
Mohsen KarimiUniversity of Porto | UP · Departamento de Engenharia Química
Mohsen Karimi
PhD in Chemical and Biological Engineering
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38
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Introduction
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Publications
Publications (38)
The growing rate of greenhouse gases (GHGs), especially CO2, related to human enterprises has been introduced as the main global challenge of 21st century. On the grounds, a significant attention has been devoted to reduce, control and utilize the GHGs. Among different considered strategies, considering biomass/biochar carbon materials as a sustain...
The increase of carbon dioxide emissions and the global warming consequences is today a considerable environmental concern. On the contrary, the rapid growth in the energy consumption throughout the world has exacerbated the CO2 emissions to the atmosphere. Accordingly, carbon capture sequestration and utilization have been considered as a potentia...
Rising adverse impact of climate change caused by anthropogenic activities is calling for advanced methods to reduce carbon dioxide emissions. Here, we review adsorption technologies for carbon dioxide capture with focus on materials, techniques, and processes, additive manufacturing, direct air capture, machine learning, life cycle assessment, com...
Heat capacity is among the most well‐known thermal properties of cellulosic biomass samples. This study assembles a general machine learning model to estimate the heat capacity of the cellulosic biomass samples with different origins. Combining the uncertainty and ranking analyses over 819 artificial intelligence models from seven different categor...
The persistent enhancement of greenhouse gases in the atmosphere originated from anthropogenic activities, especially CO2, resulted in several serious global challenges. In this way, employing biomass, biochar, etc., as a low-cost precursor for CO2 adsorbent is promising not only in the view of hydrophobic character and abundant resources, but also...
The screening of adsorbents (zeolites, MOFs, ACs, etc) requires the measurement of adsorption equilibria and kinetics at the milligram scale. In this regard, a volumetric apparatus (constant volume variable pressure – batch adsorber) has been developed for studying adsorption equilibria and kinetics of sorption. Its validation was accomplished by s...
Biomass has attracted significant interest as a renewable energy source recently. This study employs different artificial intelligence (AI) scenarios to determine biomass heat capacity (Cp). Cumulatively, 1025 experimental measurements for 25 different biomass types (block and powder forms) were utilized to design/identify the most accurate AI mode...
Biochar is recognized as a promising spectrum for thermal science applications considering environmental protection. In this study, different artificial intelligence (AI) techniques are employed to determine the heat capacity of biochar derived from pyrolysis of different biomass sources as a function of pyrolysis temperature, post-treatments proce...
Climate change has become one of the main challenges of 21st century, and the rising level of CO2 is considered as the main source of this problem. Although greenhouse gases such as methane and chlorofluorocarbons have a much greater effect than CO2, the latter is still responsible for 70% of global warming. In this way, carbon capture and storage...
Open-sided draft tubes provide an optimal gas distribution through a cross flow pattern between the spout and the annulus in conical spouted beds. The design, optimization, control, and scale-up of the spouted beds require precise information on operating and peak pressure drops. In this study, a multi-layer perceptron (MLP) neural network was empl...
Single and multi-component adsorption fixed bed breakthrough experiments of carbon dioxide (CO2), methane (CH4) and nitrogen (N2) on commercial binder-free beads of 4A zeolite have been studied at 313, 373, and 423 K and total pressure up to 5 bar. The ternary experiments (CO2/CH4/N2) show a practically complete separation of CO2 from CH4/N2 at all...
Recently, developing bio-based carbon materials due to the surface chemistry and a large spectrum of pore structures have received much attention. In the present work, a series of activated carbon (AC) adsorbents were synthesized from the compost derived by the mechanical/biological treatment of municipal solid wastes and evaluated regarding their...
The rising level of greenhouse gases emissions which has contributed to the global climate change is one of the major concerns of environmental advocates. In this regard, developing adsorbents from low cost and renewable resources is an attractive strategy. On the other hand, the high capacity of production rate of municipal solid waste, beside a l...
In this study, based on the scopes of CCS strategy and municipal solid waste management, a novel Integrated Environment Management (IEM) strategy has been proposed. In this way, the obtained compost in the mechanical biological treatment from municipal solid wastes has been considered as a source of adsorbents for CO2 capture. Three samples de-rive...
