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  1. Article ; Online: Petroleum sludge treatment and disposal techniques: a review.

    Murungi, Pearl Isabellah / Sulaimon, Aliyu Adebayo

    Environmental science and pollution research international

    2022  Volume 29, Issue 27, Page(s) 40358–40372

    Abstract: Petroleum sludge is a solid emulsified waste and contaminant commonly produced in the petroleum industry. In the recent past, there has been increased business growth in the oil sector, resulting in increased volumes of oily sludge characterized by high ... ...

    Abstract Petroleum sludge is a solid emulsified waste and contaminant commonly produced in the petroleum industry. In the recent past, there has been increased business growth in the oil sector, resulting in increased volumes of oily sludge characterized by high viscosity and toxicity. Therefore, sludge treatment before discarding is extremely necessary. This review seeks to highlight various conventional and evolving approaches in the treatment, recovery, and disposal of petroleum sludge and assess their suitability under various conditions.
    MeSH term(s) Oils ; Petroleum/analysis ; Sewage
    Chemical Substances Oils ; Petroleum ; Sewage
    Language English
    Publishing date 2022-03-24
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-19614-z
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  2. Article ; Online: Lignosulfonate-Based Ionic Liquids as Asphaltene Dispersants.

    Mahtar, Ariff / Sulaimon, Aliyu Adebayo / Wilfred, Cecilia Devi

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 8

    Abstract: Asphaltenes are recognized as being troublesome from upstream to downstream in the oil industry due to their tendency to precipitate and self-associate. Their extraction from asphaltenic crude oil for a cost-effective refining process is a crucial and ... ...

    Abstract Asphaltenes are recognized as being troublesome from upstream to downstream in the oil industry due to their tendency to precipitate and self-associate. Their extraction from asphaltenic crude oil for a cost-effective refining process is a crucial and critical challenge in the oil and gas sector. Lignosulfonate (LS), as a by-product of the wood pulping process in the papermaking industry, is a highly available and underutilized feedstock. This study aimed to synthesize novel LS-based ionic liquids (ILs) by reacting lignosulfonate acid sodium salt [Na]
    Language English
    Publishing date 2023-04-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28083390
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  3. Article: Petroleum sludge treatment and disposal techniques: a review

    Murungi, Pearl Isabellah / Sulaimon, Aliyu Adebayo

    Environmental science and pollution research. 2022 June, v. 29, no. 27

    2022  

    Abstract: Petroleum sludge is a solid emulsified waste and contaminant commonly produced in the petroleum industry. In the recent past, there has been increased business growth in the oil sector, resulting in increased volumes of oily sludge characterized by high ... ...

    Abstract Petroleum sludge is a solid emulsified waste and contaminant commonly produced in the petroleum industry. In the recent past, there has been increased business growth in the oil sector, resulting in increased volumes of oily sludge characterized by high viscosity and toxicity. Therefore, sludge treatment before discarding is extremely necessary. This review seeks to highlight various conventional and evolving approaches in the treatment, recovery, and disposal of petroleum sludge and assess their suitability under various conditions.
    Keywords industry ; oils ; petroleum ; pollution ; research ; sludge ; toxicity ; viscosity
    Language English
    Dates of publication 2022-06
    Size p. 40358-40372.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    Note Review
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-022-19614-z
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  4. Article: Quantitative and qualitative analyses of grafted okra for corrosion inhibition of mild steel in acidic medium.

    Sulaimon, Aliyu Adebayo / Murungi, Pearl Isabellah / Tackie-Otoo, Bennet Nii / Nwankwo, Princess Christiana / Bustam, Mohamad Azmi

    Frontiers in chemistry

    2023  Volume 11, Page(s) 1129673

    Abstract: Introduction: ...

    Abstract Introduction:
    Language English
    Publishing date 2023-02-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711776-5
    ISSN 2296-2646
    ISSN 2296-2646
    DOI 10.3389/fchem.2023.1129673
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  5. Article ; Online: Analysis of natural okra extracts as corrosion inhibitors for mild steel in acidic medium.

    Sulaimon, Aliyu Adebayo / Murungi, Pearl Isabellah / Tackie-Otoo, Bennet Nii / Nwankwo, Princess Christiana / Bustam, Mohamad Azmi

    Environmental science and pollution research international

    2023  Volume 30, Issue 56, Page(s) 119309–119328

    Abstract: Plant extracts have been shown to effectively inhibit metal corrosion. Using the Box-Behnken design, gravimetric, and electrochemical techniques, analyses were designed to investigate the anti-corrosion potential of okra in a 1M HCl medium. The ... ...

