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Chemical Engineering

Carbon dioxide

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Full-Text Articles in Engineering

Removing Endotoxin From Metallic Biomaterials With Compressed Carbon Dioxide-Based Mixtures, Pedro Tarafa, Eve Williams, Samir Panvelker, Jian Zhang, Michael Matthews Sep 2014

Removing Endotoxin From Metallic Biomaterials With Compressed Carbon Dioxide-Based Mixtures, Pedro Tarafa, Eve Williams, Samir Panvelker, Jian Zhang, Michael Matthews

Michael A. Matthews

No abstract provided.


Compressed Carbon Dioxide (Co2) For Decontamination Of Biomaterials And Tissue Scaffolds, Pedro Tarafa, Aidaris Jiménez, Jian Zhang, Michael Matthews Sep 2014

Compressed Carbon Dioxide (Co2) For Decontamination Of Biomaterials And Tissue Scaffolds, Pedro Tarafa, Aidaris Jiménez, Jian Zhang, Michael Matthews

Michael A. Matthews

No abstract provided.


Compatibility Of Medical-Grade Polymers With Dense Co2, A. Jiménez, G. Thompson, Michael Matthews, T. Davis, K. Crocker, Jed Lyons, A. Trapotsis Sep 2014

Compatibility Of Medical-Grade Polymers With Dense Co2, A. Jiménez, G. Thompson, Michael Matthews, T. Davis, K. Crocker, Jed Lyons, A. Trapotsis

Michael A. Matthews

No abstract provided.


Co2 Capture By Amine-Enriched Fly Ash Carbon Sorbents, Steven Chuang, M. Gray, Y. Soong, K. Champagne, John Baltrus, R. Stevens, P. Toochinda Jul 2014

Co2 Capture By Amine-Enriched Fly Ash Carbon Sorbents, Steven Chuang, M. Gray, Y. Soong, K. Champagne, John Baltrus, R. Stevens, P. Toochinda

Steven S.C. Chuang

The capture of CO2 from gas streams has been achieved by the utilization of amine-enriched fly ash carbon sorbent system. The initial fly ash carbon sorbents were generated by the chemical treatment of carbon-enriched fly ash concentrates with a 3-chloropropylamine-hydrochloride (CPAHCL) solution at 25 °C. It was determined that these amine-enriched fly ash carbon sorbents performed at a 9% CO2 capture capacity based on commercially available sorbents. The chemical sorption performance of these amine-enriched fly ash carbon sorbents will be described within this paper.


Improved Immobilized Carbon Dioxide Capture Sorbents, M. Gray, Y. Soong, K. Champagne, H. Pennline, J. Baltrus, R. Stevens, R. Khatri, Steven Chuang, T. Filburn Jul 2014

Improved Immobilized Carbon Dioxide Capture Sorbents, M. Gray, Y. Soong, K. Champagne, H. Pennline, J. Baltrus, R. Stevens, R. Khatri, Steven Chuang, T. Filburn

Steven S.C. Chuang

The capture of carbon dioxide from simulated flue gas streams has been achieved by using immobilized and aminated-SBA-15 solid sorbents. SBA-15, a mesoporous silica material with a uniform pore size of 21 nm and a surface area of 200∼230 m2/g. The solid sorbents prepared in this study exhibit similar or improved capacities relative to those already used to control CO2 concentrations in submarine and spacecraft applications. The results suggest that immobilized secondary amines have a stronger affinity for the capture of carbon dioxide from simulated flue gas streams than primary amines. The performance of these immobilized and aminated-SBA-15 solid sorbents …