Omer, Abdulrahman (2026) Internship Report Evaluation & Optimization of the Brine Filtration at Nobian MEB. Master's Internship Report, Chemical Engineering.
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Abstract
The Nobian MEB chlor alakli plant is facing increasing economic and operational pressure due to rising energy costs and aging equipment. Reliable brine purification is critical to protect the ion exchange membranes in the electrolyser and operate it as efficiently as possible. The existing precoat brine filtration system is approaching its end of service life and presents challenges related to operational complexity, waste generation, maintenance costs, and performance variability. This study evaluates the current brine filtration system and investigates alternative filtration strategies to ensure consistent iron removal while reducing operational risks and expenditure. By examining the iron levels in the salt received it was determined that to be able to bypass the filter the salt received can’t have an iron content of higher than 0.1mg Fe/kg salt. Also to keep using the filter costs the plant almost 100K€/year and a capital investment of 780K€. A membrane filtration technology that uses filters made from pPTFE was assessed as a potential replacement technology. The system has demonstrated stable filtration performance, effective iron removal, elimination of α-cellulose usage, and reduce waste generation, simpler operation through automated backwash and chemical cleaning. Although the membrane option requires high upfront capital, it promises to deliver lower operating costs, so that the extra investment can be retrieved in OPEX savings in about 3-8 years.
| Item Type: | Thesis (Master's Internship Report) |
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| Supervisor name: | Kyriakou, V. and Morales Hernandez, D.M. |
| Degree programme: | Chemical Engineering |
| Thesis type: | Master's Internship Report |
| Language: | English |
| Date Deposited: | 03 Mar 2026 11:55 |
| Last Modified: | 03 Mar 2026 11:55 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/37247 |
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