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Continuous experiment regarding hydrogen production by coal/CaO reaction with steam (I) gas products by Shiying Lin; Michiaki Harada; Yoshizo Suzuki; Hiroyuki Hatano is a Engineering article available to read on EtoBox.

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Coal/CaO powder mixtures were continuously supplied into a reactor to react with steam at high pressure and high temperature. At 923 K and 5.0 MPa, the gas produced from the reaction of Taiheiyo coal/CaO with steam consisted of mainly H 2 , with smaller amounts of CH 4 , C 2 H 4 , C 2 H 6 and CO 2 . Increasing the pressure enhanced H 2 production and CH 4 decomposition. Above 3 MPa, the gas from the reaction contained ,3% CO and CO 2 . Under high pressure, CaO reacted with steam to form Ca(OH) 2 which absorbed CO 2 . The H 2 /CH 4 ratio in the product gases from three different rank coals (Datong coal (bituminous), Taiheiyo coal (sub-bituminous), Wyoming coal (lignite) followed the order Datong . Taiheiyo . Wyoming. The Wyoming and Datong coals produced less H 2 than the Taiheiyo coal.

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Author

Shiying Lin; Michiaki Harada; Yoshizo Suzuki; Hiroyuki Hatano

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0016-2361)

Published

2004

Language

EN

Field

Engineering (Physical Sciences)