Skip to main content

Ultrafiltration of W/CO 2 Microemulsions in Ceramic Membranes

Buy Article:

$55.00 plus tax (Refund Policy)

Water‐in‐CO 2 (W/CO 2 ) reverse microemulsions stabilized with 1100 Da poly(ethylene glycol)‐poly(propylene glycol)‐poly(ethylene glycol) block copolymer were recovered using an ultrafiltration ceramic membrane in a custom high‐pressure cross‐flow separation unit. Viscosity‐corrected liquid CO 2 flux (298 K) through the membrane was investigated as a function of time and surfactant concentration to determine the cake layer mass transfer resistance. Rapid CO 2 flux decline was observed with increasing surfactant concentration, denoting cake layer buildup on the membrane surface. For instance, at 0.09 and 0.55 wt% surfactant, the ratio of cake resistance to membrane resistance was 0.4 and 3.8, respectively. Based on our previous work, the reverse‐micelles retain their aqueous core and are not altered during filtration. Ultimately, inorganic membrane separations can reduce energy consumption associated with compression/expansion cycles typically used in CO 2 ‐based processes.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Keywords: Inorganic membrane; carbon dioxide; ceramic membrane; supercritical fluid; ultrafiltration

Document Type: Research Article

Affiliations: 1: Department of Mechanical & Chemical Engineering, North Carolina Agricultural & Technical State University, Greensboro, NC, USA 2: Department of Mechanical & Chemical Engineering and NSF Science & Technology Center for Environmentally Responsible Solvents & Processes, North Carolina Agricultural & Technical State University, Greensboro, NC, USA

Publication date: 2006-01-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more