Documents disponibles écrits par cet auteur

Development of an electrochemical acidification cell for the recovery of CO2 and H2 from seawater / Heather D. Willauer in Industrial & engineering chemistry research, Vol. 50 N° 17 (Septembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 17 (Septembre 2011) . - pp. 9876-9882 Titre : Development of an electrochemical acidification cell for the recovery of CO2 and H2 from seawater Type de document : texte imprimé Auteurs : Heather D. Willauer, Auteur ; Felice DiMascio, Auteur ; Dennis R. Hardy, Auteur Année de publication : 2011 Article en page(s) : pp. 9876-9882 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Seawater  Carbon  dioxide  Acidification Résumé : Based on continuous electrodeionization (CEDI) technology, a novel hybrid electrochemical acidification process has been developed to extract large quantities of CO2 from seawater. This indirect approach acidifies seawater to recover CO2 from bicarbonate. The electrolytic regeneration of cation exchange resin allowed simultaneous and continuous ion exchange and regeneration to occur within the cell along with control of the seawater pH. Lowering seawater pH was found to be proportional to the applied current to the cell, and the CO2 in the acidified seawater was readily removed at pH less than 6.0. In addition, the cell produced a portion of hydrogen gas without additional energy penalties. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24483630 [article] Development of an electrochemical acidification cell for the recovery of CO2 and H2 from seawater [texte imprimé] / Heather D. Willauer, Auteur ; Felice DiMascio, Auteur ; Dennis R. Hardy, Auteur . - 2011 . - pp. 9876-9882. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 17 (Septembre 2011) . - pp. 9876-9882 Mots-clés : Seawater  Carbon  dioxide  Acidification Résumé : Based on continuous electrodeionization (CEDI) technology, a novel hybrid electrochemical acidification process has been developed to extract large quantities of CO2 from seawater. This indirect approach acidifies seawater to recover CO2 from bicarbonate. The electrolytic regeneration of cation exchange resin allowed simultaneous and continuous ion exchange and regeneration to occur within the cell along with control of the seawater pH. Lowering seawater pH was found to be proportional to the applied current to the cell, and the CO2 in the acidified seawater was readily removed at pH less than 6.0. In addition, the cell produced a portion of hydrogen gas without additional energy penalties. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24483630

Development of an electrochemical acidification cell for the recovery of CO2 and H2 from seawater II. / Heather D. Willauer in Industrial & engineering chemistry research, Vol. 51 N° 34 (Août 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 34 (Août 2012) . - pp. 11254-11260 Titre : Development of an electrochemical acidification cell for the recovery of CO2 and H2 from seawater II. : Evaluation of the cell by natural seawater Type de document : texte imprimé Auteurs : Heather D. Willauer, Auteur ; Felice DiMascio, Auteur ; Dennis R. Hardy, Auteur Année de publication : 2012 Article en page(s) : pp. 11254-11260 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Seawater  Carbon  dioxide  Acidification Résumé : A novel electrochemical acidification process has been developed in a successful feasibility attempt to extract large quantities of CO2 in the form of bicarbonate and carbonate from seawater for potential use as a source of carbon for hydrocarbon production at sea. This indirect approach acidifies seawater by the electrolytic production of acid. Lowering seawater pH was found to be proportional to the applied current to the cell Spontaneous degassing and recovery of CO2 below pH 4.5 was reduced from 92% in synthetic seawater to 30% in natural seawater. The effects of increased operational time, flow rate, current, and natural seawater's complex equilibrium buffer on process performance and CO2 recovery have been shown to be essential for further improvements in future cell design, efficiency, and scale-up. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26299451 [article] Development of an electrochemical acidification cell for the recovery of CO2 and H2 from seawater II. : Evaluation of the cell by natural seawater [texte imprimé] / Heather D. Willauer, Auteur ; Felice DiMascio, Auteur ; Dennis R. Hardy, Auteur . - 2012 . - pp. 11254-11260. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 34 (Août 2012) . - pp. 11254-11260 Mots-clés : Seawater  Carbon  dioxide  Acidification Résumé : A novel electrochemical acidification process has been developed in a successful feasibility attempt to extract large quantities of CO2 in the form of bicarbonate and carbonate from seawater for potential use as a source of carbon for hydrocarbon production at sea. This indirect approach acidifies seawater by the electrolytic production of acid. Lowering seawater pH was found to be proportional to the applied current to the cell Spontaneous degassing and recovery of CO2 below pH 4.5 was reduced from 92% in synthetic seawater to 30% in natural seawater. The effects of increased operational time, flow rate, current, and natural seawater's complex equilibrium buffer on process performance and CO2 recovery have been shown to be essential for further improvements in future cell design, efficiency, and scale-up. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26299451

Incompatibility of fischer-tropsch diesel with petroleum and soybean biodiesel blends / George W. Mushrush in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 7364–7367 Titre : Incompatibility of fischer-tropsch diesel with petroleum and soybean biodiesel blends Type de document : texte imprimé Auteurs : George W. Mushrush, Auteur ; Heather D. Willauer, Auteur ; Joy W. Bauserman, Auteur Année de publication : 2009 Article en page(s) : pp. 7364–7367 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Middle  distillate  fuels  Fischer-tropsch  diesel  Natural  gas  Coal Résumé : The Department of Defense is the largest consumer of middle distillate fuels. It has been recommended that alternative fuel sources be considered as replacements or blending stocks for middle distillate ground transportation and marine fuels. Therefore, the search for suitable replacements or blending stocks is earnestly continuing. Renewable agricultural crops such as soybeans and others are now in the forefront. Nonrenewable synthetic fuels such as those produced by Fischer−Tropsch, FT, synthesis from coal and natural gas have been suggested. It is probable that several of these substitutes would be simultaneously blended into a middle distillate petroleum based diesel fuel. Care must be employed when blending fuels so that fuel specifications and storage stability are not decreased. This paper compares the storage stability of a three-part mixture consisting of Fischer−Tropsch diesel, a petroleum diesel, and a 5% and 10% soy biodiesel under ambient conditions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801867t [article] Incompatibility of fischer-tropsch diesel with petroleum and soybean biodiesel blends [texte imprimé] / George W. Mushrush, Auteur ; Heather D. Willauer, Auteur ; Joy W. Bauserman, Auteur . - 2009 . - pp. 7364–7367. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 15 (Août 2009) . - pp. 7364–7367 Mots-clés : Middle  distillate  fuels  Fischer-tropsch  diesel  Natural  gas  Coal Résumé : The Department of Defense is the largest consumer of middle distillate fuels. It has been recommended that alternative fuel sources be considered as replacements or blending stocks for middle distillate ground transportation and marine fuels. Therefore, the search for suitable replacements or blending stocks is earnestly continuing. Renewable agricultural crops such as soybeans and others are now in the forefront. Nonrenewable synthetic fuels such as those produced by Fischer−Tropsch, FT, synthesis from coal and natural gas have been suggested. It is probable that several of these substitutes would be simultaneously blended into a middle distillate petroleum based diesel fuel. Care must be employed when blending fuels so that fuel specifications and storage stability are not decreased. This paper compares the storage stability of a three-part mixture consisting of Fischer−Tropsch diesel, a petroleum diesel, and a 5% and 10% soy biodiesel under ambient conditions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801867t