Optimization of the Sour Compression Unit (SCU) process for CO2 Purification Applied to Flue Gases Coming from Oxy-combustion Cement Industries

Laribi, Sinda; Dubois, Lionel; Weireld, Guy De; Thomas, Diane

doi:10.1016/j.egypro.2017.03.1188

Cited by 8 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Emissions of greenhouse gases to the atmosphere have caused numerous environmental issues like global warming and many researchers are severely working on a series of new technologies enabling to reduce the problem 1. Methane (CH 4 ) has been recognized as a clean and efficient fuel 2, 3 and a feedstock for the synthesis of many chemical compounds 4.…”

Section: Introductionmentioning

confidence: 99%

Effect of Si/Al Ratio in the Faujasite Structure on Adsorption of Methane and Nitrogen: A Molecular Dynamics Study

et al. 2021

View full text Add to dashboard Cite

Adsorption of methane and nitrogen, in pure and mixture states, on faujasite (FAU) zeolite was investigated by molecular dynamics (MD) simulation. FAU zeolite with Si/Al ratios of 1, 2, and 3 was tested to evaluate the effect of changes in the zeolite structure. Adsorption isotherms of methane and nitrogen were derived using MD simulation with COMPASS force field at various temperatures and pressures and the results were compared with experimental data. Methane/nitrogen selectivity was calculated to analyze the separation performance of FAU zeolite. Under all tested conditions, the calculated selectivities were higher than 2, which was in the acceptable range for separation. Diffusivity of the gases in the zeolite structure was assessed using mean square displacement analysis. The results demonstrated that a lower Si/Al ratio in the FAU structure yield higher methane adsorption.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Si/Al Ratio in the Faujasite Structure on Adsorption of Methane and Nitrogen: A Molecular Dynamics Study

et al. 2021

View full text Add to dashboard Cite

show abstract

“…En el caso del cemento, los procesos de combustión, como se ha comentado previamente, generan NO x , SO 2 y otros contaminantes menores (Valderrama et al 2012), pudiendo incluso considerarse aquellos con contenido de cloro (Carrasco et al 2010, Laribi et al 2017. Este tipo de emisiones son características tanto de los hornos húmedos (Zimwara et al 2012) como los de vía seca.…”

Section: Introductionunclassified

Evolución De Los Factores De Emisión Como Herramienta De Mejora Ambiental. Caso De Estudio Del Sector Cementero Español

Mora

Gil

Sánchez-Martı́n

et al. 2021

RICA

View full text Add to dashboard Cite

La concienciación ambiental en el sector cementero español, unido a la normalización en cuanto a la cuantificación de emisiones nocivas para la salud, seguridad y ambiente, ha propiciado el desarrollo de factores de emisión como herramienta de estandarización a nivel país. Gracias a estos factores es posible establecer su evolución y analizar las causas técnicas que inciden en el comportamiento de las emisiones contaminantes. El presente trabajo de investigación recoge la evolución de dichos factores en una serie histórica que abarca el periodo 2009-2018. El análisis estadístico desarrollado permite establecer factores de emisión para el sector de estudio de forma robusta y fiable. Los resultados recogen la evolución de las emisiones, así como los últimos valores tomados de todo un sector de la industria española. La evolución de los factores de emisión muestra una concienciación cada vez mayor hacia la reducción de gases contaminantes, validando la herramienta factores de emisión y su metodología.

show abstract

“…Many researchers have conducted simulation studies to get the optimum operational parameters of various plant processes, such as Aspen PLUS simulation of integrated gasification combined cycle thermodynamic with in situ desulfurization and CO 2 capture [27], circulating fluidized bed reactor [28], power cycle [29], CO 2 liquefaction [30], sour compression unit for CO 2 purification [31,32] and oxy fuel combustion [33], etc. White et al [34][35][36], devised a mechanism to recover pure CO 2 from the oxy fuel combustion process by deploying computer simulation techniques by Aspen plus.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of an Oxy-Biomass-Based Boiler for Nearly Zero Emission Using Aspen Plus

Shah

Gou

2019

Energies

View full text Add to dashboard Cite

Bioenergy integrated CO2 capture is considered to be one of the viable options to reduce the carbon footprint in the atmosphere, as well as to lower dependability on the usage of fossil fuels. The present simulation-based study comprises the oxy bio-CCS technique with the objective of bringing about cleaner thermal energy production with nearly zero emissions, CO2 capture and purification, and with the ability to remove NOx and SO2 from the flue gas and to generate valuable byproducts, i.e., HNO3 and H2SO4. In the present work, a simulation on utilization of biomass resources by applying the oxy combustion technique was carried out, and CO2 sequestration through pressurized reactive distillation column (PRDC) was integrated into the boiler. Based on our proposed laboratory scale bio-CCS plant with oxy combustion technique, the designed thermal load was kept at 20 kWth using maize stalk as primary fuel. With the objective of achieving cleaner production with near zero emissions, CO2 rich flue gas and moisture generated during oxy combustion were hauled in PRDC for NOx and SO2 absorption and CO2 purification. The oxy combustion technique is unique due to its characteristic low output of NO sourced by fuel inherent nitrogen. The respective mechanisms of fuel inherent nitrogen conversion to NOx, and later, the conversion of NOx and SO2 to HNO3 and H2SO4 respectively, involve complex chemistry with the involvement of N–S intermediate species. Based on the flue gas composition generated by oxy biomass combustion, the focus was given to the fuel NOx, whereby different rates of NO formation from fuel inherent nitrogen were studied to investigate the optimum rates of conversion of NOx during conversion reactions. The rate of conversion of NOx and SO2 were studied under fixed temperature and pressure. The factors affecting the rate of conversion were optimized through sensitivity analysiês to get the best possible operational parameters. These variable factors include ratios of liquid to gas feed flow, vapor-liquid holdups and bottom recycling. The results obtained through optimizing the various factors of the proposed system have shown great potential in terms of maximizing productivity. Around 88.91% of the 20 kWth boiler’s efficiency was obtained. The rate of conversion of NOx and SO2 were recorded at 98.05% and 87.42% respectively under parameters of 30 °C temperature, 3 MPa pressure, 10% feed stream holdup, liquid/gaseous feed stream ratio of 0.04 and a recycling rate of the bottom product of 20%. During the simulation process, production of around four kilograms per hour of CO2 with 94.13% purity was achieved.

show abstract

Optimization of the Sour Compression Unit (SCU) process for CO2 Purification Applied to Flue Gases Coming from Oxy-combustion Cement Industries

Cited by 8 publications

References 20 publications

Effect of Si/Al Ratio in the Faujasite Structure on Adsorption of Methane and Nitrogen: A Molecular Dynamics Study

Effect of Si/Al Ratio in the Faujasite Structure on Adsorption of Methane and Nitrogen: A Molecular Dynamics Study

Evolución De Los Factores De Emisión Como Herramienta De Mejora Ambiental. Caso De Estudio Del Sector Cementero Español

Simulation Study of an Oxy-Biomass-Based Boiler for Nearly Zero Emission Using Aspen Plus

Contact Info

Product

Resources

About