کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
232332 1427482 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bronsted acid catalyzed dehydration of neat supercritical tert-butanol in a capillary micro-reactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Bronsted acid catalyzed dehydration of neat supercritical tert-butanol in a capillary micro-reactor
چکیده انگلیسی

Dehydration of supercritical t-butanol to yield 2-methyl-propene was observed to occur rapidly and in high yield at elevated pressures without addition of a catalyst. A capillary micro-reactor was used to carry out the reaction at pressures up to 3.1 kbar. The products were characterized in situ using FTIR and NMR and confirmed using GC-MS. The dehydration reaction is proposed to occur by a self-catalyzed Bronsted acid mechanism. An addition driving force for the reaction was the phase separation of the 2-methyl-propene product. Self-catalyzed dehydration of t-butanol is a limiting factor for operations in supercritical t-butanol, but it implies the t-butanol may be employed as a self-neutralizing catalyst under these conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 37, Issue 1, February 2006, Pages 102–106
نویسندگان
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