Comparative Assessment, Parametric Sensitivity, Economics, and Modeling of Novel 1,5-diamino-2-methylpentane Based Amine Solvent Blend for CO2 Capture From Large Industrial Sources

Simple item page
dc.contributor.advisorTontiwachwuthikul, Paitoon
dc.contributor.authorNwaoha, Chikezie Ndubuisi
dc.contributor.committeememberIdem, Raphael
dc.contributor.committeememberIbrahim, Hussameldin
dc.contributor.committeememberTorabi, Farshid
dc.contributor.committeememberRaina-Fulton, Renata
dc.contributor.externalexaminerMahinpey, Nader
dc.date.accessioned2019-06-21T19:00:58Z
dc.date.available2019-06-21T19:00:58Z
dc.date.issued2018-11
dc.descriptionA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Process Systems Engineering, University of Regina. xxiv, 310 p.en_US
dc.description.abstractThis research investigates the development of novel 1,5-diamino-2-methylpentane (DA2MP) based amine solvent blend for CO2 capture from large industrial sources. The lab-scale absorber and desorber pilot plant (2 inch by 42 inch each) were used to investigate the comparative CO2 capture analysis of the novel 2 kmol/m3 AMP-(1 to 3) kmol/m3 DA2MP blend to 5 kmol/m3 MEA and 2 kmol/m3 AMP-1 kmol/m3 PZ blend for the power plants (8 vol.% CO2 and 15.1 vol.% CO2), and lime kiln (30 vol.% CO2) industries. For the water-gas shift process plant (50 vol.% CO2) the CO2 capture performance of novel 3 kmol/m3 MDEA-(0.5 to 1.5) kmol/m3 DA2MP blend was compared to the benchmark 3 kmol/m3 MDEA-0.5 kmol/m3 PZ. The main key performance indicators (KPIs) are mass transfer coefficients, regeneration energy, CO2 absorption efficiency, CO2 absorption rate, and viscosity and density of the CO2 loaded amine solutions. A nonlinear correlation was developed and compared to the artificial neural network (ANN) for accurate prediction of viscosity and density of AMP-DA2MP and MDEA-DA2MP blends. The effect of the carbon tax, CO2 sales price and a newly developed carbon tax model/correlation on the CO2 capture cost was studied. Results from the KPIs revealed that the 2 kmol/m3 AMP-1.5 kmol/m3 DA2MP is the optimal amine concentration and has superior CO2 capture performance compared to MEA and AMP-PZ blend while 3 kmol/m3 MDEA-1 kmol/m3 DA2MP was optimal and performed better than the MDEA-PZ blend. Parametric sensitivity analysis of 2 kmol/m3 AMP-1.5 kmol/m3 DA2MP showed that the amine flow rate and concentration, and reboiler temperature of integral in optimizing the performance and reducing carbon capture cost. The developed nonlinear correlation accurately predicted the density and viscosity of the amine blends (R2 up to 0.9309), however, the ANN model has a superior predictive accuracy (R2 up to 0.9999). The effect of the CO2 sales price was observed to reduce the CO2 capture cost iii compared to the carbon tax. Also, the proposed carbon tax model reduced the CO2 capture cost compared to the carbon tax from the government. Overall, the novel AMP-DA2MP and MDEA-DA2MP blends are capable of costeffective and energy efficient CO2 capture.en_US
dc.description.authorstatusStudenten
dc.description.peerreviewyesen
dc.identifier.tcnumberTC-SRU-8836
dc.identifier.thesisurlhttps://ourspace.uregina.ca/bitstream/handle/10294/8836/Nwaoha_Chikezie_PhD_PSEN_Spring2019.pdf
dc.identifier.urihttps://hdl.handle.net/10294/8836
dc.language.isoenen_US
dc.publisherFaculty of Graduate Studies and Research, University of Reginaen_US
dc.titleComparative Assessment, Parametric Sensitivity, Economics, and Modeling of Novel 1,5-diamino-2-methylpentane Based Amine Solvent Blend for CO2 Capture From Large Industrial Sourcesen_US
dc.typeThesisen
thesis.degree.departmentFaculty of Engineering and Applied Scienceen_US
thesis.degree.disciplineEngineering - Process Systemsen_US
thesis.degree.grantorUniversity of Reginaen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophy (PhD)en_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Nwaoha_Chikezie_PhD_PSEN_Spring2019.pdf
Size:
2.64 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.22 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Doctoral Theses and Dissertations