Environmental and Corrosion Control Effects of Hydrogen Sulfide Scavengers in Oil and Gas Exploration

Amosa, Mutiu K.; Mohammed-Dabo, I. A.; Yaro, S.A.

doi:10.1201/b14703-22

Cited by 12 publications

(37 citation statements)

References 11 publications

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“…One example of such a compound is the commonly used scavenger diethanolamine (DEA), which interacts in an acid–base equilibrium with H 2 S . Scavengers are compounds added to crude oil samples to suppress the release of H 2 S gas . To test whether or not H 2 S measurement was sensitive to the presence of scavengers, an equimolar amount of DEA was added to a crude sample known to be free from scavenger additives (not included in Tables and ), and the resulting H 2 S at room temperature was measured.…”

Section: Resultsmentioning

confidence: 99%

“…A common method of dealing with H 2 S is to add scavengers to crude or gas streams. These substances act to prevent H 2 S gas phase release, but can cause additional problems with fouling and corrosion . For these reasons, it is desirable to quantify dissolved H 2 S in crude samples to assess potential for gas release, as well as to evaluate the success of potential removal methods.…”

Section: Introductionmentioning

confidence: 99%

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A multidimensional gas chromatography method for the analysis of hydrogen sulfide in crude oil and crude oil headspace

Heshka

Hager

2014

J of Separation Science

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Two-dimensional heart-cutting gas chromatography is used to analyze dissolved hydrogen sulfide in crude samples. Liquid samples are separated first on an HP-PONA column, and the light sulfur gases are heart-cut to a GasPro column, where hydrogen sulfide is separated from other light sulfur gases and detected with a sulfur chemiluminescence detector. Heart-cutting is accomplished with the use of a Deans switch. Backflushing the columns after hydrogen sulfide detection eliminates any problems caused by high-boiling hydrocarbons in the samples. Dissolved hydrogen sulfide is quantified in 14 crude oil samples, and the results are shown in this work. The method is also applicable to the analysis of headspace hydrogen sulfide over crude oil samples. Gas hydrogen sulfide measurements are compared to liquid hydrogen sulfide measurements for the same sample set. The chromatographic system design is discussed, and chromatograms of representative gas and liquid measurements are shown.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A multidimensional gas chromatography method for the analysis of hydrogen sulfide in crude oil and crude oil headspace

Heshka

Hager

2014

J of Separation Science

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“…Sulfide anion is one of the most harmful species to the environment and general public health as a consequence of toxicity of H 2 S . In aqueous solutions, sulfide exists mainly as S 2− and HS − species as well as H 2 S (depending on the ambient pH) .…”

Section: Introductionmentioning

confidence: 99%

Preparation of Indium Tin Oxide Nanoparticle‐modified 3‐Aminopropyltrimethoxysilane‐functionalized Indium Tin Oxide Electrode for Electrochemical Sulfide Detection

et al. 2017

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A sulfide sensor based on an indium tin oxide nanoparticle (ITONP)‐modified ITO electrode was developed. To prepare ITONP‐modified ITO, various methods were tested. Drop‐drying of ITONPs (aq.) on aminopropyltrimethoxysilane‐functionalized ITO (APTMS/ITO) was found to be the best method on the basis of voltammetric analysis of the sulfide ion. ITONP‐modified APTMS/ITO (ITONP/APTMS/ITO) yielded much better electrocatalytic properties toward sulfide electro‐οxidation than did bare or APTMS/ITO electrodes. The ITONPs and ITONP‐modified ITO were also characterized using transmission electron microscopy and field emission scanning electron microscopy, respectively. Optimization of the type of inert electrolyte and pH yielded an ITONP/APTMS/ITO detector whose amperometrically and chronocoulοmetrically determined limits of detection for sulfide were 3.0 μM and 0.90 μM, respectively. ITONP/APTMS/ITO electrodes displayed reproducible performance, were highly stable, and were not susceptible to interference by common contaminants. Thus, the developed electrode can be considered as a promising tool for sensing sulfide.

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“…This development will be inexorably linked to the commodity price of oil. Several organic and inorganic inhibitors are used for corrosion mitigation studies, for example, chromates, phosphates, acetylenic alcohols, aromatic α,β-unsaturated aldehydes, α-alkenyl phenones, nitrogen and sulfur containing heterocyclic compounds, quaternary ammonium salts and condensation products of carbonyls and amines [4][5][6][7][8][9][10][11]. Acetylenic alcohols were preferred inhibitors for acid matrixization but their use is limited because they produce toxic gases during the treatment and contaminates the soil and water where they have been used.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Corrosion Inhibition Efficiency of Some Synthesized Water Soluble Terpolymers on N-80 Steel in HCl, NaCl and Simulated Oil Well Water

Geethanjali¹,

Subhashini²

2015

Port. Electrochim. Acta

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Five different water soluble terpolymers, namely polyvinyl alcohol-g-poly(acrylamidevinylsulfonate), polyvinyl alcohol-g-poly(acrylic acid-vinylsulfonate), polyvinyl alcohol-g-poly(acrylamide-vinyl benzene sulfonate), polyvinyl alcohol-g-poly(acrylic acid-vinyl benzene sulfonate) and polyvinyl alcohol-g-poly(vinylsulfonate-vinyl benzene sulfonate), have been designed, developed and tested for their efficacy to control N-80 steel corrosion in 10 % HCl, 3.5 % NaCl and simulated well water. The terpolymer characterization was carried out by FTIR. The inhibitors were tested by potentiodynamic and impedance techniques. The inhibitors were also tested in static and dynamic conditions at 55±5 °C, for 6 hours immersion period by weight loss method. Acrylamide terpolymers rendered the best inhibition efficiency in all the studied systems. The results provided a preliminary validation of the inhibitor such that they can be optimised and used for corrosion in oil and gas industries.

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Environmental and Corrosion Control Effects of Hydrogen Sulfide Scavengers in Oil and Gas Exploration

Cited by 12 publications

References 11 publications

A multidimensional gas chromatography method for the analysis of hydrogen sulfide in crude oil and crude oil headspace

A multidimensional gas chromatography method for the analysis of hydrogen sulfide in crude oil and crude oil headspace

Preparation of Indium Tin Oxide Nanoparticle‐modified 3‐Aminopropyltrimethoxysilane‐functionalized Indium Tin Oxide Electrode for Electrochemical Sulfide Detection

Investigation of Corrosion Inhibition Efficiency of Some Synthesized Water Soluble Terpolymers on N-80 Steel in HCl, NaCl and Simulated Oil Well Water

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