Hybrid FSC membrane for CO₂ removal from natural gas: Experimental, process simulation, and economic feasibility analysis

TY - JOUR

T1 - Hybrid FSC membrane for CO2 removal from natural gas

T2 - Experimental, process simulation, and economic feasibility analysis

AU - He, Xuezhong

AU - Hägg, May Britt

AU - Kim, Taek Joong

N1 - Publisher Copyright: © 2014 American Institute of Chemical Engineers.

PY - 2014/12/1

Y1 - 2014/12/1

N2 - The novel fixed-site-carrier (FSC) membranes were prepared by coating carbon nanotubes reinforced polyvinylamine/polyvinyl alcohol selective layer on top of ultrafiltration polysulfone support. Small pilot-scale modules with membrane area of 110-330 cm2 were tested with high pressure permeation rig. The prepared hybrid FSC membranes show high CO2 permeance of 0.084-0.218 m3 (STP)/(m2 h bar) with CO2/CH4 selectivity of 17.9-34.7 at different feed pressures up to 40 bar for a 10% CO2 feed gas. Operating parameters of feed pressure, flow rate, and CO2 concentration were found to significantly influence membrane performance. HYSYS simulation integrated with ChemBrane and cost estimation was conducted to evaluate techno-economic feasibility of a membrane process for natural gas (NG) sweetening. Simulation results indicated that the developed FSC membranes could be a promising candidate for CO2 removal from low CO2 concentration (10%) NGs with a low NG sweetening cost of 5.73E-3 $/Nm3 sweet NG produced.

AB - The novel fixed-site-carrier (FSC) membranes were prepared by coating carbon nanotubes reinforced polyvinylamine/polyvinyl alcohol selective layer on top of ultrafiltration polysulfone support. Small pilot-scale modules with membrane area of 110-330 cm2 were tested with high pressure permeation rig. The prepared hybrid FSC membranes show high CO2 permeance of 0.084-0.218 m3 (STP)/(m2 h bar) with CO2/CH4 selectivity of 17.9-34.7 at different feed pressures up to 40 bar for a 10% CO2 feed gas. Operating parameters of feed pressure, flow rate, and CO2 concentration were found to significantly influence membrane performance. HYSYS simulation integrated with ChemBrane and cost estimation was conducted to evaluate techno-economic feasibility of a membrane process for natural gas (NG) sweetening. Simulation results indicated that the developed FSC membranes could be a promising candidate for CO2 removal from low CO2 concentration (10%) NGs with a low NG sweetening cost of 5.73E-3 $/Nm3 sweet NG produced.

KW - CO removal

KW - Economic feasibility analysis

KW - Fixed-site-carrier membranes

KW - Natural gas sweetening

KW - Process simulation

UR - http://www.scopus.com/inward/record.url?scp=84921856214&partnerID=8YFLogxK

U2 - 10.1002/aic.14600

DO - 10.1002/aic.14600

M3 - 文章

AN - SCOPUS:84921856214

SN - 0001-1541

VL - 60

SP - 4174

EP - 4184

JO - AICHE Journal

JF - AICHE Journal

IS - 12

ER -