Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Corrosion Inhibition of Carbon Steel in Sulfuric Acid Solutions Using Triazole Derivative

1,934 views

Published on

Done by: Sukari group
School name; Omar Bin Khattab secondary school for boys.

The project aimed to study how the investigated triazole derivative controls the corrosion of mild steel in sulfuric acid solutions. The corrosion rates in absence and presence of different concentrations of inhibitor will be measured using weight loss and potentiodynamic polarization techniques. Also, the effect of inhibitor on surface morphology of carbon steel will be investigated using scanning electron microscope.

Published in: Education
  • D0WNL0AD FULL ▶ ▶ ▶ ▶ http://1lite.top/BI0Fr ◀ ◀ ◀ ◀
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • If you’re struggling with your assignments like me, check out ⇒ www.WritePaper.info ⇐. My friend sent me a link to to tis site. This awesome company. After I was continuously complaining to my family and friends about the ordeals of student life. They wrote my entire research paper for me, and it turned out brilliantly. I highly recommend this service to anyone in my shoes. ⇒ www.WritePaper.info ⇐.
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • Don't forget another good way of simplifying your writing is using external resources (such as HelpWriting.net ). This will definitely make your life more easier
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • I've reconditioned 17 batteries with EZ Battery Reconditioning. I was curious about your program so I decided to try it out after hearing from a friend how well this worked for her. I'm so glad I did! I've reconditioned 17 batteries with EZ Battery Reconditioning, even an old car battery I thought was long gone. My son likes using your program too! This is a skill everybody should know! Thank you, Tom and Frank. ■■■ http://t.cn/AiFAbuQp
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • D0WNL0AD FULL ▶ ▶ ▶ ▶ http://1lite.top/BI0Fr ◀ ◀ ◀ ◀
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here

Corrosion Inhibition of Carbon Steel in Sulfuric Acid Solutions Using Triazole Derivative

