Comparison of a single grain activated carbon and column adsorption system

Hung Lung Chiang; Jiun Horng Tsai; Gen Mu Chang; Yi Chun Hsu

doi:10.1016/S0008-6223(02)00229-4

Comparison of a single grain activated carbon and column adsorption system

Hung Lung Chiang, Jiun Horng Tsai, Gen Mu Chang, Yi Chun Hsu

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Results from a single grain activated carbon adsorption study indicate that the effective diffusion coefficient was from 0.65×10^-6 to 7.4×10^-6 cm²/s for H₂S in the concentration range of 20-300 ppmv at 23°C for both virgin activated carbon (FAC) and impregnated-regenerative activated carbon (IRAC). The effective diffusivity of the IRAC was nearly two times the FAC for H₂S adsorption. The surface reaction of H₂S-impregnated regenerative activated carbon was faster than that of H₂S and virgin activated carbon. The single grain activated carbon kinetic curve and a time scale conversion method were used to predict the breakthrough curve and the adsorption capacity of the column adsorption system. The single grain activated carbon adsorption system measured the breakthrough curve more efficiently than column adsorption. The prediction error was between 10 and 30%. Improvement can be further achieved by enhanced experimental approaches. It has a great potential for scale-up.

Original language	English
Pages (from-to)	2921-2930
Number of pages	10
Journal	Carbon
Volume	40
Issue number	15
DOIs	https://doi.org/10.1016/S0008-6223(02)00229-4
Publication status	Published - 2002

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science

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10.1016/S0008-6223(02)00229-4

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title = "Comparison of a single grain activated carbon and column adsorption system",

abstract = "Results from a single grain activated carbon adsorption study indicate that the effective diffusion coefficient was from 0.65×10-6 to 7.4×10-6 cm2/s for H2S in the concentration range of 20-300 ppmv at 23°C for both virgin activated carbon (FAC) and impregnated-regenerative activated carbon (IRAC). The effective diffusivity of the IRAC was nearly two times the FAC for H2S adsorption. The surface reaction of H2S-impregnated regenerative activated carbon was faster than that of H2S and virgin activated carbon. The single grain activated carbon kinetic curve and a time scale conversion method were used to predict the breakthrough curve and the adsorption capacity of the column adsorption system. The single grain activated carbon adsorption system measured the breakthrough curve more efficiently than column adsorption. The prediction error was between 10 and 30%. Improvement can be further achieved by enhanced experimental approaches. It has a great potential for scale-up.",

author = "Chiang, {Hung Lung} and Tsai, {Jiun Horng} and Chang, {Gen Mu} and Hsu, {Yi Chun}",

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T1 - Comparison of a single grain activated carbon and column adsorption system

AU - Chiang, Hung Lung

AU - Tsai, Jiun Horng

AU - Chang, Gen Mu

AU - Hsu, Yi Chun

PY - 2002

Y1 - 2002

N2 - Results from a single grain activated carbon adsorption study indicate that the effective diffusion coefficient was from 0.65×10-6 to 7.4×10-6 cm2/s for H2S in the concentration range of 20-300 ppmv at 23°C for both virgin activated carbon (FAC) and impregnated-regenerative activated carbon (IRAC). The effective diffusivity of the IRAC was nearly two times the FAC for H2S adsorption. The surface reaction of H2S-impregnated regenerative activated carbon was faster than that of H2S and virgin activated carbon. The single grain activated carbon kinetic curve and a time scale conversion method were used to predict the breakthrough curve and the adsorption capacity of the column adsorption system. The single grain activated carbon adsorption system measured the breakthrough curve more efficiently than column adsorption. The prediction error was between 10 and 30%. Improvement can be further achieved by enhanced experimental approaches. It has a great potential for scale-up.

AB - Results from a single grain activated carbon adsorption study indicate that the effective diffusion coefficient was from 0.65×10-6 to 7.4×10-6 cm2/s for H2S in the concentration range of 20-300 ppmv at 23°C for both virgin activated carbon (FAC) and impregnated-regenerative activated carbon (IRAC). The effective diffusivity of the IRAC was nearly two times the FAC for H2S adsorption. The surface reaction of H2S-impregnated regenerative activated carbon was faster than that of H2S and virgin activated carbon. The single grain activated carbon kinetic curve and a time scale conversion method were used to predict the breakthrough curve and the adsorption capacity of the column adsorption system. The single grain activated carbon adsorption system measured the breakthrough curve more efficiently than column adsorption. The prediction error was between 10 and 30%. Improvement can be further achieved by enhanced experimental approaches. It has a great potential for scale-up.

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VL - 40

SP - 2921

EP - 2930

JO - Carbon

JF - Carbon

IS - 15

ER -

Comparison of a single grain activated carbon and column adsorption system

Abstract

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