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Methanol Decomposition by the Use of an Assemble‐Type Microreactor
Author(s) -
Maki T.,
Ueyama T.,
Mae K.
Publication year - 2005
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200407115
Subject(s) - microreactor , microchannel , methanol , catalysis , yield (engineering) , selectivity , chemical engineering , hydrogen , chemistry , decomposition , materials science , nanotechnology , organic chemistry , composite material , engineering
A flexible catalytic microreactor was developed on the basis of a new concept of element assembly. The proposed reactor consists of elements of various catalysts with large surface area and reactor elements fabricated separately, and the microspace is created by optionally assembling them. A microreactor, assembled of 21 sets of elements, was used to decompose methanol for selectively producing hydrogen. At a reaction temperature of 280 °C, methanol conversion and hydrogen yield successfully reached 93 % and 1.48, respectively. Conversion increased with decreasing size of the microchannel, keeping the ratio of H 2 to CO at ca. 2. This clearly shows that the reaction in the microchannel is advantageous to the conversion and selectivity compared with those reached in a conventional fixed bed reactor.