  1. 1. Corrosion inhibition of carbon steel in sulfuric acid using green inhibitor I am a Researcher (9th Cycle) Mohammed Al-rasheed, Abdulrahman Al-mansouri, Khalifa Al-naimi, Abdulrahamn Al-Amarri Supervised by : Dr. Yahia Hussein Shoeb Mr. Mostafa Hussein Ramadan Sukari Group - Omar Bin Al-khattab
  2. 2. Outlines • Introduction • Aim of Research • Experimental Techniques • Result & discussion • Impacts of the Research in Qatar. • Conclusions
  3. 3. Introduction What’s Corrosion? It’s the spontaneous destruction of material as a result of interaction with the surrounding environment.
  4. 4. Corrosion causes many negative effects on our daily life; bridges may collapse, cars may lose control and pipes may leak and lose carrying capacity. Corrosion problems :
  5. 5. Methods of corrosion control Cathodic Protection Coating Inhibitors
  6. 6. Aim of our research To study the efficiency of a new green inhibitor the (4-amino-triazole-3-thiol) to control the corrosion of carbon steel in acidic media
  7. 7. Experimental techniques 1. WEIGHT LOSS 2. POTENTIODYNAMIC POLARIZATION 3. SEM-EDX
  8. 8. 1. Carbon steel sheets Materials and Equipment A. Materials 2. Sulfuric acid solution 3. 4-amino-triazole-3-thiol 5. SiC emery papers grades 180-1000 4. Diamond paste 6, 3 and 1
  9. 9. Materials and Equipment B. Equipments Polishing machine Analytical balance Potentiostat Scanning electron microscope
  10. 10. Weight loss 1 2 43
  11. 11. Potentiodynamic Polarization
  12. 12. SEM-EDX Analysis
  13. 13. Result & discussion
  14. 14. Weight loss results Electrolytic solution Corrosion rate mg/cm2 Inhibition efficiency % 1M H2SO4 31543.3 - 1M H2SO4 + 0.01mM triazole 23657.5 25.1 1M H2SO4 + 0.05 mM triazole 19493.8 38.2 1M H2SO4 + 0.1 mM triazole 12585.8 60.1 1M H2SO4 + 0.5 mM triazole 1230.2 96.2
  15. 15. Blank 1 x 10-5 5 x 10-5 1 x 10-4 5 x 10-4 0 20 40 60 80 100 1M H2SO4 1M H2SO4 + 1 x 10-5 M TRIAZOLE 1M H2SO4 + 5 x 10-5 M TRIAZOLE 1M H2SO4 + 1 x 10-4 M TRIAZOLE 1M H2SO4 + 5 x 10-4 M TRIAZOLE Efficiency,% Concentration, M
  16. 16. -7 -6 -5 -4 -3 -2 -1 -1.1 -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 C-Steel + 1 M H2 SO4 C-Steel + 1 M H2 SO4 + 1.0 x 10 -5 C-Steel + 1 M H2 SO4 + 5.0 x 10 -5 C-Steel + 1 M H2 SO4 + 1.0 x 10 -4 C-Steel + 1 M H2 SO4 + 5.0 x 10 -4 E,mV(SCE) log i/A, A/cm 2 -0.00006 -0.00004 -0.00002 0.00000 0.00002 0.00004 0.00006 -0.88 -0.86 -0.84 -0.82 -0.80 -0.78 -0.76 -0.74 -0.72 C-Steel + 1 M H2 SO4 C-Steel + 1 M H2 SO4 + 1.0 x 10 -5 C-Steel + 1 M H2 SO4 + 5.0 x 10 -5 C-Steel + 1 M H2 SO4 + 1.0 x 10 -4 C-Steel + 1 M H2 SO4 + 5.0 x 10 -4 E,mV(SCE) i, A potentiodynamic curves for C-Steel in 1 M H2SO4 with different concentrations of Triazole linear curves for C-Steel in 1 M H2SO4 with different concentrations of Triazole
  17. 17. Inhibitor concentration, mol. L-1 Ecorr, (mV) iCorr, µA a c Corrosion rate / mpy Inhibition efficiency (%) Blank - 867.2 4.95 x103 226.5 186.4 2.272 x 103 - 1.0 x 10-5 -893.1 3.20 x103 223.4 134.3 1.469 x 103 35.35 5.0 x 10-5 -929.1 904.1 221.6 98.4 416.5 81.73 1.0 x 10-4 - 930.2 137.7 217.4 91.35 63.15 97.22 5.0 x 10-4 - 932.2 74.38 215.9 87.39 34.10 98.50
  18. 18. EDX Analysis
  19. 19. SEM Analysis Untreated Carbon Steel Carbon Steel + H2SO4 Bare surface After immersion in 2 M H2SO4 for 3 hrs Carbon Steel + H2SO4 + Triazole After immersion in 2 M H2SO4 containing 2x10-3 M triazole
  20. 20. EDX Analysis Carbon Steel Carbon Steel + H2SO4 Carbon Steel + H2SO4 + Triazole
  21. 21. The Economical impact in Qatar: Oil and gas constitute one of the most important industries in Qatar and corrosion presents a big challenge to them so it is very important to control the corrosion process to reduce the economic loss.
  22. 22. Conclusion Aminotriazole thiol is a highly efficient green inhibitor for carbon steel specially at concentration higher than 0.5x10-3 M. Aminotriazole thiol inhibition takes place via chemical adsorption on steel surface as revealed from EDX analysis.
  23. 23. Acknowledgment Thanks to all who worked on this program from organizers to doctors and teachers. • Dr. Noora Al-Thani and the I’m Researcher Team • Dr. Yahia Hussein Shoeb and Mr. Mostafa Hussein Ramadan • Mrs. Marwa gaboub • Mrs. Noura Al Qahtani • Special thanks to Al-bairaq, the CAM (Center For Advanced Material ) , CLU (Central Lab Unit ) and to all the sponsors, UNESCO , Qatar National Commission for Education, Culture and Science , Ras Gas, Maersk oil, Qatar-Shell. • Omar Bin Al khattab Secondary School For Boys I am a Researcher (9th Cycle)

×