The Experts below are selected from a list of 660 Experts worldwide ranked by ideXlab platform
Jesse Thompson - One of the best experts on this subject based on the ideXlab platform.
-
Use of Carbon Steel for Construction of Post-combustion CO2 Capture Facilities: A Pilot-Scale Corrosion Study
Industrial & Engineering Chemistry Research, 2017Co-Authors: James Landon, Bradley David Irvin, Liangfu Zheng, Jonathan Pelgen, Jose D. Figueroa, David Link, Liang Kong, Jesse ThompsonAbstract:Corrosion studies were carried out on metal coated and noncoated carbon steel as well as stainless steel in a pilot-scale post-combustion CO2 capture process. Aqueous 30 wt % monoethanolAmine (MEA) solvent was used without any chemical additive for antioxidation to exAmine a worst-case scenario where corrosion is not mitigated. The corrosion rate of all carbon steels was almost zero in the absorber column and CO2 Lean Amine piping except for Ni-coated carbon steel (
-
use of carbon steel for construction of post combustion co2 capture facilities a pilot scale corrosion study
Industrial & Engineering Chemistry Research, 2017Co-Authors: James Landon, Liangfu Zheng, Jonathan Pelgen, Jose D. Figueroa, David Link, Jesse Thompson, Liang Kong, Bradley Irvin, K Ruh, Heather NikolicAbstract:Corrosion studies were carried out on metal coated and noncoated carbon steel as well as stainless steel in a pilot-scale post-combustion CO2 capture process. Aqueous 30 wt % monoethanolAmine (MEA) solvent was used without any chemical additive for antioxidation to exAmine a worst-case scenario where corrosion is not mitigated. The corrosion rate of all carbon steels was almost zero in the absorber column and CO2 Lean Amine piping except for Ni-coated carbon steel (<1.8 mm/yr). Ni2Al3/Al2O3 precoated carbon steels showed initial protection but lost their integrity in the stripping column and CO2 rich Amine piping, and severe corrosion was eventually observed for all carbon steels at these two locations. Stainless steel was found to be stable and corrosion resistant in all of the sampling locations throughout the experiment. This study provides an initial framework for the use of carbon steel as a potential construction material for process units with relatively mild operating conditions (temperature less ...
James Landon - One of the best experts on this subject based on the ideXlab platform.
-
Use of Carbon Steel for Construction of Post-combustion CO2 Capture Facilities: A Pilot-Scale Corrosion Study
Industrial & Engineering Chemistry Research, 2017Co-Authors: James Landon, Bradley David Irvin, Liangfu Zheng, Jonathan Pelgen, Jose D. Figueroa, David Link, Liang Kong, Jesse ThompsonAbstract:Corrosion studies were carried out on metal coated and noncoated carbon steel as well as stainless steel in a pilot-scale post-combustion CO2 capture process. Aqueous 30 wt % monoethanolAmine (MEA) solvent was used without any chemical additive for antioxidation to exAmine a worst-case scenario where corrosion is not mitigated. The corrosion rate of all carbon steels was almost zero in the absorber column and CO2 Lean Amine piping except for Ni-coated carbon steel (
-
use of carbon steel for construction of post combustion co2 capture facilities a pilot scale corrosion study
Industrial & Engineering Chemistry Research, 2017Co-Authors: James Landon, Liangfu Zheng, Jonathan Pelgen, Jose D. Figueroa, David Link, Jesse Thompson, Liang Kong, Bradley Irvin, K Ruh, Heather NikolicAbstract:Corrosion studies were carried out on metal coated and noncoated carbon steel as well as stainless steel in a pilot-scale post-combustion CO2 capture process. Aqueous 30 wt % monoethanolAmine (MEA) solvent was used without any chemical additive for antioxidation to exAmine a worst-case scenario where corrosion is not mitigated. The corrosion rate of all carbon steels was almost zero in the absorber column and CO2 Lean Amine piping except for Ni-coated carbon steel (<1.8 mm/yr). Ni2Al3/Al2O3 precoated carbon steels showed initial protection but lost their integrity in the stripping column and CO2 rich Amine piping, and severe corrosion was eventually observed for all carbon steels at these two locations. Stainless steel was found to be stable and corrosion resistant in all of the sampling locations throughout the experiment. This study provides an initial framework for the use of carbon steel as a potential construction material for process units with relatively mild operating conditions (temperature less ...
