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researcher

Nejat Rahmanian

Senior Lecturer in Chemical Engineering

Faculty/Dept/School Department of Chemical Engineering
(Faculty of Engineering and Informatics)
Emailn.rahmanian@bradford.ac.uk
Telephone +441274 234552

Biography

Dr Nejat Rahmanian is a Senior Lecturer (associate professor) in Chemical and Petroleum Engineering and MSc Program Leader for Advanced  Chemical and Petroleum Engineering since July 2015.  He is a Chartered Engineer, a Chartered  Scientist and Fellow of Higher Education Academy. 
He received his doctoral degree from the University of Leeds in early 2010. He has also completed his MBA (Executive) with Distinction. He also holds MSc (1997) and BSc (1993)  all in Chemical Engineering.  

Nejat is currently an academic member of Senate representing the Faculty of Engineering and Informatics. He has over 23 years of experience working in both academia and industry. In industry, he worked for 8 years at Petropars Ltd (an international oil and gas contractor) and during this period he worked in collaboration with a number of international companies (e.g. Shell, PETRONAS, TOTAL and NIOC) towards the development of the South Pars Gas Field, the largest gas-condensate reservoir in the world. During this, he worked closely with International Engineering and Construction Companies in Malaysia, Japan, South Korea, and the UK for the development of the field. 
     
He is a committee member of the IChemE Particle Technology Special Interest  Group, and is a member of the UKCCS Group and a member of the Institute of Materials, Minerals and Mining (IOM3). Within the University he is a member of the Faculty Board,  the Faculty Post Graduate Research (PGR) Committee and the Faculty Partnership Committee.    

Nejat received the best publication award in Dec 2019 at the university.  He was awarded a title as Best Technical Contribution to the Field of Granulation from EFCE, European Federation of Chemical Engineers, in 2007. He also received an award entitled Young Researchers in Particle Technology from IChemE Particle Technology Subject Group in 2008 as the finalist. So far, he has received 15 travel bursaries and scholarships and six prestigious awards.

Research
He is an active researcher with interests in energy, Carbon Capture, and Storage (CCS), and particle technology.  In particle technology, his main focus is on granulation and particle characterization and in oil/gas processing his current focus is CO2 capture, transportation, and storage, process modelling, and simulation of hydrocarbon processes.

Nejat has held four patents, published one book, three chapter books and over 80 journal articles, and peer-reviewed conference proceedings.

Since Nov. 2005, Nejat has been involved in 10 research projects worth around £1.1m from UK Research Councils (EPSRC) and from the industry as investigators (PI or Co-I). On carbon capture, He secured a fund from the Ministry of Science, Technology and Innovation, Malaysia in 2011 (as PI) on Carbon Capture and three grants from HEFCE, the UK on granulation (as PI).

He has completed the supervision of 16 MSc and 30 MEng and final year research projects and supervised jointly or individually 6 PhD projects during his academic career in various places. He was visiting professor at the Institute of Chemical Technology, Mumbai in 2014/15.   He has ongoing research collaborations with industries and academic institutions in the UK, Canada, the Netherlands, India, Turkey, Iran, Oman, Saudi Arabia, and Malaysia. 

 Teaching

He teaches or has taught in UoB or else:
CPE5005-B (Reaction Engineering)
CPE6006-B (Petroleum Engineering)
CPE7013-D (Oil and Gas Management)
ENB6009-B (Process Safety)
ENG2092M Petroleum Production Engineering I
ENG3103M Petroleum Production Engineering II
ENG2095M Separation Process Engineering
ENG2093M Chemical Engineering Practice I
ENG3001M Chemical Engineering Practice II
ENG3101M/ENG2313L Chemical Reaction Engineering
ENG3099N Design Project
PH 4039D Computational Pharmaceutics
Aspen HYSYS workshop
Heat Transfer
Mass and Energy Balances
Unit Operations of Chemical Engineering I and II
Pharmaceutical Processes
Engineers in Society


Research

[1] Process modelling, simulation and optimisation of hydrocarbon(oil/gas) processes such as carbon capture from natural gas and flue gases, prilling process, LNG production, crude oil stabilisation, gas condensate stabilisation and MEG recovery. The involved softwares are Aspen Hysys, Aspen PLUS, gPROMS, gSOLID, Fluent for CFD, Matlab, EDEM, OLGA 2000, FORTRAN and C++. [2] Current research on gas processing in particular CO2 captures using absorption and membrane process. [3] Powder technology and in particular on particle characterization, granulation technology with emphasis on scale-up and the product-process relationships, milling, crystallization and prilling. [4] 2D and 3D structure characterization of particles using SEM and X-ray micro tomography, respectively. This is followed by Image Processing. [5] General chemical engineering subjects such as water and wastewater analysis. [6] Multi-disciplinary subjects such as design of diabetic shoes and self-cleaning fabrics.

Professional activities

  • 01-JAN-97: Petropars Limited Company - Process and later on as Senior Process Engineer
  • 01-JAN-11: Universiti Teknologi PETRONAS (Malaysia)  - Senior Lecturer in Chemical Engineering
  • , Committee Member of IChemE Particle Technologu Subject Group and member of : IEAGHG, International Energy Agency, Green House Gases R&D GPA (Gas Processors Association) Europe UKCCR, UK Carbon Capture Research IOM, Institute of Materials SCI, Society of Chemical Industry

Publications

Peer Reviewed Journal
TitleINFLUENCE OF TYPE OF GRANULATORS ON FORMATION OF SEEDED GRANULES (2020)
AuthorsVictoria Kitching, Nejat Rahmanian, Nurul Hanis Jamaluddin, Adrian Kelly
JournalChemical Engineering Research and Design
DOIdoi.org/10.1016/j.cherd.2020.05.017
 
TitleSteam consumption minimization using genetic algorithm optimization method: an industrial case study (2020)
AuthorsAlabdulkarem, A; Rahmanian, N
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
 
TitleSteam consumption minimization using genetic algorithm optimization method: an industrial case study (2020)
AuthorsAlabdulkarem A.;Rahmanian N.
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
DOI10.1080/15567036.2020.1761908
 
TitleInfluence of type of granulators on formation of seeded granules (2020)
AuthorsKitching V.R.;Rahmanian N.;Jamaluddin N.H.;Kelly A.
JournalChemical Engineering Research and Design
DOI10.1016/j.cherd.2020.05.017
 
TitleEstimation of Dulling Rate and Bit Tooth Wear Using Drilling Parameters and Rock Abrasiveness (2019)
AuthorsAhmed Z. Mazen, Nejat Rahmanian, Iqbal M. Mujtaba, Ali Hassanpour
JournalJournal of Petroleum Engineering and Technology
 
TitleMathematical Modelling of Performance and Wear Prediction of PDC Drill Bits: Impact of Bit Profile, Bit Hydraulic, and Rock Strength, Journal of Petroleum Engineering & Science (2019)
AuthorsMazen, A., Rahmanian, Nejat; Mujtaba, Iqbal; Hassanpour, A
JournalJournal of Petroleum Science and Engineering
DOIdoi.org/10.1016/j.petrol.2019.106849
 
Title3D printed elastic mould granulation (2019)
AuthorsOkeyo, C., Chowdhury, D.F., Cheung, K., Rahmanian, N.
JournalPowder Technology
 
TitleA novel split-reflux policy in batch reactive distillation for the optimum synthesis of a number of methyl esters (2019)
AuthorsAqar, D.Y.; Rahmanian, Nejat; Mujtaba, Iqbal M.
JournalSeparation and Purification Technology
 
TitleProcess simulation of impurity impacts on CO2 fluids flowing in pipelines (2019)
AuthorsPeletiri S.;Mujtaba I.;Rahmanian N.
JournalJournal of Cleaner Production
DOI10.1016/j.jclepro.2019.118145
 
TitleFeasibility of novel integrated dividing-wall batch reactive distillation processes for the synthesis of methyl decanoate (2018)
AuthorsAqar, D.Y.; Rahmanian, Nejat; Mujtaba, Iqbal M.
JournalSeparation and Purification Technology
 
TitleCO2Pipeline design: A review (2018)
AuthorsPeletiri S.;Rahmanian N.;Mujtaba I.
JournalEnergies
DOI10.3390/en11092184
 
TitleUsing response surface methodology to opitmize the operating parameters in a top-spray fluidized bed coating system (2018)
AuthorsSeyedin, S.H.; Ardjmand, M.; Safekordi, A.A.; Raygan, S.; Zhalehrajabi, E.; Rahmanian, Nejat
JournalSurface and Coatings Technology
 
TitleRevamping of an acid gas absorption unit: An industrial case study (2018)
AuthorsKheirinik, M.; Rahmanian, Nejat; Farsi, M.; Garmsiri, M.
JournalJournal of Natural Gas Science and Engineering
 
TitleEquations of state with group contribution binary interaction parameters for calculation of two-phase envelopes for synthetic and real natural gas mixtures with heavy fractions (2018)
AuthorsNasrifar, K.; Rahmanian, Nejat
JournalOil and Gas Science and Technology
DOIhttps://doi.org/10.2516/ogst/2017044
 
TitleEffect of packing structure on CO2 capturing process (2018)
AuthorsRahmanian N.;Rehan M.;Sumani A.;Nizami A.
JournalChemical Engineering Transactions
DOI10.3303/CET1870316
 
TitleInvestigation about profitability improvement for synthesis of benzyl acetate in different types of batch distillation columns (2018)
AuthorsAqar D.;Rahmanian N.;Mujtaba I.
JournalChemical Engineering Transactions
DOI10.3303/CET1870091
 
TitleGrading the impact of impurities in rich CO2 pipeline fluids (2018)
AuthorsPeletiri S.;Rahmanian N.;Mujtaba I.
JournalChemical Engineering Transactions
DOI10.3303/CET1870030
 
TitleProcess simulation and evaluation of ethane recovery process using aspen-HYSYS (2018)
AuthorsRezakazemi M.;Rahmanian N.;Jamil H.;Shirazian S.
JournalChemical Engineering Transactions
DOI10.3303/CET1870161
 
TitleProcess simulation and assessment of crude oil stabilization unit (2018)
AuthorsRahmanian, Nejat; Aqar, D.Y.; Bin Dainure, M.F.; Mujtaba, Iqbal M.
 
TitleSimulation and optimization of a continuous Reverse Osmosis desalination process for making fresh water (2017)
AuthorsMirghaderi F.;Rahmanian N.;Patel R.;Manca D.;Mujtaba I.
JournalChemical Engineering Transactions
DOI10.3303/CET1761295
 
TitleSynthesis of methyl decanoate using different types of batch reactive distillation systems (2017)
AuthorsAqar, D.Y.; Rahmanian, Nejat; Mujtaba, Iqbal M.
JournalIndustrial and Engineering Chemistry Research
 
TitleAn investigation on process of seeded granulation in a continuous drum granulator using DEM (2017)
AuthorsBehjani, M.A.; Rahmanian, Nejat; Ghani N.F.b.A.; Hassanpour, A.
JournalAdvanced Powder Technology
 
TitleSignificant profitability improvement for methyl decanoate production using different types of batch distillation columns (2017)
AuthorsAqar D.;Rahmanian N.;Mujtaba I.
JournalChemical Engineering Transactions
DOI10.3303/CET1757180
 
TitleFeasibility of Integrated Batch Reactive Distillation Columns for the Optimal Synthesis of Ethyl Benzoate (2017)
AuthorsAqar, D.Y.; Rahmanian, Nejat; Mujtaba, Iqbal M.
JournalChemical Engineering and Processing
 
TitleEffects of impurities on CO2pipeline performance (2017)
AuthorsPeletiri S.;Rahmanian N.;Mujtaba I.
JournalChemical Engineering Transactions
DOI10.3303/CET1757060
 
TitleIntegrated Batch Reactive Distillation Column Configurations for Optimal Synthesis of Methyl Lactate (2016)
AuthorsAqar, D.Y.; Rahmanian, Nejat; Mujtaba, Iqbal M.
JournalChemical Engineering and Processing
 
TitleSimulation and Optimization of a Condensate Stabilization Process (2016)
AuthorsRahmanian, Nejat; Jusoh, L.S.B.; Homayoonfard, M.; Nasrifar, K.; Moshfeghian, M.
JournalJournal of Natural Gas Science and Engineering
 
TitleCFD modelling of a hollow fibre system for CO2 capture by aqueous amine solutions of MEA, DEA and MDEA (2016)
AuthorsGilassi, S.; Rahmanian, Nejat
JournalInternational Journal of Chemical Reactor Engineering
 
TitleOptimal design and operation of semi-batch reactive distillation for methyl lactate synthesis with fixed product demand (2016)
AuthorsAqar D.;Rahmanian N.;Mujtaba I.
JournalComputer Aided Chemical Engineering
DOI10.1016/B978-0-444-63428-3.50154-5
 
TitleAn experimental investigation on seeded granulation of detergent powders (2016)
AuthorsRahmanian N.;Halmi M.;Kong C.;Patel R.;Yusup S.;Mujtaba I.
JournalChemical Engineering Transactions
DOI10.3303/CET1652217
 
TitleMethyl lactate synthesis using batch reactive distillation: Operational challenges and strategy for enhanced performance (2016)
AuthorsAqar, D.Y.; Rahmanian, Nejat; Mujtaba, Iqbal M.
JournalSeparation and Purification Technology
 
TitleProcess simulation and assessment of a back-up condensate stabilization unit (2015)
AuthorsRahmanian, Nejat; Bin Ilias, I.; Nasrifar, K.
JournalJournal of Natural Gas Science and Engineering
 
TitleHydrodesulfurization of crude oil over Co-Mo catalysts in a slurry reactor (2015)
AuthorsPorgar, S.; Rahmanian, Nejat
 
TitleAnalysis of Physiochemical Parameters to Evaluate the Drinking Water Quality in the State of Perak, Malaysia (2015)
AuthorsRahmanian, Nejat; bt Ali, S.H.; Homayoonfard, M.; Rehan, M.; Sadef, Y.; Nizami, A.S.
 
TitleUrea Finishing Process:Prilling versus Granulation (2015)
AuthorsRahmanian, Nejat; Naderi, S.; Supuk, E.; Abbas, R.; Hassanpour, A.
JournalProcedia Engineering
 
TitleShear stress distribution within narrowly constrained structured grains and granulated powder beds (2015)
AuthorsAntony, S.J.; Al-Sharabi, M.; Rahmanian, Nejat; Barakat, T.
JournalAdvanced Powder Technology
 
TitleMathematical modelling and numerical simulation of CO2/CH4 separation in a polymeric membrane (2015)
AuthorsGilassi, S.; Rahmanian, Nejat
JournalApplied Mathematical Modelling
 
Titleγ-Ray Pre-Irradiated Grafting of Polytetrafluoroethylene Film Membrane (2014)
AuthorsIdris, A.; Rahmanian, Nejat
JournalJurnal Teknologi
 
TitleCFD Simulation of Droplet Formation Under Various Parameters in Prilling Process (2014)
AuthorsMuhammad, A.; Pendyala, R.; Rahmanian, Nejat
JournalApplied Mechanics and Materials
 
TitleA Comparison of Co-Current and Counter-Current Modes of Operation in Urea Prilling Tower (2014)
AuthorsRahmanian, Nejat; Homayoonfard, M.
JournalAdvanced Materials Research
 
TitleNucleation and Condensation Modeling of Metal Vapor in Laval Nozzle (2014)
AuthorsZhalehrajabi, E.; Rahmanian, Nejat
JournalAdvanced Materials Research
 
TitleEffects of mesh grid and turbulence models on heat transfer coefficient in a convergent-divergent nozzle (2014)
AuthorsZhalehrajabi, E.; Rahmanian, Nejat; Hasan, N.
 
TitleHigh-pressure solubility of light gases in heavy n-alkanes from apredictive equation of state: Incorporating Henry’s law constant intobinary interaction parameter (2014)
AuthorsNasrifar, K.; Rahmanian, Nejat
JournalFluid Phase Equilibria
 
TitleInvestigation of the Growth of Particles Produced in a Laval Nozzle (2014)
AuthorsZhalehrajabi, E.; Rahmanian, Nejat; Zarrinpashne, S.; Balasubramanian, P.
 
TitleAnalysis of seeded granulation in high shear granulators by discrete element method (2013)
AuthorsHassanpour A.;Pasha M.;Susana L.;Rahmanian N.;Santomaso A.;Ghadiri M.
JournalPowder Technology
DOI10.1016/j.powtec.2012.06.028
 
TitleSimulation of urea prilling process: An industrial case study (2013)
AuthorsRahmanian N.;Homayoonfard M.;Alamdari A.
JournalChemical Engineering Communications
DOI10.1080/00986445.2012.722147
 
TitleFurther investigations on the influence of scale-up of a high shear granulator on the granule properties (2013)
AuthorsRahmanian N.;Ganimi T.;Ghadiri M.
JournalParticuology
DOI10.1016/j.partic.2013.02.004
 
TitleStrength and structure of granules produced in continuous granulators (2013)
AuthorsRahmanian N.;Ghadiri M.
JournalPowder Technology
DOI10.1016/j.powtec.2012.09.008
 
TitleStrength and structure of granules produced in continuous granulators (2013)
AuthorsRahmanian, Nejat; Ghadiri, M.
JournalPowder Technology
 
TitleSeeded granulation (2011)
AuthorsRahmanian, Nejat; Ghadiri, M.; Jia, X.
JournalPowder Technology
 
TitleSeeded granulation (2011)
AuthorsRahmanian N.;Ghadiri M.;Jia X.
JournalPowder Technology
DOI10.1016/j.powtec.2010.07.011
 
TitleEffects of process parameters on granules properties produced in a high shear granulator (2011)
AuthorsRahmanian, Nejat; Naji, A.; Ghadiri, M.
JournalChemical Engineering Research and Design
 
TitleEffects of process parameters on granules properties produced in a high shear granulator (2011)
AuthorsRahmanian N.;Naji A.;Ghadiri M.
JournalChemical Engineering Research and Design
DOI10.1016/j.cherd.2010.10.021
 
TitleEffect of granulation scale-up on the strength of granules (2009)
AuthorsHassanpour A.;Kwan C.;Ng B.;Rahmanian N.;Ding Y.;Antony S.;Jia X.;Ghadiri M.
JournalPowder Technology
DOI10.1016/j.powtec.2008.04.023
 
TitleCharacterisation of granule structure and strength made in a high shear granulator (2009)
AuthorsRahmanian N.;Ghadiri M.;Jia X.;Stepanek F.
JournalPowder Technology
DOI10.1016/j.powtec.2008.12.016
 
TitleCharacterisation of granule structure and strength made in a high shear granulator (2009)
AuthorsRahmanian, Nejat; Ghadiri, M.; Jia, X.; Stepanek, F.
JournalPowder Technology
 
TitleEffect of scale of operation on granule strength in high shear granulators (2008)
AuthorsRahmanian N.;Ghadiri M.;Ding Y.
JournalChemical Engineering Sciences
DOI10.1016/j.ces.2007.10.027
 
TitleScale-up of high-shear mixer granulators (2008)
AuthorsRahmanian N.;Ng B.;Hassanpour A.;Ding Y.;Antony J.;Jia X.;Ghadiri M.;van der Wel P.;Krug-Polman A.;York D.;Bayly A.;Tan H.
JournalKONA Powder and Particle Journal
DOI10.14356/kona.2008017
 
Other Journal
TitleDecision-making model for supply chain risk management in the petroleum industry (2020)
AuthorsOlatunde Aroge, Nejat Rahmanian, Jose Eduardo Munive-Hernandez, Reza Abdi
PublisherInder Science Publishers
 
Book Chapters
TitleCarbon capture: Postcombustion carbon capture using polymeric membrane (2017)
AuthorsRahmanian N.;Gilassi S.
JournalThe Water-Food-Energy Nexus: Processes, Technologies, and Challenges
DOI10.4324/9781315153209
 
TitleOil and Gas Properties and Correlations (2016)
AuthorsMahdavi E.;Suleymani M.;Rahmanian N.
JournalFluid Phase Behavior for Conventional and Unconventional Oil and Gas Reservoirs
PublisherElsevier
DOI10.1016/B978-0-12-803437-8.00001-4
 
Title Author(s)
Proccss simulation and evaluation of ethane recovery process using Aspcn-HYSYS (2018)Rczakazemi M.;Rahmanian N.;Jameel H.;Shirazian S.
Investigation about profitability improvement for synthesis of benzyl acetate in different types of batch distillation columns (2018)Aqw D.Y.;Rahmanian N.;Mujtaba I.M.
Effect of various packing structure on gas absorption for enhanced CO2 capture (2018)Rahmanian N.;Rehan M.;Sumani A.;Nizami A.S.
Energy Savings in CO2Capture System through Intercooling Mechanism (2017)Rehan M.;Rahmanian N.;Hyatt X.;Peletiri S.;Nizami A.
An experimental investigation on seeded granulation of detergent powders (2016)Rahmanian N.;Halmi M.;Choy D.;Patel R.;Yusup S.;Mujtaba I.
Urea finishing process: Prilling versus granulation (2015)Rahmanian N.;Naderi S.;Supuk E.;Abbas R.;Hassanpour A.
Nucleation and condensation modeling of metal vapor in Laval nozzle (2014)Zhalehrajabi E.;Rahmanian N.
CFD simulation of droplet formation under various parameters in prilling process (2014)Muhammad A.;Pendyala R.;Rahmanian N.
Heat exchanger network optimization by differential evolution method (2014)Thuy N.;Pendyala R.;Rahmanian N.;Marneni N.
Flow analysis of melted urea in a perforated rotating bucket (2013)Muhammad A.;Rahmanian N.;Pendyala R.
Effect of Primary Particle Size on the Granule Properties (2009)Rahmanian N.;Ghadiri M.;Ding Y.;Jia X.