Experimental and simulation study of hydrogen sulfide adsorption on impregnated activated carbon under anaerobic conditions

Xiao, Yonghou; Wang, Shudong; Wu, Diyong; Yuan, Quan

doi:10.1016/j.jhazmat.2007.09.081

Cited by 128 publications

(91 citation statements)

References 35 publications

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“…Similarly, Choo et al has found that higher concentration yields enhanced driving force along the pores, resulting in higher adsorption capacity [32]. However, Xiao et al have shown that the effect of concentration is lower [13]. The contact time affects the adsorption capacity as well.…”

Section: Adsorption Kinetic Modelsmentioning

confidence: 99%

“…Adsorption is a physio-chemical technique, involving mass transfer between the liquid and the solid phase [12]. A considerable amount of literatures detailing on the removal of H 2 S have been published [13][14][15]. These studies have reported that the adsorption rate of H 2 S is affected by many factors such as surface area of adsorbent, pore size, moisture content, pH, and surface chemistry (oxygen containing functionalities).…”

Section: Introductionmentioning

confidence: 99%

“…These studies have reported that the adsorption rate of H 2 S is affected by many factors such as surface area of adsorbent, pore size, moisture content, pH, and surface chemistry (oxygen containing functionalities). The experimental and simulation study detailing on H 2 S adsorption on impregnated activated carbon under an anaerobic condition has been carried out by Xiao et al [13]. They have applied a sodium carbonate impregnated activated carbon as the adsorbent for low concentration H 2 S in nitrogen under the anaerobic condition in a fixed bed [13].…”

Section: Introductionmentioning

confidence: 99%

“…The experimental and simulation study detailing on H 2 S adsorption on impregnated activated carbon under an anaerobic condition has been carried out by Xiao et al [13]. They have applied a sodium carbonate impregnated activated carbon as the adsorbent for low concentration H 2 S in nitrogen under the anaerobic condition in a fixed bed [13]. Moreover, sludge-derived H 2 S adsorbents have received considerable attentions from the galvanizing industry [14].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Isothermal Modelling Based Experimental Study of Dissolved Hydrogen Sulfide Adsorption From Waste Water Using Eggshell Based Activated Carbon

Habeeb¹,

Ramesh²,

Ali³

et al. 2017

MJAS

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This paper reports on the experimental work using batch process conducted to determine the adsorption capacity of dissolved hydrogen sulfide in the synthetic wastewater onto the activated carbon which is derived from the eggshell. Fourier Transform Infrared Spectroscopy (FTIR), Energy-Dispersive X-ray Spectroscopy (EDX), Scanning Electron Microscopy (SEM), and particle size distribution have been used to characterize the prepared material. The raw materials of chicken eggshell are adopted to retrieve the carbon content which is then activated using KOH as the activation agent. The examined concentration of dissolved hydrogen sulfide is ranging from 100 to 500 ppm. The maximum adsorption capacity of the dissolved H 2 S onto the activated carbon is 289.3 mg/g and the equilibrium time is 6 hours. The examined pH value in this study is ranging from 4.5 to 5.5. The two well-known equilibrium adsorption isotherm models, i.e. the Langmuir and the Freundlich models, are employed. It is found that the adsorption isotherm capacity agrees very well to the Freundlich isotherm model. This paper attempts to show the difficulties of converting CaCO 3 to carbon due to the fact that the raw material contains higher calcium (Ca) content instead of carbon. It is concluded that the carbon derived from the chickens' eggshells is very beneficial for treatment of dissolved H 2 S in waste water. Keywords: adsorption, hydrogen sulfide, chicken eggshells, activated carbon, isotherm AbstrakKajian ini melaporkan mengenai kerja eksperimen menggunakan proses kelompok yang dijalankan untuk menentukan kapasiti penjerapan hidrogen sulfida terlarut dalam air sisa sintetik ke dalam karbon yang diaktifkan dihasilkan daripada kulit telur. Spektroskopi Inframerah Fourier (FTIR), Spektroskopi X-ray Tenaga Serakan (EDX), Mikroskop Imbasan Elektron (SEM), dan taburan saiz zarah telah digunakan untuk mencirikan bahan yang disediakan. Kulit telur ayam sebagai bahan mentah telah digunakan untuk mendapatkan semula kandungan karbon yang kemudiannya diaktifkan dengan menggunakan KOH sebagai agen pengaktifan. Julat kepekatan hidrogen sulfida yang diperiksa adalah di antara 100 hingga 500 ppm. Kapasiti penjerapan maksimum H 2 S terlarut ke dalam karbon diaktifkan adalah 289.3 mg/g dan masa keseimbangan selama 6 jam. Julat nilai pH yang diperiksa dalam kajian ini di antara 4.5 hingga 5.5. Kedua-dua model penjerapan isoterma keseimbangan terkenal seperti model Freundlich dan Langmuir telah dilaksanakan. Kapasiti penjerapan isoterma didapati selari dengan model isoterma Langmuir. Kajian ini cuba menunjukkan kesukaran untuk menukar CaCO 3 kepada karbon disebabkan oleh bahan mentah

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Section: Adsorption Kinetic Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Isothermal Modelling Based Experimental Study of Dissolved Hydrogen Sulfide Adsorption From Waste Water Using Eggshell Based Activated Carbon

Habeeb¹,

Ramesh²,

Ali³

et al. 2017

MJAS

View full text Add to dashboard Cite

show abstract

“…Currently the two most frequently used methods for reducing the amounts of H 2 S emitted are biological treatments and chemical scrubbing. 1 But there is an increasing body of research [2][3][4][5][6][7][8][9][10] devoted to investigate the ability of different materials to adsorb H 2 S. One set of studied materials is formed by Metal-Organic Frameworks 11,12 (MOFs), which have a wide range of properties in terms of adsorption, since they are structures with a variety of metal centres (Cu, Zn, Ti, etc), of pore sizes (large, medium or small) or even of framework flexibility. [13][14][15] In this study we will focus on the study of H 2 S adsorption on three well known MOFs, namely Cu-BTC, MIL-47, and IRMOF-1.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of hydrogen sulphide on Metal-Organic Frameworks

et al. 2013

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Three new sets of interatomic potentials to model hydrogen sulphide (H 2 S) have been fitted. One of them is a 3-sites potential (which we named 3S) and the other two are 5-sites potentials (which we named 5S and 5Sd). The molecular dipole of the 3S and 5S potentials is 1.43 D, which is the value usually employed for H 2 S potentials, while the dipole of the 5Sd is the dipole measured experimentally for the H 2 S molecule, circa 0.974 D. The interatomic potentials parameters were obtained by fitting the experimental vapourliquid equilibrium, vapour pressure and liquid density curves. The potential parameters fitted so far for H 2 S have been obtained applying long-range corrections to the Lennard-Jones energy. For that reason, when a cut and shift of the Lennard-Jones potentials is applied they do not yield the correct results. We employed a cut and shift of the Lennard-Jones potentials in the fitting procedure, which facilitates the use of the new potentials to model H 2 S adsorption on systems such as Metal-Organics Frameworks (MOFs). We have employed the newly developed potentials to study the adsorption of H 2 S on Cu-BTC, MIL-47 and IRMOF-1 and the results agree with the available electronic structures calculations. All calculations (both quantum and interatomic potential-based) predict that H 2 S does not bind to the Cu atoms in Cu-BTC.

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Cost‐Effective Adsorption of Oxidative Coupling‐Derived Ethylene Using a Molecular Sieve

et al. 2021

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The adsorption of ethylene (C 2 H 4 ) from a mixture simulating the products obtained during the oxidative coupling of CH 4 using a commercial molecular sieve (MOS) is investigated. A joint experimental and theoretical approach has been employed. The adsorbent's trapping capacity decreases at higher temperatures, while the breakpoint time drops when the inlet C 2 H 4 concentration increases. The Dubinin-Radushkevich isotherm model can better describe the adsorption of C 2 H 4 onto the MOS. Pore diffusion is the rate-determining step given that the Bangham's kinetic model was the more suitable for this adsorption process. Finally, the low activation energy obtained corroborates the predominance of physical adsorption.

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Experimental and simulation study of hydrogen sulfide adsorption on impregnated activated carbon under anaerobic conditions

Cited by 128 publications

References 35 publications

Isothermal Modelling Based Experimental Study of Dissolved Hydrogen Sulfide Adsorption From Waste Water Using Eggshell Based Activated Carbon

Isothermal Modelling Based Experimental Study of Dissolved Hydrogen Sulfide Adsorption From Waste Water Using Eggshell Based Activated Carbon

Adsorption of hydrogen sulphide on Metal-Organic Frameworks

Cost‐Effective Adsorption of Oxidative Coupling‐Derived Ethylene Using a Molecular Sieve

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