Study of cigarette butts extract as corrosiveinhibiting agent in j55 steel material

IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 03 Issue: 01 | Jan-2014, Available @ http://www.ijret.org 444
STUDY OF CIGARETTE BUTTS EXTRACT AS CORROSIVEINHIBITING
AGENT IN J55 STEEL MATERIAL
S.Vahidhabanu1, B.Rameshbabu2
, P. Suresh Babu3
, H. Abdul Rahman4
1, 3
Department of Civil Engineering, Anna university, (BIT campus), Tiruchirappalli-620024, India
2
Pollution Control Division, CECRI (ACSIR Institute), Karaikudi – 630 006, Tamil Nadu, India
4
Department of Electronics and communication Engineering, SRM university, Kancheepuram-6032034, India
Abstract
Cigarette butts are the one of the most common garbage worldwide, as an estimated 4.5 trillion cigarette butts are deposited
somewhere into the environment every year. Chemicals such as arsenic, nicotine, polycyclic aromatic hydrocarbons, and heavy metals
have been found to leach into water and can be the source of toxicity to life in marine and freshwater environments. The present study
is to isolate crude extracts from littered cigarette butts using polar solvents, which is used as corrosion inhibitor for J55 oil well
tubular steel used in acidization of oil well and gas production. The chemical compounds present in the crude extracts analyzed using
LC-MS and ASS. Weight loss and electrochemical techniques were used to evaluate corrosion inhibitive effects on J55 oil well tubular
steel in 15% HCl solution at 30°C and 105°C.Result shows that the highest inhibition efficiencies of 99% and 61% are obtained for
30o
C and 105o
C respectively at 6% concentration.Hence delivered a potential remedial solution for the littered cigarette butts and
provide a clean environment.
Keywords: cigarette butts, corrosion, inhibitor, environment, acidization
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1. INTRODUCTION
It is an eminent fact that thousands of chemicals are found in
cigarette smoke with dozens of these chemicals being
identified as human and animal carcinogens (United States
Department of Health and Human Services [USDHHS],
2010). However, it is not known if cigarette butts, which have
become a huge litter problem in recent decades, can be a toxic
risk and become a health risk to marine as well as freshwater
habitats. One of effective ways to reduce pollution is
introduced byrecycling the cigarette butts. But, there are few
reports onreusing cigarette butts.
Acidization of petroleum oil well is a stimulation technique
for enhancing production.Hydrochloric acid (15-20%) solution
is commonly used for the purpose. The 15% HCl used for
acidizing process leads to severe corrosion of oil well
casing,tubing and accessories.The total annual cost of
corrosion in the oil &gas productions are estimated to be
$1.372 billion, broken down into $589 million in surface
pipeline and facility costs, $463 million annually in down hole
tubing expenses, and another $320 million in capital
expenditures related to corrosion (Matthew, May 2008.)
corrosion inhibitors are added along with the acid to reduce
the corrosion attack on well equipment.This study focuses on
detecting specific chemicals present in the cigarette butts
extract and used as a corrosion inhibitor for J55 steel pipe used
in acidization process. In this investigation, 15% of
hydrochloric acid and cigarette butt waterextracts on corrosion
inhibition are taken into account.
2. EXPERIMENTAL SECTION
The tested material is J55 oil well tubular steel with the
chemical composition of C 0.33,Mn 1.45, Si 0.25, S 0.06,
P0.04and Fe 97.87.Before the corrosion test, the surfaces of
the sample are mechanically polished and rinsed with Clark
solution and then dried.The apparatuses used in this study are
as follows: The chemical compositions of the cigarette
buttwater extracts are detected by liquid chromatography
(Agilent 2100)/mass spectrometry (Agilent 6410) with the
followingdetermination conditions: C18 column (2.1 mm × 50
mm, 3.5μm, Agilent), column temperature -30 °C, mobile
phasemethanol + 0.1% formic acid, flow rate 0.4 mL/min,
sampling amount 2 μL, ion source model ESI+, atomizing gas
pressure15 psi, atomizing gas flow rate 6 L/h, atomizing gas
temperature350 °C, capillary voltage 150 V, scanning model
full scanningmodel, direct sampling after filter by 0.45 μm
micro porous membrane. The electrochemical techniques such
as potentiodynamic polarization and impedance are
investigated by a potentiostat. The littered cigarette butts were
used in this study.
3. RESULTS AND DISCUSSION
3.1 Collection of Sample
Sample (littered cigarettes) was collected from various places
in Tiruchirappalli which includes airport, central bus stand,
streets, sidewalks, and other open areas. All glassware’s
(Borosil) was washed and rinsedwith deionized water,and
further sterilized at 120°C for 20 minutes prior to use. The