    Abstract Plant extracts have been shown to effectively inhibit metal corrosion. Using the Box-Behnken design, gravimetric, and electrochemical techniques, analyses were designed to investigate the anti-corrosion potential of okra in a 1M HCl medium. The inhibition performances derived from the various methods were in good agreement, demonstrating that physio-chemisorption was effective and adhered to the Langmuir isotherm model. The efficiency of okra mucilage extract was 96% at a much lower concentration compared to 91.2% and 88.4% for the unsieved extract and gelly-okra filtrate, respectively. FTIR results showed the presence of several functional groups in the okra mucilage extract that are associated with adsorption, and TGA analysis revealed that the extract has high thermal stability. FESEM analysis also supported evidence of adsorption. It was determined that corrosion inhibition by okra mucilage extract was primarily influenced by temperature, followed by extract concentration, with immersion time having the least effect. From the model optimization, it was observed that okra mucilage extract at 200 ppm, 60°C, and 24 h gave an inhibition efficiency of 89.98% and high desirability. These results demonstrate the high capacity of natural okra as an efficient biodegradable corrosion inhibitor.
    MeSH term(s) Abelmoschus ; Steel ; Corrosion ; Acids ; Plant Extracts ; Polysaccharides
    Chemical Substances Steel (12597-69-2) ; Acids ; Plant Extracts ; Polysaccharides
    Language English
    Publishing date 2023-11-04
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-023-30635-0
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  6. Article ; Online: Investigation of physical properties and carbon dioxide solubility in tetramethylammonium bromide and tetraethylammonium bromide ionic liquids solutions.

    Rather, Sami-Ullah / Sulaimon, Aliyu Adebayo / Shariff, Azmi M / Qasim, Ali / Bamufleh, Hisham Saeed / Alhumade, Hesham Abdulhamed / Saeed, Usman / Al-Alayah, Walid

    Chemosphere

    2023  Volume 337, Page(s) 139290

    Abstract: Carbon dioxide is a major greenhouse gas that is responsible for global warming and renders harmful effects on the atmosphere. The unconstrained release of ... ...

    Abstract Carbon dioxide is a major greenhouse gas that is responsible for global warming and renders harmful effects on the atmosphere. The unconstrained release of CO
    MeSH term(s) Animals ; Ionic Liquids ; Carbon Dioxide ; Tetraethylammonium ; Solubility ; Moles
    Chemical Substances Ionic Liquids ; Carbon Dioxide (142M471B3J) ; tetramethylammonium (H0W55235FC) ; Tetraethylammonium (66-40-0) ; triethylammonium bicarbonate (15715-58-9)
    Language English
    Publishing date 2023-06-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139290
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  7. Article ; Online: Investigation of physical properties and carbon dioxide solubility in tetramethylammonium bromide and tetraethylammonium bromide ionic liquids solutions

    Rather, Sami-ullah / Sulaimon, Aliyu Adebayo / Shariff, Azmi M. / Qāsim ʻAlī Nīshāpūrī / Bamufleh, Hisham Saeed / Alhumade, Hesham Abdulhamed / Saeed, Usman / Al-Alayah, Walid

    Chemosphere. 2023 Oct., v. 337 p.139290-

    2023  

    Abstract: Carbon dioxide is a major greenhouse gas that is responsible for global warming and renders harmful effects on the atmosphere. The unconstrained release of CO₂ into the atmosphere should be prevented and various techniques have been developed in this ... ...

    Abstract Carbon dioxide is a major greenhouse gas that is responsible for global warming and renders harmful effects on the atmosphere. The unconstrained release of CO₂ into the atmosphere should be prevented and various techniques have been developed in this regard to capture CO₂ using different solvents and other compounds. Ionic liquids are a suitable candidate to capture CO₂ due to their better solubility behaviour. In this work, two ionic liquids namely tetramethylammonium bromide (TMAB) and tetraethylammonium bromide (TEAB) are employed experimentally to capture CO₂ and investigate their solubility behaviour. The study is performed at the temperature values of 303 K, 313 K, and 323 K and the pressure values of 5, 10, 15, and 20 bar equivalent to 0.5, 1.0, 1.5, and 2.0 MPa respectively. The concentrations of both ionic liquid solutions are 2.5 wt%, 5.0 wt%, and 10.0 wt%. The solubility results are considered in terms of mol fraction which is the ratio of moles of CO₂ captured per moles of ionic liquid. The density and viscosity values are also determined for both compounds at respective conditions. COSMO-RS is used to generate the sigma profile, sigma surface, and Henry's constant of the ions involved in the study. CO₂ is found to be soluble in both ionic liquids, but TEAB showed better solubility behaviour as compared to TMAB. The solubility of CO₂ is found to be increasing with the increase in pressure while it decreases with the increase in temperature.
    Keywords carbon dioxide ; greenhouse gases ; ionic liquids ; solubility ; temperature ; tetraethylammonium compounds ; tetramethylammonium compounds ; viscosity ; CO2 solubility ; Density ; Tetramethylammonium bromide ; Tetraethylammonium bromide
    Language English
    Dates of publication 2023-10
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139290
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  8. Article ; Online: Physicochemical approaches reveal the impact of electrolytes and hydrotropic salt on micellization and phase separation behavior of polymer polyvinyl alcohol and surfactant mixture

    Rather, Sami-ullah / Md. Habibur Rahman / Bamufleh, Hisham S. / Alhumade, Hesham / Taimoor, Aqeel Ahmad / Saeed, Usman / Sulaimon, Aliyu Adebayo / Alalayah, Walid M. / Shariff, Azmi Mohd / Hoque, Md Anamul

    International Journal of Biological Macromolecules. 2023 Apr., v. 235 p.123761-

    2023  

    Abstract: The polymer-surfactant mixture has usages in numerous industries mainly in the production of daily used materials. Herein, the micellization and phase separation nature of the sodium dodecyl sulfate (SDS) and TX-100 along with a synthetic water-soluble ... ...

