characterization and systems integration of microreactors |
| title_fullStr | Characterization and systems integration of microreactors |
| title_full_unstemmed | Characterization and systems integration of microreactors |
| title_short | Characterization and systems integration of microreactors |
| title_sort | characterization and systems integration of microreactors |
| topic | Chemical Engineering. |
| url | http://hdl.handle.net/1721.1/8272 |
| work_keys_str_mv | AT quiramdavidj characterizationandsystemsintegrationofmicroreactors |