Non-thermal plasma treatment of volatile organic compounds: A predictive model based on experimental data analysis

Abstract

Non-thermal plasma is an emerging alternative for removing VOC from polluted air streams. This technique has been studied in laboratory for more than twenty years and experimental data is abundant. However, mostly qualitative information has been obtained from that data and no model has been developed for predicting the treatment performance from a given set of parameters. In this paper, we establish such a model, based on experimental data extracted from 69 scientific publications. This model, obtained through a linear regression, uses both quantitative and qualitative variables to predict the energy yield of the treatment. In 80 % of the data points, the measured energy yield lies between 0.6 and 1.75 times the predicted value. We also used the model to evaluate quantitatively the impact of several parameters of the treatment, such as the initial concentration, the presence of a catalyst or the reactor type. Being so, the model presented here is an invaluable tool for both scientists and engineers interested in the treatment of VOC by non-thermal plasma.

Cooperative and Bifunctional Adsorbent‐Catalyst Materials for In‐situ VOCs Capture‐Conversion

“…NTP treatment involves the use of electrical discharges to produce plasma, which is a partially ionized gas that contains a high concentration of reactive species such as radicals, ions, and excited molecules. These reactive species can react with and degrade VOCs, breaking them down into less harmful compounds [198,199] . The advantages of NTP treatment for VOCs removal include its low operating temperature and pressure, which reduce the risk of thermal damage to the treated materials and minimize the potential for unwanted byproducts.…”

“…These reactive species can react with and degrade VOCs, breaking them down into less harmful compounds. [198,199] The advantages of NTP treatment for VOCs removal include its low operating temperature and pressure, which reduce the risk of thermal damage to the treated materials and minimize the potential for unwanted byproducts. NTP treatment can also be applied to a wide range of VOCs, including those that are difficult to remove using conventional methods.…”

Mn-Based Catalysts for Post Non-Thermal Plasma Catalytic Abatement of VOCs: A Review on Experiments, Simulations and Modeling

“…Liang and Li [148] established a semi-empirical model to predict the VOCs conversation in a plasma-enhanced catalysis system, and the results showed that the predicted results were in good agreement with the experimental results in terms of toluene conversion. Nóbrega et al [149] developed a linear regression model to predict the influence of the process parameters such as the initial VOCs concentration, flow rate, VOCs type, volume of the reactor, or the use of a catalyst on the performance of the VOCs decomposition process. Liu et al [150] reported that the neural network model can accurately simulate and predict the influence of gas flow rate, frequency, and power on the non-oxidative conversion of methane in a DBD reactor.…”

Effect of copper loading on synergism in CuO/CeO2 nanorod catalysts for toluene combustion

“…Moreover, the unique “relatively low temperature and high energy” property of NTP prevents catalyst agglomeration during the preparation process. 11 Our latest research 12 showed that after treatment by plasma, the synergistic effect of Cu–Ce in the catalyst was enhanced and more O va was produced. However, it is crucial to determine the optimal loading amount, as excessive or insufficient loading may hinder the Cu–Ce synergistic effect.…”