Denitrogenation by adsorption of pyridine on ni/support adsorbents

Cecilia Peralta; Esteban Camú; R. Bassi; Mirza Villarroel; Juan Ojeda; Patricio Baeza

doi:10.4067/S0717-97072016000400012

Denitrogenation by adsorption of pyridine on ni/support adsorbents

Cecilia Peralta, Esteban Camú, R. Bassi, Mirza Villarroel, Juan Ojeda, Patricio Baeza

INSTITUTE OF CHEMISTRY

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Abstract

In this work we have carried out the adsorption of pyridine using three different supports (activated carbon, SiO₂ and γ-Al₂O₃). After choosing the best support, due to its higher adsorption capacity, we have impregnated the support with nickel at three different concentrations (2, 4 and 6% w/w) by wet impregnation to study the adsorption of pyridine by π-complexation. All the samples (supports and adsorbents) were characterized by N2 adsorption-desorption by the BET method and electrophoretic migration. The experimental results, for the three different supports, show that the adsorption capacity is better for γ-Al₂O₃, due to its higher isoelectric point. With the incorporation of nickel, no better adsorption capacities are observed, due that the nickel incorporation diminish the zero point charges of the adsorbents.

Original language	English
Pages (from-to)	3211-3213
Number of pages	3
Journal	Journal of the Chilean Chemical Society
Volume	61
Issue number	4
DOIs	https://doi.org/10.4067/S0717-97072016000400012
State	Published - 2016

Keywords

Adsorption
Denitrogenation
Nickel
Pyridine

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10.4067/S0717-97072016000400012

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title = "Denitrogenation by adsorption of pyridine on ni/support adsorbents",

abstract = "In this work we have carried out the adsorption of pyridine using three different supports (activated carbon, SiO2 and γ-Al2O3). After choosing the best support, due to its higher adsorption capacity, we have impregnated the support with nickel at three different concentrations (2, 4 and 6% w/w) by wet impregnation to study the adsorption of pyridine by π-complexation. All the samples (supports and adsorbents) were characterized by N2 adsorption-desorption by the BET method and electrophoretic migration. The experimental results, for the three different supports, show that the adsorption capacity is better for γ-Al2O3, due to its higher isoelectric point. With the incorporation of nickel, no better adsorption capacities are observed, due that the nickel incorporation diminish the zero point charges of the adsorbents.",

keywords = "Adsorption, Denitrogenation, Nickel, Pyridine",

author = "Cecilia Peralta and Esteban Cam{\'u} and R. Bassi and Mirza Villarroel and Juan Ojeda and Patricio Baeza",

note = "Funding Information: The authors are grateful to the Chilean government for financial support from CONICYT through FONDECYT grant 1140808.",

year = "2016",

doi = "10.4067/S0717-97072016000400012",

language = "English",

volume = "61",

pages = "3211--3213",

journal = "Journal of the Chilean Chemical Society",

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publisher = "Sociedad Chilena De Quimica",

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TY - JOUR

T1 - Denitrogenation by adsorption of pyridine on ni/support adsorbents

AU - Peralta, Cecilia

AU - Camú, Esteban

AU - Bassi, R.

AU - Villarroel, Mirza

AU - Ojeda, Juan

AU - Baeza, Patricio

N1 - Funding Information: The authors are grateful to the Chilean government for financial support from CONICYT through FONDECYT grant 1140808.

PY - 2016

Y1 - 2016

N2 - In this work we have carried out the adsorption of pyridine using three different supports (activated carbon, SiO2 and γ-Al2O3). After choosing the best support, due to its higher adsorption capacity, we have impregnated the support with nickel at three different concentrations (2, 4 and 6% w/w) by wet impregnation to study the adsorption of pyridine by π-complexation. All the samples (supports and adsorbents) were characterized by N2 adsorption-desorption by the BET method and electrophoretic migration. The experimental results, for the three different supports, show that the adsorption capacity is better for γ-Al2O3, due to its higher isoelectric point. With the incorporation of nickel, no better adsorption capacities are observed, due that the nickel incorporation diminish the zero point charges of the adsorbents.

AB - In this work we have carried out the adsorption of pyridine using three different supports (activated carbon, SiO2 and γ-Al2O3). After choosing the best support, due to its higher adsorption capacity, we have impregnated the support with nickel at three different concentrations (2, 4 and 6% w/w) by wet impregnation to study the adsorption of pyridine by π-complexation. All the samples (supports and adsorbents) were characterized by N2 adsorption-desorption by the BET method and electrophoretic migration. The experimental results, for the three different supports, show that the adsorption capacity is better for γ-Al2O3, due to its higher isoelectric point. With the incorporation of nickel, no better adsorption capacities are observed, due that the nickel incorporation diminish the zero point charges of the adsorbents.

KW - Adsorption

KW - Denitrogenation

KW - Nickel

KW - Pyridine

UR - http://www.scopus.com/inward/record.url?scp=85010379966&partnerID=8YFLogxK

U2 - 10.4067/S0717-97072016000400012

DO - 10.4067/S0717-97072016000400012

M3 - Article

AN - SCOPUS:85010379966

SN - 0717-9324

VL - 61

SP - 3211

EP - 3213

JO - Journal of the Chilean Chemical Society

JF - Journal of the Chilean Chemical Society

IS - 4

ER -

Denitrogenation by adsorption of pyridine on ni/support adsorbents

Abstract

Keywords

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