TY - CHAP
T1 - Separation of p-Xylene from Multicomponent Vapor Mixtures using Tubular MFI Zeolite Membranes
AU - Gu, Xuehong
AU - Dong, Junhang
AU - Nenoff, Tina M.
AU - Ozokwelu, Dickson E.
PY - 2007
Y1 - 2007
N2 - MFI zeolite membranes have been synthesized on tubular α-alumina substrates to investigate the separation of p-xylene (PX) from m-xylene (MX) and o-xylene (OX) in multicomponent mixtures and ranges of feed pressure and operating temperature. 1,3,5-triisopropylbenzene was added to the feed stream for online membrane modification. Separation of PX from MX and OX through the MFI membranes relies primarily on shape-selectivity when the xylene sorption level in the zeolite is sufficiently low. For an eight-component mixture containing hydrogen, hydrocarbons, PX, MX, and OX, PX/(MX+OX) selectivity of 7.71 with PX flux of 6.8×10-6mol/m2.s was obtained at 250°C and atmospheric feed pressure.
AB - MFI zeolite membranes have been synthesized on tubular α-alumina substrates to investigate the separation of p-xylene (PX) from m-xylene (MX) and o-xylene (OX) in multicomponent mixtures and ranges of feed pressure and operating temperature. 1,3,5-triisopropylbenzene was added to the feed stream for online membrane modification. Separation of PX from MX and OX through the MFI membranes relies primarily on shape-selectivity when the xylene sorption level in the zeolite is sufficiently low. For an eight-component mixture containing hydrogen, hydrocarbons, PX, MX, and OX, PX/(MX+OX) selectivity of 7.71 with PX flux of 6.8×10-6mol/m2.s was obtained at 250°C and atmospheric feed pressure.
UR - http://www.scopus.com/inward/record.url?scp=35348922890&partnerID=8YFLogxK
U2 - 10.1016/S0167-2991(07)80944-X
DO - 10.1016/S0167-2991(07)80944-X
M3 - 章节
AN - SCOPUS:35348922890
SN - 0444530681
SN - 9780444530684
T3 - Studies in Surface Science and Catalysis
SP - 949
EP - 954
BT - From Zeolites to Porous MOF Materials - The 40th Anniversary of International Zeolite Conference
PB - Elsevier Inc.
ER -