Abdukarem Amhamed - One of the best experts on this subject based on the ideXlab platform.
-
enhancing gas loading and reducing energy consumption in acid gas removal systems a simulation study based on real ngl plant data
Journal of Natural Gas Science and Engineering, 2017Co-Authors: Ahmed Abotaleb, Muftah H Elnaas, Abdukarem AmhamedAbstract:Abstract Amine scrubbing with absorption and desorption is the most established technology for Acid Gas Removal (AGR) systems, but suffers from high regeneration energy requirements and, hence offers a good opportunity for more development. A simulation study has been carried out based on a local NGL plant data to evaluate the performance parameters for AGR systems along with energy and utility consumptions for all single alkanolAmines (Primary, Secondary and Tertiary) as well as the MDEA/PZ Amine blend with different concentrations. The ultimate aim of the study is to address the critical industrial limitations in AGR systems, understand the individual performance for each Amine under the same conditions and to investigate the Benchmark Amine blend (MDEA + PZ) to optimize the absorption process in terms of enhancing acid gas loading and lowering the regeneration energy consumption. Ten cases have been investigated under the same conditions, where MDEA/PZ with 20/10 wt% has shown a better performance among single Amines and benchmark Amine blend 29/1 wt%; it could save 8% in steam consumption, 45% in cooling water, 62% in Lean Amine Air cooler, 45% in pumping power and 38% in solvent circulation rate, in addition to enhancing acid gas absorption by 67%.
-
enhancing gas loading and reducing energy consumption in acid gas removal systems a simulation study based on real ngl plant data
Journal of Natural Gas Science and Engineering, 2017Co-Authors: Ahmed Abotaleb, Muftah H Elnaas, Abdukarem AmhamedAbstract:Abstract Amine scrubbing with absorption and desorption is the most established technology for Acid Gas Removal (AGR) systems, but suffers from high regeneration energy requirements and, hence offers a good opportunity for more development. A simulation study has been carried out based on a local NGL plant data to evaluate the performance parameters for AGR systems along with energy and utility consumptions for all single alkanolAmines (Primary, Secondary and Tertiary) as well as the MDEA/PZ Amine blend with different concentrations. The ultimate aim of the study is to address the critical industrial limitations in AGR systems, understand the individual performance for each Amine under the same conditions and to investigate the Benchmark Amine blend (MDEA + PZ) to optimize the absorption process in terms of enhancing acid gas loading and lowering the regeneration energy consumption. Ten cases have been investigated under the same conditions, where MDEA/PZ with 20/10 wt% has shown a better performance among single Amines and benchmark Amine blend 29/1 wt%; it could save 8% in steam consumption, 45% in cooling water, 62% in Lean Amine Air cooler, 45% in pumping power and 38% in solvent circulation rate, in addition to enhancing acid gas absorption by 67%.
Heather Nikolic - One of the best experts on this subject based on the ideXlab platform.
-
use of carbon steel for construction of post combustion co2 capture facilities a pilot scale corrosion study
Industrial & Engineering Chemistry Research, 2017Co-Authors: James Landon, Liangfu Zheng, Jonathan Pelgen, Jose D. Figueroa, David Link, Jesse Thompson, Liang Kong, Bradley Irvin, K Ruh, Heather NikolicAbstract:Corrosion studies were carried out on metal coated and noncoated carbon steel as well as stainless steel in a pilot-scale post-combustion CO2 capture process. Aqueous 30 wt % monoethanolAmine (MEA) solvent was used without any chemical additive for antioxidation to exAmine a worst-case scenario where corrosion is not mitigated. The corrosion rate of all carbon steels was almost zero in the absorber column and CO2 Lean Amine piping except for Ni-coated carbon steel (<1.8 mm/yr). Ni2Al3/Al2O3 precoated carbon steels showed initial protection but lost their integrity in the stripping column and CO2 rich Amine piping, and severe corrosion was eventually observed for all carbon steels at these two locations. Stainless steel was found to be stable and corrosion resistant in all of the sampling locations throughout the experiment. This study provides an initial framework for the use of carbon steel as a potential construction material for process units with relatively mild operating conditions (temperature less ...
Fawzi Banat - One of the best experts on this subject based on the ideXlab platform.