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collected cigarette butts were used for the preparation of crude
extracts by using water as a polar solvent.
3.2 Preparation of Inhibitor
The methodology for making corrosion inhibitor with cigarette
butt -water extracts is as follows: Five grams of littered
cigarette butts were soaked in 100 mL of deionizedwater for
seven days. Each container was sealed with paraffin strip and
placed in a shaker conical flask covered with aluminum foil.
The polar solvent sample was prepared. After 7 days the
sample was filtered using vacuum pumpfor the removal of
solid and suspended particlesand a filter paper made of
cellulose fiber.The filter paper was 9.0 cm in diameter, with
particle retention of 1-5 micrometer, fine porosity and a slow
flow rate of 5 milliliter per minute. There was approximately
75-100 mL of liquid present in the conical flask after the 7 day
period soaking. The volume of each sample depended on the
sample itself. The amount of sample that was filtered was
extracted using rotary evaporator (Make: IKA) and stored in a
glass vials at room temperature. The cigarette butts extract
was analyzed for corrosion inhibition by weight loss and
electrochemical methods. The extract had also been
determined by the LC/MS. In the rough, seven chemical
compounds with the heteroatom (N, O) and π-bonds in favor
of metal corrosion inhibition were detected in the LC/MS
results. There may also be others it hasbeen not
detected.Among them nicotine contain 1.43% high
concentration.
3.3 Presence of Heavy Metals in the Aqueous Extract
The presence of heavy metals in the aqueous solution of
cigarette butts extract as analyzed through atomic absorption
spectroscopy the results are followed as
3.4 Mass Loss Measurements
The mass loss parameters of J55 oil well tubular steel in 15%
commercial HCl containing various concentrations of
Cigarette Butt Water Extractsat 30o
C and 105o
C are given in
Table 3. From the Table 3, it can be observed that the
corrosion rate values decrease and the inhibitor efficiency
values increase with the increase of the Cigarette Butt Water
Extracts concentrations for both the temperatures. But at a
particular concentration of the inhibitors, the corrosion rate
increases and the inhibitor efficiency decreases with the
increase of temperature as can be observed from Table 3. It
can also be observed that the corrosion rate values decrease
from 165 mmpy to 1 mmpy and from 427 mmpy to 136 mmpy
for Cigarette Butt Water Extractsat 30o
C and 105o
C
respectively.The highest inhibition efficiencies of 99% and
61% are observed for Cigarette Butt Water Extracts at 6%
concentration and at 30o
C and 105o
C, respectively. The
addition of Cigarette Butt Water Extracts changes the
corrosion rate and the inhibition efficiency.At higher
temperature, Cigarette Butt Water Extracts is not an effective
inhibitor.Figure.1 shows the plot of inhibitor efficiency as a
function of inhibitor concentration for both the temperatures.
3.5 Potentiodynamic Polarization Measurements
The polarization behaviors of J55 oil well tubular steel in 15%
HCl and without various concentration of Cigarette Butt
Water Extractsat 30o
C and 105o
C is shown in Fig.2. From
these polarization curves, the polarization parameters like
Ecorr, ba, bc and Icorr are obtained. From the values Icorr, the
corrosion rates and inhibitor efficiencies are calculated and
tabulated in Table 4. In the Cigarette Butt Water Extracts, it
can be observed that the Icorr values decrease from 771 A.cm-
2
to 130 A.cm-2
at 30o
C and from 1, 35,000 A.cm-2
to
47,600 A.cm-2
at 105o
C. The highest inhibitor efficiency of
83% and 65% are achieved for both the temperatures
respectively. From the Ecorr values, it can be observed that
there are tides in the Ecorr values for the inhibitors. This
indicates clearly that Cigarette Butt Water Extractsare mixed
type of inhibitors.
3.6 Electrochemical Impedance Measurements
The impedance behavior of J55 oil well tubular steel in 15%
commercial HCl with and without various concentrations of
inhibitor at 30o
C and 105o
C is shown in Figure.3. From these
impedance curves, the impedance parameters like charge
transfer resistance (Rct) and double layer capacitance (Cdl)
values are obtained. From the values of Rct, the inhibitor
efficiency is calculated and tabulated in Table 5. From this
table, it can be observed that the Rct values of inhibitor
increased from 32 cm2
to 272  cm2
respectively and Cdl
values decreased from 265 F.cm-2
to 32 F.cm-2
respectively
with the increase of the inhibitor concentrations. The decrease
in Cdl values indicates that the adsorption of inhibitor
molecules on the J55 oil well tubular steel surface and the
corrosion process involved is activation-controlled reaction.
The plots  vs. log C are drawn for Cigarette Butt Water
Extractsinhibitors at 30o
C and 105o
C and they are shown in
Figure.4. From these plots, it can be seen that the  vs. log C
curve is linear. This linear trend confirms that Cigarette Butt
Water Extractsinhibitors obey Tem kin’s adsorption isotherm
at both the temperatures.From the above weight loss and
electrochemical studies,cigarette butt water extracts may
establish its inhibition actionvia the adsorption onto the metal
surface. The adsorption of the inhibitor could be occurred due
to the formation of oxidation film or the electrostatic
Heavy metals Concentration(mg/L)
Cu 0.72
Fe 1.06
Zn 0.02
Cr 0.12
Ni 0.21

