Energy requirements, GHG emissions and investment costs in natural gas sweetening processes

Gutierrez, Juan Pablo; Ruiz, Elisa Liliana Ale; Erdmann, Eleonora

doi:10.1016/j.jngse.2016.12.036

Cited by 32 publications

(15 citation statements)

References 22 publications

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“…Beside of its toxic effects, CO 2 corrodes the transportation and storage systems in the presence of water. Also, the significant amounts of nitrogen in the natural gas should be purified to meet the pipeline quality for minimum heating value specifications, typically > 90 % methane [9,10]. As a result, the natural gas upgrading should be implemented during the sweeting processes to meet the ''pipeline-quality'' methane.…”

Section: Biogas Upgrading and Natural Gas Purificationmentioning

confidence: 99%

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Analyses of Adsorption Behavior of CO₂, CH₄, and N₂ on Different Types of BETA Zeolites

et al. 2019

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The adsorption equilibrium and kinetics of CO 2 , CH 4 , and N 2 on three types of BETA zeolites were investigated at different temperatures and a defined partial pressure range from dynamic breakthrough experiments. The adsorbed amount followed the decreasing order of CO 2 > CH 4 > N 2 for all studied materials. For the same ratio of SiO 2 /Al 2 O 3 , the Na-BETA-25 zeolite showed a higher uptake capacity than H-BETA-25, due to the presence of a Na + cationic center. Comparing the same H + compensation cation, zeolite H-BETA-25 expressed a slightly higher adsorption capacity than H-BETA-150. Regarding the selectivity of gases, based on their affinity constants, H-BETA-150 displayed the best ability. The adsorption kinetics was considered using the zero-length-column (ZLC) technique. Response surface methodology (RSM) was applied to evaluate the interactions between adsorption parameters and to describe the process.

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Section: Biogas Upgrading and Natural Gas Purificationmentioning

confidence: 99%

“…(8) and 9, while for macropore diffusion control, these parameters are calculated by Eqs. (10) and (11).…”

Section: Zlc Modelmentioning

confidence: 99%

Analyses of Adsorption Behavior of CO₂, CH₄, and N₂ on Different Types of BETA Zeolites

et al. 2019

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“…The mixed solvent with the above mentioned specifications reduced the costs of raw materials, regenerator, and trim cooler energy requirements. Gutierrez discussed methods of reduction of greenhouse gases in the treatment of NG processing with energy optimization techniques.…”

Section: Process Modelingmentioning

confidence: 99%

Mathematical Modeling, Parametric Estimation, and Operational Control for Natural Gas Sweetening Processes

Selvan

Panda

2017

ChemBioEng Reviews

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As a result of the increased energy demand and the required environmental compliance, purification of natural gas (NG) need to be processed through more efficient technologies. Most the NG sources contain H2S and CO2 as acidic contaminants causing corrosion, reduction in the calorific value of the fuel, and toxicity. Removal of these gases (gas sweetening) is mostly performed in a reactive absorber followed by a stripper for solvents regeneration. Amine solvents are very suitable due to their natural affinity towards the acid gases. In the setting‐up of newer plants or retrofitting of old units in existing plants to improve the efficiency of the sweetening process, modeling, optimization, and safer operational control of the process have drawn the attention of many researchers. The development of better models must take into account the synthesis and implementation of proper control strategies. Rate‐based, equilibrium, and kinetic models supported by thermodynamic properties of the components have been discussed here and experiments carried out to identify new process models have also been presented.

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“…Currently, there is a great deal of interest in the development of methods that can be used to minimize the generation of pollution, and there are numerous efforts underway in this area [18]. Specifically, this interest has increased with the world's awareness of CO 2 emissions and made process engineering adopt practices to mitigate the effects of climate change [19].…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of a Carbon Dioxide Separation Process with Market Uncertainty and Waste Reduction

2019

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The aim of this work is to optimize the conceptual design of an amine-based carbon dioxide (CO2) separation process for Enhanced Oil Recovery (EOR). A systematic approach is applied to predict the economic profitability of the system while reducing the environmental impacts. Firstly, we model the process with UniSim and determine the governing degrees of freedom (DoF) through a sensitivity analysis. Then, we proceed with the formulation of the economic problem, where the employment of econometric models allows us to predict the highest dynamic economic potential (DEP). In the second part, we apply the Waste Reduction (WAR) algorithm to quantify the environmental risks of the studied process. This method is based on the minimization of the potential environmental indicator (PEI) by using the generalization of the Waste Reduction algorithm. Results show that the CO2 separation plant is promising in terms of economic revenues. However, the PEI value indicates that the higher the profitability, the larger the environmental risk. The optimal value of the DEP corresponds to 0.0274 kmol/h and 60 °C, with a plant capacity according to the mole flow rate of the produced acid gas. In addition, the highest environmental risk is observed at the upper bounds of the DoF.

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Energy requirements, GHG emissions and investment costs in natural gas sweetening processes

Cited by 32 publications

References 22 publications

Analyses of Adsorption Behavior of CO₂, CH₄, and N₂ on Different Types of BETA Zeolites

Analyses of Adsorption Behavior of CO₂, CH₄, and N₂ on Different Types of BETA Zeolites

Mathematical Modeling, Parametric Estimation, and Operational Control for Natural Gas Sweetening Processes

Optimal Design of a Carbon Dioxide Separation Process with Market Uncertainty and Waste Reduction

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Energy requirements, GHG emissions and investment costs in natural gas sweetening processes

Cited by 32 publications

References 22 publications

Analyses of Adsorption Behavior of CO2, CH4, and N2 on Different Types of BETA Zeolites

Analyses of Adsorption Behavior of CO2, CH4, and N2 on Different Types of BETA Zeolites

Mathematical Modeling, Parametric Estimation, and Operational Control for Natural Gas Sweetening Processes

Optimal Design of a Carbon Dioxide Separation Process with Market Uncertainty and Waste Reduction

Contact Info

Product

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About

Analyses of Adsorption Behavior of CO₂, CH₄, and N₂ on Different Types of BETA Zeolites

Analyses of Adsorption Behavior of CO₂, CH₄, and N₂ on Different Types of BETA Zeolites