Moving bed reactors (MBRs) have been proposed as a significant progress in the reaction engineering area for performance improving and energy saving. Since its advent in 1890, the MBRs have attracted a wide acceptance in different industries, while it was firstly developed for the drying industries. The progress that this technology has passed durin...
In this study, recovery of Co(II) from aqueous solution by polymer inclusion membrane (PIM) composed of dinonylnaphthalene sulfonic acid (DNNSA) as the ion carrier, plasticized with four different plasticizers, and cellulose triacetate as the polymeric base was investigated. The membrane composition and aqueous phase parameters were considered, res...
The adsorption equilibrium and kinetics of CO2, CH4, and N2 on H‐BETA‐25, H‐BETA‐150 and Na‐BETA‐25 have been studied at 313, 373 and 423 K, and a partial pressure range up to 4.16 bar, from dynamic breakthrough experiments. The results showed the adsorbed amount follows the decreasing order as CO2 > CH4 > N2 for all studied materials, and the best...
The development of adsorption-based technologies for CO2 capture in the post-combustion processes requires finding materials with high capacity of adsorption and low cost of preparation. In this study, the modification of a commercial activated carbon (Norit ROX 0.8), considered as a solid adsorbent for CO2 capture, and the effects of different met...
In the recent years, more stringent environmental regulations as well as limitations of traditional energy sources being imposed lead to the development of new techniques to supply the required energy of different industries. Multifunctional auto‐thermal reactors as a novel strategy in the process integration (PI) technology have been introduced as...
Tapered fluidized bed with variable fluid velocity throughout the bed length is a special type of fluidized system. Accurate estimation of hydrodynamic characteristics of the tapered fluidized bed is required for adjusting the operational conditions, optimum design, and process control of this system. In this way, minimum fluidization velocity (Umf)...
According to the global requirements for energy saving and the control of global warming, multifunctional auto-thermal reactors as a novel concept in the process integration (PI) have risen up in the recent years. In the novel modification presented in this study, the required heat of endothermic naphtha reforming process has been supplied by nitro...
In recent years, more stringent environmental regulations as well as higher needs to enhancement of thermal efficiency of process being imposed on the chemical processes for development of new procedures to supply requirements of industries. Nowadays, natural gas is an attractive contributor to the world's energy needs, but unfortunately the presen...
Naphtha reforming is one of the most important processes in refineries in which high value-added reformate for gasoline pool and aromatics such as benzene, toluene, and xylene are produced. It is necessary to establish new naphtha reforming units and develop the traditional units to increase the efficiency of the processes. In this study, according...
In recent years, more stringent environmental regulations as well as higher needs to enhancement of thermal efficiency of process being imposed on the chemical processes for development of new procedures to supply requirements of industries. Nowadays, natural gas is an attractive contributor to the world's energy needs, but unfortunately the presen...
Advancements in the catalytic naphtha reforming process, as one of the main processes in petrochemical industry, contributed to development of continuous catalytic regenerative naphtha reformer units. Increasing the yield of aromatic and hydrogen as well as saving the energy in this process through the application of thermal coupling technique is a...
Naphtha reforming unit occupies a key position in refineries to obtain high octane gasoline and BTX (benzene, toluene, and xylene) components which are the basic substances of petrochemical industries. In this study, a novel thermally coupled reactor for continuous catalytic regenerative naphtha process has been proposed to boost the aromatics and...
Today, improving the performance of reformers by increasing the octane number of products has received more attention in refineries. In this regard, researchers have been looking for ways of increasing the content of high-octane number products such as aromatics. The present research proposes an alternative configuration for a conventional moving b...
The significance of the catalytic naphtha reforming process in the petroleum refining and petrochemical industry generates continuous evolution of the technology. These improvements would be observed in presenting more efficient reactor setups in order to improve production yield and operating conditions, as well as elucidating better kinetic and d...
The aim of this study is to model the solubilities of solid aromatic compounds in supercritical carbon dioxide (SCCO2) using feed-forward artificial neural network (ANN). Temperature, pressure, critical properties and acentric factor of each solute have been used as independent variables of ANN model. The parameters of multi-layer perceptron (MLP)...
Naphtha reforming is one of the most important processes in refineries in which high value-added reformate for gasoline pool and aromatics such as benzene, toluene, and xylene are produced. It is necessary to establish new naphtha reforming units and develop the traditional units to increase the efficiency of the processes. In this study, according...