Reduction of Energy Consumption and Greenhouse Gas Emissions in a Plant for the Separation of Amines

Jantes-Jaramillo, Dionicio; Segovia‐Hernández, Juan Gabriel; Hernández, Salvador

doi:10.1002/ceat.200800100

Cited by 17 publications

(6 citation statements)

References 10 publications

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“…35 In this case we cover a sufficiently complete range of frequencies. Similar studies have been reported by Jantes-Jaramillo et al, 36 G omez-Castro et al, 37 Ibarra-S anchez and Segovia-Hern andez 38…”

Section: Singular Value Decomposition (Svd)supporting

confidence: 86%

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Optimization and Controllability Analysis of Thermally Coupled Reactive Distillation Arrangements with Minimum Use of Reboilers

Vázquez-Ojeda

Segovia‐Hernández

Hernández

et al. 2012

Ind. Eng. Chem. Res.

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The optimal design of reactive complex distillation systems is a highly nonlinear and multivariable problem, and the objective function used as optimization criterion is generally nonconvex with several local optimums and subject to several constraints. The esterification of lauric acid and methanol is explored using thermally coupled distillation sequences with side columns and with a minimum number of reboilers. The product of the esterification can be used as biodiesel. This is a major step forward since thermally coupled reactive distillation sequences with side columns and with a minimum number of reboilers offer significant benefits, such as the following: reductions on both capital investment and operating costs due to the absence of the reboilers and higher conversion and selectivity since products are removed as they are produced as well as no occurrence of thermal degradation of the products due to a lower temperature profile in the column. In this work, we have studied the design of reactive distillation with thermal coupling with a minimum number of reboilers, using differential evolution with restrictions coupled to AspenONE Aspen Plus. Also, we have analyzed the control properties of the reactive distillation schemes studied, and the results indicate that the energy requirements and the total annual cost of the complex distillation sequences with a minimum number of reboilers are reduced significantly in comparison with the conventional reactive distillation process and can be also achieved without significant control problems.

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Section: Singular Value Decomposition (Svd)supporting

confidence: 86%

“…In this case we cover a sufficiently complete range of frequencies. Similar studies have been reported by Jantes-Jaramillo et al, Gómez-Castro et al, Ibarra-Sánchez and Segovia-Hernández among others, for control analysis in studies of thermally coupled distillation systems.…”

Section: Singular Value Decomposition (Svd)supporting

confidence: 85%

Optimization and Controllability Analysis of Thermally Coupled Reactive Distillation Arrangements with Minimum Use of Reboilers

Vázquez-Ojeda

Segovia‐Hernández

Hernández

et al. 2012

Ind. Eng. Chem. Res.

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show abstract

“…In this case a sufficiently complete range of frequencies was covered. Similar studies have been reported by Jantes-Jaramillo et al [23], Gómez-Castro et al [18,24], and Ibarra-Sánchez and Segovia-Hernández [25] among others, for the control analysis of complex distillation systems. Other techniques available for the dynamic analysis of distillation systems are the relative gain array (RGA) analysis and the Niederlinski Index (NI) analysis, which allows to determinate the best pairing alternatives between control loops [26].…”

Section: Singular Value Decomposition Technique (Svd)supporting

confidence: 85%

Process Intensification ☆

Moulijn¹,

Stankiewicz²

2017

Encyclopedia of Sustainable Technologies

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a b s t r a c tThe purification of bioethanol is traditionally performed by extractive distillation using three column sequences. In the present work new arrangements composed of two columns are considered for the analysis of control properties. The control properties study was based on the controllability properties under open loop operation, followed by the dynamic behavior for common industrial operating disturbances. Simulation results were analyzed by the singular value decomposition technique. The results from the theoretical control properties indicate that the presence of a side stream in the extractive distillation sequences does not necessarily provide operational disadvantages. The results also suggest that control properties are ruled by the kind of solvent used. The best performances were obtained when glycerol is used as entrainer.

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“…Large amounts of CO 2 is emitted into the atmosphere and has a rather long atmospheric lifetime [1]. In order to achieve a reduction in the CO 2 release, practical methods such as energy saving, improvement of conversion efficiency, and development of alternative energy sources must be implemented [2].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Ca‐Based Sorbent Multicyclic Behavior in Ca Looping Process for CO₂ Separation

Zhao

Chen

et al. 2009

Chem Eng & Technol

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The Ca-based sorbent looping cycle represents an innovative way of CO 2 capture for power plants. However, the CO 2 capture capacity of the Ca-based sorbent decays sharply with calcination/carbonation cycle number increasing. In order to improve the CO 2 capture capacity of the sorbent in the Ca looping cycle, limestone was modified with acetic acid solution. The cyclic carbonation behaviors of the modified and original limestones were investigated in a twin fixed-bed reactor system. The modified limestone possesses better cyclic carbonation kinetics than the original limestone at each cycle. The modified limestone carbonated at 640-660°C achieves the optimum carbonation conversion. The acetic acid modification improves the long-term performance of limestone, resulting in directly measured conversion as high as 0.4 after 100 cycles, while the original limestone remains at a conversion of less than 0.1 at the same reaction conditions. Both the pore volume and pore area distributions of the calcines derived from the modified limestone are better than those derived from the original limestone. The CO 2 partial pressure for carbonation has greater effect on conversion of the original limestone than on that of the modified sorbent because of the difference in their pore structure characteristics. The carbonation conversion of the original limestone decreases with the increase in particle size, while the change in particle size of the modified sorbent has no clear effect on cyclic carbonation behavior.

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Reduction of Energy Consumption and Greenhouse Gas Emissions in a Plant for the Separation of Amines

Cited by 17 publications

References 10 publications

Optimization and Controllability Analysis of Thermally Coupled Reactive Distillation Arrangements with Minimum Use of Reboilers

Optimization and Controllability Analysis of Thermally Coupled Reactive Distillation Arrangements with Minimum Use of Reboilers

Process Intensification ☆

Enhancement of Ca‐Based Sorbent Multicyclic Behavior in Ca Looping Process for CO₂ Separation

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Reduction of Energy Consumption and Greenhouse Gas Emissions in a Plant for the Separation of Amines

Cited by 17 publications

References 10 publications

Optimization and Controllability Analysis of Thermally Coupled Reactive Distillation Arrangements with Minimum Use of Reboilers

Optimization and Controllability Analysis of Thermally Coupled Reactive Distillation Arrangements with Minimum Use of Reboilers

Process Intensification ☆

Enhancement of Ca‐Based Sorbent Multicyclic Behavior in Ca Looping Process for CO2 Separation

Contact Info

Product

Resources

About

Enhancement of Ca‐Based Sorbent Multicyclic Behavior in Ca Looping Process for CO₂ Separation