-
a quest for electrode materials heat stable salts removal from industrial Lean Amine solution via electro sorption
Materials Research Express, 2019Co-Authors: Abdul Hai, Jerina Hisham Zain, Akhil Mammoottil Abraham, Mohammed Aboukhousa, Fawzi BanatAbstract:The accumulation of heat stable salts (HSS) can cause deterioration performance of gas treatment Amine units. In this work, electro-sorption batch experiments using different electrodes such as copper, stainless steel, aluminum foil, platinized coated titanium and nickel foam were conducted for the removal of HSS from industrial Lean methyldiethanolAmine (MDEA) solutions. Initially, salt removal was exAmined by using copper electrodes in two different configurations: inside and outside the designed cell i.e. by direct and indirect contact with the Lean Amine. It was found that copper electrode outside the cell has zero impact on HSS removal and hence all the electrodes were tested in a direct contact electrochemical cell. It was observed that the applied voltage has a significant role on HSS removal and should be adjusted according to the nature of electrode materials in order to achieve maximum separation and also to avoid catalysis. Different experiments were carried out by varying electrode materials and electric potential. Nickle foam (Ni) and platinized (Pt) coated titanium (Ti) showed the maximum HSS removal of 6.5% and 9.6% at a voltage of 0.8V and 1.2V respectively, while naked and modified SS 316 L has zero or negative impact on HSS removal. The electrochemical characteristics such as areal capacitance, cyclic voltammetry and its effect on scan rate for nickel and Pt coated Ti electrode was investigated. The effect of magnetic field and its direction was also analyzed by applying a magnetic force of 1 Tesla on the best electrode so far found (Pt coated Ti) and observed that in a batch mode of operation, the magnetic field cannot enhance the HSS removal efficiency.
-
a novel rectangular assembly for heat stable salts removal from industrial Lean Amine effect of operational parameters
International Journal of Greenhouse Gas Control, 2019Co-Authors: Jerina Hisham Zain, Mohammed Aboukhousa, Jimoh Oladunni, Fawzi BanatAbstract:Abstract Heat stable salts (HSS) formed in gas sweetening units pose many challenges such as foaming, corrosion and equipment fouling. In this work, we designed a novel electromagnetic (EM) setup which aids the removal of HSS from MDEA without degrading Amine and producing secondary waste. Total organic acid (TOA) was taken as a model pollutant to represent HSS ions. TOA was successfully removed by employing electromagnetic forces based on the Lorentz principle, using rectangular setup having parallel electrodes. The direction of the electric field will be perpendicular to the flow path along the channel to enhance the separation of ions at the outlet. In the flow cell, we investigated the effect of voltage, flow rate and magnet position on the removal efficiency and found optimal operating conditions to be at an applied potential of 3 V, the flow rate of 2 mL/min and 1T magnets placed parallel to fluid flow. The experimental results showed that the introduction of electromagnetic forces led to the electrosorption of ions onto the surface of the aluminum electrode whereas polarization occurred when only the electrical field was used. The HSS removal rate with magnets and without magnets in the parallel flow cell was 7.8% and 3.2% respectively.
-
capacitive deionization performance of cnts si ag based electrodes for the removal of heat stable salts from methyldiethanolAmine mdea solution in natural gas sweetening units
Chemical Engineering Journal, 2019Co-Authors: Naman Arora, Fawzi Banat, Emad AlhseinatAbstract:Abstract The presence of heat stable salts (HSS) in the gas sweetening absorption columns reduces the absorption capacity of the Amine solutions. For the first time, the capacitive deionization (CDI) technique is used to cLean the MDEA solutions from HSS. For this purpose, the hybrid material (CNTs-Si-Ag) was synthesized by using the sol–gel process followed by chemical reduction. This hybrid material was then utilized as CDI electrode material in order to remove the HSS from the Lean Amine solutions. TEM and SEM confirmed the well-ordered interconnected porous network containing silanized CNTs (carbon nanotubes) along with silver (Ag) nanoparticles. Nitrogen adsorption–desorption analysis and electrochemical studies (EIS and CV) evidenced the substantial conductivity, porosity, surface area and specific capacitance of the prepared material. The specific capacitance of the hybrid material was found to be 149.1 F g−1 at 10 mV s−1 heralding substantial electrosorption capacity for the removal of HSS. The continuous CDI experiments showed that the highest SAC of the newly prepared electrode is 21.5 mg g−1 with maximum ASAR of 0.17 mg g−1 min−1 under 1.0 V and the lowest SAC is 17.3 mg g−1 with ASAR of 0.12 mg g−1 min−1 under 0.8 V. This work introduced the CDI as a potential technique that can be used to cLean Amine solutions advantaged with its low maintenance, easy operation and environment friendliness.
