Separation of C-4 and C-6 isomer mixtures and alcohol-water solutions by monolith supported B-ZSM-5 membranes

Bowen, TC
Kalıpçılar, Halil
Falconer, JL
Noble, RD


Separation of silkworm proteins in cocoon cooking wastewaters via nanofiltration: Effect of solution pH on enrichment of sericin
ÇAPAR, GÖKŞEN (2012-02-01)
Cocoon cooking wastewater contains waste silkworm proteins including sericin, which is a valuable raw material for many industries including cosmetics and pharmaceuticals. Sericin can be recovered via nanofiltration (NF) with high efficiency; however the process conditions need to be optimized to maximize separation. In this study, the effect of solution pH on NF performance was investigated for separation of silkworm proteins towards sericin enrichment. Solution pH (3.5-9.0) slightly influenced sericin rej...
Preparation of MFI type zeolite membranes in a flow system with circulation of the synthesis solution
Çulfaz Emecen, Pınar Zeynep; Kalıpçılar, Halil (2006-06-20)
MFI type zeolite membranes were prepared on seeded tubular alumina supports in a flow system where the synthesis solution was circulated through the support with flow rates of 6, 24 and 48 mL/min. Syntheses were carried out using clear solutions, at 80 degrees C and 95 degrees C at atmospheric pressure in the flow system, and at autogeneous pressure in the batch system. The membranes synthesized in the flow system had thickness of 1-2 mu m, and were thinner than the membranes synthesized in the batch system...
Separation of sericin from fatty acids towards its recovery from silk degumming wastewaters
Capar, Goksen; Aygun, S. Seylan; Gecit, M. Rusen (Elsevier BV, 2009-10-15)
Sericin is a valuable protein, which is currently discarded as a waste in silk industry. Silk degumming wastewaters (SDW) are abundant sources of sericin, however, they contain impurities such as salts of fatty acids (soap) in conventional degumming processes. In this study, a process consisting of centrifugation (CFG), low temperature crystallization (LTC) and ultrafiltration (UF) was developed to separate sericin from fatty acids towards its recovery from conventional SDW. Complete removal of fatty acids ...
Removal of hexavalent chromium anions via polymer enhanced ultrafiltration using a fully ionized polyelectrolyte
HAKTANIR, CEREN; Ozbelge, H. Onder; Bicak, Niyazi; Yılmaz, Levent (Informa UK Limited, 2017-01-01)
A fully ionized polyelectrolyte was synthesized for Cr(VI) removal from aqueous solutions by continuous polymer enhanced ultrafiltration (PEUF). Effect of operating parameters such as pH, loading, polymer, and competing ion concentrations were examined. Highest Cr(VI) retention was obtained at a loading of 0.01 at pH 4. Increasing both polymer and chromate concentrations at a fixed loading of 0.01 decreased the retention which demonstrated the effect of crowding. In the presence of competing anions such as ...
Synthesis and separation properties of B-ZSM-5 zeolite membranes on monolith supports
Kalıpçılar, Halil; Noble, RD; Falconer, JL (2002-12-01)
Alumina-coated, silicon carbide monoliths were used as supports for B-ZSM-5 zeolite membranes, which were synthesized by in situ hydrothermal crystallization. Both 2 turn x 2 mm (66 channels) and 4 mm x 4 mm (22 channels) monoliths with effective membrane area/volume ratios of 10.6 and 7.2 cm(2)/cm(3), respectively, were used. The membranes separated C-4 and C-6 hydrocarbon isomer vapor mixtures with high selectivities. The selectivities and permeances were comparable to tubular ZSM-5 membranes for butane i...
Citation Formats
T. Bowen, H. Kalıpçılar, J. Falconer, and R. Noble, “Separation of C-4 and C-6 isomer mixtures and alcohol-water solutions by monolith supported B-ZSM-5 membranes,” DESALINATION, pp. 331–332, 2002, Accessed: 00, 2020. [Online]. Available: