تسجيل الدخول/تحديث المعلومات
https://scholar.google.com/citations?user=3Tlf0iUAAAAJ&hl=en
https://www.scopus.com/authid/detail.uri?authorId=56161108000
https://publons.com/researcher/3012382/saad-h-ammar/
https://www.researchgate.net/profile/Saad-Ammar/publications?sorting=recentlyAdded
https://publons.com/dashboard/summary/
https://orcid.org/my-orcid?orcid=0000-0003-0100-0929
https://www.linkedin.com/in/saad-ammar-aa8312152/
معلومات شخصية
الاسم الكامل: أ.د. سعد حنش عمار علي الدراجي
الجنس: ذكر سنة الميلاد: 1977 الجنسية: العراق الشهادة: دكتوراه اللقب العلمي: أستاذ التشكيل: كلية الهندسة
القسم: قسم الهندسة الكيمياوية التخصص العام: هندسة كيمياوية التخصص الدقيق: عوامل مساعدة اللغة الام: العربية البريد الالكتروني الرسمي: saad.h.ammar@nahrainuniv.edu.iq البريد الالكتروني الشخصي: saad_cheminet@yahoo.com
التحصيل الاكاديمي
- بكلوريوس هندسة كيمياوية جامعة بغداد 2001
- ماجستير هندسة كيمياوية جامعة بغداد 2004
- دكتوراه هندسة كيمياوية جامعة بغداد 2009
المناصب والتدرج الوظيفي
- مدرس في كلية الهندسة- قسم الهندسة الكيمياوية - جامعة النهرين منذ 2006 - 2015
- استاذ مساعد في كلية الهندسة- قسم الهندسة الكيمياوية - جامعة النهرين منذ 2015 - 2020
- استاذ في كلية الهندسة- قسم الهندسة الكيمياوية - جامعة النهرين منذ 2020 - لحد الان
- رئيس اللجنة العلمية في قسم الهندسة الكيمياوية-جامعة النهرين 2021-2022
اهتمامات بحثية
- المسار البحثي يتضمن تحضير العوامل المساعدة الضوية النانوبة المتراكبة وتطبيقاتها المختلفة في مجالات معالجة المياه والنفط والخلايا الوقودية الضوئية.
خبرات بحثية و اشراف
- خبرات بحثية واشراف في مجال تحضير العوامل المساعدة الضوية النانوبة وتطبيقاتها في مجالات معالجة الملوثات العضوية والبكتريا من المياه وكذلك ازالة المركبات الكبريتية من الوقود النفطي عن طريق الاكسدة بالتحفيز الضوي وكذلك تطبيقات المحفزات الضوئية في انتاج الطاقة الكهربائية المستدامة من الخلايا الوقودية الضوئية. اشراف على اكثر من 12 من طلبة الماجستير 6 من طلبة الدكتوراه.
خبرات التدريس
- تدريس تكرير النفط (بكلوريوس-السنة الرابعة-الفصل الاول)
- هندسة البتروكيمياويات (بكلوريوس-السنة الرابعة-الفصل الثاني)
- هندسة تصنيع العوامل المساعدة (دراسات عليا-ماجستير)
- العامل المساعد والمفاعل الحفازي (دراسات عليا-دكتوراه)
الجوائز وكتب الشكر
- كتب شكر وتقدير من رئاسة جامعة النهرين ومن جامعات وكليات مختلفة
المؤتمرات والندوات والورش
- مؤتمرات محلية ودولية
روابط
https://scholar.google.com/citations?user=3Tlf0iUAAAAJ&hl=en
https://www.scopus.com/authid/detail.uri?authorId=56161108000
https://publons.com/researcher/3012382/saad-h-ammar/
https://www.researchgate.net/profile/Saad-Ammar/publications?sorting=recentlyAdded
https://publons.com/dashboard/summary/
https://orcid.org/my-orcid?orcid=0000-0003-0100-0929
https://www.linkedin.com/in/saad-ammar-aa8312152/
المنشورات
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Rational design of 1D TaON nano-fibrous network decorated 2D BiOBr nanosheets for sustainable photocatalytic detoxification of antibiotics in wastewater via S-scheme heterostructure system
B Graimed, Z Jabbar, M Alsunbuli, S Ammar, S Hamood, A Taher, D Sabit, 2023
Journal of Water Process Engineering, 54, 104059 -
A comprehensive review highlights the photocatalytic heterojunctions and their superiority in the photo-destruction of organic pollutants in industrial wastewater
A Hussein, 2023
Inorganic Chemistry Communications, 158, 111503 -
A review study summarizes the main characterization techniques of nano-composite photocatalysts and their applications in photodegradation of organic pollutants
J Jabbar, Z Z.H., G Graimed, B B.H., I Issa, M M.A., K Khadim, H H.J., A Ammar, S S.H., O Okab, A Shafiq, Y Y.A., 2023
Environmental Nanotechnology, Monitoring & Management, 19, 100765 -
Synthesis of heterostructure composite (g-C3N4/phosphomolybdic acid) for synergistic piezo/photo-catalytic degradation of CR dye and S. aureus bacteria
S Jabbar, 2023
Journal of Photochemistry and Photobiology A: Chemistry, 447, 115243 -
Facile construction of g-C3N4/MnWO4/NiS heterostructures for photocatalytic degradation of organic contaminates under visible light irradiation
E Jabbar, 2023
Materials Letters, 347, 134599 -
Improved photocatalytic degradation of methyl violet dye and pathogenic bacteria using g-C3N4 supported phosphotungstic acid heterojunction
M Jabbar, 2023
Journal of Photochemistry and Photobiology A: Chemistry, 437, 114506 -
Enhanced synergistic photocatalytic degradation of oxytetracycline antibiotic using novel Ag2MoO4/Co-zeolitic imidazolate framework (ZIF-67) Z-type heterojunction
I Jabbar, 2023
Inorganic Chemistry Communications, 156, 111277 -
Assembling ZnMnFe2O4@Ag-AgVO3 nanostructure heterojunctions for photocatalytically degrading RhB and Pseudomonas aeruginosa bacteria under visible irradiation
N Jasim, S Ammar, S Ebrahim, 2023
Journal of Photochemistry and Photobiology A: Chemistry, 449, 115380 -
Visible-light-induced photodegradation of ofloxacin antibiotic by facile assembled BiFeO3/Bi-modified g-C3N4 heterojunctions
S Ammar, F Ali, H Hadi, Z Jabbar, 2023
Materials Science in Semiconductor Processing, 171, 108026 -
Highly stable β-Bi2O3/Ag decorated nanosilica as an efficient Schottky heterojunction for ciprofloxacin photodegradation in wastewater under LED illumination
B Ammar, 2023
Materials Science in Semiconductor Processing, 156, (15 March), 107303 -
Decoration of 0D Bi3NbO7 onto 2D BiOIO3 nanosheets as visible-light responsive S-scheme photocatalyst for antibiotics oxidation in wastewater
B Graimed, Z Jabbar, M Alsunbuli, S Ammar, A Taher, 2023
Environmental Research, 243, 117854 -
Reasonable decoration of CuO/Cd0.5Zn0.5S nanoparticles onto flower-like Bi5O7I as boosted step-scheme photocatalyst for reinforced photodecomposition of bisphenol A and Cr(VI) reduction in wastewater
Z Jabbar, B Graimed, H Najm, S Ammar, A Taher, 2023
Journal of Environmental Management, 348, 119302 -
Photocatalytic degradation of Rhodamine B using CoxZn1-xFe2O4 nanocomposite under visible light irradiation: Synthesis, characterization and its application
N Ammar, 2023
Alexandria Engineering Journal, 82, 557-576 -
Fabrication of g-C3N4 nanosheets immobilized Bi2S3/Ag2WO4 nanorods for photocatalytic disinfection of Staphylococcus aureus cells in wastewater: dual S-scheme charge separation pathway
Z Ammar, 2023
Journal of Photochemistry and Photobiology A: Chemistry, 438, 114556 -
Fabrication and catalytic properties of polyoxometalates immobilized on mono- and bimetallic-zeolitic imidazolate frameworks for degradation of AV7 dye
S Ali, 2023
Journal of the Iranian Chemical Society -
Fabrication of ZnxMn1-xFe2O4 metal ferrites for boosted Photocatalytic Degradation of Rhodamine-B Dye
N Jasim, S Ebrahim, S Ammar, 2023
Results in Optics, 13, 100508 -
Synthesis and photocatalytic activity of polyoxometalates immobilized onto g-C3N4/ZIF-67 heterostructures
L Lafta, M M.A., S Ammar, 2023
Materials Science in Semiconductor Processing, 153, 107131 -
Photocatalytic degradation of Congo red dye using magnetic silica-coated Ag2WO4/Ag2S as Type I heterojunction photocatalyst: Stability and mechanisms studies
J Jabbar, Z Z.H., G Graimed, B B.H., I Issa, M M.A., A Ammar, S S.H., E Ebrahim, S S.E., K Khadim, H Okab, A A.A., 2023
Materials Science in Semiconductor Processing, 153, 107151 -
Construction of heteropolyacid-anchored magnetic g-C3N4/Fe3O4@polyindole hybrids for efficient photocatalytic destruction of methyl orange and bacteria
A Jabbar, 2023
Journal of Photochemistry & Photobiology, A: Chemistry, 444, 114923 -
Enhanced photocatalytic degradation activity of ZIF-8 doped with Ag2WO4 photocatalyst
R Salman, 2023
Journal of the Taiwan Institute of Chemical Engineers, 151, 105141 -
Photocatalytic destruction of Congo red dye in wastewater using a novel Ag2WO4/Bi2S3 nanocomposite decorated g-C3N4 nanosheet as ternary S-scheme heterojunction: Improving the charge transfer efficiency
Z Issa, S Ammar, 2023
Diamond and Related Materials, 133, 109711 -
Silver oxide-zeolite for removal of an emerging contaminant by simultaneous adsorption-photocatalytic degradation under simulated sunlight irradiation
S Al-Jubouri, H Sabbar, E Khudhair, S Ammar, S Batty, S Khudhair, A Mahdi, 2023
Journal of Photochemistry and Photobiology A: Chemistry -
Bimetallic (Fe/Zn-ZIF-8) crystals: Fabrication and adsorptive removal activity
E Khudhair, Y Kareem, S Ammar, A Mahdi, 2023
Materials Today: Proceedings -
Construction of co-zeolitic imidazolate framework/Bi2WO6 heterojunction photocatalyst with improved adsorption and photodegradation of ciprofloxacin
S Khadim, 2023
Journal of Photochemistry and Photobiology A: Chemistry, 448, 115330 -
Facile assembly of CoS/Ag2MoO4 nanohybrids for visible light-promoted Z-type-induced synergistically improved photocatalytic degradation of antibiotics
S Jabbar, 2023
Journal of Photochemistry and Photobiology A: Chemistry, 444, 115000 -
Design and construction of a robust ternary Bi5O7I/Cd0.5Zn0.5S/CuO photocatalytic system for boosted photodegradation of antibiotics via dual-S-scheme mechanisms: Environmental factors and degradation intermediates
Z Taher, 2023
Environmental Research, 234, 116554 -
A comprehensive review on photocatalytic degradation of organic pollutants and microbial inactivation using Ag/AgVO3 with metal ferrites based on magnetic nanocomposites
N Ammar, 2023
Cogent Engineering, 10, (1), 2228069 -
Assembling g-C3N4@phosphomolybdic acid/AgCl photocatalysts for aerobic photocatalytic degradation of organic pollutants
W kader, 2023
Inorganic Chemistry Communications, 150, 110533 -
Visible-light boosted photocatalytic performance of sulfonated polypyrrole-coated ZIF-8 hybrids for pollutants degradation
S Jabbar, 2023
Journal of Molecular Structure, 1288, 135752 -
Silver tungstate decorated carbon nanotubes (Ag2WO4/CNTs) for enhanced adsorptive removal of malachite green dye
N Ali, F Ali, S Ammar, 2023
AIP Conference Proceedings, 2787, 040008
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Assembling ZIF-67@Cd0.5Zn0.5S nanocomposites with an enhanced photocatalytic activity
E S.Mahdic, 2022
Inorganic Chemistry Communications, 142, (August 2022), 109639 -
Zeolitic imidazolate framework grafted by cobalt tungstate as an efficient photocatalyst for photocatalytic oxidative desulfurization of dibenzothiophene
S Flihh, S Ammar, 2022
Materials Science in Semiconductor Processing, 149, (October 2022), 106894 -
Sand bioconsolidation/biosolidification by microbially induced carbonate precipitation using ureolytic bacteria
H Khadim, S Ebrahim, S Ammar, 2022
AIP Conference Proceedings, 2398, 040022 -
Synthesis, characterization, and adsorptive desulfurization efficiency of ZIF-67 nanoadsorber
S Flihh, S Ammar, 2022
AIP Conference Proceedings, 2450, (1), 020032 -
Boosted visible-light-driven photocatalytic degradation of lomefloxacin over α-Ag2WO4/NiSx nanocomposites
H Ammar, 2022
Environmental Nanotechnology, Monitoring and Management, 18, 100722 -
Fabricating MnxCd1-xS/ZIF-8 nanocatalysts to enhance sonophotocatalytic degradation of organic pollutants
H Mohammed, 2022
Journal of Solid State Chemistry, 315, 123428 -
Boosting adsorptive desulfurization of hydrocarbon fuels by CuFe2O4-grafting ZIF-8 magnetic nanocomposite as an efficient and recyclable adsorbent
D Darwash, R Abdulnabi, W Ammar, S Abdulkarim, A A.L., 2022
Journal of Sulfur Chemistry, 43, (4), 353-365 -
Supported heterogeneous nanocomposites (SiO2/Fe3O4/Ag2WO4) for visible-light-driven photocatalytic disinfection against E. coli.
J Jabbar, Z Z.H., E Ebrahim, S Ammar, S S.H., 2022
Materials Science in Semiconductor Processing, 141, 106427 -
Synthesis of recyclable core/shell CoFe2O4@CoWO4 photocatalysts for efficient visible-light photocatalytic degradation of environmental pollutants
H Ammar, 2022
Environmental Nanotechnology, Monitoring & Management, 17, 100664
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Fabrication and photocatalytic degradation activity of core/shell ZIF-67@ CoWO4@ CoS heterostructure photocatalysts under visible light
S Flihh, S Ammar, 2021
Environmental Nanotechnology, Monitoring & Management, 16, (December 2021), 100595 -
Enhanced visible-light photocatalytic bacterial inhibition using recyclable magnetic heterogeneous nanocomposites (Fe3O4@SiO2@Ag2WO4@Ag2S) in core/shell structure
Z Jabbar, S Ammar, S Ebrahim, 2021
Environmental Nanotechnology, Monitoring & Management, 16, (December 2021), 100601 -
Catalytic/photocatalytic oxidative desulfurization activities of heteropolyacid immobilized on magnetic polythiophene nanocatalyst
R Shafi, S Ammar, M Rashed, 2021
Journal of Sulfur Chemistry -
Preparation and characteristics of CuO/γ-Al2O3 nanocomposite as efficient adsorbent for adsorption of sulfur compounds from Iraqi naphtha
A Awadh, S Ammar, B Altabbakh, 2021
Materials Today: Proceedings -
Phosphotungstic acid immobilized onto ZnO coated zerovalent iron (Fe@ ZnO/PW) core/shell magnetic nanocomposite for enhanced photocatalytic bacterial inactivation under visible …
E Khudhair, S Ammar, H Khadim, 2021
Journal of Photochemistry and Photobiology A: Chemistry, 404, 112907 -
Keggin- and Dawson-type polyoxotungstates immobilized on poly(3, 4-ethylenedioxythiophene)-coated zerovalent iron nanoparticles: synthesis, characterization and their catalytic …
S Ammar, M Salman, R Shafi, 2021
Journal of Environmental Chemical Engineering
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Synthesis, characterization and environmental remediation applications of polyoxometalates-based magnetic zinc oxide nanocomposites (Fe3O4@ZnO/PMOs)
S Ammar, H Abdulnabi, 2020
Environmental Nanotechnology, Monitoring & Management -
Microwave-induced catalytic oxidative desulfurization of gasoil fraction over phosphotungstic acid-based magnetic silica (Ni@ SiO2\PWA) nanocatalyst
Y Kareem, S Ammar, R Darwash, 2020
Catalysis Communications, 136, 105926 -
A novel airlift photocatalytic fuel cell (APFC) with immobilized CdS coated zerovalent iron (Fe@CdS) and g-C3N4 photocatalysts film as photoanode for power generation and …
S Ammar, R Shafi, A Ali, 2020
Colloids and Surfaces A: Physicochemical and Engineering Aspects -
Catalytic activity of niobium oxide supported bimetallic nanocatalysts (IrxPt1-x/Nb2O5) for oxidation of formaldehyde at moderate temperature
S Ammar, M Salman, R Shafi, 2020
Colloid and Interface Science Communications, 38, 100305 -
Core/shell Fe3O4@Al2O3-PMo magnetic nanocatalyst for photocatalytic degradation of organic pollutants in an internal loop airlift reactor
S Ammar, A Elaibi, I Mohammed, 2020
Journal of Water Process Engineering, 37, (October), 101240 -
Catalytic-oxidative/adsorptive denitrogenation of model hydrocarbon fuels under ultrasonic field using magnetic reduced graphene oxide-based phosphomolybdic acid (PMo-Fe3O4/rGO)
S Ammar, Y Kareem, M Mohammed, 2020
Ultrasonics Sonochemistry -
Sulfonated polyindole coated magnetic zincoxysulfide (Ni@ ZnO0. 6S0. 4@ SPID) core/shell nanocatalyst for simultaneous photocatalytic H2 production and BPA degradation
A Ali, S Ammar, E Khudhair, 2020
Environmental Nanotechnology, Monitoring & Management, 14, 100359 -
Zincoxysulfide coated zinc ferrite core/shell nanocatalyst: An efficient photoanode for single chamber photocatalytic fuel cell
M Salman, S Ammar, R Shafi, 2020
Nano-Structures & Nano-Objects, 24, 100572 -
Synthesis of magnetic zincoxysulfide core/shell nanocomposites (Ni@ZnO0.6S0.4) for COD photocatalytic degradation in oil refinery wastewater
M Dahash, S Ammar, W Abdulnabi, 2020
IOP Conference Series: Materials Science and Engineering, 928, 022063 -
Synthesis of Ni@ γ-Al 2 O 3@ PID\SiW recyclable nanocatalyst and its catalytic reduction and antibacterial activities
S Ammar, H Khadim, A Al-Farraji, 2020
Nanotechnology for Environmental Engineering, 5, (16)
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Biomineralization based remediation of cadmium and nickel contaminated wastewater by ureolytic bacteria isolated from barn horses soil
H Khadim, S Ammar, S Ebrahim, 2019
Environmental Technology & Innovation -
Electrocoagulation technique for refinery wastewater treatment in an internal loop split-plate airlift reactor
S Ammar, N Ismail, A Ali, W Abbas, 2019
Journal of Environmental Chemical Engineering, 7, (6) -
Core/shell phosphomolybdic acid-supported magnetic silica nanocomposite (Ni@SiO2-PMo): Synthesis, characterization and its application as a recyclable antibacterial agent
T Jabbar, S Ammar, 2019
Colloid and Interface Science Communications, 33, (November 2019, 100214) -
Microwave-assisted catalytic oxidative desulfurization of gasoil fuel using synthesized CuO-ZnO nanocomposites
M Fadhil, S Ammar, M Jabbar, 2019
Journal of fuel chemistry and technology, 47, (09), 1075-1082 -
Isolation and identification of Ureolytic Bacteria isolated from livestock soil to improve the strength of cement mortar
H Khadhim, S Ebrahim, S Ammar, 2019
4th International Scientific Conference on Environment and Sustainable Development, Egypt, Cairo, 24-28 November 2018
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Cultivation of Nannochloropsis oculata and Isochrysis galbana microalgae in produced water for bioremediation and biomass production
S Ammar, H Khadim, A Mohamed, 2018
Environmental Technology & Innovation, 10, 132-142 -
Oilfield produced water treatment in internal-loop airlift reactor using electrocoagulation/flotation technique
S Ammar, A Akbar, 2018
Chinese Journal of Chemical Engineering, 26, (4), 879-885 -
Photocatalytic oxidative desulfurization of liquid petroleum fuels using magnetic CuO-Fe3O4 nanocomposites
S Ammar, Y Kareem, A Ali, 2018
Journal of Environmental Chemical Engineering -
Zn(II) Removal from Wastewater by Electrocoagulation/Flotation Method using New Configuration of a Split-Plate Airlift Electrochemical Reactor
S Ammar, F Ali, R Shafi, A Elaibi, 2018
Journal of Engineering, 24, (1), 97-110 -
Synthesis and Characterization of NaOH/γ-Al2O3 Nanocatalyst for Biohydrocarbons Production
A Ali, S Ammar, Y Kareem, 2018
3rd Conference on Sustainable and Renewable Energy -
Refining wastewater treatment and bioelectricity generation in constructed wetland-microbial fuel cell (CW-MFC) using magnetic activated carbon (MAC) as electrodes
L Jabbar, S Ammar, 2018
6th International Conference on Nanotechnology, Advanced Materials and their Applications -
Preparation and characterization of magnetic nickel nanoparticles by chemical reduction reaction
S Ammar, N Ismail, M Jabbar, 2018
Journal of Petroleum Researches & Studies, (21) -
Preparation and characterization of γ-Al2O3 nanoparticles via chemical precipitation route: Effect of precursor concentration
A Awadh, S Ammar, B Altabbakh, 2018
International Journal of Energy and Environment (IJEE), 9, (3)
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Adsorption Kinetic and Isotherms Studies of Thiophene Removal from Model Fuel on Activated Carbon Supported Copper Oxide
S Ammar, S Jaafar, 2017
Iraqi J. Chem. Pet. Eng.(IJCPE), 18, (2), 83-93 -
Adsorptive Desulfurization of Gas Oil Over Cu2O/AC, ZnO/AC and NiO/AC Adsorbents
S Ammar, S Jaffar, 2017
Engineering and Technology Journal, 35, (8), 856-863 -
Anaerobic Digestion and Codigestion of Chlorella Vulgaris Microalgae Biomass with Wastewater Sludge and Dairy Manure for Biogas Production
S Ammar, S Khodhair, 2017
Al-Khwarizmi Engineering Journal, 13, (3), 18- 26
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Cultivation of Microalgae Chlorella vulgaris in Airlift photobioreactor for Biomass Production using commercial NPK Nutrients
S Ammar, 2016
Al-Khwarizmi Engineering Journal, 12, (1), 90-99 -
Performance Evaluation of an Internal-Loop Airlift Reactor for Phenolic Wastewater Treatment by Adsorption Onto Activated Carbon
S Ammar, S Abdu-Majeed, 2016
International Journal of Current Engineering and Technology, 6, (1)
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Experimental Evaluation Use of Semifluidized Bed Adsorber for the Treatment of P-chlorophenol and O-cresol in Wastewater using Activated Carbon as Adsorbent
S Ammar, 2015
Journal of Engineering, 21, (12), 19-28
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Extraction of Cd, Cu, Fe, and Zn metal ions mixture using PEG-inorganic salt aqueous two phase systems in the presence of iodide (KI) and Thiocyanate (KSCN) ions as Extractants
S Ammar, M Mohammed, Y Kareem, 2013
Journal of University of Babylon, 21, (2)
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Extraction of metal ions mixture cadmium, iron, zinc and copper from aqueous solutions using emulsion liquid membrane technique
S Ammar, H Attia, A Affat, 2012
2012 first National Conference for engineering sciences (FNCES 2012), 1-10
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Extraction of Zn (II) and Cu (II) Ions Using PEG (300)-KCl Salt Aqueous Two-Phase Systems
S Ammar, W Abdul-Nabi, M Rasheed, 2011
Al-Khwarizmi Engineering Journal, 7, (2), 68-74 -
HYDRODESULFURIZATION OF THIOPHENE OVER CO-MO/AL2O3 CATALYST USING FIXED-AND FLUIDIZED-BED REACTORS
A Mohammed, S Ammar, 2011
Journal of Engineering, 17, (1) -
The effect of mass transfer resistance on the kinetics of catalytic hydrodesulfurization of thiophene over Pt/Al2O3
S Ammar, 2011
Journal of Petroleum Researches & Studies, 2
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Preparation of polyvinyl alcohol from local raw material
C Haweel, S Ammar, 2008
Iraqi J. Chem. Pet. Eng.(IJCPE), 9, 15-21
2609 الزيارات
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اخر تحديث لهذه الصفحة في: 2023-12-07 21:09:56
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تصميم وبرمجة د. رسول هشام السعدي - مركز الحاسبة الالكترونية
بريد الدعم الفني: cv@nahrainuniv.edu.iq
تصميم وبرمجة د. رسول هشام السعدي - مركز الحاسبة الالكترونية
بريد الدعم الفني: cv@nahrainuniv.edu.iq
عدد الزيارات: 3690590
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