EFFICIENCY PREDICTION OF IONIC LIQUID AS CORROSION INHIBITOR BY GROUP CONTRIBUTION METHOD
Thermal and chemical resistance, rich electronegative heteroatoms and double bonds, very low vapor pressure, easy engineered hydrophobicity and hydrophilicity properties, good solubility, and the potential for a very large amount of ionic liquid are properties of ionic liquid considered as new co...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/68467 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Thermal and chemical resistance, rich electronegative heteroatoms and double
bonds, very low vapor pressure, easy engineered hydrophobicity and hydrophilicity
properties, good solubility, and the potential for a very large amount of ionic liquid are
properties of ionic liquid considered as new corrosion inhibitors. which is claimed to be
efficient and environmentally friendly. Recently, ionic liquid have limitations in the
form of high prices and low availability because relatife to similar conventional
compounds, the production of bulk-scale ionic liquids is still limited due to the number
of producers, types of ionic liquids, and the number of ionic liquids produced especially
for use as inhibitors. corrosion. Limitations of studies regarding to efficiency and
toxicity become one of the obstacles for manufacturers to start producing a type of ionic
liquid because the amount of ionic liquid that is available is not possible to be tested in a
comprehensive laboratory.
Therefore, rigorous research which work as initial selection in the future should
be done. Effisiency prediction with group contribution method by using
MATLAB2021b to process efficiency studies of carbon steel with 1M HCl solution
with temperature variation. Model “O” with weight loss measurement method and anion
chopped approach is the most succeed model with training and test AARD 10,24% and
R2 0.749404 and validation AARD 16% and R2 0.6961. Efficiency pattern of Choline
and BMIm can be predicted. Efficiency decrease with temperature increase except
[BPyr]Br can be predicted. Concentration increase consistently increasing efficiency
which follow Langmuir isothermal curve. Anion efficiency patter follows [CF3SO3] >
[Ac] > I > Cl. Cation efficiency pattern is [MTOA]Cl > [BMIm]Cl > [Choline]Cl and
[L-PAME] > [L-LME] > [L-AME] and [BPOBIm] > [VAPIm]. Lauryl sulfate anion
and BDBOIm, BDBBIm, BDBMIm, HexDoHAm, HexDoPAm, and HexDoEAm can
reach efficiency more than 150% at concentration 0.004%w/w. |
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