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One‐step production of CO‐ and CO 2 ‐free hydrogen from biomass
Author(s) -
Ishida Minoru,
Otsuka Kiyoshi,
Takenaka Sakae,
Yamanaka Ichiro
Publication year - 2005
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.1188
Subject(s) - cellulose , catalysis , hydrogen production , hydrogen , chemistry , biomass (ecology) , alkali metal , starch , nuclear chemistry , inorganic chemistry , organic chemistry , agronomy , biology
Abstract The reaction between a biomass (cellulose, sucrose, glucose, starch, cotton, or Japanese paper) and NaOH in the presence of water vapor produced pure hydrogen without CO and CO 2 at temperatures in the range 473–623K. The addition of Ni/Al 2 O 3 or Rh/Al 2 O 3 catalyst to cellulose enhanced the production of hydrogen at <573 K. The reaction between cellulose and NaOH can be written as: C 6 H 10 O 5 + 12NaOH + H 2 O = 6Na 2 CO 3 + 12H 2 . The reactivities of alkali metal hydroxides were: KOH > NaOH ≫ LiOH. Copyright © 2004 Society of Chemical Industry