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interactions. The oxidants in inhibitor may oxidize the iron
atoms forming the insoluble salt (oxidation film) covered on
the iron surface. The lonely electron pairs present on the N
and O atoms of the heterocyclic compounds in the inhibitor
may also adsorb through the electrostatic interactions between
the acid solution and the metal surface.Thus, the metal surface
can be protected and the iron atom’sfurther dissolution can be
prevented(Behpour, M etal.,Corros.Sci.2009).
3.7 Effect of Temperature on Thermodynamic
Properties
The values of activation energy (Ea), heat of adsorption (Qads),
free energy of adsorption (Go
a), Enthalpy (Ho
a) and the
Entropy (So
a) are calculated for the studied system and given
in Table 6. From the table, it can be found that the Ea value of
uninhibited system is 11380 kJ mol-1
and the values of
inhibited systems of inhibitor are 60679 kJ mol-1
. The Ea value
of the inhibited system is higher than the value of uninhibited
system. The higher values indicate the physical adsorption of
the inhibitor on the J55 steel surface ( I.N.Putilova et
al.1960).The Qads values of inhibitor is -46337 kJ mol-1
. As
they are more negative, the temperature effect is there. As the
temperature increases, the Go
a values for 30o
C and 105o
C
decreases to more negative of -37333 and -34953 kJ mol-1
. It
shows that the inhibitors are more efficient which suggests
that the inhibitor is strongly adsorbed on the metal surface
(J.D.Talati et al.1988). The Ho
a values are positive of 58160
and 57495 kJ mol-1
at 30o
C and 105o
C respectively, which
indicate the endothermic nature of the reaction suggesting that
higher temperature favors the corrosion process (D.Agarwal,
et al. 2003). The So
a values are also positive of 58283 and
57586 kJ mol-1
at 30o
C and 105o
C respectively, which confirm
that the corrosion process is entropically favorable (R.M.Issaet
al.2002).
3.8 Scanning Electron Microscopic Studies
Figure.5 shows the surface morphology of the specimens
immersed in 15% HCl with and without 6% of inhibitor for 6
hours at 30o
C and 105o
C. The microphotograph of Fig.5a
represents the polished J55 oil and gas well tubular steel,
which has smooth and homogenous. Figure.5b and 5c
represent the specimens immersed in HCl at 30o
C and 105o
C.
The entire surface is corroded with uniform attack, which
corresponds to the maximum corrosion rate. Figure.5d and 5e
represents the sample immersed in 6% inhibitor at 30o
C and
105o
C. From the figures, we can see that the surface of J55
steel is attacked negligibly. In the presence of inhibitors, the
surface condition is better at 30o
C than at 105o
C. This shows
the temperature effect of the inhibitor film stability on the
metal surface.
CONCLUSIONS
The results of this research were promising and suggest that
littered cigarette butts are point sources for prolonged heavy
metal contamination. Furthermore, the apparent rapid release
of multiple metals from littered cigarette butts increases the
potential for acute harm to living biota. So recycling of
cigarette butts will prevent the environmental pollutions and
also reducing the corrosive problem occurring in the steel
industryThe following conclusions can be drawn from the
above investigations inhibitor extracted from discarded
cigarette butts extract are very good inhibitor for J55 steel
corrosion in 15% HCl at 30˚
C. They are not effective
inhibitors for the similar system at 105˚
C. The highest
inhibition efficiencies of 99% and 61% are obtained for 30˚
C
and 105˚
C respectively at 6% concentration. It is mixed type
of inhibitors, which obey Temkin’s adsorption isotherm at
both the temperatures.The SEM studies confirm the results
obtained through weight loss, polarization and impedance
techniques while seeing the morphology of the J55 steel
surface.
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Table 1: LC/MS Results of the Cigarette Butt Water Extracts
Rt(mint) Mol.Wt Name Peak Area Percent
1.06 177.2 N-nitroso-nornicotine 0.32%
1.15 162.2 Nicotine 1.43%
1.29 176.2 Cotinine 0.11%
1.71 164.2 2,2dimethyl-2,3-dihydrobenzofuran-7-ol 0.07%
2.13 270.1 5-(4,6-dichloropyridin-3 yl)pyridine-1(2H)-carboxiamide 0.02%
3.23 271.1 6-(2,6-dicholorophenoxy)pyrimidine-2,4-diamine 0.04%
4.043 610.5 Rutin 0.01%

