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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Nur Tantiyani Ali Othman, Dr. | - |
| dc.contributor.author | Badiea Saeed Omer Babaqi (P78657) | - |
| dc.date.accessioned | 2023-10-11T02:26:44Z | - |
| dc.date.available | 2023-10-11T02:26:44Z | - |
| dc.date.issued | 2018-10-08 | - |
| dc.identifier.other | ukmvital:117895 | - |
| dc.identifier.uri | https://ptsldigital.ukm.my/jspui/handle/123456789/486936 | - |
| dc.description | Modelling and optimisation of the continuous catalytic regeneration reforming process (CCRRP) were carried out to maximise the yield of reformate product and energy saving in order to improve the process performance. Data from the existing process was extracted, and then a development of the mathematical and kinetic model that represented the full process was investigated. MATLAB® is used to achieve that task based on the particle swarm optimisation (PSO) algorithm. The new kinetic model of the reactions network to describe the CCRRP reactions was proposed. The new network of the various reactions contained 36 lumps and 55 reactions which led to more correctly predict the behaviour of the process. The main reactions occurring in the reforming process included dehydrogenation, dehydrocyclisation, isomerisation, hydrocracking and hydrodealkylation. The model results were validated by comparison with plant data, which average absolute deviation of the comparison between actual and predicted reached to 0.0004. This convergence provided the estimation of kinetic parameters of the reactions network that showed the best match of the proposed model with the plant data. The final evaluation of the model was within the acceptable limit and a fair agreement. Optimisation of the CCRRP was carried out to maximise the yield of reformate product and energy saving via optimal modifications in order to improve the process performance. The final analysis showed two enormous opportunities for enhancing productivity with the improvement of the reactions network and separation process of components, and for energy saving at the heat exchangers network. Improvements analysis of the existing process to achieve the optimum yield included modifications of inlet temperature, inlet pressure and molar ratio hydrogen to hydrocarbon according to enhancement in the process from 93.91% to 94.46%. The maximum energy savings of heat exchangers network indicated that reduction of utilities about 16.20%, which led to an addition to an incremental area to the existing heat exchangers according to the reduction in ΔTmin from 80.3 K to 65 K. The final evaluation of yield-energy optimisation of the modified process indicated an enhancement of productivity by 8700 ton/year and the energy saving around 16.20%, which led to a profit increment of approximately USD$ 6.03 million/year. The new design of the optimised process was developed for achieving the energy target to reach the optimal design. The final retrofit analysis of the optimised case showed a satisfied network with a reduction in the heat utility consumption to 505.12 GJ/h, which equates to about 5.53% hot utility savings in the new network. While a reduction in the cold utility consumption reached to 587.57 GJ/h, which equated to about 10.67% cold utility savings. The retrofitted network required the additional area to existing heat exchangers by 562.7 m2 for increasing heat recovery and achieving the energy target. The investment cost of the project required about USD$ 0.33019 million, which provided a payback period of 0.1 years according to energy saving of the retrofitted network that was about USD$ 3.372 million/year. While the payback period of this project for the total profit of the optimised CCRRP reached to 0.055 years. As the conclusion, optimisation of the CCRRP provided the best results due to linking the yield and energy saving together. This approach is a useful tool for productivity enhancement with an energy saving of operating facilities to solve problems related to a fall in production and energyintensive consumption.,Ph.D. | - |
| dc.language.iso | eng | - |
| dc.publisher | UKM, Bangi | - |
| dc.relation | Faculty of Engineering and Built Environment / Fakulti Kejuruteraan dan Alam Bina | - |
| dc.rights | UKM | - |
| dc.subject | Catalytic reforming | - |
| dc.subject | Petroleum -- Refining | - |
| dc.subject | Universiti Kebangsaan Malaysia -- Dissertations | - |
| dc.subject | Dissertations, Academic -- Malaysia | - |
| dc.title | Process modelling and optimisation for maximum yield of reformate and energy saving in the continuous catalytic regeneration reforming process | - |
| dc.type | Theses | - |
| dc.format.pages | 188 | - |
| dc.identifier.callno | TP690.45.B334 2018 3 tesis | - |
| dc.identifier.barcode | 004005(2019) | - |
| Appears in Collections: | Faculty of Engineering and Built Environment / Fakulti Kejuruteraan dan Alam Bina | |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| ukmvital_117895+SOURCE1+SOURCE1.0.PDF Restricted Access | 3.64 MB | Adobe PDF |  View/Open |
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