Effect of operating conditions on pervaporation of methanol/methyl tert-butyl ether mixtures

2008 ◽  
Vol 47 (7) ◽  
pp. 1069-1074 ◽  
Author(s):  
Mehrnaz Peivasti ◽  
Ali Madandar ◽  
Toraj Mohammadi
Keyword(s):  
Operating Conditions ◽  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Tert Butyl

Composite Chitosan Membranes for the Separation of Methanol/methyl tert-butyl Ether Mixtures

2014 ◽  
Vol 67 (2) ◽  
Author(s):  
Mohd Ghazali Mohd Nawawi ◽  
Zafifah Zamrud
Keyword(s):  
Surface Morphology ◽  
Composite Membranes ◽  
Operating Conditions ◽  
Methanol Concentration ◽  
Methyl Tert Butyl Ether ◽  
Optimum Operating ◽  
Butyl Ether ◽  
Tert Butyl ◽  
Separation Factors ◽  
Swelling Characteristics

Composite membranes from chitosan blended with different ratios of chitosan were developed for the pervaporation of methanol/methyl tert-butyl ether mixtures. The composite membranes were characterized for surface morphology and sorption. Surface morphology showed chitosan and PVA were homogenously blend for all chitosan composition. Swelling characteristics of composites membrane were affected by methanol concentration as well as chitosan composition in the blend. Increasing feed temperatures and methanol concentration in the feed in pervaporation increased the flux and decreased the separation factor. The composite membranes containing 20 to 40 wt% chitosan was chosen as the preferred membrane formulation to yield fluxes ranging from 50 to 70 g/m2hr with separation factors ranging from 55 to 80 at optimum operating conditions of 30 wt% methanol in the feed and feed temperature of 50 0C.

Direct dissolution of gallstones with methyl tert-butyl ether (MTBE) via endoscopic transpapillary catheterization in the gallbladder (ETCG)

1994 ◽  
Vol 29 (4) ◽  
pp. 486-494 ◽  
Author(s):  
Naohito Uchida ◽  
Toshiaki Nakatsu ◽  
Shuko Hirabayashi ◽  
Atsushi Minami ◽  
Hiroki Fukuma ◽  
...  
Keyword(s):  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Tert Butyl ◽  
Direct Dissolution ◽  
Dissolution Of Gallstones

Economic efficiency of utilization of methyl tert-butyl ether as a component of high-octane automotive gasoline

1979 ◽  
Vol 15 (5) ◽  
pp. 338-340 ◽  
Author(s):  
L. M. Noreiko ◽  
S. A. Feigin ◽  
E. D. Radchenko ◽  
A. V. Agafonov ◽  
G. P. Klishina
Keyword(s):  
Economic Efficiency ◽  
Automotive Gasoline ◽  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Tert Butyl ◽  
High Octane
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