dc.contributor.author |
Udugama, IA |
|
dc.contributor.author |
Zander, Cornina |
|
dc.contributor.author |
Mansouri, SS |
|
dc.contributor.author |
Kirkpatrick, RD |
|
dc.contributor.author |
Yu, W |
|
dc.contributor.author |
Young, BR |
|
dc.date.accessioned |
2021-02-08T22:01:12Z |
|
dc.date.available |
2021-02-08T22:01:12Z |
|
dc.date.issued |
2017 |
|
dc.identifier.citation |
Computer Aided Chemical Engineering 40:1597-1602 2017 |
|
dc.identifier.issn |
1570-7946 |
|
dc.identifier.uri |
https://hdl.handle.net/2292/54379 |
|
dc.description.abstract |
Industrial methanol production plants have extensive heat integration to achieve energy
efficient operations where steam generated from these heat integration operations are
used to provide reboiler duty for methanol distillation columns that purify crude
methanol produced into industrial AA grade methanol at a relatively high rate of
product recovery. As such, fluctuation in steam supply due to non-routine process
changes can lead to result in off specification distillation operations which results in
significant economic losses. This work has investigated and identified the causes and
consequences of these steam flow disturbances and developed two backup control
structures to operate the distillation columns within specification during steam flow
disturbances. One of the new control structures is based on model predictive control
(MPC), while the other is a PID-based control structure with a novel supervisory layer
to control the column during these non-routine process upsets. These control schemes
were tested against realistic reboiler duty disturbances that can occur in an industrial
process. The tests revealed that both the MPC and supervisory systems control
structures are able to regulate the process, even during sudden drops in reboiler duty.
However, the cost of implementation and the relative simplicity will likely favour the
implementation of the supervisory control structure in an industrial environment. |
|
dc.publisher |
Elsevier |
|
dc.relation.ispartofseries |
Computer Aided Chemical Engineering |
|
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
|
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
|
dc.subject |
0904 Chemical Engineering |
|
dc.subject |
0907 Environmental Engineering |
|
dc.subject |
0914 Resources Engineering and Extractive Metallurgy |
|
dc.title |
A novel back-up control structure to manage non-routine steam upsets in industrial methanol distillation columns |
|
dc.type |
Journal Article |
|
dc.identifier.doi |
10.1016/B978-0-444-63965-3.50268-3 |
|
pubs.begin-page |
1597 |
|
pubs.volume |
40 |
|
dc.date.updated |
2021-01-17T01:58:03Z |
|
dc.rights.holder |
Copyright: 2017 Elsevier B.V. |
en |
pubs.author-url |
https://www.sciencedirect.com/science/article/pii/B9780444639653502683 |
|
pubs.end-page |
1602 |
|
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
|
pubs.elements-id |
835552 |
|