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Table 2: Chemical composition of J55 tubular steel
Material c Mn si p s Fe
J55steel 0.33 1.45 0.25 0.04 0.06 97.8
Table3: Mass loss parameters of J55steel in 15% commercial HCl with and without various concentrations of Inhibitors at 30o
C and
105o
C
S.No I.C (%) Weight loss(mg) Corrosion
rate(mmpy)
Inhibitor efficiency
30°C 105°C 30°C 105°C 30°C 105°C
1 BLANK 1434 3672 165 427 - -
2 2% 195 1762 22 204 86 52
3 4% 127 - 15 - 91 -
4 6% 13 1432 1.5 166 99 61
5 8% 10 - 1.2 - 99 -
6 10% 8 1173 1 136 99 68
Table4: Polarization parameters of J55 steel in 15% commercial HCl with and without various concentrations of Inhibitors at 30o
C
and 105o
C
S.No I.C
(%)
Ecorr
( mV vs.SCE)
ba
(mV/decade)
bc
(mV / decade)
Icorr
(A / cm2
)
Inhibitor
efficiencies
(%)
30°C 105°C 30°C 105°C 30°C 105°C 30°C 105°C 30°C 105°C
1 Blank -466 -456 97 205 111 221 771 135000 - -
2 2% -444 -483 87 110 165 248 382 60900 50 55
3 4% -456 - 122 - 160 - 250 - 68 -
4 6% -461 -437 115 146 148 257 200 56300 74 58
5 8% -459 - 111 - 172 - 164 - 79 -
6 10% -467 -468 101 176 154 178 130 47600 83 `65
Table5: Impedance parameters of J55 steel in 15% commercial HCl with and without various concentrations of Inhibitors at 30o
C
S.No I.C (%) Rct ( cm2
) Cdl(Fcm-2
) I.E (%)
1 Blank 32 265 -
2 2% 76 111 58
3 4% 79 109 59
4 6% 115 74 72
5 8% 173 49 81
6 10% 274 31 88