    Abstract The polymer-surfactant mixture has usages in numerous industries mainly in the production of daily used materials. Herein, the micellization and phase separation nature of the sodium dodecyl sulfate (SDS) and TX-100 along with a synthetic water-soluble polymer-polyvinyl alcohol (PVA) have been conducted using conductivity and cloud point (CP) measurement tools. In the case of micellization study of SDS + PVA mixture by conductivity method, the CMC values were obtained to be dependent on the categories and extent of additives as well as temperature variation. Both categories of studies were performed in aq. solutions of sodium chloride (NaCl), sodium acetate (NaOAc), and sodium benzoate (NaBenz) media. The CP values of TX 100 + PVA were decreased and enhanced in simple electrolytes and sodium benzoate media respectively. In all cases, the free energy changes of micellization (∆Gₘ⁰) and clouding (∆Gc⁰) were obtained as negative and positive respectively. The enthalpy (∆Hₘ⁰) and entropy (∆Sₘ⁰) changes for SDS + PVA system micellization was negative and positive respectively in aq. NaCl and NaBenz media, and in aq. NaOAc medium the ∆Hₘ⁰ values were found negative while ∆Sₘ⁰ were found negative except at the highest studied temperature (323.15 K). The enthalpy-entropy compensation of both processes was also assessed and described clearly.
    Keywords Gibbs free energy ; enthalpy ; entropy ; polyvinyl alcohol ; separation ; sodium acetate ; sodium benzoate ; sodium chloride ; sodium dodecyl sulfate ; surfactants ; temperature ; water solubility ; PVA ; Micellization ; Cloud point ; Phase separation ; Thermodynamics
    Language English
    Dates of publication 2023-04
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.123761
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  9. Article ; Online: Physicochemical approaches reveal the impact of electrolytes and hydrotropic salt on micellization and phase separation behavior of polymer polyvinyl alcohol and surfactant mixture.

    Rather, Sami-Ullah / Rahman, Md Habibur / Bamufleh, Hisham S / Alhumade, Hesham / Taimoor, Aqeel Ahmad / Saeed, Usman / Sulaimon, Aliyu Adebayo / Alalayah, Walid M / Shariff, Azmi Mohd / Hoque, Md Anamul

    International journal of biological macromolecules

    2023  Volume 235, Page(s) 123761

    Abstract: The polymer-surfactant mixture has usages in numerous industries mainly in the production of daily used materials. Herein, the micellization and phase separation nature of the sodium dodecyl sulfate (SDS) and TX-100 along with a synthetic water-soluble ... ...

    Abstract The polymer-surfactant mixture has usages in numerous industries mainly in the production of daily used materials. Herein, the micellization and phase separation nature of the sodium dodecyl sulfate (SDS) and TX-100 along with a synthetic water-soluble polymer-polyvinyl alcohol (PVA) have been conducted using conductivity and cloud point (CP) measurement tools. In the case of micellization study of SDS + PVA mixture by conductivity method, the CMC values were obtained to be dependent on the categories and extent of additives as well as temperature variation. Both categories of studies were performed in aq. solutions of sodium chloride (NaCl), sodium acetate (NaOAc), and sodium benzoate (NaBenz) media. The CP values of TX 100 + PVA were decreased and enhanced in simple electrolytes and sodium benzoate media respectively. In all cases, the free energy changes of micellization (∆G
    MeSH term(s) Surface-Active Agents ; Sodium Chloride ; Polyvinyl Alcohol ; Polymers ; Sodium Benzoate ; Micelles ; Water
    Chemical Substances Surface-Active Agents ; Sodium Chloride (451W47IQ8X) ; Polyvinyl Alcohol (9002-89-5) ; Polymers ; Sodium Benzoate (OJ245FE5EU) ; Micelles ; polyethylene glycol monooctylphenyl ether ; Water (059QF0KO0R)
    Language English
    Publishing date 2023-02-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.123761
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  10. Article ; Online: Corrigendum to 'Prediction of carbon-dioxide activity coefficient for solubility in ionic liquids using multi-non-linear regression analysis', Chemosphere, 311, (2023), 1-10, 137102.

    Rather, Sami-Ullah / Shariff, Azmi M / Sulaimon, Aliyu Adebayo / Bamufleh, Hisham S / Qasim, Ali / Khan, Muhammad Saad / Alhumade, Hesham / Saeed, Usman / Alalayah, Walid M

    Chemosphere

    2023  Volume 315, Page(s) 137721

    Language English
    Publishing date 2023-01-10
    Publishing country England
    Document type Published Erratum
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2022.137721
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