-
comparison of heavy metal ions removal from industrial Lean Amine solvent using ion exchange resins and sand coated with chitosan
Journal of Natural Gas Science and Engineering, 2014Co-Authors: Priyabrata Pal, Fawzi BanatAbstract:Abstract The accumulation of heavy metal ions in natural gas sweetening unit causes problems such as corrosion, foaming and fouling of the equipment. Heavy metal ions being chelated to Lean Amine solvent cannot be removed from the solvent by simple heating in the regenerator, hence requiring new approaches for heavy metal ions removal from aqueous solution of Lean Amine (methyldiethanolAmine) solvent is mandatory. In this study, three different grades of commercial ion exchange resins (A–C) including chitosan coated Resin C and sand coated with chitosan (SCC) were tested to remove major heavy metal ions from raw industrial Lean Amine (MDEA) solution employing the principles of adsorption. Finally, Resin C and SCC were used for elaborate batch and continuous adsorption studies. SEM and FTIR analysis mapped the surface morphology changes and coating of chitosan before adsorption process over the adsorbent. The equilibrium batch sorption studies for heavy metal ions removal were fitted into Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (D–R) isotherms The Langmuir model predicted maximum uptake capacity for chitosan coated resin C and SSC (in brackets) 38.022 (14.184) μg/g for chromium, 59.88 (75.7575) μg/g of iron and 22.47 (185.185) μg/g of lead having total maximum metal removal of 6.858 (5.0226) μequivalence/g. The sorption kinetics obeys pseudo-first-order having rate constant 0.0111 min−1 (0.0095 min−1) for chromium ions. The negative values of Gibb's free energy explains spontaneity of the reaction with endothermic heat of adsorption for the removal of heavy metal ions using resin C and SCC. The breakthrough curves for removal of metal ions in column bed with 2.54 cm column diameter and flow rate of 4.5 ml/min was achieved within 8 h. The parameters k and τ for chitosan coated resin C and SCC were determined to be 0.014 (0.015) min−1 and 551.25 (525.7867) min.
-
adsorptive removal of heat stable salt anions from industrial Lean Amine solvent using anion exchange resins from gas sweetening unit
Journal of Natural Gas Science and Engineering, 2013Co-Authors: Priyabrata Pal, Fawzi Banat, Ahmed S AlshoaibiAbstract:Abstract The formation of heat stable salts (HSS) in natural gas sweetening unit causes many problems such as corrosion, foaming and fouling of the equipment. HSS being resistant to heat cannot be removed from the solvent by simple heating in the regenerator, hence demanding new approaches for HSS removal from aqueous solution of Lean Amine (methyldiethanolAmine) solvent. In this study, four different grades of commercial anion exchange resins designated as Resins A–D were tested to remove major organic acid anions, sulfates and nitrates from direct raw industrial Lean Amine solution. Based upon the best percentage removal data, Resin C was selected for elaborate batch and continuous ion-exchange adsorption studies. The solvent-to-resin ratio was seen to administer a prime effect on controlling the adsorption process. SEM and FTIR analysis on Resin C mapped the surface morphology changes and interaction of HSS adsorption process over the resin. The equilibrium batch sorption studies for organic acid anions removal were fitted into Langmuir, Freundlich, Temkin and Dubinin–Radushkevich (D–R) model isotherms to obtain the best fitted model. It was observed that Langmuir equilibrium isotherm best explained the ion exchange process. The Langmuir model predicted qmax value of 528.24 mg/g. The sorption kinetics obeys pseudo-first-order having rate constant 1.3763 min−1. The negative values of Gibb's free energy explain spontaneity of the reaction with exothermic heat of adsorption (ΔH = −9.428 kJ/mol) for the removal of organic acid anions using anion exchange resins. The breakthrough curves for removal of organics in column bed with 2.54 cm column diameter and flow rate of 5 ml/min was achieved within 7 h.