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Table 6: Effect of temperatures on various thermodynamic parameters
S.No.
Inhibitor
name
Ea
(kJ mol-1
)
Qads
(kJ mol-1
)
Ga
o
(kJ mol-1
)
Ha
o
(kJ mol-1
)
Sa
o
(kJ mol-1
)
30o
C 105o
C 30o
C 105o
C 30o
C 105o
C
1 Blank 11380 - - - 8863 8195 - -
2 Inhibitor 60677 -46334 -37331 -34951 58160 57494 58283 57584
Captions for Figures
Figure – 1: Variation of inhibitor efficiencies as a function of
InhibitorConcentrations at 30o
C and 105o
C
Figure – 2a: Polarization curves of J55 steel in 15%
commercial HCl Without various concentrations of Inhibitors
at 30o
C and 105o
C.
Figure – 2b: Polarization curves of J55 steel in 15%
commercial HCl with Various concentrations of Inhibitors at
30o
C and 105o
C.
Figure – 3:Impedance curves of J55 steel in 15% commercial
HCl with and Without various concentrations of Inhibitors at
30o
C.
Figure – 4: Tem kin’s adsorption isotherm plot for inhibitors
at 30o
C and 105o
C.
Figure – 5:SEM photographs of J55 steel in 15% commercial
HCl with and without 10% inhibitors at 30o
C and 105o
C.
Fig. 1: Variation of inhibitor efficiencies as function of inhibitor concentrations at 30o
C and 105o
C
0
20
40
60
80
100
120
0 2 4 6 8 10 12
InhibitorEfficiencies(%)
Inhibitor concentrations (%)
inhibitor at 30 deg C
0
10
20
30
40
50
60
70
80
0 2 4 6 8 10 12
InhibitorEfficiency(%)
Inhibitor Concentration (%)

__________________________________________________________________________________________
Fig.2a: Polarization curves of j55 steel in 15% commercial HCl without inhibitors at 300
C and 1050
C

__________________________________________________________________________________________
Fig. 2b: Polarization curves of J55 steel in 15% commercial HCl with various concentrations of inhibitors at 300
C and 1050
C.
0 50 100 150 200
-100
-50
0
Z'ohm
Z''
oh
m
15% HCl + 2%
inhibitorINHIBITORS15% HCl + 4%
15% HCl + 6%
15% HCl + 8%
15% HCl + 10%
Fig.3: Impedance Curves of J55 steel in 15% commercial HCl with and without various concentrations of Inhibitors at 30O
C.
Fig. 4 – Tem kin’s adsorption isotherm plot for inhibitor on J55 Oil well tubular steel
0
0.2
0.4
0.6
0.8
1
1.2
-0.8 -0.6 -0.4 -0.2 0
q
Log C

__________________________________________________________________________________________
(a) Polished J55 steel (PJS)
(b) PJS in 15% HCl at 30o
C (c) PJS in 15% HCl at 105o
C
(d) PJS in 15% HCl with 6% Inhibitor at 30o
C e) PJS in 15% HCl with 6% Inhibitor at 105°c
Fig. 5(a to e): SEM Photographs of J55 Steel in 15% commercial HCl with and without 6% Inhibitors at 30o
C and 105o
C

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