Abstract: Two different carbons, namely CAS-P-500 and CRH-P-500, were prepared from apricot stones and rice husk by H3PO4-activation at 500 °C and H3PO4/precursor (wt/wt) impregnation ratio of 2:1 followed by water washing and desilication by NaOH solution respectively. Elemental analyses of both samples using X-ray fluorescence spectroscopy and VARIO ELEMENTAR III elemental analyzer detected up to 1% of remained phosphorus and about 88% of carbon. SEM characterization and nitrogen adsorption data revealed that highly mesoporous materials were obtained. According to BJH scheme calculations, N2 BET-surface area and pore volume for CAS-P-500 reached the values of 2030 m2/g and 1.64 cm3/g, while for CRH-P-500: 1690 m2/g and 1.95 cm3/g respectively. Activated carbons CAS-P-500 and CRH-P-500 were used as catalyst supports for the conversion of small amounts of benzene into cyclohexane to obtain cleaner gasoline. According to Euro-3 standards, gasoline should contain less than 1% of benzene, since the incomplete combustion of gasoline, which contains benzene, leads to formation of benzopyrene- a powerful carcinogen in exhaust gases. The activity of rhodium catalysts based on the CAS-P-500 and CRH-P-500 allow complete conversion of benzene into cyclohexane at 40 atm and 80 °C temperature and is comparable to those of based on conventional carbons: “Sibunit”, etc.

Cite: Zhandosov Z.M. , Mansurov Z.A. , Bijsenbaev M.A. , Ismagilov Z.R. , Shikina N.V. , Ismagilov I.Z. , Konuspaev S.R. , Shaymardan M.
Mesoporous Carbon-Based Rhodium Catalysts for Benzene Hydrogenation
Eurasian Chemico-Technological Journal. 2012. V.14. N1. P.37-40. DOI: 10.18321/ectj97 Scopus РИНЦ ANCAN OpenAlex

Files: Full text from publisher

Dates:

Submitted:	Aug 31, 2011
Published online:	Dec 15, 2011

Identifiers:

Scopus:	2-s2.0-84863550223
Elibrary:	20475479
Chemical Abstracts:	2012:1331783
Chemical Abstracts (print):	158:109040
OpenAlex:	W2232468517

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DB	Citing
Scopus	6
Elibrary	6
OpenAlex	6

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