Hydrogenation of liquid natural rubber using selenium-catalyzed system

Nur Aidasyakirah Mohd Tahir, Mohamad Shahrul Fizree Idris, Muhammad Jefri Mohd Yusof, Siti Fairus Mohd Yusoff

Research output: Contribution to journalArticle

Abstract

Response surface methodology (RSM) with central composite rotatable design (CCRD) was used to optimize the hydrogenation parameters of liquid natural rubber (LNR) in hydrazine hydrate (HH) and hydrogen peroxide (H2O2) system in the presence of selenium as catalyst. The parameters studied in this research were the mole ratio of HH:LNR (1.25-2.25), mole ratio of H2O2:LNR (1.25-2.25), reaction temperature (40-80°C) and reaction time (4-8 h). Based on the data obtained, hydrogenation of LNR fit the quadratic model. This quadratic model had the determination coefficient (R2) of 0.9596 that showed high correlation between the actual hydrogenation percentages and the predicted percentages. Based on the 3D surface plot, the reaction temperature played an important role in the hydrogenation of LNR. The optimum conditions for hydrogenation of LNR in hydrazine hydrate/hydrogen peroxide system in the presence of selenium catalyst were as follows: mole ratio of HH:LNR of 1.50, mole ratio of H2O2:LNR of 2.00, reaction temperature of 53.34°C and reaction time of 5.21 h that yielded 68.98% of hydrogenated product. Quadratic polynomial equation that was obtained from RSM is useful in preparing HLNR with desired hydrogenation percentages.

Translated title of the contributionHydrogenation of liquid natural rubber using selenium-catalyzed system
Original languageMalay
Pages (from-to)2073-2082
Number of pages10
JournalSains Malaysiana
Volume47
Issue number9
DOIs
Publication statusPublished - 1 Jan 2018

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hydrazine
Rubber
Selenium
Hydrogenation
Liquids
Hydrogen Peroxide
Catalysts
Temperature
Polynomials
Composite materials

Keywords

    ASJC Scopus subject areas

    • General

    Cite this

    Penghidrogenan getah asli cecair menggunakan sistem mangkin selenium. / Tahir, Nur Aidasyakirah Mohd; Idris, Mohamad Shahrul Fizree; Yusof, Muhammad Jefri Mohd; Mohd Yusoff, Siti Fairus.

    In: Sains Malaysiana, Vol. 47, No. 9, 01.01.2018, p. 2073-2082.

    Research output: Contribution to journalArticle

    Tahir, Nur Aidasyakirah Mohd ; Idris, Mohamad Shahrul Fizree ; Yusof, Muhammad Jefri Mohd ; Mohd Yusoff, Siti Fairus. / Penghidrogenan getah asli cecair menggunakan sistem mangkin selenium. In: Sains Malaysiana. 2018 ; Vol. 47, No. 9. pp. 2073-2082.
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    abstract = "Response surface methodology (RSM) with central composite rotatable design (CCRD) was used to optimize the hydrogenation parameters of liquid natural rubber (LNR) in hydrazine hydrate (HH) and hydrogen peroxide (H2O2) system in the presence of selenium as catalyst. The parameters studied in this research were the mole ratio of HH:LNR (1.25-2.25), mole ratio of H2O2:LNR (1.25-2.25), reaction temperature (40-80°C) and reaction time (4-8 h). Based on the data obtained, hydrogenation of LNR fit the quadratic model. This quadratic model had the determination coefficient (R2) of 0.9596 that showed high correlation between the actual hydrogenation percentages and the predicted percentages. Based on the 3D surface plot, the reaction temperature played an important role in the hydrogenation of LNR. The optimum conditions for hydrogenation of LNR in hydrazine hydrate/hydrogen peroxide system in the presence of selenium catalyst were as follows: mole ratio of HH:LNR of 1.50, mole ratio of H2O2:LNR of 2.00, reaction temperature of 53.34°C and reaction time of 5.21 h that yielded 68.98{\%} of hydrogenated product. Quadratic polynomial equation that was obtained from RSM is useful in preparing HLNR with desired hydrogenation percentages.",
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    AU - Yusof, Muhammad Jefri Mohd

    AU - Mohd Yusoff, Siti Fairus

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    AB - Response surface methodology (RSM) with central composite rotatable design (CCRD) was used to optimize the hydrogenation parameters of liquid natural rubber (LNR) in hydrazine hydrate (HH) and hydrogen peroxide (H2O2) system in the presence of selenium as catalyst. The parameters studied in this research were the mole ratio of HH:LNR (1.25-2.25), mole ratio of H2O2:LNR (1.25-2.25), reaction temperature (40-80°C) and reaction time (4-8 h). Based on the data obtained, hydrogenation of LNR fit the quadratic model. This quadratic model had the determination coefficient (R2) of 0.9596 that showed high correlation between the actual hydrogenation percentages and the predicted percentages. Based on the 3D surface plot, the reaction temperature played an important role in the hydrogenation of LNR. The optimum conditions for hydrogenation of LNR in hydrazine hydrate/hydrogen peroxide system in the presence of selenium catalyst were as follows: mole ratio of HH:LNR of 1.50, mole ratio of H2O2:LNR of 2.00, reaction temperature of 53.34°C and reaction time of 5.21 h that yielded 68.98% of hydrogenated product. Quadratic polynomial equation that was obtained from RSM is useful in preparing HLNR with desired hydrogenation percentages.

    KW - Central composite rotatable design (CCRD)

    KW - Hydrogenation

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