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Gaseous Fuel Production from Nonrecyclable Paper Wastes by Using Supported Metal Catalysts in High‐Temperature Liquid Water
Author(s) -
Yamaguchi Aritomo,
Hiyoshi Norihito,
Sato Osamu,
Bando Kyoko K.,
Shirai Masayuki
Publication year - 2010
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201000082
Subject(s) - catalysis , methanation , cellulose , ruthenium , methane , platinum , carbon fibers , hydrogen , carbon dioxide , hydrogen production , waste management , liquid fuel , materials science , rhodium , water gas , chemistry , chemical engineering , syngas , organic chemistry , composite number , engineering , composite material , combustion
Paper wastes are used for the production of gaseous fuels over supported metal catalysts. The gasification of the nonrecyclable paper wastes, such as shredded documents and paper sludge, is carried out in high‐temperature liquid water. The order of the catalytic activity for the gasification is found to be ruthenium>rhodium≫platinum≫palladium. A charcoal‐supported ruthenium catalyst (Ru/C) is the most effective for the gasification of paper and cellulose. Paper wastes are gasified to a limited degree (32.6 carbon %) for 30 min in water at 523 K to produce methane and carbon dioxide, with a small amount of hydrogen. At 573 K, more complete gasification with almost 100 carbon % is achieved within 10 min in water. At 523 K, the gas yield of paper gasification over Ru/C is higher than that of cellulose powder. The gas yields are increased by ball‐milling treatment of the recycled paper and cellulose powder. Printed paper wastes are also gasified at 523 K in water.