e-journal

Effects of chemical modification of petroleum cokes on the properties of the resulting activated carbon

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Abstract
Activated carbons have been prepared from petroleum cokes by the combination of a chemical treatment with HClO4 or H2O2 and a chemical activation with KOH at a constant KOH/coke ratio of 3/1. The influence of different chemical treatments on the properties of the activated carbon precursors and final carbons activated with KOH was invested by using XRD, FTIR, and BET techniques. XRD results indicated that the value of interplanar distance d002 increased by chemical treatment and the disappearance of the peak corresponding to 002 faces correlated to high specific surface area. FTIR studies showed that chemical modification promoted the formation of surface oxygen functionalities. Significant effects on BET surface area, pore texture and iodine adsorption capacity were evidenced. The results show that chemical modification prior to activation dramatically increased the BET surface area and total pore volume of the
resulting activated carbon. Modified petroleum coke based activated carbon with chemical activation had higher specific surface area (2336 m2/g) and better iodine adsorption value (1998 mg/g).
Keywords: Chemical modification; Petroleum coke; Activated carbon

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Informasi Detail

Judul Seri

Fuel

No. Panggil

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Penerbit

: Elsevier Ltd. All rights reserved., 2007

Deskripsi Fisik

Fuel 87 (2008) 1844–1848

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

Lampiran Berkas

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