Simulation studies of a vacuum and temperature swing adsorption process for the removal of VOC from waste air streams

“…The emission of VOCs has triggered increasing awareness focused on the development of abatement technologies to comply with the latest environmental regulations [3]. Traditional technologies for VOCs removal mainly include adsorption [4], thermal incineration [5], condensation [6] and infiltration [7] etc. All these technologies may have technical and/or economic disadvantages, hence, there is a motivation to develop method to control VOCs exhaust, which can be accepted both technically and economically [8].…”

Section: Introductionmentioning

confidence: 99%

Discharge characteristics and abatement of volatile organic compounds using plasma reactor packed with ceramic Raschig rings

Dou

Bin

Wang

et al. 2013

Journal of Electrostatics

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a b s t r a c tDischarge characteristics and abatement of volatile organic compounds using plasma reactor packed with ceramic Raschig rings were investigated. It was found that the gap equivalent capacitance decreased with increasing voltage while the dielectric barrier equivalent capacitance increased initially and stabilized at about 700 pF. Compared with empty reactor, toluene removal was significantly enhanced by ceramic Raschig rings, 97% against 48%. With respect to the energy yield in the presence of padding, the efficiency was remarkably improved up to 10 g/kWh, which was 2 times higher than that of 5 g/kWh in the absence of padding with removal ratio exceeding 50%.Crown

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“…Herry et al [29] have found similar heats of adsorption for ethanol (54.78 kJ/mol), 1-propanol (59.47 kJ/mol) and butanol (76.87 kJ/mol), while Nastaj et al [30] and Salame Bandosz [17] have found, 60.08 kJ/mol for the adsorption of 2-propanol and 55 kJ/mol for ethanol on AC. However, the heats of adsorption determined by microcalorimetric analysis which is an accurate tool were found to be close to those fond by TPAE method.…”

Section: Heats Of Adsorption Of Ox and Proh On Ac Under Adsorption Eqmentioning

confidence: 93%

Determination by Modeling of the Interactions during the Adsorption Equilibrium of N-Propanol and Ortho Xylene on Activated Carbon Surface

Hachimi¹

2014

J Chem Eng Process Technol

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Temperature Programmed Adsorption Equilibrium (TPAE) procedure was used to determine the heats of adsorption of ortho xylene and 1-propanol on activated carbon at 300 K. The evolutions of the surface coverage with the adsorption temperature (θ e =f(T a )) were compared to the Temkin model in order to determine the heats of adsorption and reveal the affinity to the surface of activated carbon regarding the polarity of each adsorbate. It has been shown that the heats of adsorption of ortho xylene were E θ0 =100 kJ/mol and E θ1 =62 kJ/mol at 185 Pa, respectively, at low and high surface coverage. Whereas the heats of adsorption of 1-propanol at the adsorption equilibrium was found to be dependent to the surface coverage with E θ0 =67 kJ/mol and E θ1 =58 kJ/mol at 475 Pa. It was shown that ortho-xylene molecules have more affinity to the activated carbon surface than 1-propanol regarding the difference in the heats of adsorption.

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Simulation studies of a vacuum and temperature swing adsorption process for the removal of VOC from waste air streams

Cited by 35 publications

References 7 publications

Technologies for the removal of phenol from fluid streams: A short review of recent developments

Technologies for the removal of phenol from fluid streams: A short review of recent developments

Discharge characteristics and abatement of volatile organic compounds using plasma reactor packed with ceramic Raschig rings

Determination by Modeling of the Interactions during the Adsorption Equilibrium of N-Propanol and Ortho Xylene on Activated Carbon Surface

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